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Littelfuse Inc. MCR1 Series

5 variants · Littelfuse Inc.

About the Littelfuse Inc. Littelfuse Inc. MCR1 Series series

The Littelfuse Inc. Littelfuse Inc. MCR1 Series series groups 5 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. The listed variants share a common current - gate trigger (Igt) of 200 µA, current - off state of 10 µA and operating temperature of -40°C ~ 110°C. Variants differ by case, current - hold (Ih) and current - non rep. surge 50, 60Hz, so you can match the exact case your application requires using the selection guide below.

Select a variant by

Case
TO-225AA, TO-126-3 · TO-252-3, DPak (2 Leads + Tab), SC-63
Current - hold (Ih)
5 mA · 6 mA
Current - non rep. surge 50, 60Hz
25A @ 60Hz · 100A @ 60Hz
Current - on state (It (AV))
2.55 A · 7.6 A
Current - on state (It (RMS))
4 A · 12 A
Mounting type
Surface Mount · Through Hole
Package
Bulk · Tape & Reel (TR); Cut Tape (CT)
Voltage - off state
400 V · 600 V

Variant comparison

ParameterMCR106-6GMCR12DSMT4G
CaseTO-225AA, TO-126-3TO-252-3, DPak (2 Leads + Tab), SC-63
Current - hold (Ih)5 mA6 mA
Current - non rep. surge 50, 60Hz25A @ 60Hz100A @ 60Hz
Current - on state (It (AV))2.55 A7.6 A
Current - on state (It (RMS))4 A12 A
Mounting typeThrough HoleSurface Mount
PackageBulkTape & Reel (TR); Cut Tape (CT)
Voltage - off state400 V600 V

Shared specifications

Current - gate trigger (Igt)
200 µA
Current - off state
10 µA
Operating temperature
-40°C ~ 110°C
SCR type
Sensitive Gate
Voltage - gate trigger (Vgt)
1 V

Request a quote on any Littelfuse Inc. MCR1 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

Frequently asked questions

How do the Littelfuse Inc. Littelfuse Inc. MCR1 Series variants differ?
Littelfuse Inc. MCR1 Series part numbers differ by case, current - hold (Ih), current - non rep. surge 50, 60Hz and current - on state (It (AV)). Use the selection guide above to pick by case.
How many Littelfuse Inc. Littelfuse Inc. MCR1 Series part numbers are listed?
5 Littelfuse Inc. Littelfuse Inc. MCR1 Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for Littelfuse Inc. Littelfuse Inc. MCR1 Series?
Request a quote (RFQ) for any Littelfuse Inc. MCR1 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.

All variants