VPG SMNZ (Z-Foil) Series Resistor Network
Vishay Precision Group SMNZ Z-Foil Resistors integrate four matched Z-Foil resistors into a single package for applications where resistor-to-resistor tracking is critical. The devices are designed for bridge circuits, instrumentation amplifiers, DAC ladders, and summing networks that require resistor ratios to remain stable through temperature variations, self-heating effects, and long-term operation. By placing all four resistors within a shared thermal environment, the SMNZ resistor networks help maintain precise ratio matching and tracking performance. In many precision measurement and signal-conditioning circuits, resistor tracking can have a greater impact on overall accuracy than absolute resistance value. Vishay Precision Group SMNZ Z-Foil Resistors provide network-level specifications for TCR tracking, ratio stability, power-coefficient tracking, and tolerance matching.
Features
- Four matched Z-Foil resistors integrated into a single package
- Supports improved bridge balance, CMRR, gain accuracy, and DAC performance
- Helps minimize drift caused by temperature changes, self-heating, and long-term operation
- Shared thermal environment promotes resistor-to-resistor tracking
- Network-level performance specified for tracking and ratio accuracy
- Designed for precision analog and measurement circuits
Applications
- Precision Wheatstone bridges
- Instrumentation amplifiers
- DAC ladders and summing networks
- Sensor signal conditioning
Specifications
- 0.01% tolerance match
- ≤0.0025% short-time overload
- 5ppm at rated power, power-coefficient tracking
- 0.1ppm/°C typical TCR tracking
- Power Rating at +70°C
- 0.4W entire package
- 0.1W each resistor
Dimensions
