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1
VPR220SZ (Z-Foil)
Vishay Foil Resistors
Model VPR220SZ, made from Vishay Bulk Metal
offers very low TCR, high stability, tight tolerance, low PCR
and fast response time in a small surface mount molded
resistor.
The Z-Foil technology provides a significant reduction of the
resistive components sensitivity to ambient temperature
variations and applied power changes. Designers now can
guarantee a high degree of stability and accuracy in fixed
resistor applications using solutions based on Vishay’s
revolutionary Z-Foil technology.
Our Application Engineering Department is available to
advise and make recommendations. For non-standard
technical requirements and special applications, please
contact us.
Weight = 1 g Maximum
Note
1. Maximum specifications.
* Pb containing terminations are not RoHS compliant, exemptions may apply
Any value at any tolerance available within resistance range
TABLE 1 - SPECIFICATIONS
Load Life Stability at 2000 h
Power Rating at + 25 °C
Current Noise
High Frequency Operation
Rise Time
Inductance
Capacitance (C)
Voltage Coefficient
Operating Temperature
Range
Maximum Working Voltage
Thermal EMF
TABLE 2 - VPR220SZ
RESISTANCE RANGE (Ω)
50 to 10K
25 to < 50
10 to < 25
5 to < 10
Ultra High Precision Z-Foil Surface Mount Power Resistors in
3)
(L)
5)
4)
TO-220 Configuration with TCR of ± 0.05 ppm/°C,
Tolerance to ± 0.01 % and Power Rating to 8 W
± 0.05 % max ΔR under full rated
power at + 25 °C
8 W or 3 A
1.5 Wor 3 A
Further derating not necessary.
< 0.010 µV (rms)/V of applied
voltage (- 40 dB)
1 ns
0.1 µH maximum: 0.03 µH typical
1.0 pF maximum: 0.5 pF typical
< 0.1 ppm/V
- 55 °C to + 150 °C
300 V. Not to exceed power rating.
0.15 µV/°C maximum (lead effect)
1)
1)
on heat sink
For any questions, contact: foil@vishay.com
in free air
TIGHTEST RESISTANCE TOLERANCE
®
2)
Z-Foil,
± 0.02 %
± 0.05 %
± 0.01 %
± 0.1 %
FEATURES
• Temperature Coefficient of Resistance (TCR):
• Tolerance: to ± 0.01 %
• Power Coefficient of Resistance (PCR) “ΔR
• Electrostatic Discharge (ESD) above 25 000 V
• Load Life Stability: ± 0.005 % (25 °C, 2000 hours at Rated
• Resistance Range: 5 Ω to 10 kΩ
• Power Rating: 8 W chassis mounted (per MIL-PRF-39009)
• Non Inductive, Non Capacitive Design
• Current Noise: < - 40 dB
• Voltage Coefficient: < 0.1 ppm/W
• Non Inductive: < 0.08 µH
• Non Hot Spot Design
• Thermal EMF: 0.05 µV/°C typical
• Terminal Finishes Available: Lead (Pb)-free
• For higher performances please contact us
Notes
1. Whichever is lower.
2. Heat sink chassis dimensions and requirements per
3. Inductance (L) due mainly to the leads.
4. The resolution limit of existing test equipment (within the
5. µV/°C relates to EMF due to lead temperature difference.
± 0.05 ppm/°C typical (0 °C to + 60 °C)
± 0.2 ppm/°C typical (- 55 °C to + 125 °C,
- 25 °C Ref.)
due to self heating”: 5 ppm at rated power
Power)
MIL-PRF-39009:
measurement capability of the equipment, or “essentially zero”).
DIMENSION
L
W
H
T
- 55 °C to + 125 °C, Ref. + 25 °C
INCHES
6.00
4.00
2.00
0.04
Tin/Lead Alloy
± 2.5 ppm/°C
TCR
Document Number: 63068
1)
Revision: 06-Aug-07
152.4
101.6
50.8
mm
1.0
RoHS*
COMPLIANT
Available
Pb-free