You have entered a value in the highlighted fields below that contain invalid characters. Please revise your selection using valid characters only.


LH1540AT - 

MOSFET Relay, 350 V, 120 mA, 25 ohm, SPST-NO

LH1540AT - MOSFET Relay, 350 V, 120 mA, 25 ohm, SPST-NO

Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
Order Code:
Technical Datasheet:
LH1540AT   Datasheet
See all Technical Docs

Product Information



Through Hole






Find similar products Choose and modify the attributes above to find similar products.

Product Overview

The LH1540AT is a Solid State Relay with SPST-NO contact and through hole terminals. This 1-form-A relay is constructed using a GaAIAs LED for actuation control and an integrated monolithic die for the switch output. The die, fabricated in a high voltage dielectrically isolated technology, is comprised of a photodiode array, switch control circuitry and MOSFET switches. It employs current-limiting circuitry which meets FCC 68.302 and other regulatory voltage surge requirements when overvoltage protection is provided. These relay incorporate current limiting which will clamp the load current at a predetermined value preventing damage to the device from transients and load short circuits. The devices are capable of switching currents from nanoamps to hundreds of milliamps, making them ideal for a wide variety of switching applications. Optocouplers with high voltage MOSFET outputs that duplicate the function of electromechanical relays.
  • Current limit protection
  • High surge capability
  • Clean bounce-free switching
  • Low power consumption
  • High reliability monolithic detector
  • No arcing or noise
  • Immune to shock
  • 550mW Power dissipation
  • 2ms Turn-on/off maximum time
  • -40 to 85°C Ambient temperature range


Communications & Networking, Sensing & Instrumentation, Automation & Process Control

Alternatives for LH1540AT

Compare Selected Show all similar products
Manufacturer Part Number
Order Code
Manufacturer / Description
Price For
Restricted Item Add
Best Seller

1,424 In stock Need more?

538 available for 4 - 6 business days delivery
886 available for 5 - 7 business days delivery


Pricing is unavailable. Please contact customer services.

Price for:
Multiple: 1 Minimum: 1
Quantity Price Your Price
1+ Rs.301.07
Promotional price
Contract Price
Web only price
Web only contract price
10+ Rs.264.68
Promotional price
Contract Price
Web only price
Web only contract price

Pricing is unavailable. Please contact customer services.

No longer stocked:: No Longer Manufactured::
Add to Basket Back Order Pre-Order
Restricted Item
Enter Your Part No/Line Note
Total Price:
Total Price: ( )
Total Price: --

Customer Reviews

Customer Q&A Exchange


Like to see information about this product from other customers?

 Read discussions, blogs, documents from our community members.


Select document type(s) you want to see and click “Apply Filters” button
Post a question to one of our experts or start a discussion and get responses from supplier experts and fellow engineers in our community.