VCS232Z_08 Datasheet, PDF (1/4 Pages) Vishay Siliconix – Ultra High Precision Z-Foil Power Current Sensing Resistor with Absolute TCR of ± 0.05 ppm/°C,PCR of 5ppm at Rated Power and Tolerance of ±0.02%

VCS232Z (Z-Foil)
Vishay Foil Resistors
Ultra High Precision Z-Foil Power Current Sensing Resistor
with Absolute TCR of ± 0.05 ppm/°C, PCR of 5 ppm at
Rated Power and Tolerance of ± 0.02 %
FEATURES
Any value at any tolerance available within resistance range
INTRODUCTION
VCS232Z is the industry’s first device to provide high rated
power, excellent load life stability, and low TCR - all in one
resistor.
The Z-Foil Technology provides a significant reduction of the
resistive component’s sensitivity to ambient temperature
variations (TCR) and applied power changes (PCR).
The latest developments in Foil resistors technology have
reduced the temperature coefficient of Resistance (TCR):
± 0.05 ppm/°C Absolute TCR removes error due to
temperature gradients.
By taking advantage of the overall stability and reliability of
Vishay’s Bulk Metal^® Z-Foil resistors, designers can
significantly reduce circuit errors and greatly improve overall
circuit performances.
Model VCS232Z is a 4 lead kelvin connected device.
Our Application Engineering Department is available to
advise and make recommendations. For non-standard
• 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.)
T • Power Coefficient “ΔR due to self heating”:
4 ppm/W typical
Pb-free
Available
RoHS*
COMPLIANT
• Power Rating at + 25 °C: 2 Watts
C _{• Tolerance: to ± 0.02 %}
• Load Life Stability: to ± 0.005 %, 25 °C for 2000 hours at
U rated power
• Maximum Current: 3 Amps
• Resistance Range: 0.25 Ω to 500 Ω
D _{• Electrostatic Discharge (ESD) above 25 000 Volts}
• Short Time Overload ≤ 0.005 %
O ^{• Non Inductive, Non Capacitive Design}
• Rise Time: 1 ns without ringing
• Current Noise < - 40 dB
R _{• Thermal EMF: 0.05 µV/°C}
P^{• Voltage Coefficient < 0.1 ppm/V}
technical requirements and special applications, please
contact us.
TABLE 1 - TOLERANCE AND TCR
D RESISTANCE
RANGE
(Ω)
TIGHTEST
RESISTANCE
TOLERANCE
TYPICAL TCR AND
MAX. SPREAD
(ppm/°C)¹⁾
E 0.25 to < 10
± 0.05 %
± 0.2 ± 2.8
10 to 500
± 0.02 %
± 0.2 ± 1.8
Notes
V _{1. MIL-Range (- 55 °C to + 125 °C, + 25 °C Ref.)}
• Contact Applications Engineering for other available values
O _{FIGURE 1 - POWER DERATING CURVE}
R + 100
+ 75
P ^{+ 50}
+ 25
IM⁰
- 55 °C
+ 25 °C
- 50
0
+ 50
+ 100 + 150 + 200
Ambient Temperature (°C)
• Non Inductive: 0.08 µH
• Non Hot Spot Design
• Terminal Finishes available: Lead (Pb)-free
Tin/Lead Alloy
• 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
R
I
I
(Further Derating Not Necessary)
I₁
E₁
E₂
I₂
V
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63095
Revision: 16-Apr-07
For any questions, contact: [e-mail]
www.vishay.com
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