Precision Shunt Open Air Resistor Current Sense Resistor
1. Low inductance. Solder ability copper leads (60/40).
2. Radial leads, low resistance value 0.005Ω ~ 0.1Ω.
3. High stability open-air style. Precision alloys resistive element.
4. Standard tolerance ±1%, ±2%, ±5%
5.Open air design and all welded construction
Description
Open Air Metal Alloy Current Sense Resistors
Current sense 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.
| Features： | ||||||||||||||||||
| 1、The press Pin process makes it easy to fix it on the circuit board before welding 2、Wide operating temperature range |
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| 3、Non-inductive design, inductance less than 10 nanohenry 4、Easy soldering of pins |
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| 5、Comply with ROHS REACH requirements | ||||||||||||||||||
| 6、Bulk, 2000pcs per pack or customized Product Model： |
| 1、Product Nominal: (Similar products: manganese copper wire, tinned copper, copper nickel, etc.) | ||||||||||||||||||
| Type | K | 10 | 10 | 20 | U | |||||||||||||
| Material | wire | Pin pitch | resistance | shape | ||||||||||||||
| Current shunt | K:Constantan | 10:1.0mm | 10:10mm | 20:20mR | U:U type M:M type M2:M2 type LX:Spiral UZ:Folding feet HX:HX |
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(Orders are available) 1：Wire diameter of”A” 2：Rated current 3：Pin pitch Span of“W” 4：Resistance 5:Other special requirements(board height,foot length,etc.) |
A : wire data meter | ||||||||||||||||
| H : height | ||||||||||||||||||
| H1: pin length | ||||||||||||||||||
| E : Presser foot | ||||||||||||||||||
| W : Pin pitch | ||||||||||||||||||
| 2、Product shape： | |||||||||||
| UType | Uz type | Hx Type | |||||||||
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| MType | M 2 Type | LxType | |||||||||
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| Test Conditions | Maximum resistance change percentage △R% | ||||||||||
| 1000 hours at 25℃ Loading life 1000 hrs at 25℃ | 1% | ||||||||||
| 100 hrs in moisture | 1% | ||||||||||
| Cycle 1000 times at -40℃-+150℃ | 1% | ||||||||||
| Test Conditions | Maximum resistance change percentage △R% | |||||||||||||||||
| 1000 hours at 25℃ Loading life 1000 hrs at 25℃ | 1% | |||||||||||||||||
| 100 hrs in moisture | 1% | |||||||||||||||||
| Cycle 1000 times at -40℃-+150℃ | 1% | |||||||||||||||||
| Electrical properties：Power Curve & S u r f a c e T e m p e r a t u r e | ||||||||||||||||||
Why Choose Us for Precision Shunt & Current Sense Resistors?
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Precision Matters: Our shunt resistors are manufactured with strict tolerance control, ensuring high measurement accuracy even under demanding current sensing applications.
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Thermal Stability: Open air design and low TCR (<50ppm/°C) ensure stable performance across wide temperature ranges.
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Reliable Manufacturing: With 10+ years of experience in resistor production, we ensure consistent quality from sample to mass production.
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Global Export Expertise: We serve clients in Europe, the US, and Southeast Asia — with full export documentation and support.
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Flexible Customization: Custom resistance values, terminal types, and configurations available to match your exact application needs.
✅ Whether you’re designing for power meters, BMS, or industrial controllers — we deliver reliable current-sensing solutions you can count on.
Applications
1. Inverter and Switching Power Supplies.
2. CPU Drive Control, Power Tool Motor controls.
3. Residual Battery Power Detection, Current Sensing.
