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To make the TTIAsia.com experience more targeted and user-friendly, TTIAsia.com (and selected third parties) use “cookies” on this website. This technology helps us gather statistical and analytical information for personalization purposes, but the choice to accept the cookies is always yours.

These cookies are necessary for our website to function and cannot be deactivated. As a rule, these cookies enable our website’s proper functioning and support critical features that you have requested such as the maintaining of your shopping cart and maintaining your session when you have logged in as a customer. Your browser can be set to block cookies or inform you of their use. Blocking these technical cookies will result in the website not functioning as intended.

These cookies allow us to understand how the website is being used and how it is performing so that we can make improvements to your experience. By allowing these cookies you help us understand which pages are most important, and which are less so and where work may need to be done to improve the speed or content of our pages. These cookies may be set by us, or they may be set by providers whose tools we use to help in our analysis.

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TT Electronics OAR Current Sense Resistors

TT Electronics Open Air Resistor (OAR) Current Sense Resistors provide current measurement in circuits where accurate low resistance sensing is required. These metal element resistors are available in tight pitch configurations, with a low inductance below 10nH. The OAR series offers power ratings of 1W, 3W, and 5W at 85°C and operates within a temperature range from -40°C to +125°C. These Pb-free resistors find applications in automotive power steering systems and wiper controls.

Features

Hotspot isolated from the PCB
Low TCR resistance wire
Pb-free
Surge current capability

Applications

Body computers
Current sensing
Heated seats
Motor controllers
Power steering systems
Wiper controls

Technical Specifications

Parameters	Values
Inductance	<10nH
Operating Temperature Range	-40°C to +125°C
Power Ratings at 85°C	1W, 3W, and 5W
Resistance Tolerance	±1%, ±2%, and ±5%