VPR221SZ Vishay, VPR221SZ Datasheet

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VPR221SZ

Manufacturer Part Number
VPR221SZ
Description
Ultra High Precision Z-foil Surface Mount Power Resistor In To-220 Configuration With Tcr Of ? 0.05 Ppm/?c, Pcr Of 4 Ppm/w And Load Life Stability Of ? 0.005 % 50 Ppm
Manufacturer
Vishay
Datasheet
www.vishay.com
1
VPR221SZ (Z-Foil)
Vishay Foil Resistors
Any value at any tolerance available within resistance range
INTRODUCTION
The Z-Foil Technology provides a significant reduction of the
resistive component’s sensitivity to ambient temperature
variations (TCR) and applied power changes (PCR).
Model VPR221SZ is a 4 lead kelvin connected surface
mount device which provides high rated power, excellent
load life stability, low Temperature Coefficient (TCR) and low
Power Coefficient (PCR) - all in one resistor. ± 0.05 ppm/°C
Absolute TCR removes error due to temperature gradients.
By taking advantage of the overall stability and reliability of
Vishay Bulk Metal
significantly reduce circuit errors and greatly improve overall
circuit performances.
Our Application Engineering Department is available to
advise and make recommendations. For non-standard
technical requirements and special applications, please
contact us.
Notes
1. MIL-Range (- 55 °C to + 125 °C, + 25 °C Ref.)
* Pb containing terminations are not RoHS compliant, exemptions may apply
RESISTANCE
TABLE 1 - TCR AND TOLERANCE
RANGE (Ω)
Contact Applications Engineering for other available values
0.5 to < 1
10 to 500
1 to < 10
PCR of 4 ppm/W and Load Life Stability of ± 0.005 % (50 ppm)
Ultra High Precision Z-Foil Surface Mount Power Resistor
in TO-220 Configuration with TCR of ± 0.05 ppm/°C,
RESISTANCE
TOLERANCE
TIGHTEST
± 0.05 %
± 0.02 %
± 0.01 %
®
Z-Foil resistors, designers can
± 0.2 ppm/°C ± 2.8 ppm/°C
± 0.2 ppm/°C ± 2.3 ppm/°C
± 0.2 ppm/°C ± 1.8 ppm/°C
TYPICAL TCR AND
MAX. SPREAD
For any questions, contact: foil@vishay.com
1)
FEATURES
• Tolerance: to ± 0.01 %
• Power Coefficient “ΔR due to self heating”:
• Rated Power: 8 W chassis mounted (MIL-PRF-39009)
• Load Life Stability: to ± 0.005 % at 25 °C for 2000 hours,
• Resistance Range: 0.5 Ω to 500 Ω
• Electrostatic Discharge (ESD) above 25 000 Volts
• Short Time Overload ≤ 0.001 % (10 ppm)
• Non Inductive, Non Capacitive Design
• Rise Time: 1 ns without ringing
• Current Noise < - 40 dB
• Thermal EMF: 0.05 µV/°C typical
• Voltage Coefficient < 0.1 ppm/V
• Non Inductive: < 0.08 µH
• Non Hot Spot Design
• Terminal Finishes available: Lead (Pb)-free
• Any value available within resistance range (e.g. 1K234)
• Prototype samples available from 48 hours. For more
• For better performances please contact us
APPLICATIONS
• Automatic Test Equipment (ATE)
• High Precision Instrumentation
• Electron Beam application
• Current Sensing applications
• Pulse applications
• Military
• Power amplifier
• Power supplies
FIGURE 1- POWER DERATING CURVE
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.) (see table 1)
4 ppm/W typical
at 1.5 W
information, please contact foil@vishay.com
100
75
50
25
0
- 75
- 55 °C
- 50
- 25
Ambient Temperature (°C)
0
25
Tin/Lead Alloy
I
I
50
1
Document Number: 63127
75
E
1
100
Revision: 11-Jun-07
125
R
V
150
E
2
RoHS*
COMPLIANT
Available
Pb-free
I
2
I

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VPR221SZ Summary of contents

Page 1

... The Z-Foil Technology provides a significant reduction of the resistive component’s sensitivity to ambient temperature variations (TCR) and applied power changes (PCR). Model VPR221SZ lead kelvin connected surface mount device which provides high rated power, excellent load life stability, low Temperature Coefficient (TCR) and low Power Coefficient (PCR) - all in one resistor. ± ...

Page 2

... Trimming Process - 200 Removes this Material from Shorting Strip Area - 300 Changing Current Path - 400 and Increasing Resistance - 500 FIGURE 5 - VPR221SZ DIMENSIONS in 0.078 ± 0.005 0.245 ± 0.010 (1.98 ± 0.13) (6.22 ± 0.25) 0.200 ± 0.030 (5.08 ± 0.76) 0.540 ± 0.040 0.110 (2.79) Ref (13.72 ± 1.02) 0.090 ± 0.010 (2.29 ± ...

Page 3

... VPR221SZ (Z-Foil) Ultra High Precision Z-Foil Surface Mount Power Resistor Vishay Foil Resistors in TO-220 Configuration with TCR of ± 0.05 ppm/°C, PCR of 4 ppm/W and Load Life Stability of ± 0.005 % (50 ppm) TABLE 2 - SPECIFICATIONS Power Rating °C Current Noise High Frequency Operation ...

Page 4

... VPR221SZ FOR EXAMPLE: ABOVE GLOBAL ORDER Y2123 420R220 TYPE: VPR221SZ VALUE: 420.22 Ω ABSOLUTE TOLERANCE: ± 0.01 % TERMINATION: Lead (Pb)-free PACKAGING: Bulk HISTORICAL PART NUMBER: VPR221SZ T 420R22 TCR0 (will continue to be used) VPR221SZ T MODEL TERMINATION T = Lead (Pb)-free none = Tin/Lead Note * For non-standard requests, please contact Application Engineering ...

Page 5

... Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’ ...

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