Cephos C-MT4 Relay module

The C-MT4 relay module is manufactured by Cephos Electronic Circuits Ltd. in the UK - a relay module to replace certain classic telecomms. small signal relays that have not been manufactured for several years and are now obsolete and very difficult to source.

The more common of these obsolete relays are the Tyco MT4, TE 0-1462032 and Siemens V23104A four pole changeover relays.

The Cephos C-MT4 5V, 12V and 24V coil voltage versions are normally ex-stock and available for immediate shipping, other coil voltages are manufactured to order on a short lead time ( subject to component availability)

The Original Tyco MT4 relay

Tyco MT4 Relay

Tyco MT4 Relay datasheet

The Original Siemens V23104 relay

Panasonic DF2 Relay

The Cephos solution: C-MT4

C-MT4 relay module

With identical pinning and footprint the C-MT4 relay module achieves all of the functionality of the original MT4, 0-1462032 and V23104 relays offering a simple drop in solution, either fitted into an existing pcb dil connector or soldered straight into a printed circuit board.

C-MT4 datasheet

C-MT4 general specification

Dims: 20.32 x 15.24mm

Precision machined pinning

Four pole changeover contacts 4PCO

The C-MT4 relay module is fitted with a polarity selector switch for the on-board Axicom IM relays as the original relay was not polarised.

The IM relay is tested according CECC/IECQ and certified in accordance with IEC/EN 60950 and UL 60950

The Tyco / Axicom IM relay used is a fourth generation slim-line / low profile relay with bifurcated contacts

Tyco Axicom IM relay specification:

Axicom IM Series




RoHS Compliant