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Amphenol 7731 Series

217 variants · Amphenol

About the Amphenol 7731 Series

The Amphenol 7731 Series series groups 217 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. The listed variants share a common applications of -, contact finish - post of Tin and contact finish thickness - post of 78.7µin (2.00µm). Variants differ by connector type, contact finish - mating and contact finish thickness - mating, so you can match the exact connector type your application requires using the selection guide below.

Select a variant by

Connector type
Header · Header, Breakaway
Contact finish - mating
Gold or Gold, GXT™ · Tin
Contact finish thickness - mating
15.0µin (0.38µm) · 30.0µin (0.76µm) · 78.7µin (2.00µm)
Contact length - mating
0.230\" (5.84mm) · 0.374\" (9.50mm)
Contact length - post
0.095\" (2.41mm) · 0.120\" (3.05mm)
Operating temperature
-65°C~125°C · -65°C~130°C
Overall contact length
0.425\" (10.80mm) · 0.450\" (11.43mm) · 0.594\" (15.09mm)
Package
Bag · Bulk

Shared specifications

Applications
-
Contact finish - post
Tin
Contact finish thickness - post
78.7µin (2.00µm)
Contact material
Phosphor Bronze
Contact shape
Square
Current rating
3A per Contact
Fastening type
Push-Pull
Features
-
Gender
Male Pin
Ingress protection
-
Insulation color
Black
Insulation height
0.100\" (2.54mm)

Variant comparison

Parameter77313-818-12LF77313-452-04LF77311-101-09LF77311-101-03LF77311-101-04LF77311-101-05LF
Connector typeHeader, BreakawayHeader, BreakawayHeaderHeaderHeaderHeader
Contact finish - matingGold or Gold, GXT™TinGold or Gold, GXT™Gold or Gold, GXT™Gold or Gold, GXT™Gold or Gold, GXT™
Contact finish thickness - mating15.0µin (0.38µm)78.7µin (2.00µm)30.0µin (0.76µm)30.0µin (0.76µm)30.0µin (0.76µm)30.0µin (0.76µm)
Contact length - mating0.230\" (5.84mm)0.374\" (9.50mm)0.230\" (5.84mm)0.230\" (5.84mm)0.230\" (5.84mm)0.230\" (5.84mm)
Contact length - post0.120\" (3.05mm)0.120\" (3.05mm)0.095\" (2.41mm)0.095\" (2.41mm)0.095\" (2.41mm)0.095\" (2.41mm)
Operating temperature-65°C~130°C-65°C~130°C-65°C~125°C-65°C~125°C-65°C~125°C-65°C~125°C
Overall contact length0.450\" (11.43mm)0.594\" (15.09mm)0.425\" (10.80mm)0.425\" (10.80mm)0.425\" (10.80mm)0.425\" (10.80mm)
PackageBagBulkBulkBulkBulkBulk

Request a quote on any Amphenol 7731 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 Amphenol 7731 Series variants differ?
Amphenol 7731 Series part numbers differ by connector type, contact finish - mating, contact finish thickness - mating and contact length - mating. Use the selection guide above to pick by connector type.
How many Amphenol 7731 Series part numbers are listed?
217 Amphenol 7731 Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for Amphenol 7731 Series?
Request a quote (RFQ) for any Amphenol 7731 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.

All variants