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Littelfuse THDS Series

3 variants · Littelfuse

About the Littelfuse THDS Series

The Littelfuse THDS Series series groups 3 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common mounting of Chassis Mount, package of Bulk and timing initiate method of Input Voltage, Trigger Signal. Variants differ by delay time, supply voltage and timing adjustment method, so you can match the exact delay time your application requires using the selection guide below. All listed Littelfuse THDS Series part numbers are active and orderable.

Select a variant by

Delay time
1 Sec to 100 Sec · Fixed, 0.25 Sec
Supply voltage
120 VAC · 230 VAC
Timing adjustment method
Fixed · Screwdriver Slot

Shared specifications

Mounting
Chassis Mount
Package
Bulk
Timing initiate method
Input Voltage, Trigger Signal
Type
Solid State Relay

Variant comparison

ParameterTHDS610.25SATHDS431CTHDS410.25SA
Delay timeFixed, 0.25 Sec1 Sec to 100 SecFixed, 0.25 Sec
Supply voltage230 VAC120 VAC120 VAC
Timing adjustment methodFixedScrewdriver SlotFixed

Request a quote on any Littelfuse THDS Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

All variants