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Amphenol 77311 Series

14 variants · Amphenol

About the Amphenol 77311 Series

The Amphenol 77311 Series series groups 14 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common applications of -, connector type of Header and contact material of Phosphor Bronze. Variants differ by contact finish - mating, contact finish - post and contact finish thickness - mating, so you can match the exact contact finish - mating your application requires using the selection guide below. The range mixes active and legacy part numbers, so you can source both current Amphenol 77311 Series variants and discontinued ones from a single page.

Select a variant by

Contact finish - mating
Gold or Gold, GXT™ · Gold, GXT™
Contact finish - post
- · Tin
Contact finish thickness - mating
10.0µin (0.25µm) · 15.0µin (0.38µm) · 30.0µin (0.76µm) · 50.0µin (1.27µm)
Contact finish thickness - post
- · 78.7µin (2.00µm)
Contact length - mating
0.197\" (5.00mm) · 0.230\" (5.84mm)
Contact length - post
0.110\" (2.79mm) · 0.120\" (3.05mm)
Current rating
- · 3A per Contact
Operating temperature
- · -65°C~125°C

Shared specifications

Applications
-
Connector type
Header
Contact material
Phosphor Bronze
Contact shape
Square
Fastening type
Push-Pull
Features
-
Gender
Male Pin
Ingress protection
-
Insulation color
Black
Insulation height
0.100\" (2.54mm)
Insulation material
Thermoplastic
Mated stacking heights
-

Variant comparison

Parameter77311-218-0377311-218-36LF77311-GAE-36LF77311-SAE-36LF77311-518-05LF77311-518-07LF
Contact finish - matingGold or Gold, GXT™Gold or Gold, GXT™Gold, GXT™Gold, GXT™Gold or Gold, GXT™Gold or Gold, GXT™
Contact finish - post--TinTinTinTin
Contact finish thickness - mating50.0µin (1.27µm)50.0µin (1.27µm)30.0µin (0.76µm)15.0µin (0.38µm)10.0µin (0.25µm)10.0µin (0.25µm)
Contact finish thickness - post--78.7µin (2.00µm)78.7µin (2.00µm)78.7µin (2.00µm)78.7µin (2.00µm)
Contact length - mating0.230\" (5.84mm)0.230\" (5.84mm)0.197\" (5.00mm)0.197\" (5.00mm)0.230\" (5.84mm)0.230\" (5.84mm)
Contact length - post0.120\" (3.05mm)0.120\" (3.05mm)0.110\" (2.79mm)0.110\" (2.79mm)0.120\" (3.05mm)0.120\" (3.05mm)
Current rating--3A per Contact3A per Contact3A per Contact3A per Contact
Operating temperature---65°C~125°C-65°C~125°C-65°C~125°C-65°C~125°C

Request a quote on any Amphenol 77311 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 77311 Series variants differ?
Amphenol 77311 Series part numbers differ by contact finish - mating, contact finish - post, contact finish thickness - mating and contact finish thickness - post. Use the selection guide above to pick by contact finish - mating.
How many Amphenol 77311 Series part numbers are listed?
14 Amphenol 77311 Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for Amphenol 77311 Series?
Request a quote (RFQ) for any Amphenol 77311 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.

All variants