document number: 63146 for any ques tions, contact: foil@vishay.com www.vishay.com revision: 06-may-08 1 VHP203 (z-foil) vishay foil resistors hermetically sealed miniature ultra high precision z-foil technology resistors with tcr of 0.05 ppm/c , tolerance of 0.001 % and load life stability of 0.005 %, unaffected by humidity any value available within resistance range introduction the z-foil based oil filled, hermetically sealed VHP203 resistor represents an indust ry breakthrough. the hermetic sealing eliminates the ingress of moisture and oxygen, while the oil acts as a thermal conductor, thus eliminating long term degradation of elements of unsea led resistors, while at the same time allowing the device to accept short periods of overload without degradation. the VHP203 is also available with laboratory and metrology level precision and long term stability with additional inhouse oriented process such as: special tcr plotting, chip stabilitzation inhouse thermal shock and bake prior to sealing, combined thermal shock and power conditioning on finished product, thermal and power conditioning, clt. the z-foil technology provides a significant reduction of the resistive components sensitiv ity to ambient temperature variations (tcr) and applied power changes (pcr). when combined with the hermetic sealing and oil filling, the VHP203 resistor become the most precise and stable resistor available . the value of the hermetic enclosure over the molded part is in long term performance. with accuracy of 0.001 % (10 ppm) and a resistance range from 10 to 150 k and long term shelf life of less than 2 ppm, this device is virtually a secondary standard that can be carried in sets for daily or periodic calibration of factory measurement equipment. note 1. for lower tcr and for selected tcr tracking, please contact us features ? temperature coefficien t of resistance (tcr): 0.05 ppm/c (0 c to 60 c) ? power coefficient ? r due to self heating?: 5 ppm at rated power ? tolerance: to 0.001 % (10 ppm) ? load life stability: 0.002 % maximum r (60 c for 2000 h at 0.1 w per chip) ? electrostatic discharge (esd) > 25 000 v ? resistance range: 10 to 150 k (higher or lower values of resistance available) ? power rating: 0.3 w at + 25 c ? shelf life stability: 2 ppm for at least 10 years ? non inductive, non capacitive design ? non hot spot design ? rise time: 1.0 ns without ringing ? current noise: < - 40 db ? thermal emf: 0.05 v/c typical ? voltage coefficient: < 0.1 ppm/v ? non inductive: < 0.08 h ? terminal finishes available: lead (pb)-free tin/lead alloy ? impervious to harmful environments - oil filled ? for better performances, please contact us ? prototype samples available from 24 h. for more information, please contact foil@vishay.com applications ? metrology ? laboratory ? industrial ? measurement * pb containing terminations are not rohs compliant, exemptions may apply table 1 - tcr vs. resistance value resistance value ( ) typical tcr and max. spread (- 55 c to + 125 c, + 25 c ref.) (ppm/c) 1) 100 to < 150k 0.2 2 50 to < 100 0.2 3 10 to < 50 0.2 4 figure 1 - trimming to values (conceptual illustration) a v aila b le p b -free rohs* compliant m u t u al ind u ctance red u ction d u e to opposing c u rrent in adjacent lines c u rrent path before trimming note: foil sho w n in b lack, etched spaces in w hite interloop capacitance red u ction in series trimming process remo v es this material from shorting strip area changing c u rrent path and increasing resistance c u rrent path after trimming
VHP203 (z-foil) vishay foil resistors hermetically sealed miniature ultra high precision z-foil technology resistors with tcr of 0.05 ppm/c , tolerance of 0.001 % and load life stability of 0.005 %, unaffected by humidity www.vishay.com for any questions, contact: foil@vishay.com document number: 63146 2 revision: 06-may-08 note ? see next page for numbered footnotes note ? see next page for numbered footnotes table 2 - model selection model number resistance range ( ) maximum working voltage 1) power rating at + 25 c average weight (g) construction brief dimensions inches mm VHP203 VHP203j 10 to 66k 66k to 150k 300 0.3 w 0.2 w 1.4 oil-filled, tinned copper leads, nickel shell, kovar and glass header w: 0.185 0.020 l: 0.435 0.020 h: 0.375 0.020 ll: 1.000 0.125 ls: 0.150 0.010 2) st: 0.095 max. 4.70 0.51 11.05 0.51 10.92 0.51 25.4 3.18 3.81 0.25 2.41 max. table 3 - standard resistance tolerance tightest ( ) loosest (%) 1k to 150k 500r to 1k 50r to 500r 30r to 50r 20r to 30r 10r to 20r 0.001 0.0025 0.005 0.01 0.02 0.05 figure 2 - typical tcr curve z-foil + 500 + 200 + 100 0 - 100 - 200 - 300 - 500 - 55 - 25 + 25 + 60 + 75 + 100 + 125 ambient temperature (c) ? r r (ppm) 0 0.05 ppm/c - 0.1 ppm/c 0.1 ppm/c 0.14 ppm/c 0.2 ppm/c - 0.16 ppm/c - 400 + 300 + 400 figure 3 - power derating curve + 100 + 75 + 50 + 25 0 - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 percent of rated power - 55 c ambient temperature (c) figure 4 - standard imprinting and dimensions ls model nu m b er v ishay xxxx st h l date code w front view rear view lead material #22 a w g ro u nd solder coated copper resistance v al u e code tolerance serial n o. 100r01 0.01 % xxxx 06 w eek 07 year ll v hp203
document number: 63146 for any ques tions, contact: foil@vishay.com www.vishay.com revision: 06-may-08 3 VHP203 (z-foil) hermetically sealed miniature ultra high precision z-foil technology resistors with tcr of 0.05 ppm/c , tolerance of 0.001 % and load life stability of 0.005 %, unaffected by humidity vishay foil resistors notes 1. not to exceed power rating of resistor 2. 0.200" (5.08 mm) lead spacing available - specify VHP203j 3. inductance (l) due mainly to the leads 4. the resolution limit of existing test equipment (within me asurement capability of the equi pment, or ?essentially zero?) 5. v/c relates to emf due to lead temperature diffe rence and v/w due to power applied to the resistor 6. load life r max. can be reduced through in -house oriented processes table 3 - ?h? series specifications stability 6) load life at 2000 h 0.002 % maximum r at 0.1 w per chip and at + 60 c shelf life 2 ppm (0.0002 %) after at least 10 years current noise < 0.010 v (rms)/v of applied voltage (- 40 db) high frequency operation rise time 1.0 ns without ringing inductance (l) 3) 0.1 h maximum; 0.08 h typical capacitance (c) 1.0 pf maximum; 0.5 pf typical voltage coefficient < 0.1 ppm/v 4) thermal emf 5) 0.1 v/c maximum; 0.05 v/c typical; 1 v/w maximum hermeticity 10 -7 atmospheric cc/s maximum table 4 - environmental performance comparison mil-prf-55182 char j VHP203 maximum r VHP203 typical r test group i thermal shock, 5 x (- 55 c to + 125 c) 0.2 % 0.01 % (100 ppm) 0.002 % (20 ppm) short time overload, 6.25 x rated power, 5 s 0.2 % 0.01 % (100 ppm) 0.003 % (30 ppm) test group ii resistance temperature characteristics 25 ppm/c table 1 0.05 ppm/c characteristic low temperature storage (24 h at - 65 c) 0.15 % 0.01 % (100 ppm) 0.002 % (20 ppm) low temperature operation (45 min, rated power at - 65 c) 0.15 % 0.01 % (100 ppm) 0.002 % (20 ppm) terminal strength 0.2 % 0.01 % (100 ppm) 0.002 % (20 ppm) test group iii dwv 0.15 % 0.01 % (100 ppm) 0.002 % (20 ppm) resistance to solder heat, 20 s at + 260 c 0.1 % 0.01 % (100 ppm) 0.005 % (50 ppm) moisture resistance 0.4 % 0.005 % (50 ppm) 0.001 % (10 ppm) test group iv shock 0.2 % 0.01 % (100 ppm) 0.002 % (20 ppm) vibration 0.2 % 0.01 % (100 ppm) 0.002 % (20 ppm) test group v life test at 0.3 w at + 25 c 2000 h 0.5 % 0.008 % (80 ppm) 0.002 % (20 ppm) test group va life test at 0.1 w at + 60 c 0.5 % 0.008 % (80 ppm) 0.002 % (20 ppm) test group vi high temperature exposure (2000 h at + 125 c) 2.0 % 0.02 % (200 ppm) 0.005 % (50 ppm) test group vii voltage coefficient 5 ppm/v < 0.1 ppm/v < 0.1 ppm/v
VHP203 (z-foil) vishay foil resistors hermetically sealed miniature ultra high precision z-foil technology resistors with tcr of 0.05 ppm/c , tolerance of 0.001 % and load life stability of 0.005 %, unaffected by humidity www.vishay.com for any questions, contact: foil@vishay.com document number: 63146 4 revision: 06-may-08 note * application engineering release: for non-standar d requests, please contac t application engineering. table 5 - global part number information new global part number: y6072120k500v9l (preferred part number format) denotes precision value aer* yr = k = k 0 = standard product, tin/lead termination 1 = with plastic sleeve, tin/lead termination 9 = standard product, lead (pb)-free termination 19 = with plastic sleeve, lead (pb)-free termination other = custom product code resistance tolerance packaging 6072 = VHP203 6073 = VHP203j s = 0.001 % u = 0.002 % x = 0.0025 % v = 0.005 % t = 0.01 % q = 0.02 % a = 0.05 % b = 0.1 % c = 0.25 % d = 0.5 % f = 1.0 % l = bulk pack for example: above global order y6072 120k500 v 9 l: type: VHP203 value: 120.5 k absolute tolerance: 0.005 % termination: lead (pb)-free packaging: bulk pack historical part number: VHP203t 120k50 v b (will continue to be used) VHP203 t 120k50 v b model termination plastic sleeve ohmic value tolerance packaging VHP203 VHP203j t = lead (pb)-free none = tin/lead p = plastic sleeve none = standard 120k50 = 120.5 k s = 0.001 % u = 0.002 % x = 0.0025 % v = 0.005 % t = 0.01 % q = 0.02 % a = 0.05 % b = 0.1 % c = 0.25 % d = 0.5 % f = 1.0 % b = bulk pack 0721 0k5 2 y6 v9 0 l 0
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