VPR220, VPR22ꢂ
Vishay Foil Resistors
Bulk Metal® Foil Technology Precision Foil Power Resistors
in TO-220 Configuration with TCR of 2 ꢀꢀpm/C,
Tolerance of to 0ꢁ0ꢂ ꢃ and Power Rating to 8 W
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
• Load life stability: 0.005 % (25 °C, 2000 h at rated power)
• Resistance range: 0.5 Ω to 10 kΩ
Any value at any tolerance within resistance range
• 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
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.
• Terminal finishes available: lead (Pb)-free or tin/lead alloy
• Any value available within resistance range (e.g. 1K234)
• Prototype samples available from 48 h. For more
information, please contact foil@vishaypg.com
TABLE 1 - VPR220
RESISTANCE
TIGHTEST
TOLERANCE
TYPICAL
TCR (2)
MAXIMUM
TCR (2)
RANGE (Ω) (ꢂ)
•
For better performances, please see VPR220Z and
VPR221Z 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
•
Compliant to RoHS directive 2002/95/EC
R
I
I
Iꢂ
Eꢂ
E2
I2
weight = 1 g maximum
V
Notes
(1)
Lower or high values available upon request
- 55 °C to + 125 °C, + 25 °C ref.
(2)
FIGURE 1 - POWER DERATING CURVE
- 55 /C
+ ꢂ00
TABLE 2 - VPR221
RESISTANCE
TIGHTEST
TYPICAL
TCR (2)
MAXIMUM
TCR (2)
+ 75
+ 50
+ 25
0
RANGE (Ω) (ꢂ)
TOLERANCE
10 to < 500
1 to < 10
0.01 %
0.02 %
0.05 %
2 ppm/°C
2 ppm/°C
2 ppm/°C
5 ppm/°C
5 ppm/°C
5 ppm/°C
0.5 to < 1
weight = 1.2 g maximum
- 50
- 25
0
+ 25
+ 50
+ 75
+ ꢂ00
+ ꢂ25
+ ꢂ50
Notes
Apbient Tepꢀerature (/C)
(1)
Lower or high values available upon request
- 55 °C to + 125 °C, + 25 °C Ref.
(2)
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63012
Revision: 23-Mar-10
For any questions, contact: foil@vishaypg.com
www.foilresistors.com
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