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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 (non-inductive below 0.25
ohms)
- 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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