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Specifications
Mfr. Part #:
DHAB S/124
Key Attributes
Model Number:
DHAB S/124
Product Description
Product Overview
The LEM DHAB S/124 is an open-loop Hall effect current transducer designed for DC, AC, or pulsed current measurements in high-power, low-voltage automotive applications. It offers galvanic separation between the primary and secondary circuits and provides a dual-channel sensor for wider measurement range and redundancy. Key advantages include good accuracy across high and low current ranges, good linearity, low thermal offset and sensitivity drift, and a hermetic package.
Product Attributes
- Brand: LEM
- Technology: Open Loop Hall Effect
- Material (Case): PBT-GF30
- Material (Magnetic Core Channel 1): FeNi alloy
- Material (Magnetic Core Channel 2): FeSi alloy
- Electrical Terminal Coating: Brass tin plated
- Degrees of Protection: IP6K9K
- Origin: Not specified
- Color: Not specified
- Certifications: IEC 61000-4-2, ISO 10605, ISO 16750-2
Technical Specifications
| Parameter | Channel 1 | Channel 2 | Unit | Conditions |
| Primary Current Measuring Range | ±75 | ±500 | A | |
| Primary Nominal DC or RMS Current | ±75 | ±500 | A | @ TA = 25 °C |
| Offset Voltage (VO) | 2.5 | 2.5 | V | @ UC = 5 V |
| Sensitivity (G) | 26.7 | 4 | mV/A | @ UC = 5 V |
| Resolution | 1.25 | 1.25 | mV | @ UC = 5 V |
| Frequency Bandwidth (BW) | 70 | 70 | Hz | @ -3 dB |
| Ratiometricity Error (εr) | ±0.6 | ±0.6 | % | |
| Output Voltage Noise (peak-peak) (Vno pp) | ±10 | ±10 | mV | |
| Electrical Offset Current (IOE) | ±0.07 | ±0.6 | A | @ TA = 25 °C |
| Magnetic Offset Current (IOM) | ±0.03 | ±0.25 | A | @ TA = 25 °C |
| Offset Current (IO) | -0.15 to 0.15 | -1 to 1 | A | @ TA = 25 °C |
| Sensitivity Error (εG) | ±0.4 | ±0.4 | % | @ TA = 25 °C |
| Linearity Error (εL) | ±0.5 | ±0.5 | % | @ TA = 25 °C, @ Uc = 5 V, of full range |
| Parameter | Unit | Specification | Conditions |
| Supply Voltage (UC) | V | 4.75 to 5.25 | |
| Current Consumption (IC) | mA | 15 to 20 | |
| Maximum Output Current (Iout) | mA | -1 to 1 | |
| Load Resistance (RL) | kΩ | 10 | |
| Capacitive Loading (CL) | nF | 1 to 100 | |
| Ambient Operating Temperature (TA) | °C | -40 to 125 | High accuracy: -40 to 125 °C; Reduced accuracy: -10 to 65 °C |
| Ambient Storage Temperature (TS) | °C | -40 to 125 | |
| Mass | g | 82 | |
| Max Assembly Torque | N⋅m | 2.5 | (for M4 x 0.7) |
2410311332_LEM-DHAB-S-124_C454770.pdf
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