OARS1R040FLF The TT Electronics OARS1R040FLF is a surface mount current sense resistor featuring low resistance values and high precision. It offers flexible leads for thermal expansion and an open air design.
Mfr Part #:

OARS1R040FLF

Available from 1 distributors
Mfr Name: TT Electronics/BI
TT Electronics/BI
The TT Electronics OARS1R040FLF is a surface mount current sense resistor featuring low resistance values and high precision. It offers flexible leads for thermal expansion and an open air design.
Total Stock: 840 pcs
$ Price Range: $0.05

OARS1R040FLF Available from 1 distributor

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OARS1R040FLF Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Mounting Type
Power Rating
Resistance
Temperature Coefficient
Tolerance

OARS1R040FLF Description

Short technical summary and product information.

The TT Electronics OARS1R040FLF is a surface mount current sense resistor from the OARS series. It is designed with flexible leads for thermal expansion and an open air construction to reduce PCB heating.

 

Key electrical specifications include a resistance value of 0.04 Ohms with a tolerance of ±1%, and a power rating of 2W. The temperature coefficient is ±40ppm/°C, with an element TCR of ±20ppm/°C. This series is AEC-Q200 qualified.

 

The resistor utilizes copper terminations welded to a resistance alloy strip, with value adjustment achieved through width control and optional notch trimming. 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.

 

This component is Pb-free and complies with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3).

OARS1R040FLF Quick Information

Product Type: Current Sense Resistor
Series: OARS
Canonical Name: TT Electronics/BI OARS1R040FLF Surface Mount Current Sense Resistor
Subcategory: Surface Mount

OARS1R040FLF Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb-free

OARS1R040FLF Estimated Pricing

Qty Low High
1+ $0.05 $0.05

Estimated market price range - modelled values for guidance only, not live distributor offers.

OARS1R040FLF Features

  • Surface mount current sense resistor.
  • Low resistance value of 0.04 Ohms.
  • High precision with ±1% tolerance.
  • AEC-Q200 qualified for automotive use.
  • Pb-free and RoHS3 compliant.

OARS1R040FLF Applications

  • Ideal for current monitoring circuits.
  • Suitable for power management systems.
  • Used in automotive applications.
  • Effective in thermal expansion designs.

OARS1R040FLF FAQs

7 frequently asked questions generated from this part’s specifications.
What is the resistance value of the OARS1R040FLF?

0.04Ω.

What is the tolerance of this resistor?

±1%.

What is the power rating?

2W.

What is the temperature coefficient?

±40ppm/°C.

What is the mounting type?

Surface mount.

Is the OARS1R040FLF lead-free?

Yes, it is lead-free (Pb-free) as verified by the datasheet.

What is the element temperature coefficient?

±20ppm/°C.

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