Wieland shunts enable accurate current measurement in battery packs, motor drives and charging systems. The precision resistors maintain accuracy from –40 °C to +170 °C with minimal thermal drift, supporting safe and efficient energy management in automotive applications.
As a long-standing supplier in automotive e-mobility components, Wieland combines metallurgical expertise with in-house manufacturing capabilities to provide AEC-Q200 qualified and RoHS compliant shunt solutions, from standard variants to customized designs engineered to customer specifications.
Wieland offers five proven standard shunt variants for high-precision current measurement in automotive applications: W6918, W8518, W8420, W8436 and W8536.
Power ratings range from 36 W to 50 W, with nominal resistance values from 25 µΩ to 100 µΩ. All standard shunts are manufactured using electron beam welded construction with Wieland-K14 copper and Wieland-FX7 resistance alloy.
Wieland develops fully customized shunt solutions tailored to specific design requirements and application constraints.
Custom options include non-standard dimensions and geometries, specialized resistance values, dual shunts for parallel current measurement, optimized material combinations, modified mounting configurations and enhanced thermal management for extreme high-current applications.
The in-house engineering team applies Design for Manufacturing, DFM, principles throughout development. From prototype validation to high-volume series production, Wieland controls all manufacturing steps.
Our standard shunts are designed according to uniform sizes and resistance values.
Currently, the Wieland portfolio includes the following basic shunts.
| Variant | Length [mm] | Width [mm] | Power Rating [W] | Resistance values [µΩ] |
|---|---|---|---|---|
| W6918 | 69 | 18 | 36 | 50, 100 |
| W8518 | 85 | 18 | 36 | 50, 100 |
| W8420 | 84 | 20 | 36 | 50, 100 |
| W8436 | 84 | 36 | 50 | 25, 50 |
| W8536 | 85 | 36 | 50 | 25, 50 |
Wieland shunts are designed for precise current measurement in battery management systems, motor control units and high-voltage power distribution networks. They support safe and efficient energy management in battery packs, motor drives and charging systems.
| Application area | Application examples |
|---|---|
| Electric vehicles | Battery management systems |
| Motor control | Motor control units |
| High-voltage systems | High-voltage power distribution networks |
| Battery systems | Battery packs |
| Drive systems | Motor drives |
| Charging systems | Charging systems |
| Automotive current measurement | High-precision current measurement in automotive applications |
| High-current applications | Customized shunts with enhanced thermal management for extreme high-current applications |
