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Ohmite's P Series Epoxy molded Precision Wirewound Resistors are designed to meet the exacting requirements of Military Specification MIL-R-93. The P Series offers high stability and low Temperature Coefficient of Resistance (TCR). These resistors offer tolerances as accurate as ±0.005% and Temperature Coefficients of Resistance (TCR) as low as ±2PPM/°C in a wide range of resistance values.
FEATURES
- Wide Range of Precise Tolerances (±0.005% to ±1%)
- Low Inductance
- RoHS Compliant
- Axial configuration convenient for PCB and hard wiring applications
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SPECIFICATIONS
Material
- Terminals: Tinned Copper
- Encapsulation: Silicone Molding Compound
Electrical
- Resistance range: 1 ohms to 15M ohms
- Standard Tolerances: 0.005%, 0.01%, 0.02%, 0.05%, 0.1%, 0.25%, 0.5%, and 1%
- Temperature Coefficient of Resistance, 0°C to 85°C:
1 ohm to <10 ohms: ±25 PPM/°C
10 ohms to <100 ohms: ± 15 PPM/°C
≥100 ohms: ±10 PPM/°C
- Operating Temperature Range: -65°C to 145°C
- Temperature Compensating TCR: from +80 through +6000 PPM
- TCR Matching: to ±0.5 PPM/°C at 25°C
Derating
P Series Resistors must be derated for tolerances below 0.1% and for elevated ambient temperatures. Choose the curve corresponding to the desired tolerance. Determine the maximum allowed percentage of rated power from the graph based on the maximum ambient temperature expected during use.
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Download Datasheet (PDF)