VPR220SZ Datasheet, PDF (1/4 Pages) Vishay Siliconix – Ultra High Precision Z-Foil Surface Mount Power Resistors in TO-220 Configuration with TCR of ± 0.05 ppm/°C,

VPR220SZ (Z-Foil)
Vishay Foil Resistors
Ultra High Precision Z-Foil Surface Mount Power Resistors in
TO-220 Configuration with TCR of ± 0.05 ppm/°C,
Tolerance to ± 0.01 % and Power Rating to 8 W
Any value at any tolerance available within resistance range
Model VPR220SZ, made from Vishay Bulk Metal^® Z-Foil,
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.
FEATURES
• Temperature Coefficient of Resistance (TCR):
± 0.05 ppm/°C typical (0 °C to + 60 °C)
± 0.2 ppm/°C typical (- 55 °C to + 125 °C,
- 25 °C Ref.)
• Tolerance: to ± 0.01 %
Pb-free
Available
RoHS*
COMPLIANT
• Power Coefficient of Resistance (PCR) “ΔR
due to self heating”: 5 ppm at rated power
• Electrostatic Discharge (ESD) above 25 000 V
• Load Life Stability: ± 0.005 % (25 °C, 2000 hours at Rated
Power)
• 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
Tin/Lead Alloy
• For higher performances please contact us
TABLE 1 - SPECIFICATIONS
Load Life Stability at 2000 h
Power Rating at + 25 °C
± 0.05 % max ΔR under full rated
power at + 25 °C
8 W or 3 A¹⁾ on heat sink²⁾
1.5 Wor 3 A¹⁾ in free air
Further derating not necessary.
Current Noise
< 0.010 µV (rms)/V of applied
voltage (- 40 dB)
High Frequency Operation
Rise Time
Inductance³⁾ (L)
Capacitance (C)
Voltage Coefficient⁴⁾
1 ns
0.1 µH maximum: 0.03 µH typical
1.0 pF maximum: 0.5 pF typical
< 0.1 ppm/V
Operating Temperature
Range
- 55 °C to + 150 °C
Maximum Working Voltage
Thermal EMF⁵⁾
300 V. Not to exceed power rating.
0.15 µV/°C maximum (lead effect)
Notes
1. Whichever is lower.
2. Heat sink chassis dimensions and requirements per
MIL-PRF-39009:
DIMENSION
L
W
H
T
INCHES
6.00
4.00
2.00
0.04
mm
152.4
101.6
50.8
1.0
3. Inductance (L) due mainly to the leads.
4. The resolution limit of existing test equipment (within the
measurement capability of the equipment, or “essentially zero”).
5. µV/°C relates to EMF due to lead temperature difference.
TABLE 2 - VPR220SZ
RESISTANCE RANGE (Ω)
TIGHTEST RESISTANCE TOLERANCE
50 to 10K
± 0.01 %
25 to < 50
± 0.02 %
10 to < 25
± 0.05 %
5 to < 10
± 0.1 %
Weight = 1 g Maximum
Note
1. Maximum specifications.
* Pb containing terminations are not RoHS compliant, exemptions may apply
www.vishay.com
1
For any questions, contact: [e-mail]
TCR¹⁾
- 55 °C to + 125 °C, Ref. + 25 °C
± 2.5 ppm/°C
Document Number: 63068
Revision: 06-Aug-07