Cephos Relays Limited

sub-contract electronics manufacturer

Obsolete Signal Relay Alternatives

Manufactured in the UK

Modern electronics manufacturing faces a volatile landscape driven by component obsolescence and the rising threat of counterfeit parts.

When critical parts like signal relays reach end-of-life status, companies must often navigate expensive PCB re-designs, which can trigger complex technical and financial hurdles.

Solution: Cephos Relays – Direct and “Drop-In” Replacements

The most straightforward strategy for relay replacement is finding a form, fit, and function (FFF) equivalent. This involves selecting a substitute that matches the original part’s electrical characteristics and mechanical footprint, which minimises the need for system-wide changes

Cephos Relays can assist with selecting the ideal alternative for those hard to find obsolete originals

Cephos Relays C-BT53 & CH-BT53

Available from stock

Solution:  Drop-In Cephos Relays BT53 type replacements

2P pole C/O DPDT configuration
small signal telecommunication relays

Fujitsu BT53 type relays
Panasonic DF2 relays
Omron G5A-234P relays
Fujitsu FBR46 relays

Available with 5V, 12V & 24V coil voltages

Also known as BT53/1 (5V), BT53/3 (12V) and BT53/5 (24V) 

Cephos Relays C-DS4E & CH-DS4E

Available from stock

Solution:  Drop-In Cephos Relays DS4E type replacements

4P pole C/O 4PDT configuration
small signal telecommunication relays

Panasonic DS4E relays
Omron G6A-434P relays
Fujitsu RA4-12W relays
IMO EN4-CW relays

Available with 5V, 12V & 24V coil voltages

Also known as DS4E/1 (5V), DS4E/3 (12V) and DS4E/5 (24V) 

UK Based manufacture of alternative drop-in replacement relays for those hard to find obsolete originals

Panasonic

Omron

TE / Axicom

Fujitsu ...... and more

Greenwich Instruments NVRAM

UK based manufacturer of Greenwich Instruments Non volatile RAM

GR281 (2K)

GR881 (8K)

GR3281 (32K)

Panasonic TK1 relay

This obsolete small signal relay with a single pole SPDT changeover configuration can be replaced with a Cephos Relay:

C-TK1

Panasonic TQ4 relay

This obsolete small signal relay with a four pole 4PDT changeover configuration can be replaced with a Cephos Relay:

C-TQ4 or a CH-TQ4

Panasonic NF4EB relay

Omron LZN4 relay

Zettler AZ7-4C relay

These obsolete small signal relays with a four pole 4PDT changeover configuration can be replaced with a Cephos Relay:

C-NF4EB or a CH-NF4EB

TE / Axicom MT4 relay

Siemens V23104 relay

These obsolete small signal relays with a four pole 4PDT changeover configuration can be replaced with a Cephos Relay:

C-MT4 or a CH-MT4

Do you need a fast relay quote?

We are UK based and ship direct, worldwide.

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