C-TK1 Relay Module

The C-TK1 relay module is manufactured by Cephos Electronic Circuits Ltd. in the UK – an alternative relay module to replace a classic telecomms. small signal relays that has not been manufactured for several years and is now obsolete and very difficult to source.

The original version of this obsolete relays is the Panasonic TK1 relay.

The Cephos C-TK1 relay module is a drop-in replacement for this popular Panasonic TK1  and it is fitted with the TE / Axicom IM type small signal relay, the general specification is detailed below together with a downloadable datasheet.

This is a single pole telecom / signal relay, polarised, 1 pole changeover / 1 Form C / SPDT

The Cephos C-TK1 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)

Technical data and specification

Maximum switching power: 60W / 62.5VA
Maximum switching voltage: 220Vdc / 250Vac
Maximum switching current 2A
Contacts: Pd/Ru + Au covered
Low coil power: 5 – 12V: 140mW / 24V: 200mW 

Module dimensions

Operation parameters

Pick-up voltage Vdc(max): 3.75
Drop-out voltage Vdc(min): 0.5
Coil resistance (ohms): 178 x (1 +/- 10%)
Nominal power (mW approx): 140
Maximum operating voltage Vmax: 12.1

Pick-up voltage Vdc(max): 9.0
Drop-out voltage Vdc(min): 1.2
Coil resistance (ohms): 1028 x (1 +/- 10%)
Nominal power (mW approx): 140
Maximum operating voltage Vmax: 28.9

Pick-up voltage Vdc(max): 18.0
Drop-out voltage Vdc(min): 2.4
Coil resistance (ohms): 2880 x (1 +/- 10%)
Nominal power (mW approx): 200
Maximum operating voltage Vmax: 48.5

C-TK1 datasheet

Downloadable datasheet detailing the obsolete versions and operating data
DOWLOAD

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