Paul Chigo
    I ordered 2 Sets 11KV NER from JDC for our projects 2 years ago, the quality and delivery time were very good, NER works perfectly unit now, we will treat JDC as our valuable partners!!
    Jeffery Bell
    I found JDC because Vishay/TT current sense resistor was shortage, JDC provided alternative parts in a short time and their parts can fully replace Vishay/TT part with much better lead time.
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Metal Element Open Air Resistor

Place of Origin CHINA
Brand Name JDC
Certification ROHS&Reach
Model Number OAR
Minimum Order Quantity 5K
Price US$0.15-US$0.35
Packaging Details Bulk in Carton
Delivery Time 7-10 working days
Payment Terms T/T, L/C, Western Union, Paypal
Supply Ability 500Kpcs per Month

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Product Details
Rated Power 1W, 3W, 5W Resistance Range 5mR-100mR
Materials Constantan Or Nichrome Tolerance ±1%,±2%,±5%
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Metal Element open air resistor


100mR Open Air Resistor


5W Open Air Resistor

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Product Description

Open Air Sense Resistor, Metal Element, Low resistance and inductance, 1% tolerance


Open Air Metal Alloy Resistors are designed for sampling current with a very low resistance value from 0.005Ω to 0.1Ω and a very low inductive, offer a high current, flameproof alternative to conventional axial devices and flat chips for current-sense circuits where PC board space is at a premium. The open air resistor's footprint is reduced by extending the height of the device above the board, thus keeping the resistor element's "hot spot" safely off the PC board and providing for increased air circulation under it, which in turn provides increased heat dissipation and cooler operation.



  1. Low inductance.
  2. Radial leads, low resistance value 0.005Ω ~ 0.1Ω.
  3. High stability open-air style. Precision alloys resistive element.
  4. Pb-free and RoHS compliant.
  5. Standard tolerance ±1%, ±2%, ±5%
  6. Open air design and all welded construction



  1. Inverter and Switching Power Supplies.
  2. CPU Drive Control, Power Tool Motor controls.
  3. Residual Battery Power Detection, Current Sensing.
  4. Automotive, Feedback System, Power Supply Shunt, Current Detective.




Metal Element Open Air Resistor 0


Type Rated Power Resistance Range A(±1.0) B(Max) C(±0.8) E(±0.2)
OAR1 1W R005-R05 11.4 8.3 3.2 1.65
OAR3 3W R005-R05 15.2 25.4
OAR5 5W R005-R01 20.3 25.4