Product Overview
The WELWYN OAR-3 series are through hole, metal element current sensing resistors with 3W power rating. These OAR (Open Air resistor) series have low Resistance ranges from 2mohm to 100mohm.
- ±1%, ±2% and ±5% tolerance
- Temperature coefficient is resistance (TCR) is ±20ppm/°C
- Superior surge performance
- Hot spot isolated from PCB material
- Endurance is 1000h at 25°C
- Operating temperature range -40°C to +125°C
Product details
| Resistance |
0.02ohm |
| Power Rating |
3W |
| Resistor Case / Package |
Radial Leaded |
| Temperature Coefficient |
± 20ppm/°C |
| Product Width |
1.65mm |
| Operating Temperature Min |
-40°C |
| Qualification |
- |
| Product Range |
OAR Series |
| Resistor Technology |
Metal Strip |
| Resistance Tolerance |
± 1% |
| Product Length |
15.24mm |
| Product Height |
23.4mm |
| Operating Temperature Max |
125°C |
| SVHC |
No SVHC (04-Feb-2026) |
Other details
| Brand |
TT ELECTRONICS / WELWYN |
| Part Number |
OAR3 - R020FI |
| Quantity |
Each |
| Product Change Notice (170.97KB) EN |
View or download |
| Technical Data Sheet (885.04KB) EN |
View or download |
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