Telecom
Littelfuse’s Telecom Series is designed to protect against short duration high voltage fault currents (power induction surge) typically found in telecom applications. The 250R Series can help provide protection against damage caused by power cross and power induction surges in the form of chip, surface-mount and radial leaded configurations.
Littelfuse’s Telecom series offers an array of benefits, including: increased design flexibility for engineers, compatible designs with high-volume electronics assembly, improved line balance and suitable for legacy POTS and modern digital communications equipment.
The Telecom Series are used in networking machines and systems such as: modems, phone sets, alarm systems, MDF modules, powered Ethernet systems, LAN/WAN equipment and VoIP (voice over internet protocol) equipment.
TCF250
IHold (A): 0.09, 0.12, 0.145, 0.18
ITrip (A): 0.15, 0.24, 0.29, 0.38
Max Volts (V): 60
TRF250
IHold (A): 0.055, 0.08, 0.11, 0.12, 0.13, 0.145, 0.18, 0.183, 0.184
ITrip (A): 0.16, 0.17, 0.22, 0.24, 0.26, 0.29, 0.65, 0.685, 1
Max Volts (V): 60, 100
250R
IHold (A): 0.08, 0.12, 0.145, 0.18
ITrip (A): 0.16, 0.24, 0.29, 0.65
Max Volts (V): 250
TSL250
IHold (A): 0.08, 0.13
ITrip (A): 0.24, 0.26
Max Volts (V): 60, 80
TS250
IHold (A): 0.13
ITrip (A): 0.26
Max Volts (V): 60
TSV250
IHold (A): 0.13, 0.184
ITrip (A): 0.26, 0.69
Max Volts (V): 60, 100
250S
IHold (A): 0.13
ITrip (A): 0.26
Max Volts (V): 250
TRF600
IHold (A): 0.15, 0.16, 0.25, 0.4
ITrip (A): 0.3, 0.32, 0.85, 1
Max Volts (V): 60, 250
TR600
IHold (A): 0.15
ITrip (A): 0.3
Max Volts (V): 60
TS600
IHold (A): 0.17, 0.2, 0.4
ITrip (A): 0.4, 1
Max Volts (V): 60
TSM600
IHold (A): 0.25, 0.4
ITrip (A): 0.86, 1
Max Volts (V): 250
600R
IHold (A): 0.15, 0.16
ITrip (A): 0.3, 0.32
Max Volts (V): 600
For further information on Littelfuse’s Telecom Series Fuses please call our team today on: 01444 243 452 or email: .(JavaScript must be enabled to view this email address).

Littelfuse
Littelfuse is a global manufacturer of leading technologies in circuit protection, power control, and sensing. Littelfuse products are found in automotive and commercial vehicles, industrial applications, data and telecommunications, medical devices, consumer electronics, and appliances. They partner with customers to design, manufacture, and deliver innovative, high-quality solutions, for a safer, greener, and increasingly connected world—everywhere, every day.
Further information:
You can find further information on Littelfuse using the following links:
Tel: 01444 243 452
Fax: 01444 870 722
Email: enquiries@gdrectifiers.co.uk
