LSRX Series - Self-powered load sensor, low-cost proof relay

Series: LSRX
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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

Help improve output voltage clamping – even when input voltage is high and diode currents are large. Our PolyZen devices are polymer-enhanced, precision Zener diode micro-assemblies. The advanced feature of these devices is that the Zener diode is thermally coupled to a resistively non-linear PPTC (Polymer Positive Temperature Coefficient) layer. This PPTC layer is fully integrated into the devices and is electrically in series between VIN and the diode-clamped VOUT. These offer resettable protection against multi-watt fault events without the need for multi-watt heat sinks. Use PolyZen devices to help protect low-power DC applications from damage caused by inductive voltage spikes, voltage transients, incorrect power supplies, and reverse bias.

Features:
Multi-Watt and Time Delayed Protection

  • Overvoltage transient suppression
  • Stable VZ vs. fault current
  • Time delayed, overvoltage trip
  • Time delayed, reverse bias trip
  • Multi-Watt power handling capability
  • Integrated device construction
  • RoHS compliant

Benefits:

  • Stable Zener diode helps shield downstream electronics from overvoltage and reverse bias
  • Trip events shut out overvoltage and reverse bias sources
  • Analog nature of trip events helps minimize damage from upstream inductive spikes
  • Minimal power dissipation requirements
  • Single component placement

Applications:

  • DC power port protection in portable electronics
  • DC power port protection for systems using barrel jacks for power input
  • Internal overvoltage and transient suppression
  • DC output voltage regulation
  • Tablet PCs and portable electronics

Access specifications, certifications, check availability and order parts below

Catalog #Output
Form		Termination TypeMounting MethodDimensionsWeight (lbs/g)HumidityInput Current Range (A)Maximum Input PowerOutput Load Rating (VA)Pull-in Current (A)Sensor Hole SizeStorage Temperature (F/C)StockSamplesCompare
LSRXSPST - Form ATorque: 3 in.-lbs.; Wire: 12 - 26 AWG; 0.25 in quick-connect fast-on terminalsSurface mount2.7 H x 1.13 W x 2.5 D in. (68.6 x 28.7 x 63.5 mm)0 Lb10 - 95% non-condensing per IEC 68-2-35 - 200 ContinuousInduced from AC conductorPilot Duty: 480 VA @ 240 Vac B300; General Purpose: 5 A @ 240 Vac4.5 (typical); 7.0 (max)0.725 in diameter-40° to 80°C (-40° to 176°F)CheckOrder
LSRX-CSPST - Form ATorque: 3 in.-lbs.; Wire: 12 - 26 AWG; Depluggable screw terminalsSurface mount2.7 H x 1.13 W x 2.5 D in. (68.6 x 28.7 x 63.5 mm)0 Kg10 - 95% non-condensing per IEC 68-2-35 - 200 ContinuousInduced from AC conductorPilot Duty: 480 VA @ 240 Vac B300; General Purpose: 5 A @ 240 Vac4.5 (typical); 7.0 (max)0.725 in diameter-40° to 80°C (-40° to 176°F)CheckOrder
LSRX-OEMSPST - Form ATorque: 3 in.-lbs.; Wire: 12 - 26 AWG; 0.25 in quick-connect fast-on terminalsSurface mount2.7 H x 1.13 W x 2.5 D in. (68.6 x 28.7 x 63.5 mm)0 Kg5 - 200 ContinuousInduced from AC conductorPilot Duty: 480 VA @ 240 Vac B300; General Purpose: 5 A @ 240 Vac4.5 (typical); 7.0 (max)0.725 in diameter-40° to 80°C (-40° to 176°F)CheckOrder
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