Amphenol ICC 77313-101-72 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 77313-101-72 is a through-hole rectangular header connector with 72 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This connector is part of the BERGSTIK® series and features unshrouded male pins with solder termination and push-pull fastening. The part is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

77313-101-72

Amphenol ICC (FCI)In Stock: 102377313-101-72 Datasheet

Current PartRFQ

77313-101-72LF

Amphenol ICC (FCI)In Stock: 79177313-101-72LF Datasheet

DirectRFQ

91618-307BLF

Amphenol ICC (FCI)In Stock: 77791618-307BLF Datasheet

DirectRFQ

2372-6121-TG

3MIn Stock: 11212372-6121-TG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 77313-101-72 is determined by the following critical parameters: 72-position count, 2-row configuration, 0.100" (2.54mm) pitch in both mating and row spacing, through-hole mounting, solder termination, male pin contact type, and push-pull fastening. These parameters define the mechanical and electrical interface requirements.

Two substitute categories exist:

Direct Amphenol ICC Substitutes: Parts maintaining identical position count, pitch, and mounting characteristics within the same manufacturer ecosystem.

Cross-Manufacturer Equivalent: Parts from alternative manufacturers meeting the same functional specifications, including pitch, position count, and mounting type.

Parameter Comparison

Engineering Selection Recommendations

77313-101-72LF (Amphenol ICC): This is the primary direct substitute for the obsolete 77313-101-72. It maintains identical mechanical and electrical specifications including 72 positions, 2-row configuration, 0.100" pitch, through-hole mounting, and push-pull fastening. The LF variant is RoHS compliant and carries active product status. Operating temperature range is -65°C to 130°C with 3A per contact current rating. This part is the recommended replacement for direct compatibility.

2372-6121-TG (3M): This cross-manufacturer equivalent from the 3M 2300 series provides functional compatibility with identical position count, pitch, and through-hole mounting. It maintains the same connector type (header), contact type (male pin), and fastening mechanism (push-pull). Operating temperature range is -55°C to 105°C with 3A current rating. Contact finish thickness on mating surfaces differs slightly (10.0µin versus 30.0µin on the main part). This option is suitable for applications where cross-manufacturer sourcing is acceptable.

91618-307BLF (Amphenol ICC): This part is not a direct substitute due to fundamental differences: it is a receptacle (female socket) rather than a header (male pin), contains only 14 positions instead of 72, and uses surface mount termination instead of through-hole. This part does not meet the substitution criteria for the 77313-101-72.

Frequently Asked Questions (FAQ)

Q: Can the 77313-101-72LF directly replace the obsolete 77313-101-72?

A: Yes. The 77313-101-72LF maintains identical mechanical and electrical interface specifications. Both feature 72 positions in 2 rows at 0.100" pitch, through-hole solder termination, male pin contacts, and push-pull fastening. The LF variant is RoHS compliant and carries active product status.

Q: What are the key differences between the 77313-101-72LF and the 3M 2372-6121-TG?

A: Both parts share identical position count (72), row configuration (2), pitch (0.100"), mounting type (through-hole), and fastening mechanism (push-pull). Differences include manufacturer, operating temperature range (-65°C to 130°C for Amphenol versus -55°C to 105°C for 3M), and contact finish thickness on mating surfaces (30.0µin for Amphenol versus 10.0µin for 3M).

Q: Why is the 91618-307BLF listed as a substitute if it has only 14 positions?

A: The 91618-307BLF is not a functional substitute for the 77313-101-72. It is included in the reference data but does not meet substitution criteria due to different connector type (receptacle versus header), contact type (female socket versus male pin), position count (14 versus 72), and mounting method (surface mount versus through-hole).

Q: Are there compliance considerations when selecting a substitute?

A: The 77313-101-72LF is RoHS compliant, while the original 77313-101-72 is RoHS non-compliant. The 3M 2372-6121-TG is also RoHS non-compliant. All three parts carry UL94 V-0 flammability ratings. Design requirements for RoHS compliance should guide selection between the Amphenol LF variant and the 3M option.

Q: What is the difference between the standard 77313-101-72 and the 77313-101-72LF designation?

A: The LF suffix indicates a lead-free variant. The 77313-101-72LF uses tin-based solder termination compatible with lead-free assembly processes and carries RoHS compliance certification. The original 77313-101-72 uses traditional lead-containing solder and is RoHS non-compliant.