Precision Manganin Shunt Resistor
Our precision shunt resistors have the temperature coefficient as low as 20ppm and resistance tolerance less than 1%, while the resistance value is usually less than 0.001 ohm. We can design customized manganin shunt of complicated structures and provide samples within a couple of days. Due to our high-speed stamping machines, we can achieve on-time delivery for large-scale production.
Our precision manganin shunt resistor is the key component for electric current measuring, battery sensing and so on. Manganin is kind of copper-manganese-nickel (CuMnNi) alloy for use at room temperature. The bimetal alloy is characterized by very low thermal electromotive force (emf) compared to copper. Because of its moderate price and low TCR value, 6J13 manganin is the model most widely used in China. We can make the resistance tolerance as low as 1% and temperature coefficient less than 20ppm, while the resistance value is usually less than 1000 micro ohm or 0.001 Ohm. As the resistance is extremely low, our manganin shunts have very low power loss, usually less than 50mW.
We can design customized manganin shunt of complicated structures and provide samples within a couple of days. Due to our high-speed stamping machines, we can achieve on-time delivery for large-scale production. We can also provide shunt intergrated with miniature current transformers or latching relays.
Features
- Resistance 120μΩ±5%, rated power 1.2W
- EB welded 3.0mm thick copper & 2.0mm manganin strip
- Max current 100A, width 33mm, weight 16g
- Mounting holes 2-Φ5.3mm, distance 21mm
- 100% tested by high precision micro ohm meters
Specifications
| Part Number | SE100-12B |
| Description | Precision Manganin Shunt Resistor |
| Material | T2 Copper, 6J13 Manganin |
| Finish | Degreasing and Anti-tarnishing Treatment |
| Welding Method | EBW (Electron Beam Welding) |
| Resistance Value | 120 μΩ (0.12 mΩ) |
| Resistance Tolerance | ± 5 % |
| Temperature Coefficient | ± 20 ppm/K |
| Current Rating | 100 A |
| Rated Power | 1.2 W (70 °C) |
| Power Loss | < 50 mW |
| Operating Temperature: | -40 ~ +70 °C |
| Wire Gauge | AWG 22 |
| Wire Length | 130mm (White, Blue) / 170mm (Red) |
| Thickness | 3.0 mm / 2.0 mm |
| Weight | Approx. 16 g |
| Fix Method | Mounting Holes Screwing |
Dimensions
| L | W | T | D | S |
| 33 | 24 | 3.0 | 2-Φ5.3 | 21 |