How do the Littelfuse Littelfuse TS12 Series variants differ?

Littelfuse TS12 Series part numbers differ by delay time and timing adjustment method. Use the selection guide above to pick by delay time.

How many Littelfuse Littelfuse TS12 Series part numbers are listed?

7 Littelfuse Littelfuse TS12 Series part numbers are listed, each with specifications and a datasheet where available.

How do I get pricing and lead time for Littelfuse Littelfuse TS12 Series?

Request a quote (RFQ) for any Littelfuse TS12 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.

Littelfuse TS12 Series

7 variants · Littelfuse

About the Littelfuse Littelfuse TS12 Series series

The Littelfuse Littelfuse TS12 Series series groups 7 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. The listed variants share a common mounting of Chassis Mount, package of Bulk and supply voltage of 24 VAC. Variants differ by delay time and timing adjustment method, so you can match the exact delay time your application requires using the selection guide below.

Select a variant by

Variant comparison

Parameter	TS1211.5	TS121150	TS1222	TS1224	TS1221	TS12190
Delay time	Fixed, 15 Sec	Fixed, 150 Sec	0.5 Sec to 60 Sec	5 Sec to 600 Sec	0.05 Sec to 3 Sec	Fixed, 90 Sec
Timing adjustment method	Fixed	Fixed	External Resistor	External Resistor	External Resistor	Fixed

Littelfuse TS12 Series

About the Littelfuse Littelfuse TS12 Series series

Select a variant by

Littelfuse TS12 Series

About the Littelfuse Littelfuse TS12 Series series

Select a variant by

Variant comparison

Shared specifications

Frequently asked questions

All variants

TS1211.5

TS121150

TS1221

TS1222

TS1224

TS12190

TS1211.5

TS121150

TS1221

TS1222

TS1224

TS12190