product features ? six winding, surface mount devices that offer more than 500 usable inductor or transformer configurations ? high power density and low profile ? low radiated noise and tightly coupled windings ? power range from 1 watt C 70 watts ? frequency range to over 1 mhz ? 500 vac isolation ? ferrite core material vp versa-pac? inductors and transformers (surface mount) technical data 4301 effective august 2017 supersedes march 2007 applications ? inductors: buck, boost, coupled, choke, filter, resonant, noise filtering, differential, forward, common mode ? transformers: flyback, feed forward, push- pull, multiple output, inverter, step-up, step- down, gate drive, base drive, wide band, pulse, control, impedance, isolation, bridging, ringer, converter, auto automotive electronics (under hood, interior/exterior) ? t elematics ? gps ? led lighting ? lcd display ? portable media devices environmental data ? storage temperature range (component): -55 c to +125 c ? operating temperature range: -40 c to +125 c (ambient plus self-temperature rise) ? solder reflow temperature: j-std-020 (latest revision) compliant
2 t echnical data 4301 effective august 2017 vp versa-pac? inductors and transformers (surface mount) product specifications leaka ge thermal part (1) l( base ) sat ( b i ase ) rms i ( base )r b ( ase ) volt- sec ( base )e peak ( base ) inductance resistance number h (a) (a) ohms vs j ( b ase ) h c/watt ( nom ) (2) ( typ ) (3)(4) ( typ ) (3)(5) ( max ) (6) ( max ) (7) ( typ ) (8) ( typ ) ( typ ) (9) vph1-1400-r (10) 201.6 +/-30% 0.04 0.55 0.344 32.9 0.11 0.212 60.7 VP1-1400-R (10) 89.6 +/-30% 0.06 0.85 0.145 21.8 0.11 0.096 60.7 vph1-0190-r 27.4 +/-20% 0.29 0.55 0.344 32.9 0.77 0.212 60.7 vp1-0190-r 12.2 +/-20% 0.43 0.85 0.145 21.8 0.77 0.096 60.7 vph1-0102-r 14.7 +/-20% 0.53 0.55 0.344 32.9 1.45 0.212 60.7 vp1-0102-r 6.5 +/-20% 0.80 0.85 0.145 21.8 1.45 0.096 60.7 vph1-0076-r 10.9 +/-20% 0.72 0.55 0.344 32.9 1.92 0.212 60.7 vp1-0076-r 4.9 +/-20% 1.06 0.85 0.145 21.8 1.92 0.096 60.7 vph1-0059-r 8.5 +/-20% 0.92 0.55 0.344 32.9 2.48 0.212 60.7 vp1-0059-r 3.8 +/-20% 1.37 0.85 0.145 21.8 2.48 0.096 60.7 vph2-1600-r (10) 160 +/-30% 0.07 0.95 0.159 48.3 0.29 0.165 44.0 vp2-1600-r (10) 78.4 +/-30% 0.10 1.26 0.090 33.7 0.29 0.083 44.0 vph2-0216-r 21.6 +/-20% 0.53 0.95 0.159 48.3 2.11 0.165 44.0 vp2-0216-r 10.6 +/-20% 0.76 1.26 0.090 33.7 2.11 0.083 44.0 vph2-0116-r 11.6 +/-20% 0.99 0.95 0.159 48.3 3.94 0.165 44.0 vp2-0116-r 5.7 +/-20% 1.41 1.26 0.090 33.7 3.94 0.083 44.0 vph2-0083-r 8.3 +/-20% 1.39 0.95 0.159 48.3 5.47 0.165 44.0 vp2-0083-r 4.1 +/-20% 1.95 1.26 0.090 33.7 5.47 0.083 44.0 vph2-0066-r 6.6 +/-20% 1.74 0.95 0.159 48.3 7.01 0.165 44.0 vp2-0066-r 3.2 +/-20% 2.50 1.26 0.090 33.7 7.01 0.083 44.0 vph3-0780-r (10) 132 +/-30% 0.07 0.97 0.14 39.8 0.24 0.125 43.4 vp3-0780-r (10) 63.2 +/-30% 0.10 1.47 0.061 27.7 0.24 0.058 43.4 vph3-0138-r 23.3 +/-20% 0.41 0.97 0.14 39.8 1.36 0.125 43.4 vp3-0138-r 11.2 +/-20% 0.59 1.47 0.061 27.7 1.36 0.058 43.4 vph3-0084-r 14.2 +/-20% 0.67 0.97 0.14 39.8 2.23 0.125 43.4 vp3-0084-r 6.8 +/-20% 0.97 1.47 0.061 27.7 2.23 0.058 43.4 vph3-0055-r 9.3 +/-20% 1.02 0.97 0.14 39.8 3.38 0.125 43.4 vp3-0055-r 4.5 +/-20% 1.46 1.47 0.061 27.7 3.38 0.058 43.4 vph3-0047-r 7.94 +/-20% 1.19 0.97 0.14 39.8 4.00 0.125 43.4 vp3-0047-r 3.8 +/-20% 1.73 1.47 0.061 27.7 4.00 0.058 43.4 vph4-0860-r (10) 159.65 +/-30% 0.11 1.41 0.0828 64.6 0.57 0.156 39.4 vp4-0860-r (10) 87.0 +/-30% 0.15 1.70 0.057 44.7 0.57 0.075 39.4 vph4-0140-r 23.7 +/-20% 0.65 1.41 0.0828 64.6 3.54 0.156 39.4 vp4-0140-r 11.3 +/-20% 0.95 1.70 0.057 44.7 3.54 0.075 39.4 vph4-0075-r 12.7 +/-20% 1.21 1.41 0.0828 64.6 6.55 0.156 39.4 vp4-0075-r 6.1 +/-20% 1.75 1.70 0.057 44.7 6.55 0.075 39.4 vph4-0060-r 10.1 +/-20% 1.52 1.41 0.0828 64.6 8.16 0.156 39.4 vp4-0060-r 4.9 +/-20% 2.18 1.70 0.057 44.7 8.16 0.075 39.4 vph4-0047-r 7.94 +/-20% 1.94 1.41 0.0828 64.6 10.52 0.156 39.4 vp4-0047-r 3.8 +/-20% 2.81 1.70 0.057 44.7 10.52 0.075 39.4 vph5-1200-r (10) 173 +/-30% 0.14 1.70 0.0711 98.4 1.11 0.235 30.3 vp5-1200-r (10) 76.8 +/-30% 0.20 2.08 0.047 65.6 1.11 0.105 30.3 vph5-0155-r 22.3 +/-20% 1.05 1.70 0.0711 98.4 8.83 0.235 30.3 vp5-0155-r 9.9 +/-20% 1.60 2.08 0.047 65.6 8.83 0.105 30.3 vph5-0083-r 12 +/-20% 1.96 1.70 0.0711 98.4 16.07 0.235 30.3 vp5-0083-r 5.3 +/-20% 2.95 2.08 0.047 65.6 16.07 0.105 30.3 vph5-0067-r 9.65 +/-20% 2.43 1.70 0.0711 98.4 19.83 0.235 30.3 vp5-0067-r 4.3 +/-20% 3.63 2.08 0.047 65.6 19.83 0.105 30.3 vph5-0053-r 7.63 +/-20% 3.07 1.70 0.0711 98.4 25.10 0.235 30.3 vp5-0053-r 3.4 +/-20% 4.59 2.08 0.047 65.6 25.10 0.105 30.3 www.eaton.com/electronics
3 vp versa-pac? inductors and transformers (surface mount) technical data 4301 effective august 2017 (1) the first three or four digits in the part number signify the size of the package. the next four digits specify the a l , or nanohenries per turn squared. -r indicates rohs compliant. (2) l base = nominal inductance of a single winding. (3) i base is the lessor of i sat(base) and i rms(base) . (4) peak current that will result in 30% saturation of the core. this current value assumes that equal current flows in all six windings. for applications in which all windings are not simultaneously driven (i.e. flyback, sepic, cuk, etc.), the saturation current per winding may be calculated as follows: i sa t = 6 x i sat(base) number of windings driven (5) rms current that results in a surface temperature of approximately 40 above ambient. the 40 rise occurs when the specified current flows through each of the six windings. (6) maximum dc resistance of each winding. (7) for multiple windings in series, the volt-?econd total (?s) capability varies as the number of windings in series (s): volt-?ec total = s x volt-?ec (base) for multiple windings in parallel, the volt- second total (?s) capability is as shown in the table above. (8) maxim um energy capability of each winding. this is based on 30% saturation of the core: energy series = s 2 x 1 x 0.7l base x i 2 sat(base) 2 energy parallel = p 2 x 1 x 0.7l base x i 2 s at(base) for multiple windings, the energy capability varies as the square of the number of windings. for example, six windings (either parallel or series) can store 36 times more energy than one winding. (9) thermal resistance is the approximate surface temperature rise per watt of heat loss under still-air conditions. heat loss is a combination of core loss and wire loss. the number assumes the underlying pcb copper area equals 150% of the component area. (10) these devices are designed for feed-forward applications, where load current dominates magnitizing current. 2 versa-pac temperature rise depends on total power losses and siz e . an y other pcm configur ations other than those suggested could run hotter than acceptable. certain topologies or applications must be analyzed for needed requirements and matched with the best versa-p ac size and configuration. proper consideration must be used with all parameters, especially those associated with current rating, energy storage, or maximum volt-seconds. versa-pac should not be used in off-line or safety related applications. the breakdown voltage from one winding to any other winding is 500 v ac maximum. product specifications- notes dimensions- mm vp1 and vph1 top view white dot pin #1 d (12 plcs) logo (optional) b c a 12 7 6 1 front view i (12 plcs) h g (2 plcs) wwllyy r e f vph _ - _ _ _ _ recommended pcb layout j n m component side 1 12 6 7 l (12plcs) k (12plcs) 0 (10plcs) p (10plcs) 4 1 5 2 6 8 12 7 11 10 9 3 1:1:1:1:1:1 aaab efgh i jklmnop mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm max ref max ref ref max ref ref ref ref ref max vp1 and vph1 12.9 9.2 13.0 0.7 5.9 6.2 1.5 0.1 0.25 11.5 1.5 2.25 9.7 14.2 2.0 0.5 notes: 1) tolerances a - i are 0.25 mm unless specified otherwise. 2) tolerances j - p are +/- 0.1 mm unless specified otherwise. 3) marking: a) dot for pin #1 identification b) vp ( h ) x-xxx (product code, size, 4 digit part number per family table.) c) versa pac logo (optional) d) wwllyy = (date code) r = (revision level) 4) all soldering surfaces must be coplanar within 0.102 mm. 5) packaged in tape and reel 6 00 parts per reel www.eaton.com/electronics
4 dimensions- mm technical data 4301 effective august 2017 vp versa-pac? inductors and transformers (surface mount) vp2 and vph2 top view white dot pin #1 d (12 plcs) logo (optional) b c a 12 7 6 1 front view i (12 plcs) h g (2 plcs) wwllyy r e f vph _ - _ _ _ _ recommended pcb layout j n m component side 1 12 6 7 l (12plcs) k (12plcs) 0 (10plcs) p (10plcs) 4 1 5 2 6 8 12 7 11 10 9 3 1:1:1:1:1:1 a b c d e f g h ijklmnop mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm max ref max ref ref max ref ref ref ref ref max vp2 and vph2 16.3 12.0 16.8 0.7 6.7 7.8 2.0 0.1 0.30 14.25 1.75 2.5 13.0 18.0 2.5 0.75 vp3 and vph3 a b d c efgh i jklmno mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm max ref max ref max ref ref ref ref ref max vp3 and vph3 17.1 16.0 22.3 0.7 8.4 3.0 0.1 0.4 14.49 1.79 3.43 16.88 23.74 2.54 0.75 top view d (12 plcs) 1 6 12 7 logo (optional) vph _ - ____ b c a white dot pin #1 front view h (12 plcs) g (12 plcs) f (2 plcs) e 1 12 2 11 3 1:1:1:1:1:1 4 9 5 8 6 j (12plcs) component side k (12plcs) o (10plcs) n (10plcs) m l 1 12 6 7 i www.eaton.com/electronics notes: 1) tolerances a - i are 0.25 mm unless specified otherwise. 2) tolerances j - p are +/- 0.1 mm unless specified otherwise. 3) marking: a) dot for pin #1 identification b) vp ( h ) x-xxx (product code, size, 4 digit part number per family table.) c) versa pac logo (optional) d) wwllyy = (date code) r = (revision level) 4) all soldering surfaces must be coplanar within 0.102 mm. 5) packaged in tape and reel 3 00 parts per reel 10 7 notes: 1) tolerances a - i are 0.25 mm unless specified otherwise. 2) tolerances j - p are +/- 0.1 mm unless specified otherwise. 3) marking: a) dot for pin #1 identification b) vp ( h ) x-xxx (product code, size, 4 digit part number per family table.) c) versa pac logo (optional) d) wwllyy = (date code) r = (revision level) 4) all soldering surfaces must be coplanar within 0.102 mm. 5) packaged in tape and reel 2 00 parts per reel
5 dimensions- mm vp versa-pac? inductors and transformers (surface mount) technical data 4301 effective august 2017 vp4 and vph4 a c b d e f gh i j klmno mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm max ref max ref max ref ref ref ref ref max vp4 and vph4 18.0 18.0 24.6 0.7 10.0 3.3 0.1 0.4 14.25 1.75 3.43 19.14 26.0 2.5 0.75 top view d (12 plcs) 1 6 12 7 logo (optional) vph _ - ____ b c a white dot pin #1 front view h (12 plcs) g (12 plcs) f (2 plcs) e 1 12 2 11 3 10 1:1:1:1:1:1 4 9 5 8 6 7 j (12plcs) component side k (12plcs) o (10plcs) n (10plcs) m l 1 12 6 7 i vp5 and v p h 5 abcdefgh i jklmno mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm max ref max ref max ref ref ref ref ref max vp5 and vph5 21.0 21.0 28.5 0.7 10.8 2.95 0.1 0.4 17.25 2.25 3.15 22.7 29.0 3.0 0.75 top view d (12 plcs) 1 6 12 7 logo (optional) vph _ - ____ b c a white dot pin #1 front view h (12 plcs) g (12 plcs) f (2 plcs) e 1 12 2 11 3 10 1:1:1:1:1:1 4 9 5 8 6 7 j (12plcs) component side k (12plcs) o (10plcs) n (10plcs) m l 1 12 6 7 i notes: 1) tolerances a - i are 0.25 mm unless specified otherwise. 2) tolerances j - p are +/- 0.1 mm unless specified otherwise. 3) marking: a) dot for pin #1 identification b) vp ( h ) x-xxx (product code, size, 4 digit part number per family table.) c) versa pac logo (optional) d) wwllyy = (date code) r = (revision level) 4) all soldering surfaces must be coplanar within 0.102 mm. 5) bulk packaged for tape and reel add tr to part number: (i.e. vp4-0140tr-r) 140 parts per reel notes: 1) tolerances a - i are 0.25 mm unless specified otherwise. 2) tolerances j - p are +/- 0.1 mm unless specified otherwise. 3) marking: a) dot for pin #1 identification b) vp ( h ) x-xxx (product code, size, 4 digit part number per family table.) c) versa pac logo (optional) d) wwllyy = (date code) r = (revision level) 4) all soldering surfaces must be coplanar within 0.102 mm. 5) bulk packaged for tape and reel add tr to part number: (i.e. vp5-01 55 tr-r) 1 15 parts per reel www.eaton.com/electronics
6 technical data 4301 effective august 2017 how to use multiple windings vp versa-pac? inductors and transformers (surface mount) l total = l base x s 2 = 10 ? x 2 2 = 40 ? where: l base = inductance of a single winding p = number of windings in parallel (use 1 with all windings in series) s = number of windings in series i base = maximum current rating of one winding i max = i base x p = 1 amp x 1 = 1 amp l total = l base x s 2 = 10 ? x 1 2 = 10 ? i max = i base x p = 1 amp x 2 = 2 amps 10 h 1 amp 10 h 1 amp 10 h 1 amp series connected (2 windings) parallel connected (2 windings) 10 h 1 amp windings on the same magnetic core behave differently. two windings in series result in four times the inductance of a single winding. this is because the inductance varies proportionately to the square of the turns. paralleled versa-pac windings result in no change to the net inductance because the total number of turns remains unchanged; only the effective wire size becomes larger. two parallel windings result in approximately twice the current carrying capability of a single winding. the net inductance of a given pcm configuration is based on the number of windings in series squared multiplied by the inductance of a single winding (l base ). the current rating of a pcm configuration is derived by multiplying the maximum current rating of one winding (i base ) by the number of windings in parallel. examples of simple two-winding devices are shown below: discrete inductors combine like resistors, when connected in series or parallel. for example, inductors in series add and i n d uctors in parallel reduce in a way similar to ohm law. l series = l1 + l2 + l3...ln l parallel = 1/ [ 1/l1 + 1/ l2 + 1/ l3....1/ln ] www.eaton.com/electronics
7 vp versa-pac? inductors and transformers (surface mount) how to pin-configure versa-pac? technical data 4301 effective august 2017 1 12 2 11 3 10 4 1 11 2 6 component view 7 7 l total = 36 x l base = 36 times the base
inductance from data table. 9 5 8 6 7 pin configurations
(2,12)(3,11)(4,10)(5,9)(6,8) each v e r s a- p ac c a n b e c onfigured in a variety of ways by simply connecting pins together on t he printed c i rcuit b o a rd ( p c b ) . as s h ow n b e low, the connections on the pcb are equal t o t h e p in configuration statement shown at the bottom of the s c h e m a t i c s ymbo l. c o n necti n g a numb e r o f windings in parallel will increase the current carry i n g capab i l it y, while co n n e c t i ng i n s e r i e s wi ll multiply the inductance . each versa-pac p a rt can b e configured in at least 6 combinations for inductor use or c o n f i g u r e d i n at le a s t 1 5 turns rat i o s f o r tr a n s f o rm e r applic a t io n s . the ve r sa-pac a l l o w s f o r at least 5 0 0 magnetic c o n f i g u r a t i o n s . t h e p cm configu rations can either be created by the designer or simply chosen from the existin g pcm d i a g r a m s . t h e f ol l o wi ng induc t o r e x a mple s h o w s 6 w indings in series, which result in a n inducta n c e of 36 t i mes t h e base i n d u c t a n c e a nd 1 t i m e s t h e b a s e c u rrent. inductor example for sizes vp3, vp4 and vp5 t h e pcm configurations may be selected from the examples above or created by the designer. t he p r in te d circuit board l a y o ut in each example illustrates the connections to obtain the desired inductance or turns r atio. t he examples may be u s e d by the pcb designer to configure versa-pac as desired. t o a s s i s t the designer, v e r sa - pac ph as ing, coupling and thermal issues have been considered in each of the pcm c o n figur ations illustrated. additionally , the inductance and current ratings, as a function of the resp ec ti ve base values are s h o w n in ea c h pcm example. i t i s i m p or tant to carefully select the proper versa-pac par t i n order to minimize the component size without exceeding t h e rms current capability or saturating the core. t he product specification table indicates maximum ratings. each v e r s a-pa c m a y b e used i n at l ea st 15 transform er ap pl ic ation s. more t ha n 37 5 tra ns for m er combinations may be a c h i eved using the available versa-pac parts. transformer example for sizes vp3, vp4 and vp5 1 12 2 11 3 10 4 11 2 7 6 9 5 8 6 7 1 12 2 7 l primary = 1 x l base i pri = 1 x i base i sec = 1 x i base 1:5 pin configurations
(3,11)(4,10)(5,9)(6,8) www.eaton.com/electronics
8 vp versa-pac? inductors and transformers (surface mount) 5v to 3.3v buck converter with 5v output this circuit minimizes both board space and cost by eliminating a second regulator . versa-p ac s gap ser v es to prevent core saturation during the switch on-time and also stores energy for the +5v load which is delivered during the flybac k inter val. the +3.3v buck winding is configured by placing two windings in series while the +5v is generated by an additional flyback winding stacked on the 3.3v output. extra windings are paralleled with primary windings to handle more current. the turns ratio of 2:1 adds 1.67v to the +3.3v during the flyback interval to achieve +5v. +3.3v@
12.5a +v rtn versa-pac
vp5-0083 12 11 10 9 8 7 1 2 3 4 5 6 synchronous
controller
ic + v+ +5v@
1a +3.3v@
4.2a + rtn versa-pac
vp5-0083 level shift 12,11 1,2 7 6 10,9,8 3,4,5 synchronous
controller
ic + 3.3v buck converter this circuit utilizes the gap of the vp5-0083 to handle the 12.5 amp output current without satur ating. in each of the five versa- pac sizes, the gap is varied to achieve a selection of specific inductance and current values (see versa-p ac data t able). all six windings are connected in parallel to minimiz e ac/dc copper losses and to maximize heat dissipation. with versa- pa c, this circuit w or ks well at or above 300 khz. also, the closed flux-path efd geometr y enab les much lo w er r adiation characteristics than open-path bobbin core style components. lithium-ion battery to 3.3v sepic converter the voltage of a lithium-ion battery varies above and below +3.3v depending on the degree of charge. the sepic configuration takes advantage of versa-pac s multiple tightly coupled windings. this results in lower ripple current which lowers noise and core losses substantially. the circuit does not require a snubber to control the voltage pike associated with switch turn- off , and is quite efficient due to lo w er rms current in the windings . +3.3v@
6a versa-pac
vp5-0083 12 11 10 123 987 45 + + + 6 controller
ic
w/integral
switch
watts 100 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 200 300 400 500 vp 5 vp 4 vp 3 vp 2 vp 1 watts frequency, khz 100 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 200 300 400 500 vp 5 vp 4 vp 3 vp 2 bipolar (push-pull) power vs frequency frequency, khz unipolar (flyback) power vs frequency t echnical data 4301 effective august 2017 v er sa-pac ? pe rformance characteristics vp 1 ocl vs. isat 100.0% 90. 0% 80. 0% 70. 0% 60. 0% 50. 0% 40. 0% 30. 0% 20. 0% 10. 0% 0.0% 0.0% 2 0. 0% 40.0% 60.0% 80.0% 100.0% 120.0% 140.0% 160.0% 180.0% 200.0% % of isat % of ocl these curves represent typical power handling capability. indicated power levels may not be achievable with all configurations. i nductance characteristics www.eaton.com/electronics
life support policy: eaton does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an offcer of the company. life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in signifcant injur y to the user. eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribu tion of any products. eaton also reserves the right to change or update, without notice, any technical information contained in this bulletin. eaton electronics division 1000 eaton boulevard cleveland, oh 44122 united states www.eaton.com/electronics ? 2017 eaton all rights reserved printed in usa publication no. 4301 august 2017 eaton is a registered trademark. all other trademarks are property of their respective owners. solder reflow profile temperature t t p t s t c -5c time 25c to peak time 25c t smin t smax t l t p preheat a max. ramp up rate = 3c/s max. ramp down rate = 6c/s t t a ab b l l e e 1 1 - - s s t t a a n n d da a r r d d s s n np p b b s s o ol l d d e e r r ( ( t t c c ) ) volume volume package mm 3 mm 3 thickness <350 _ >350 <2.5mm 235 c 220c _ >2.5mm 220 c 220c t t a ab b l l e e 2 2 - - l l e e a ad d ( ( p p b b ) ) f fr r e e e e s s o ol l d de e r r ( ( t t c c ) ) volume volume volume package mm 3 mm 3 mm 3 thickness <350 35035350 - >2000 <1.6 mm 260c 260c 260c 1.6 ? 2.5mm 260c 250c 245c >2.5mm 250 c 245c 245c reference jdec j-std-020 standard snpb solder lead (pb) free solder profile feature preheat and soak? e t mperature min. (t smin ) 100c 150c ? t emperature m a x. (t smax ) 150c 200c ? tim e (t smin to t smax ) (t s ) 60-120 seconds 60-120 seconds 3c/ second m a x. 3c/ second m ax. 183c 217c 60-150 seconds 60-150 seconds t ab le 1 abl e 2 t 20 seconds** 30 seconds** 6c/ second m ax. 6c/ second m ax. av erage r amp up rate t smax to t p liquidous temperature (t l ) tim e a t liqui dous (t l ) peak package body temperature (t p )* tim e (t p )** within 5 c of the specified classification temperature (t c ) av erage r amp-down rate (t p to t smax ) tim e 25c to peak t emperature minutes max. 6 8 minutes max. * tol erance for peak profile t emperature (t p ) is defined as a supplier minimum and a user maximum. ** tol erance for time a t p eak profile t emperature (t p ) is defined as a supplier minimum and a user maximum. technical data 4301 effective august 2017 vp versa-pac? inductors and transformers (surface mount)
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