t4 - lds -0143, rev . 2 (12 0861 ) ?201 2 microsemi corporation page 1 of 7 1n38 89 ? 1n38 9 1, 1n3893 available on commercial versions fast recovery rectifiers qualified per mil - prf - 19500/304 * qualified levels * : jan, jantx, and jantxv description this 1n38 8 9 ? 1n38 9 1 and 1n389 3 family of rectifier device s are suitable for applications in dc power supplies, inverters, converters, choppers and ultrasonic systems as well as other applications. it can also be used as a free - wheeling diode . they are military qualified up to a jantx v level on select part numbers and they are available in both standard and reverse polarities. microsemi also offers numerous other products to meet higher and lower power voltage regulation applications. do - 203aa ( do - 4 ) package important: for the latest information, visit our website http://www.microsemi.com . features ? very l ow f orward v oltage. ? f ast r ecovery t ime. ? low t hermal r esistance. ? both p olarities a vailable. ? jan, jantx, and jantxv qualification s also available per mil - prf -19500/ 304 . * (e xcludes part number 1n3889 . ) ? rohs compliant devices available by adding ?e3? suffix. applications / benefits ? available in 12 or 20 amp current rating s . ? short reverse recovery time. ? high s urge c apability . ? hermet ically s ealed . maximum ratings @ t c = 25 oc unless otherwise noted msc ? law rence 6 lake street, lawrence, ma 01841 tel: 1 -800- 446- 1158 (978) 620 - 2600 fax: (978) 689 - 0803 msc ? ireland gort road business park, ennis, co. clare, ireland tel: +353 (0) 65 6840044 fax: +353 (0) 65 6822298 website: www.microsemi.com parameters/test conditions symbol value unit junction and storage temperature t j & t stg - 65 to +175 o c thermal resistance junction -to - case non ?a? ?a? r ? jc 2.0 1.5 o c /w reverse voltage 1n3890 a/r/ar 1N3891 a/r/ar 1n3893 a/r/ar v r 100 200 400 v working peak reverse voltage 1n38 8 9 a/ r /ar 1n38 9 0 a/r/ar 1n38 9 1 a/r/ar 1n38 9 3 a/r/ar v rwm 50 100 200 400 v (pk) repetitive peak reverse voltage 1n38 8 9 a/r /ar 1n38 9 0 a/r/ar 1n38 9 1 a/r/ar 1n38 9 3 a/r/ar v rrm 50 100 200 400 v average f orward c urrent, 180 degrees conduction angle, 60 hz, half sine wave non ?a? @ t c = 100 oc ?a? i o 12 20 a maximum non - repetitive sinusoidal surge current @ t c = 100 oc (8.3 ms, half sine) non ?a? ?a? i fsm 175 250 a (pk) notes: 1. derate linearly 2 % of i o /oc for t c > 100 oc , see figure 5 .
t4 - lds -0143, rev . 2 (12 0861 ) ?201 2 microsemi corporation page 2 of 7 1n38 89 ? 1n38 9 1, 1n3893 mechanical and packaging ? case: hermetically s ealed m etal an d g lass c ase b ody w ith 10 -32 unf3a t hreaded s tud . ? terminals: tin -l ead p lated or rohs compliant matte -t in plating on n i ckel . solder dipped eyelet. ? m arking : manufacturer's id, part number, date code, polarity symbol. ? weight: 5 grams (approximate). ? maximu m stud torque: 10- 15 inch pounds. ? see package dimensions on last page. part nomenclature applicable to 1n3889 only: 1n38 8 9 a r (e3) jedec registered n umber (s ee e lec trical characteristic s t able ) current rating a = 20 amps blank = 12 amps rohs compliance e3 = rohs c ompliant blank = non - rohs c ompliant polarity r = anode to stud blank = cathode to stud applicable to 1n3890, 1N3891 and 1n3893 only: jan 1n3 8 90 a r (e3) reliability level jan = jan level jantx = jantx level jantxv = jantxv level blank = commercial jedec registered number (s ee electrical characteristics t able ) current rating a = 20 amps blank = 12 amps rohs compliance e3 = rohs c ompliant (on commercial grade only) blank = non - rohs c ompliant polarity r = anode to stud blank = cathode to stud
t4 - lds -0143, rev . 2 (12 0861 ) ?201 2 microsemi corporation page 3 of 7 1n38 89 ? 1n38 9 1, 1n3893 symbols & definitions symbol definition c j junction capacitance: the junction capacitance in pf at a specified frequency . i f (av) average forward current: the average forward current dc value, no alternating component. i fsm maximum forward surge current: the forward current, surge peak or rated forward surge current. i r m maximum reverse curre nt: the maximum reverse (leakage) current that will flow at the specified voltage and temperature. t rr reverse recovery time: the time interval between the instant the current passes through zero when changing from the forward direction to the reverse d irection and a specified decay point after a peak reverse current occurs. v f m maximum forward voltage: the maximum forward voltage the device will exhibit at a specified current. v rrm repetitive peak reverse voltage: the peak reverse voltage includ ing all repetitive transient voltages but excluding all non- repetitive transient voltages. v rwm working peak reverse voltage: the maximum peak voltage that can be applied over the operating temperature range excluding all transient voltages (ref jesd282 - b). also sometimes known as piv. electrical characteristics @ t a = 25 oc unless otherwise noted type typical junction capacitance c j average forward current i f(av) maximum forward voltage v f m maximum reverse current i r m maximum reverse recovery time t rr t c = 100 oc t c = 25 o c t c = 25 o c t c = 15 0 o c 1n38 8 9(r) 115 pf (1) 12 a 1. 5 v @ i f m = 2 0 a (2) 1 0 a @ v rrm 2 ma @ v rrm 200 ns ( 3 ) notes: 1 . v r = 10 v, f = 1 mhz, t j = 25 oc. 2. i fm = 38 a, t j = 25 oc . pulse test: pulse widt h 300 sec, duty cycle 2%. 3. i f = 1 a, v r = 30 a, di/dt = 25 a/ s, t c = 55 oc . parameters / test conditions symbol min. max. unit forward voltage i fm = 38 a, t c = 25 c* v fm 1.5 v forward voltage i fm = 250 a, t c = 150 c** v fm 2.75 v rever se current i rm 10 a v rm = 100 v, t c = 25 c v rm = 200 v, t c = 25 c v rm = 400 v, t c = 25 c 1n3890 / a / r / ar 1N3891 / a / r / ar 1n3893 / a / r / ar reverse current i rm 2 ma v rm = 100 v, t c = 150 c v rm = 200 v, t c = 150 c v rm = 400 v, t c = 150 c 1n3890 / a / r / ar 1N3891 / a / r / ar 1n3893 / a / r / ar reverse recovery time v rm = 30 v, i f = 1a, t c = 55 c* 1n3890, 1N3891, 1n3893 1n3890a, 1N3891a,1n3893a / ar t rr 200 150 ns * pulse test: pulse width 300 sec, d uty cycle 2% . ** pulse test: pulse width 800 sec .
t4 - lds -0143, rev . 2 (12 0861 ) ?201 2 microsemi corporation page 4 of 7 1n38 89 ? 1n38 9 1, 1n3893 graphs instantaneous forward voltage ? volts figure 1 ? typical forward characteristics reverse voltage ? volts figure 2 ? typical reverse characteristics instantaneous forward current - amperes typical reverse current - ma
t4 - lds -0143, rev . 2 (12 0861 ) ?201 2 microsemi corporation page 5 of 7 1n38 89 ? 1n38 9 1, 1n3893 graphs (continued) reverse voltage ? volts figure 3 ? typical junction capacitance average forward current ? amperes figure 4 ? forward current derating junction capacitance - pf maximum allowable case temperature - oc
t4 - lds -0143, rev . 2 (12 0861 ) ?201 2 microsemi corporation page 6 of 7 1n38 89 ? 1n38 9 1, 1n3893 graphs (continued) m aximum case temperature - oc figure 5 ? maximum forward current vs. maximum case temperatu r e t i me (s) figure 6 ? thermal impedance for ?a? type devices m aximum forward current - a mps r ?jc ( oc /w)
t4 - lds -0143, rev . 2 (12 0861 ) ?201 2 microsemi corporation page 7 of 7 1n38 89 ? 1n38 9 1, 1n3893 package dimensions notes: 1. dimensions are in inches. 2. millimeters are given for general information only. 3. angular orientation of this terminal is undefined. square or radius on end of terminals is optional. 4. diameter variations within these limits are permitted. 5. the ansi thread reference is 0.190 - 32 unf - 2a. 6. max pitch diameter of plated threads s hall be basic pitch diameter 0.169 inch (4.29 mm) reference fed - std - h28 (screw thread standards for federal services.) 7. units must not be damaged by torque of 15 inch - pounds applied to 0.190 - 32 unf - 2b nut assembled on thread. 8. complete threads to e xtend to within 0.078 inch (1.98 mm) of the seating plane. 9. terminal - end shape is unrestricted. 10. reversed (anode to stud) units shall be marked with an ?r? following the last digit in the type number. 11. forward polarity (cathode to stud) marki ng is not shown. ltr d ime n si o n s notes i nc h m illime t e r s m i n m a x m i n m a x cd . 424 10. 77 ch . 405 10. 29 ch 1 . 020 . 065 0 . 51 1 . 65 9 g . 060 1 . 52 hf . 424 . 437 10. 77 11. 10 ht . 075 . 175 1 . 90 4 . 44 o ah . 800 20. 32 om . 163 . 189 4 . 14 4 . 80 4 sl . 422 . 453 10. 72 11. 50 sp 5 , 6 , 7 , 8 t . 060 1 . 52 td . 250 6 . 35
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