Print Page
OAR3 - R040FI
Current Sense Resistor, 0.04 ohm, OAR Series, 3 W, Metal Strip, Radial Leaded, ± 1%
Image is for illustrative purposes only. Please refer to product description.
| Manufacturer | TT ELECTRONICS / WELWYN |
|---|---|
| Manufacturer Part No | OAR3 - R040FICopy |
| Manufacturer Standard Lead Time | 38 weeks |
| Order Code | 1200371 |
| Product Range | OAR Series |
| Your Part Number | |
| Technical Datasheet |
7 total stock globally
Need more?
7 Delivery in 3-5 Business Days(UK stock)
| Quantity | Price (Incl GST) |
|---|---|
| 5+ | $5.390 ($5.929) |
| 50+ | $2.850 ($3.135) |
| 250+ | $2.030 ($2.233) |
| 500+ | $1.880 ($2.068) |
| 1000+ | $1.860 ($2.046) |
| 2500+ | $1.830 ($2.013) |
Price for:Each
Minimum: 5
Multiple: 5
$26.95 ($29.65 inc GST)
Line Note
Added to your Order Confirmation, Invoice, and Dispatch note for this order only.
Product Information
| Manufacturer | TT ELECTRONICS / WELWYN |
|---|---|
| Manufacturer Part No | OAR3 - R040FICopy |
| Manufacturer Standard Lead Time | 38 weeks |
| Order Code | 1200371 |
| Product Range | OAR Series |
| Technical Datasheet | |
| Resistance | 0.04ohm |
| Product Range | OAR Series |
| Power Rating | 3W |
| Resistor Technology | Metal Strip |
| Resistor Case / Package | Radial Leaded |
| Resistance Tolerance | ± 1% |
| Temperature Coefficient | ± 20ppm/°C |
| Product Length | 15.24mm |
| Product Width | 1.65mm |
| Product Height | 23.4mm |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 125°C |
| Qualification | - |
| SVHC | No SVHC (04-Feb-2026) |
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
Technical Specifications
| Resistance | 0.04ohm |
|---|---|
| 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) |
Technical Docs (2)
Legislation and Environmental
| Country of Origin: Country in which last significant manufacturing process was carried outCountry of Origin: | United States Country in which last significant manufacturing process was carried out |
|---|---|
| Tariff No: | 85369010 |
| US ECCN: | EAR99 |
| EU ECCN: | NLR |
| RoHS Compliant: | Yes RoHS |
| RoHS Phthalates Compliant: | Yes RoHS |
| SVHC: | No SVHC (04-Feb-2026) |
| Download Product Compliance Certificate | Product Compliance Certificate |
| Weight (kg): | .04 |