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Littelfuse THD7 Series

2 variants · Littelfuse

About the Littelfuse THD7 Series

The Littelfuse THD7 Series series groups 2 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common delay time of 1 Sec to 100 Sec, mounting of Chassis Mount and package of Bulk. Variants differ by supply voltage, so you can match the exact supply voltage your application requires using the selection guide below. All listed Littelfuse THD7 Series part numbers are active and orderable.

Select a variant by

Supply voltage
120 VAC · 230 VAC

Shared specifications

Delay time
1 Sec to 100 Sec
Mounting
Chassis Mount
Package
Bulk
Timing adjustment method
External Resistor
Timing initiate method
Input Voltage
Type
Solid State Relay

Variant comparison

ParameterTHD7421ATHD7621C
Supply voltage120 VAC230 VAC

Request a quote on any Littelfuse THD7 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

All variants