Low-Ohmic Shunt Resistor for UPS & Power Control Applications

Description

Accurate Current Sensing for High-Power Industrial Systems

This low-ohmic shunt resistor is engineered for precision current sensing in UPS systems, power distribution units, and industrial power control circuits. It features stable low-resistance performance, compact form factor, and high thermal durability, making it ideal for applications requiring accurate overload detection and current monitoring. Available in custom resistance values, terminal styles, and mounting configurations.

Key Features

  • Low-ohmic resistance for accurate high-current detection

  • Stable performance under continuous thermal load

  • Compact metal strip structure for easy integration

  • Suitable for screw-mount or PCB soldering

  • Optional 3-terminal Kelvin design for precision sensing

  • Compliant with RoHS and lead-free standards

Technical parameters

Parameter Specification
Resistance Range 50μΩ – 1mΩ
Current Rating 5A – 100A
Tolerance ±1%, ±0.5% available
Terminal Type 2-terminal / 3-terminal (Kelvin)
Material Manganin / Cu-Ni Alloy
Operating Temp Range -55°C to +170°C
RoHS Compliant Yes
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
(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
   
MType M 2 Type LxType
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

Typical Applications

  • UPS systems and backup power units

  • Industrial power controllers and inverters

  • Smart circuit protection in automation systems

  • High-current sensing for battery-powered equipment

  • Data center and telecom power modules

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