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| PRECISION BULK METAL (R) FOIL TECHNOLOGY VISHAY MODELS VPR220 AND VPR221 Precision Foil Power Resistors in TO 220 Configuration Models VPR220 AND VPR221, made from Vishay Bulk Metal(R) foil, offer low TCR, high stability, tight tolerance and fast response time in a small, molded resistor. Model VPR220 is a 2 lead device. Model VPR221 is a 4 lead Kelvin connected device. The 4 leaded version is highly recommended for precision applications requiring ohmic values of 100R or less. THROUGH HOLE FEATURES * Power: 8 watts chassis mounted (per MIL-R-39009) * Load Life Stability: 0.05% maximum R at rated power and temperature for 2,000 hours * Temperature Coefficient of Resistance: to 5 ppm/C * Resistance Range: 0.5 to 10K * Tolerance: To 0.01% * Low Thermal EMF: 0.15 V/C maximum (lead effect) * Non-Inductive Construction * Heat sink is Isolated FIGURE 1 - VPR220 DIMENSIONS 0.400 0.010 (10.16 0.25) 0.245 0.010 (6.22 0.25) VISHAY VPR220 1K0 1% 9801 FIGURE 2 - VPR221 DIMENSIONS 0.050 0.005 (1.27 0.13) 0.615 Max (15.62) 0.200 0.030 (5.08 0.76) 0.400 0.010 (10.16 0.25) 0.245 0.010 (6.22 0.25) VISHAY VPR221 1K0 1% 9801 0.150 0.008 (3.81 0.2) 0.115 0.005 (2.92 0.13) 0.141 0.005 Dia (3.58 0.13) 0.050 0.005 (1.27 0.13) 0.030 0.002 (0.76 0.05) 0.150 0.008 (3.81 0.2) 0.115 0.005 (2.92 0.13) 0.141 0.005 Dia (3.58 0.13) 0.050 0.005 (1.27 0.13) 0.030 0.002 (0.76 0.05) 0.050 0.005 (1.27 0.13) 0.615 Max (15.62) 0.200 0.030 (5.08 0.76) 0.540 0.040 (13.72 1.02) 0.015 0.002 (0.38 0.05) 0.540 0.040 (13.72 1.02) I1 E1 E2 I2 0.100 0.005 (2.54 0.13) 0.015 0.002 (0.38 0.05) 0.200 0.005 (5.08 0.13) 0.078 0.005 (1.98 0.13) 0.078 0.005 (1.98 0.13) Resistance Range () 50 to 10K 25 to <50 10 to <25 5 to <10 Tightest Resistance Tolerance 0.01% 0.02% 0.05% 0.1% TCR* 5 ppm/C 7 ppm/C 10 ppm/C 13 ppm/C Resistance Range () 10 to 500 1 to <10 0.5 to <1 Weight = 1.2 gms Max. Tightest Resistance Tolerance 0.01% 0.02% 0.05% TCR* 5 ppm/C 5 ppm/C 5 ppm/C Weight = 1 gm Max. * Maximum specifications. Lower values available but not recommended due to high TCR. * Maximum specifications. Higher values available. 0.1 Ohms Available soon. VISHAY FOIL RESISTORS, 63 Lincoln Highway, P.O. Box 4004, Malvern, PA 19355-0988 * Phone (610) 644-1300 App. Eng. Phone (610) 251-5289 * App. Eng. Fax (610) 640-4487 * Sales Phone (610) 251-5842 * Sales Fax (610) 640-9081 33 PRECISION BULK METAL (R) FOIL TECHNOLOGY VISHAY MODELS VPR220 AND VPR221 Precision Foil Power Resistors in TO 220 Configuration NOTES: 1. Maximum is 1.0% A.Q.L. standard for all specifications except TCR. Typical is a designers reference which represents that 85% of the units supplied, over a long period of time, will be at least the figure shown or better. 2. Whichever is lower. 3. Heat sink chassis dimensions and requirements per MIL-R-39009/1B: Dimension L W H T Inches 6.00 4.00 2.00 0.04 mm 152.4 101.6 50.8 1.0 TABLE 1 - SPECIFICATIONS THROUGH HOLE Load Life Stability at 2,000 hrs Shelf Life Stability Power Rating @ +25C 0.05% max R under full rated power @ +25C 0.0025% R/yr 8 watts or 3 amps2 on heat sink3 1.5 watts or 3 amps2 in free air Further derating not necesary. <0.010 V (rms)/volt of applied voltage (-40 dB) 0.2 ns @ 1 0.1 H maximum: 0.03 H typical1 1.0 pF maximum: 0.5 pF typical1 <0.1 ppm/V -55C to +150C 300 V. Not to exceed power rating. 0.15 V/C maximum (lead effect) Current Noise High Frequency Operation Rise/Decay Time Inductance4 (L) Capacitance (C) Voltage Coefficient5 Operating Temperature Range Maximum Working Voltage Thermal EMF 6 4. Inductance (L) due mainly to the leads. 5. The resolution limit of existing test equipment (within the measurement capability of the equipment, "essentially zero"). 6. V/C relates to EMF due to lead temperature difference. FIGURE 3 - VPR221S DIMENSIONS 0.115 0.005 (2.92 0.13) 0.050 0.005 (1.27 0.13) 0.141 0.005 Dia (3.58 0.13) 0.030 0.002 (0.76 0.05) FIGURE 4 - POWER DERATING CURVE +100 Percent of Rated Power +75 0.400 0.010 (10.16 0.25) Solder Coated Copper +50 +25 0.615 Max (15.62) 0.540 0.040 (13.72 1.02) 0.200 (5.08) Ref 0 +25 +50 +75 +100 +125 +150 Ambient Temperature (C) 0.365 (9.271) Ref 0.015 0.002 (0.381 0.05) 0.078 0.005 (1.98 0.13) Before Forming 0.050 0.005 (1.27 0.13) 0.150 0.008 (3.81 0.2) HOW TO ORDER VPR220 AND VPR221 PARTS: Specify Vishay VPR220 or VPR221 resistors as follows: Example: VPR221 Model No. 5R0000 Resistance Value 1.0% Tolerance 0.695 0.010 (17.65 0.25) 0.110 (2.794) Ref 0.090 (2.286) Ref 0.090 0.010 (2.286 0.25) Heat Sink Flush with Heat Sink Within 0.002 (0.051) Specify Vishay VPR220S or VPR221S for surface mount resistors as follows: Example: VPR221S Model No. 5R0000 Resistance Value 1.0% Tolerance After Forming VPR220S dimensions similar. Resistance value, in ohms, is expressed by a series of 6 characters, 5 of which represent significant digits while the 6th is a dual purpose letter that designates both the multiplier and the location of the comma or decimal. Resistance Range 0.5 to < 1K 1K to 10K Letter Designator R K Multiplier Factor x1 x103 Example 100R01 = 100.01 5K2310 = 5,231 34 VISHAY FOIL RESISTORS, 63 Lincoln Highway, P.O. Box 4004, Malvern, PA 19355-0988 * Phone (610) 644-1300 App. Eng. Phone (610) 251-5289 * App. Eng. Fax (610) 640-4487 * Sales Phone (610) 251-5842 * Sales Fax (610) 640-9081 |
Price & Availability of VPR2205R000010
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