| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
840 pcs
|
840 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Mounting Type | |
| SVHC Present |
The OARS1R040FLF is a surface mount current sense resistor manufactured by Welwyn Components. This series offers flexible leads for thermal expansion and an open air design that reduces PCB heating.
Key electrical characteristics include a temperature coefficient of resistance (TCR) of ±40ppm/°C and an element TCR of ±20ppm/°C. The component is Pb-free and complies with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3).
The OARS series is designed for applications requiring precise current sensing. The open air format keeps the hot spot thermally distant from the solder joints, reducing undesirable heat delivery into the PCB. For high-precision applications, a Kelvin 4-terminal mounting method is recommended, where high current connections are made to larger pads and voltage sense connections to smaller central pads.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.05 | $0.05 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The TCR is ±40ppm/°C.
The element TCR is ±20ppm/°C.
The OARS1R040FLF is RoHS3 Compliant.
The MSL is 1 Unlimited.
The OARS1R040FLF is REACH Unaffected.
