Amphenol ICC 77313-818-34LF Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 77313-818-34LF is an active-status vertical rectangular connector header designed for through-hole mounting applications. This 34-position, 2-row breakaway header operates across -65°C to 130°C and supports 3A per contact. The connector features gold-plated mating contacts on phosphor bronze with tin-plated solder posts, housed in a UL94 V-0 rated thermoplastic insulation body. Substitute parts are identified based on matching core electrical and mechanical parameters: 0.100" (2.54mm) pitch, 34-position configuration, 2-row layout, through-hole solder termination, and push-pull fastening type.

Substiute Parts

77313-818-34LF

Amphenol ICC (FCI)In Stock: 87277313-818-34LF Datasheet

Current PartRFQ

0010897342

MolexIn Stock: 11770010897342 Datasheet

MFR RecommendedRFQ

6-146256-7

TE Connectivity AMP ConnectorsIn Stock: 10496-146256-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following core parameters:

• Connector type: Header, Breakaway
• Contact type: Male Pin
• Position count: 34
• Row configuration: 2 rows
• Mating pitch: 0.100" (2.54mm)
• Row spacing: 0.100" (2.54mm)
• Mounting: Through Hole
• Termination: Solder
• Fastening: Push-Pull
• Shrouding: Unshrouded
• Flammability: UL94 V-0
• MSL rating: 1 (Unlimited)

Both identified substitutes meet these core criteria. Variations in contact length, insulation height, contact material composition, and insulation material type do not preclude substitution when the primary functional parameters align.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status and comply with UL94 V-0 flammability requirements and MSL 1 moisture sensitivity ratings. The 77313-818-34LF and 6-146256-7 share identical mating contact length (0.230" / 5.84mm) and post length (0.120" / 3.05mm) specifications. The Molex 0010897342 exhibits minor variations in contact geometry (0.240" mating length, 0.107" post length) and insulation height (0.090" versus 0.100"), with insulation material specified as glass-filled LCP rather than thermoplastic.

The TE Connectivity 6-146256-7 operates within a narrower temperature range (-65°C to 105°C) compared to the primary part (-65°C to 130°C). The Molex 0010897342 does not specify operating temperature or current rating in the provided data.

Selection should prioritize the TE Connectivity 6-146256-7 when operating temperature range and contact geometry matching are critical design factors. The Molex 0010897342 is suitable for applications where the specified contact geometry variations and unspecified electrical parameters do not conflict with design requirements.

Frequently Asked Questions (FAQ)

Q: What determines if a connector header can substitute for the 77313-818-34LF?

A: Substitution requires matching on connector type (Header, Breakaway), contact type (Male Pin), position count (34), row configuration (2 rows), mating pitch (0.100" / 2.54mm), row spacing (0.100" / 2.54mm), mounting type (Through Hole), termination method (Solder), fastening type (Push-Pull), and shrouding (Unshrouded). All three parts listed meet these criteria.

Q: Are there differences in contact dimensions between the main part and substitutes?

A: Yes. The 77313-818-34LF and 6-146256-7 share identical mating contact length (0.230") and post length (0.120"). The Molex 0010897342 specifies 0.240" mating contact length and 0.107" post length. These variations may affect board layout and mating force characteristics.

Q: What is the significance of insulation material differences?

A: The primary part uses thermoplastic insulation, while both substitutes use Liquid Crystal Polymer (LCP). The Molex part specifies glass-filled LCP. LCP offers superior dimensional stability and chemical resistance compared to standard thermoplastic. Material selection should align with environmental exposure and mechanical stress requirements in the application.

Q: Does the TE Connectivity part have any temperature limitations?

A: The TE Connectivity 6-146256-7 operates from -65°C to 105°C, which is narrower than the primary part's -65°C to 130°C range. Applications requiring operation above 105°C should use the 77313-818-34LF or confirm Molex 0010897342 temperature specifications with the manufacturer.

Q: Are all three parts RoHS compliant?

A: Yes. The primary part is RoHS Compliant. Both substitutes are ROHS3 Compliant, which represents the current RoHS directive iteration and is compatible with RoHS Compliant requirements.

Q: What packaging differences exist between these parts?

A: The 77313-818-34LF is supplied in Bag packaging. Both substitutes are supplied in Bulk packaging. Packaging format may affect handling, storage, and procurement workflows but does not affect electrical or mechanical compatibility.