Amphenol ICC 77311-819-36 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 77311-819-36 is a through-hole rectangular connector header with 36 positions at 0.100" (2.54mm) pitch, designed for board-to-board applications. This component features a single-row unshrouded configuration with solder termination and push-pull fastening. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications requiring compatible 36-position 2.54mm pitch headers.

Substiute Parts

77311-819-36

Amphenol ICC (FCI)In Stock: 113677311-819-36 Datasheet

Current PartRFQ

77311-819-36LF

Amphenol ICC (FCI)In Stock: 100277311-819-36LF Datasheet

DirectRFQ

TSW-136-15-G-S

Samtec Inc.In Stock: 834TSW-136-15-G-S Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 77311-819-36 is determined by strict equivalence across the following critical parameters:

• Connector type (Header)
• Contact type (Male Pin)
• Number of positions (36)
• Pitch specification (0.100" / 2.54mm)
• Mounting method (Through Hole)
• Termination type (Solder)
• Board-to-board style configuration
• Unshrouded design
• Square contact geometry

The substitute parts 77311-819-36LF and TSW-136-15-G-S meet these core requirements. Variations in contact finish specifications, contact length tolerances, insulation material composition, and operating temperature ranges do not preclude substitution when the primary functional parameters remain constant.

Parameter Comparison

Engineering Selection Recommendations

The 77311-819-36LF is the direct manufacturer equivalent from Amphenol ICC (FCI), maintaining the BERGSTIK® series designation and identical core connector geometry. This part is currently in active production status with RoHS compliance, making it the primary substitute for obsolete 77311-819-36 applications. The LF designation indicates lead-free post finish (Tin) compared to the original Tin-Lead specification.

The TSW-136-15-G-S from Samtec Inc. provides an alternative cross-manufacturer substitute with equivalent functional parameters. This part features ROHS3 compliance and operates across a slightly narrower temperature range (-55°C to 125°C versus -65°C to 125°C for the 77311-819-36LF). The TSW series uses PBT insulation material and gold plating on both mating and post contacts, differing from the original Tin-Lead post finish.

Selection between 77311-819-36LF and TSW-136-15-G-S depends on regulatory compliance requirements, contact finish specifications, and insulation material compatibility with the target application. Both parts satisfy the core functional requirements for 36-position, 2.54mm pitch through-hole header applications.

Frequently Asked Questions (FAQ)

Q: Can the 77311-819-36LF directly replace the obsolete 77311-819-36 in existing designs?

A: Yes. The 77311-819-36LF maintains identical connector geometry, pitch, position count, and board-to-board configuration. The primary difference is the post contact finish (Tin versus Tin-Lead) and RoHS compliance status. Designs requiring Tin-Lead finish must evaluate the lead-free alternative for solder joint compatibility.

Q: What are the mechanical differences between the Amphenol ICC and Samtec substitutes?

A: Both parts share identical pitch (0.100" / 2.54mm), position count (36), and mounting type (through-hole solder). The TSW-136-15-G-S features slightly different contact length specifications (0.520" mating versus 0.505" for the original) and uses PBT insulation instead of thermoplastic. These variations remain within acceptable tolerances for standard board-to-board applications.

Q: Are there compliance differences between the substitute parts?

A: The 77311-819-36LF is RoHS Compliant with REACH Affected status. The TSW-136-15-G-S is ROHS3 Compliant. The original 77311-819-36 is RoHS non-compliant. Applications subject to RoHS or ROHS3 regulations must use either substitute part.

Q: What is the significance of the contact finish differences?

A: The original part specifies Tin-Lead post finish (150.0µin thickness). The 77311-819-36LF uses Tin post finish (78.7µin thickness). The TSW-136-15-G-S uses Gold post finish (3.00µin thickness). Contact finish affects solder wettability and long-term reliability. Designs must evaluate solder process compatibility with the selected finish specification.

Q: Can the TSW-136-15-G-S be used in applications requiring the original operating temperature range?

A: The TSW-136-15-G-S operates from -55°C to 125°C, while the 77311-819-36LF operates from -65°C to 125°C. Applications requiring operation below -55°C must use the 77311-819-36LF. Applications within the -55°C to 125°C range are compatible with both parts.

Q: What packaging considerations apply to these substitutes?

A: The 77311-819-36 original packaging is not specified. The 77311-819-36LF is supplied in Bag packaging. The TSW-136-15-G-S is supplied in Bulk packaging. Procurement and handling procedures may differ based on packaging format.