Description
Reliable current measurement in industrial and EMS control systems
This precision shunt resistor is engineered for accurate current sensing in EMS-manufactured power boards and high-current control systems. Featuring a low-ohmic metal strip design, it ensures stable resistance performance, minimal thermal drift, and long-term reliability under continuous load. Ideal for compact PCB layouts, the resistor supports 2-terminal and 3-terminal (Kelvin) options, meeting the requirements of power electronics, motor drivers, and industrial inverters.
Key Features
High-precision resistance for accurate current measurement
Low temperature coefficient for thermal stability
Compact design suitable for PCB power boards
Available in Kelvin 3-terminal version for improved sensing
RoHS and REACH compliant
Custom resistance values, stamping, and mounting options available
Technical Parameters
| Parameter | Value |
|---|---|
| Power Range | 50W – 6KW (customizable) |
| Resistance Range | 10Ω – 300Ω |
| Tolerance | ±5% |
| Insulation Voltage | Up to 2.5kV |
| Housing Material | Aluminum alloy |
| Operating Temp | -55°C ~ +155°C |
| Mounting | Panel mount / Bracket |
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 | 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.) | | M: M type, M2: M2 type, LX: Spiral, UZ: Folding feet, HX: HX |
Product Shapes
| Product Shape | Product Shape | Product Shape |
|---|---|---|
| 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% |
Applications
EMS-assembled high-current power boards
Motor control modules and industrial drives
Inverter systems for renewable energy or automation
DC-DC converters and UPS systems
Battery management and EV controller circuits
- EMS manufacturers often rely on precision shunt resistors for real-time current monitoring.
In high-current battery packs, precision shunt resistors offer consistent performance over extended cycles.
Explore more current sensing resistors-Precision Metal Strip Shunt Resistor for DC-DC Power Modules
