BVS Manganin 4-Pin SMD Chip Resistor with Metal Alloy
●Accuracy ±0.5%, ±1%±5%
●Electron beam welding process.
●Alloy material: manganese copper (M), kama (K), iron chromium aluminum (F.
●Operating temperature range: -55C~+175℃
●Good product consistency, high reliability, stability, strong pulse resistance.
Description
Overview
Our BVS series chip shunt resistor offers reliable current sensing performance, designed for high-current, low-ohmic applications. This 4-pin manganin chip shunt resistor ensures minimal thermal EMF and stable resistance under load. Ideal for BMS, EV, and power management systems.
Features
High accuracy options: ±0.5%, ±1%, ±5%
Electron-beam welded structure for excellent consistency and durability
Low thermal EMF (<1μV/°C) to reduce signal error
Ultra-low inductance (<3nH), ideal for high-speed switching circuits
High reliability with strong pulse resistance
Wide operating temperature: -55°C to +175°C
Compliant with AEC-Q200 and RoHS environmental standards
Custom specifications supported for tailored applications
Specifications
Resistance material: Manganin (M), Kama (K), FeCrAl (F)
Mount type: SMT 4-pin chip
Operating temp: -55°C to +175°C
Resistance tolerance: ±0.5% / ±1% / ±5%
RoHS & AEC-Q200 compliant
Custom shape, size, and resistance values available
| Model | W (mm) | H (mm) | B (mm) | L (mm) | C (mm) | A (mm) | P (mm) | D (mm) |
|---|---|---|---|---|---|---|---|---|
| BH-0.3mR | 8.3±0.3 | 6.5±1 | 5±0.3 | 5.3±0.3 | 2.7±0.5 | 3.8±0.5 | 1.3±0.1 | 1.8±0.1 |
| BH-0.5mR | 8.3±0.3 | 5.9±1 | 5±0.3 | 5.3±0.3 | 2.1±0.5 | 3.8±0.5 | 1.3±0.1 | 1.8±0.1 |
| BH-1mR | 8.3±0.3 | 5.5±1 | 5±0.3 | 5.3±0.3 | 1.7±0.5 | 3.8±0.5 | 1.3±0.1 | 1.8±0.1 |
| BH-2mR | 8.3±0.3 | 5.7±1 | 5±0.3 | 5.3±0.3 | 1.9±0.5 | 3.8±0.5 | 1.3±0.1 | 1.8±0.1 |
| BH-3mR | 8.3±0.3 | 5.4±1 | 5±0.3 | 5.3±0.3 | 1.6±0.5 | 3.8±0.5 | 1.3±0.1 | 1.8±0.1 |
For higher power and resistance, please contact the manufacturer for customization.
Performance Testing
| Item | Requirement | Test Method |
|---|---|---|
| Short Time Overload | ±0.2% | Rated Power × 5 for 5 seconds |
| Load Life [Terminal temp. max.105℃] | ±1.0% | 90 min. “ON”, 30 min. “OFF” for 2000 hours |
| Resistance to Soldering Heat | ±0.2% | 350℃ for 30 seconds or 250℃ for 10 min. |
| Thermal Shock | ±0.1% | -65℃ → 25℃ → 125℃ → 25℃, 25 cycles |
| Moisture Resistance | ±0.2% | 90~98% RH, +25℃ → +65℃ → -10℃, 10 cycles |
| High Temperature Exposure | ±0.2% | 140℃ for 250 hours |
| Vibration, High Frequency | ±0.2% | 15g, 10~2000Hz, 36 cycles |
| Inductance | < 3nH | 2μVrC max. |
| Thermal EMF | 0–100℃ | [pV/℃] |
| Current Noise | ±0.01% | MIL-STD-202 Method 308 |
| Voltage Coefficient | Linearity error < 120dB | MIL-STD-202 Method 309 |
| Shock | ±0.2% | 50g’s, 11ms |
Applications of Chip Shunt Resistor in EV and BMS Systems
Chip shunt resistors are critical components in modern electric vehicles (EVs) and Battery Management Systems (BMS), where accurate current measurement is essential for performance, safety, and energy efficiency. In EVs, these precision resistors monitor charging and discharging currents, detect short circuits, and help balance battery cells. In BMS applications, they provide real-time current feedback to ensure proper thermal regulation and prevent overcurrent conditions. The compact size and low TCR of our 4-pin manganin chip shunt resistors make them ideal for space-constrained PCBs while ensuring high accuracy and long-term reliability.
Refer to IEEE standards for detailed technical guidance on current sensing resistors.
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