
TSB41300
Littelfuse
2 variants · Littelfuse
The Littelfuse TSB4 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 mounting of Chassis Mount, package of Bulk and supply voltage of 120 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. All listed Littelfuse TSB4 Series part numbers are active and orderable.
| Parameter | TSB41300 | TSB422 |
|---|---|---|
| Delay time | Fixed, 300 Sec | 0.5 Sec to 60 Sec |
| Timing adjustment method | Fixed | External Resistor |
Request a quote on any Littelfuse TSB4 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

Littelfuse

Littelfuse