Bus-bar type manganin shunts have extremely low resistance value while suffering heavy electric current and high pulse power. We can make stamp plate by manganin 6J12 or 6J13, which are the most popular model in China. By high-speed precision stamping process, we can get pure manganin shunt or EBW (electron beam welding) shunt plate, both can serve as final resistors or semi-products integrated with latching relays, for which further welding process is required. We can manufacture EBW shunt resistors, which have advantage on price, as only a small fraction of expensive manganin is consumed. According to different welding technicals, we can also braze welded shunts with copper lugs, or spot welded shunts with primary wires or brass terminals.
As a type of Manganese alloy based on the technology of bimetal, our high sensitivity shunt resistors serve as current sensors in electronic devices, such as cordless power tools, electric bicycles, ammeters, KWH meters for AC or DC circuits. For AC measument, the bus-bar manganin shunts can be replaced by mini current transformers, which provide good galvanic separation but higher price.
In some circumstances, only the connection conductor is required, we can provide U-shape neutral busbar or current bar made of pure copper, and stamping plate made of manganin. Stamped parts are available as semi-products. We can manufacture these customized parts of complicated structures by high-speed stamping machines and provide samples within a couple of days.
Bus-bar Type Manganin Shunt
Features
- High accuarcy, resistance tolerance <±3%
- 6J13 / 6J12 Manganin, T2 Copper
- Temperature coefficient as low as 40 / 20 ppm/K
- No visible welds, smooth surface
- Wide-range of resistance value available
- Thickness range from 0.4mm to 5.0mm
- Punched by high-speed stamping machines
- Customized shunt of complicated structure available
- 100% tested by high precision micro ohm meters
Applications
- Electrical measuring instruments
- Electrical protective devices
- Current sensing modules
- Electromechanical meter
- Automatic control system
- Electronic power meter
- Motor controller
- Battery Management System
- Electric Vehicle
- Cordless Power Tools
Specifications
| Item | Value |
|---|---|
| Description | Bus-bar Type Manganin Shunt |
| Type | Low TCR Value Fixed Resistor |
| Technology | Precision Alloy |
| Assembly Type | Screwing, PCB Mounting |
| Material | 6J13/6J12 Manganin, T2 Copper |
| Finish | Degreasing and Anti-tarnishing Treatment, Nickel/Silver/Tin Plating |
| Welding Method | EBW (Electron Beam Welding), Spot Welding |
| Thickness | 0.4 mm ~ 5.0 mm |
| Resistance Value | < 0.002 Ω |
| Resistance Tolerance | ±3%, ±5% |
| Temperature Coefficient | ±20ppm/K, ±40ppm/K |
| Current Rating | 5~200 A |
| Rated Power | 0.1~3.6 W |
| Operating Temperature: | -65~+170℃ |
| Weight | Approx. 1~200 g |
| Accept Customized | Yes |
Basic Parameters
| Model (Part Number) | Resistance (μΩ) | Current Rating (A) | Mounting Hole (mm) | Length (Dist.) (mm) | Thickness (mm) | Weight (g) |
|---|---|---|---|---|---|---|
| SE100-13A | 130 | 100 | 2-Φ2.5 | 25.5 (16) | 2.0 | 9 |
| SE80-20A | 200 | 80 | 2-Φ2.5 | 30 (22) | 2.0 | 8 |
| SE100-20A | 200 | 100 | 10 | 80 (70) | 2.0 | 17 |
| SE80-23A | 225 | 80 | / | 19.8 | 2.0 | 2.7 |
| SE60-25B | 250 | 60 | 2-Φ5.2 | 31 (21) | 1.5 | 5.4 |
| SE60-25A | 250 | 60 | 2-Φ5.2 | 31 (21) | 1.5 | 3.6 |
| SE30-30A | 300 | 30 | 2-Φ5.2 | 32 (21.5) | 1.0 | 2.4 |
| SE60-30A | 300 | 60 | / | 26 | 1.6 | 2.8 |
| SE70-30A | 300 | 70 | 4.8*1.5 | 60.5 | 2.0 | 7.95 |
| SE40-35B | 350 | 40 | Φ4.0 | 31 | 1.2 | 2.3 |
| SE40-35A | 350 | 40 | Φ4.0 | 31 | 1.2 | 2.36 |
| SE50-35A | 350 | 50 | Φ4.0 | 31 | 1.2 | 2.85 |
| SE60-35A | 350 | 60 | Φ4.2 | 32 | 1.2 | 3.5 |
| SE80-35A | 350 | 80 | Φ4.2 | 33.7 | 1.6 | 4.8 |
| SE100-35B | 350 | 100 | Φ4.2/3.1 | 33 (25) | 1.6 | 5.3 |
| SE30-44A | 440 | 30 | / | 20.5 | 1.0 | 1.15 |
| SE30-50B | 500 | 30 | Φ4.2 | 26 | 1.0 | 1.59 |
| SE30-50D | 500 | 30 | Φ4.0 | 31 | 1.0 | 1.57 |
| SE30-50A | 500 | 30 | Φ4.2 | 25 | 1.0 | 1.45 |
| SE30-50E | 500 | 30 | Φ4.2 | 31 | 1.0 | 1.6 |
| SE40-50C | 500 | 40 | Φ4.2 | 30.75 | 1.13 | 2.35 |
| SE40-50B | 500 | 40 | Φ4.2 | 26 | 1.2 | 1.75 |
| SE40-50A | 500 | 40 | Φ4.2 | 30.75 | 1.13 | 2.4 |
| SE50-50B | 500 | 50 | Φ4.2 | 33 | 1.6 | 3.26 |
| SE-1 | 50~1500 | 10~200 | Φ1.5~12 | 5~150 | 0.5~3.0 | 1~200 |
Note:
The above data are selected from some popular models we produce. Please contact us for detail datasheet. We can also design some special EBW manganin shunt plates to meet customers’s special requirements.