VPR220_08 Datasheet, PDF (1/4 Pages) Vishay Siliconix – Foil Technology Precision Foil Power Resistors in TO-220 Configuration with TCR 2 ppm/°C,of Tolerance of to ± 0.01 % and Power Rating to 8 W

VPR220, VPR221
Vishay Foil Resistors
Bulk Metal^® Foil Technology Precision Foil Power Resistors
in TO-220 Configuration with TCR of ± 2 ppm/°C,
Tolerance of to ± 0.01 % and Power Rating to 8 W
Any value at any tolerance within resistance range
Models VPR220 AND VPR221, made from Vishay Bulk
Metal^® 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.
TABLE 1 - VPR220
RESISTANCE TIGHTEST TYPICAL
RANGE (Ω)¹⁾ TOLERANCE TCR²⁾
50 to 10K
25 to < 50
10 to < 25
5 to < 10
± 0.01 %
±2
± 0.02 %
±2
± 0.05 %
±2
± 0.1 %
±2
MAXIMUM
TCR²⁾
± 5 ppm/°C
± 7 ppm/°C
± 10 ppm/°C
± 13 ppm/°C
FEATURES
• Temperature Coefficient of Resistance (TCR):
± 2 ppm/°C typical (- 55 °C to + 125 °C,
+ 25 °C Ref.)
• Tolerance: to ± 0.01 % (see tables 1 and 2)
• Electrostatic Discharge (ESD): above 25 000 V
Pb-free
Available
RoHS*
COMPLIANT
• Load Life Stability: ± 0.005 % (25 °C, 2000 hours at Rated
Power)
• Resistance Range: 0.5 Ω to 10 kΩ
• Power Rating: 8 W chassis mounted (per MIL-PRF-39009)
• Non Inductive, Non Capacitive Design
• Rise Time: 1 ns without ringing
• Current Noise: < - 40 dB
• Voltage Coefficient: < 0.1 ppm/V
• Non Inductive: < 0.08 µH
• Non Hot Spot design
• Thermal EMF: 0.05 µV/°C typical
• Terminal Finishes Available: Lead (Pb)-free
Tin/Lead Alloy
• Any value available within resistance range (e.g. 1K234)
• Prototype samples available from 48 hours. For more
information, please contact [e-mail]
• For better performances, please see VPR220Z and VPR221Z
datasheets
I
R
I
weight = 1 g maximum
Notes
1. Lower or high values available upon request
2. - 55 °C to + 125 °C, + 25 °C Ref.
I₁
E₁
E₂
I₂
V
FIGURE 1 - POWER DERATING CURVE
TABLE 2 - VPR221
RESISTANCE TIGHTEST TYPICAL
RANGE (Ω)¹⁾ TOLERANCE TCR²⁾
10 to < 500
1 to < 10
0.5 to < 1
± 0.01 %
±2
± 0.02 %
±2
± 0.05 %
±2
weight = 1.2 g maximum
Notes
1. Lower or high values available upon request
2. - 55 °C to + 125 °C, + 25 °C Ref.
MAXIMUM
TCR²⁾
± 5 ppm/°C
± 5 ppm/°C
± 5 ppm/°C
+ 100 ^{- 55 °C}
+ 75
+ 50
+ 25
0
- 50
- 25
0
+ 25
+ 50
+ 75
Ambient Temperature (°C)
+ 100
+ 125
+ 150
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63012
Revision: 05-Jul-07
For any questions, contact: [e-mail]
www.vishay.com
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