VPR220S, VPR221S
Vishay Foil Resistors
Bulk Metal® Foil Technology Precision Foil Power Surface Mount
Resistors in TO-220 Configuration with TCR of 2 ꢀꢀpm/C,
Tolerance of to 0ꢁ01 ꢂ and Power Rating to 8 W
FEATURES
•
Temperature coefficient of resistance (TCR):
2 ppm/°C typical (- 55 °C to + 125 °C,
+ 25 °C Ref.)
Pb-free
Available
RoHS*
• Tolerance: to 0.01 % (see tables 1 and 2)
• Electrostatic discharge (ESD): above 25 000 V
COMPLIANT
• Load life stability: 0.005 % (25 °C, 2000 h 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
Any value at any tolerance within resistance range
Models VPR220S AND VPR221S, made from Vishay Bulk
Metal® foil, offer low TCR, high stability, tight tolerance and
fast response time in a small, molded resistor. Model
VPR220S is a 2 lead device. Model VPR221S is a 4 lead
Kelvin connected device. The 4 leaded version is highly
recommended for precision applications requiring ohmic
values of 100R or less.
• 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 h. For more
information, please contact foil@vishay.com
TABLE 1 - VPR220S
RESISTANCE
TIGHTEST
TOLERANCE
TYPICAL
TCR2)
MAXIMUM
TCR2)
RANGE (Ω)1)
•
For better performances, please see VPR220SZ and
VPR221SZ datasheets
50 to 10K
25 to < 50
10 to < 25
5 to < 10
0.01 %
0.02 %
0.05 %
0.1 %
2
2
2
2
5 ppm/°C
7 ppm/°C
10 ppm/°C
13 ppm/°C
I
R
V
I
I1
E1
E2
I2
weight = 1 g maximum
Notes
1. Lower or high values available upon request
2. - 55 °C to + 125 °C, + 25 °C ref.
FIGURE 1 - POWER DERATING CURVE
- 55 /C
+ 100
TABLE 2 - VPR221S
RESISTANCE
TIGHTEST
TYPICAL
TCR2)
MAXIMUM
TCR2)
+ 75
+ 50
+ 25
0
RANGE (Ω)1)
TOLERANCE
2
2
2
10 to < 500
1 to < 10
0.01 %
0.02 %
0.05 %
5 ppm/°C
5 ppm/°C
5 ppm/°C
0.5 to < 1
weight = 1.2 g maximum
- 50
- 25
0
+ 25
+ 50
+ 75
+ 100
+ 125
+ 150
Apbient Tepꢀerature (/C)
Notes
1. Lower or high values available upon request
2. - 55 °C to + 125 °C, + 25 °C ref.
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63050
Revision: 29-Feb-08
For any questions, contact: foil@vishay.com
www.vishay.com
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