LEM HOB 130-P HOB Series Open Loop Hall Effect Current Transducer
LEM HOB 130-P Product Overview
The HOB 130-P is an open-loop Hall effect current transducer from LEM's HOB Series, designed for the electronic measurement of DC, AC, and pulsed currents with galvanic isolation between the primary and secondary circuits. This PCB-mount transducer is optimized for high-frequency power electronics, featuring a 1 MHz bandwidth and 200 ns response time, making it ideal for SiC and GaN-based applications .
Rated for 130 A nominal with a measuring range of ±250 A, it outputs a ratiometric analog voltage with ±1.2% accuracy and ±0.45% linearity . Sensitivity is 8 mV/A . Supply voltage range is 4.6 V to 5.5 V with a maximum current consumption of 26 mA . Mass is 30 g and operating temperature ranges from -40°C to +105°C . Insulation features reinforced insulation with creepage and clearance distances >11 mm. The integrated primary conductor has very low resistance of 60 nΩ. The device is designed for through-hole PCB mounting .
LEM HOB 130-P Key Specifications
|
Parameter |
Value |
|
Rated current (IPN) |
130 A |
|
Measuring range (IPM) |
±250 A |
|
Output signal |
Ratiometric voltage |
|
Sensitivity |
8 mV/A |
|
Supply voltage (VC) |
4.6 V to 5.5 V |
|
Accuracy |
±1.2 % |
|
Linearity (εL) |
±0.45 % |
|
Response time (tD90) |
200 ns |
|
Bandwidth (BW) |
1 MHz (-3 dB) |
|
Insulation |
Reinforced (>11 mm creepage/clearance) |
|
Operating temp (TA) |
-40°C to +105°C |
|
Mounting |
PCB (through-hole) |
|
Technology |
Open-loop Hall effect |
LEM HOB 130-P Key Advantages
The HOB 130-P employs open-loop Hall effect technology, delivering ±1.2% accuracy and ±0.45% linearity while providing reinforced galvanic isolation with >11 mm creepage and clearance . A key differentiator is the 1 MHz bandwidth and 200 ns response time, significantly faster than typical 3 µs alternatives, making it perfect for high-frequency SiC and GaN power electronics .
The single +5 V supply simplifies integration into low-voltage digital systems. The integrated primary conductor with 60 nΩ resistance minimizes power losses, and the design offers high di/dt and dv/dt immunity for reliable operation in noisy power electronics environments . The device is factory calibrated and complies with IEC 61010-1, IEC 61800, and UL 508 standards .
LEM HOB 130-P Typical Applications
Handheld plasma cutters and welding equipment
DC-DC converters
AC variable speed drives and servo motor drives
Static converters for DC motor drives
Battery supplied applications
Uninterruptible Power Supplies (UPS)
Switched Mode Power Supplies (SMPS)
Solar inverter MPPT and combiner box applications
Power supplies for welding applications
Wide bandgap (WBG) power electronics
Why Choose the LEM HOB 130-P?
The HOB 130-P combines a 130 A rated current and ±250 A measuring range with 1 MHz bandwidth and 200 ns response time in a compact PCB-mount package with a single +5 V supply . Manufactured by LEM, it delivers stable, accurate, and safe current measurement for high-frequency industrial applications. The open-loop Hall effect design offers a cost-effective solution with excellent interference immunity, small footprint, and wide -40°C to +105°C operating temperature range . The reinforced insulation with >11 mm creepage and clearance ensures safe operation in demanding environments. The product is Active with a 45-week manufacturer lead time .
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