Changsha Purple Horn E-Commerce Co., Ltd.
| working temperature | -40℃~+85℃ |
| Current Range | ±300A |
| Voltage - Supply | -15V~-12V;12V~15V |
| Band Width | 100kHz |
| Bidirectional Current Detection | Support |
| Description | ±300A Through Hole Current Sensors RoHS |
| Mfr. Part # | LA125-P |
| Package | Through Hole |
| Model Number | LA125-P |
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Product Specification
| working temperature | -40℃~+85℃ | Current Range | ±300A |
| Voltage - Supply | -15V~-12V;12V~15V | Band Width | 100kHz |
| Bidirectional Current Detection | Support | Description | ±300A Through Hole Current Sensors RoHS |
| Mfr. Part # | LA125-P | Package | Through Hole |
| Model Number | LA125-P |
The LEM LA 125-P/SP4 is a closed-loop Hall effect current transducer designed for the electronic measurement of DC, AC, and pulsed currents with galvanic separation between primary and secondary circuits. It offers excellent accuracy, linearity, low temperature drift, and a wide frequency bandwidth, making it suitable for demanding applications in AC variable speed drives, servo motor drives, static converters, UPS, SMPS, and welding power supplies, particularly in the traction domain.
| Specification | Value | Notes |
| Primary Nominal Current (IPN) | 125 A (rms) | |
| Primary Current Measuring Range (IPM) | 0 .. 300 A | |
| Secondary Nominal Current (ISN) | 62.5 mA (rms) | |
| Conversion Ratio (KN) | 1 : 2000 | |
| Supply Voltage (UC) | 12 .. 15 V ( 5 %) | |
| Current Consumption (IC) | 16 mA (@ 15 V) + IS | |
| Accuracy @ IPN, TA = 25 C | 0.60 % (@ 15 V) / 0.80 % (@ 12 .. 15 V) | |
| Linearity Error (L) | < 0.15 % | Typ |
| Offset Current (IO) @ IP = 0, TA = 25 C | 0.20 mA | |
| Magnetic Offset Current (IOM) | 0.25 mA | After 3 x IPN overload |
| Temperature Variation of IO | 0.20 .. 0.50 mA (-25C to +85C) / 0.30 .. 0.80 mA (-40C to -25C) | |
| Reaction Time (tra) | < 500 ns | |
| Step Response Time (tr) to 90% | < 1 s | |
| di/dt Accurately Followed | > 200 A/s | |
| Frequency Bandwidth (BW) (-1 dB) | DC .. 100 kHz | |
| Ambient Operating Temperature (TA) | - 40 .. + 85 C | |
| Ambient Storage Temperature (TS) | - 45 .. + 100 C | |
| Secondary Coil Resistance (RS) | 76 (@ TA = 70 C) / 80 (@ TA = 85 C) | |
| Mass | 55 g | |
| Isolation Test Voltage (Ud) | 4.5 kV rms / 8.4 kV (1) rms | 50 Hz, 1 min |
| Creepage Distance (dCp) | 8.8 mm | |
| Clearance (dCI) | 8.8 mm | |
| Comparative Tracking Index (CTI) | 175 | Group IIIa |
| Primary Through-hole | 17 4.5 mm or 13 11 mm | |
| Secondary Connection | 4 pins 0.63 x 0.56 mm | Recommended PCB hole 0.9 mm |
| Supplementary Fastening | 2 holes 1.75 mm | Recommended PCB hole 2.4 mm |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
300~500
Ecer Certification：
Verified Supplier
Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa... Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa...
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