Vishay Precision Group FRSH Series Ultra High Precision Foil Resistors are based on VFR's next-generation Z1-Foil technology. This provides an order of magnitude reduction in the bulk metal foil element's sensitivity to temperature compared with the classical foil—both external and internal—while providing long-term stability in high-temperature environments. FRSH devices offer TCR of ±1ppm/°C from −55°C to +125°C and ±2.5ppm/°C from −55°C to +200°C, +25°C ref. The resistors feature exceptional load-life stability to ±0.05% at +200°C for 2,000 hours at working power, long-term stability to ±0.05% at +225°C for 2,000 hours, and tight tolerances to ±0.02%. These foil resistors are offered in six chip sizes from 0603 to 2512. The FRSH series features a wide resistance range from 10Ω to 125kΩ, with any resistance value within this range available at any tolerance with no additional cost or lead-time effect.
Vishay Precision Group FRSH Series Ultra High Precision Foil Resistors
Features
- Current noise of 0.01 µVrms per volt of applied voltage (<−40dB)
- Extended pads for high power/high-temperature applications up to +225°C
- Load life stability of 0.05%
- Non-inductive (<0.08μH), non-capacitive design
- Offered in six chip sizes from 0603 to 2512
- Rise time of 1.0ns
- TCR to ±1ppm/°C from −55°C to +125°C
- TCR ±2.5 ppm/°C from −55°C to +200°C, +25°C ref
- Thermal stabilization time of <1s
- Voltage coefficient of <0.1ppm/V
- Wide resistance ranges from 10Ω to 125kΩ
Applications
- Current sensing
- Differential amplifiers