Vishay Precision Group's Supplier Page

VCS1625Z Ultra High Precision Z-Foil
Surface Mount Current Sensing Chip Resistor

 
  • Overview
  • Features
  • Applications
  • Specifications
  • Buy Now

Overview



Z-Foil Surface Mount Current Sensing Chip ResistorVishay Precision Group's VCS1625Z Series is a surface mount chip resistor designed with 4 pads for Kelvin connection. Utilizing Vishay Precision Group's Bulk Metal® Z-Foil as the resistance element, it provides performance capabilities far greater than other resistor technologies can supply in a product of comparable size. 0.05 ppm/°C absolute TCR removes errors due to temperature gradients.

This small device dissipates heat almost entirely through the pads so surface mount users are encouraged to be generous with the board's pads and traces.

The Z-Foil technology provides a significant reduction of the resistive component's sensitivity to ambient temperature variations (TCR) and applied power changes (PCR). Designers can now guarantee a high degree of stability and accuracy in fixed-resistor applications using solutions based on Vishay Precision Group's revolutionary Z-Foil technology.

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.)
  • Resistance range: 0.3Ω to 10Ω (for higher or lower values please contact us)
  • Vishay Foil resistors are not restricted to standard values. We can supply specific "as required" values at no extra cost or delivery (e.g. 1.234Ω vs. 1Ω)
  • Tolerance: to ± 0.2%
  • Power coefficient "ΔR due to self heating": 5 ppm at rated power
  • Load life stability: 0.02% at 70°C, 2000 h at rated power
  • Electrostatic discharge (ESD) up to 25,000 V
  • Short time overload < 0.005%
  • Power rating: 0.5 W at +70°C
  • Non-inductive, non-capacitive design
  • Rise time: 1 ns effectively no ringing
  • Current rating: 5 A maximum
  • Current noise: < -40 dB
  • Voltage coefficient: < 0.1 ppm/V
  • Non-inductive: < 0.08 µH
  • Non-hot spot design
RoHS Compliant  Datasheet

Applications



  • Military
  • Medical
  • Automatic test equipment (ATE)
  • Airborne (in heads-up display systems)
  • High precision instrumentation
  • Electron beam recording equipment
  • Electron microscopes
  • Current sensing applications
  • Forced balance electronic scales
  • Applications that require superior frequency stability
Typical Application

Specifications



Performance Specifications
Test MIL-PRF-55342 ΔR Limits Typical ΔR Limits Maximum ΔR Limits*
Thermal shock 5 x (-65°C to +150°C) ±0.10% ±0.005% (50 ppm) ±0.01% (100 ppm)
Low temperature operation ±0.10% ±0.005% (50 ppm) ±0.01% (100 ppm)
Short time overload ±0.10% ±0.005% (50 ppm) ±0.02% (200 ppm)
High temperature exposure ±0.10% ±0.01% (100 ppm) ±0.02% (200 ppm)
Resistance to soldering heat ±0.2% ±0.01% (100 ppm) ±0.03% (300 ppm)
Moisture resistance ±0.2% ±0.01% (100 ppm) ±0.03% (300 ppm)
Load life 2000 h at 70°C:
rated power on ceramic PCB
±0.5% ±0.02% (200 ppm) ±0.04% (400 ppm)
* Measurement error 0.001R

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Ordering Information
Digi-Key P/N Manufacturer P/N Resistance Resistance
Tolerance
Typical TCR & Max Spread
(-55°C to +125°C, +25°C)
Power Rating at +70°C* Maximum Current*
Y1607-.5-ND Y16070R50000F9W 0.50Ω ±1.0% ±0.2 ±2.8 ppm/°C 0.5 W on
FR4 PCB
5 A
* Whichever is lower

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