# Current Transducer, LESR Series, 50 A, -150A to 150A, 0.45 %, Voltage Output, 4.75 Vdc to 5.25 Vdc
**URL**: https://novapart.co/products/LESR%2050-NP/current-transducer-lesr-series-50-a-150a-to-045
**SKU**: LESR 50-NP
**Manufacturer**: LEM
**Category**: Sensors & Transducers || Sensors || Current Sensors
**Price**: €13.4600
**Stock**: 100+
**Lead Time**: 64 days (indicative)
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| Accuracy | 0.5% |
| Accuracy % | 0.45% |
| Product Range | LESR Series |
| Response Time | 0.4µs |
| Primary Current | 50A |
| Sensor Mounting | Through Hole |
| Measured Current | AC / DC / Pulsed |
| Sensor Output Type | Voltage |
| Supply Voltage Range | 5.25V to 4.75V |
| Secondary Signal Type | 2.5V |
| Supply Voltage Dc Max | 5.25V |
| Supply Voltage Dc Min | 4.75V |
| Current Sensor Technology | Closed Loop, Hall Effect |
| Operating Temperature Max | 85°C |
| Operating Temperature Min | -40°C |
| Current Measuring Range Ac | -150A to 150A |
| Current Measuring Range Dc | -150A to 150A |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:3253160/)
## **Product Datasheet**
The LESR Series extends the LES Series by adding reference voltage access, enabling enhanced signal conditioning and greater flexibility at system level. These current sensors are dedicated to the precise measurement of DC, AC, and pulsed small currents, with nominal values typically spanning 6A to 50A.
Featuring an integrated primary conductor, low offset drift, and stable operation from -40 °C to +105 °C, the LESR Series is well suited for industrial designs requiring fine current resolution and external reference management. Its closedloop Halleffect architecture delivers performance comparable to Fluxgate technology, without the associated complexity or cost.
## **Main characteristics**
- Closed loop multi-range current transducer
- Voltage output
- Unipolar supply voltage
- Compact design for PCB mounting
- Cost attractive
- PCB mounting in various footprints (3 or 4 primary pins with various layouts)
- With integrated primary conductors
- Compact design
- High overall accuracy at +105°C up to 2%
## **Benefits**
- Very low offset drift
- Very good dv/dt immunity
- Fast response time <0.4 µs
- CASR footprint compatible
- Reference pin with two modes: Ref IN and Ref OUT
- Extended measuring range for unipolar measurement
## **Typical applications**
LESR products are tailored for industrial use and fulfill a wide range of functions across different applications.
- AC variable speed and servo motor drives
- Static converters for DC motor drives
- Battery supplied applications
- Uninterruptible Power Supplies (UPS)
- Switched Mode Power Supplies (SMPS)
- Power supplies for welding applications
- Solar inverters
|• Solar inverters||||||
|---|---|---|---|---|---|
|**Product**|**Check stock**|**Document**|**Nominal value**|**Secondary**
**Nominal**
**Signal**
**Value**|**Op. Temperature**|
|LESR 6-NP||Datasheet3D|6 A|2.5 +/- 0.625 V|-40 to 105 °C|
|LESR 6-NP/SP1||Datasheet3D|6 A|2.5 +/- 0.625 V|-40 to 105 °C|
|**Product**|**Check stock**|**Document**|**Nominal value**|**Secondary**
**Nominal**
**Signal**
**Value**|**Op. Temperature**|
|---|---|---|---|---|---|
|LESR 15-NP||Datasheet3D|15 A|2.5 +/- 0.625 V|-40 to 105 °C|
|LESR 15-NP/SP1||Datasheet3D|15 A|2.5 +/- 0.625 V|-40 to 105 °C|
|LESR 25-NP||Datasheet3D|25 A|2.5 +/- 0.625 V|-40 to 105 °C|
|LESR 25-NP/SP1||Datasheet3D|25 A|2.5 +/- 0.625 V|-40 to 105 °C|
|LESR 50-NP||Datasheet3D|50 A|2.5 +/- 0.625 V|-40 to 85°C|
|LESR 50-NP/SP1||Datasheet3D|50 A|2.5 +/- 0.625 V|-40 to 85°C|
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## Links
- [View this product on Novapart](https://novapart.co/products/LESR%2050-NP/current-transducer-lesr-series-50-a-150a-to-045)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/lem/lesr-50-np/current-sensor-voltage-150a-to/dp/3253160)
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