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 | Value |
|---|---|
| Resistance Range | 50μΩ – 1mΩ |
| Tolerance | ±1%, ±0.5% |
| Terminal | 2-terminal / 3-terminal (Kelvin) |
| Material | Manganin / Cu-Ni alloy |
| Current Rating | Up to 500A |
| Operating Temperature | -55°C to +170°C |
| Mounting | SMD / screw / PCB weldable |
Product Nominal
| Type | K | 10 | 10 | 20 | U |
|---|---|---|---|---|---|
| Material | Constantan | 1.0mm | 20mΩ | U type | |
Material &Shape
| Material | Wire | Pin Pitch | Resistance | Shape |
|---|---|---|---|---|
| Current Shunt | K: Constantan-Similar products: manganese copper wire, tinned copper, copper nickel, etc.) | 10: 1.0mm | 10: 10mm / 20: 20mΩ | U: U type |
 | | (Orders are available) 1：Wire diameter of”A” 2：Rated current 3：Pin pitch Span of“W” 4：Resistance 5:Other requirements( height,pin pitch length,etc. | | A : wire data meter H : height H1: pin length E : Presser foot W : Pin pitch
|
Product Shapes
| Product Shapes | ||
|---|---|---|
| U Type
| UZ Type | HX Type |
| M Type
| M2 Type | LX Type |
Test Conditions
| Test Conditions | Max Resistance Change (ΔR%) |
|---|---|
| 1000 hours at 25°C (Loading Life) | ≤ 1% |
| 100 hours in Moisture | ≤ 1% |
| 1000 Thermal Cycles (-40°C to +150°C) | ≤ 1% |
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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