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TruSemi M34-1 (3332-01)LED Flasher Chip 1Hz

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This low voltage single output LED flashing controller IC can drive up to 3 LEDs simultaneously (max current 25mA). The IC has an in-built RC oscillator circuit, so requires minimum external components. Suitable for use with a range of products from cards and decorations to bicycle and disco lights.

  • Flash rate 1Hz
  • The device is designed for a 3V DC supply
  • Housed in a TO-92 package
  • Operating temperature 0°C to +70°C
LED Driver Type Flashing Controller
Max Switching Frequency 1Hz
Number of LEDs 3
Package/Case TO-92

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*Question functionality currently disabled

31 January 2012 Question by: Rapid Customer | Product code: 82-0030
Q. I need a chip IC similar to this except with a supply voltage of 11-13 V (12 V) Do you have this?
A. No, I'm afraid we do not currently stock anything that meets your requirements.

17 November 2011 Question by: Rapid Customer | Product code: 82-0030
Q. I need a chip IC like this one to flash twice per second. Can you help?
A. Hi Bob Thanks for your question. Unfortunately we do not have a IC that will work at this rate.


Nice little device

Reviewed by: Mr Stephen Donnelly - 06 July 2017
These are very useful for many applications, they can drive many things aside from LEDs, I have used these to switch a transistor/FET to power higher power LEDs and also to switch a relay.