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Molex 42878 Series

13 variants · Molex

About the Molex 42878 Series

The Molex 42878 Series series groups 13 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Variants differ by package, features and number of positions (Contacts), so you can match the exact package your application requires using the selection guide below. All listed Molex 42878 Series part numbers are active and orderable.

Select a variant by

Package
Box · Tray
Features
Board Lock · Board Lock, Keyed, Panel Stops · Board Lock, Panel Stops
Number of positions (Contacts)
4p4c (RJ9, RJ10, RJ22) · 6p2c (RJ11) · 6p4c (RJ11, RJ14) · 6p6c (RJ11, RJ12, RJ14, RJ25) · 8p8c (RJ45, Ethernet) · 8p10c

Variant comparison

Parameter42878-100142878100342878421842878621842878-6360428786362
PackageBoxTrayTrayTrayBoxTray
FeaturesBoard LockBoard LockBoard LockBoard Lock
Number of positions (Contacts)8p10c4p4c (RJ9, RJ10, RJ22)6p6c (RJ11, RJ12, RJ14, RJ25)6p4c (RJ11, RJ14)

Request a quote on any Molex 42878 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 Molex 42878 Series variants differ?
Molex 42878 Series part numbers differ by package, features and number of positions (Contacts). Use the selection guide above to pick by package.
How many Molex 42878 Series part numbers are listed?
13 Molex 42878 Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for Molex 42878 Series?
Request a quote (RFQ) for any Molex 42878 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.

All variants