Amphenol ICC 68655-136 Rectangular Connector Header — Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 68655-136 is a through-hole rectangular connector header with 36 positions at 0.100" (2.54mm) pitch, designed for board-to-board applications. This part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production support. The connector features a single-row unshrouded configuration with solder termination and push-pull fastening, suitable for applications requiring 3A current capacity and operating temperatures from -65°C to 125°C.

Substiute Parts

68655-136

Amphenol ICC (FCI)In Stock: 75168655-136 Datasheet

Current PartRFQ

68655-136HLF

Amphenol ICC (FCI)In Stock: 213968655-136HLF Datasheet

DirectRFQ

2336-6211-TG

3MIn Stock: 11222336-6211-TG Datasheet

MFR RecommendedRFQ

8-146274-6

TE Connectivity AMP ConnectorsIn Stock: 31558-146274-6 Datasheet

MFR RecommendedRFQ

929705-06-36-I

3MIn Stock: 1309929705-06-36-I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 68655-136 is determined by the following critical parameters that must remain constant or compatible:

• Pitch and Position Count: 0.100" (2.54mm) pitch with 36 positions in a single row
• Connector Type and Contact Configuration: Header with male pins for board-to-board connection
• Mounting and Termination: Through-hole solder termination
• Electrical Performance: 3A current rating minimum
• Environmental Compliance: UL94 V-0 flammability rating

Substitute parts are grouped into two categories:

Category 1 — Direct Amphenol ICC Equivalent: 68655-136HLF maintains identical mechanical and electrical specifications while offering active product status and RoHS compliance.

Category 2 — Cross-Manufacturer Alternatives: Parts from 3M (2336-6211-TG, 929705-06-36-I) and TE Connectivity (8-146274-6) provide functional equivalence with variations in contact finish, insulation material, and temperature range that remain within acceptable engineering tolerances for standard board-to-board applications.

Parameter Comparison

Engineering Selection Recommendations

For RoHS-Compliant Applications: The 68655-136HLF is the direct replacement, maintaining identical specifications while achieving RoHS compliance and active product status. This part is recommended as the primary substitute for new designs and production continuity.

For Extended Temperature Range (-65°C Lower Limit): Both the 68655-136HLF and 8-146274-6 support the full -65°C lower operating temperature. The 68655-136HLF remains the preferred choice due to specification parity with the original part.

For Cross-Manufacturer Alternatives: The 3M 2336-6211-TG and 929705-06-36-I, along with TE Connectivity 8-146274-6, provide functional equivalence with active product status and UL94 V-0 compliance. Selection among these alternatives depends on supply chain availability and specific application constraints:

• 2336-6211-TG: Operates to -55°C minimum; suitable for applications not requiring the full -65°C lower limit.
• 8-146274-6: Supports -65°C lower limit with tin contact finish; breakaway configuration available.
• 929705-06-36-I: Operates to -40°C minimum with gold contact finish; current rating reduced to 2.5A.

For Legacy System Maintenance: If the original 68655-136 must remain in service, inventory is available (667 pcs), but transition to an active substitute is recommended to ensure long-term supply security.

Frequently Asked Questions (FAQ)

Q: Can the 68655-136HLF be used as a direct drop-in replacement for the 68655-136?

A: Yes. The 68655-136HLF maintains identical mechanical dimensions, electrical ratings, and contact configurations. The primary differences are active product status and RoHS compliance. No PCB redesign or connector interface modification is required.

Q: What is the key difference between the Amphenol ICC substitute and the cross-manufacturer alternatives?

A: The 68655-136HLF is manufactured by the original supplier (Amphenol ICC) and maintains specification parity with the obsolete part. Cross-manufacturer alternatives (3M and TE Connectivity) provide functional equivalence but may differ in contact finish material, insulation composition, and temperature operating ranges. All alternatives meet the core requirements of 36-position, 2.54mm pitch, through-hole solder termination, and UL94 V-0 compliance.

Q: Are there current rating differences among the substitutes?

A: The 929705-06-36-I has a reduced current rating of 2.5A compared to the 3A rating of the main part and other substitutes. This part is suitable only for applications where 2.5A capacity is sufficient.

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

A: The main part and most substitutes feature gold or gold-plated mating contacts, which provide superior corrosion resistance and contact reliability. The 8-146274-6 uses tin finish, which is acceptable for standard board-to-board applications but may have different contact resistance characteristics. Contact finish selection should align with application requirements for signal integrity and environmental exposure.

Q: Do all substitutes support the full -65°C to 125°C operating temperature range?

A: No. The 68655-136HLF matches the full range (-65°C to 125°C). The 8-146274-6 supports -65°C to 105°C. The 2336-6211-TG operates from -55°C to 105°C, and the 929705-06-36-I operates from -40°C to 105°C. Application temperature requirements should determine substitute selection.

Q: Is packaging a consideration when selecting a substitute?

A: The main part packaging is not specified. All substitutes are available in bulk packaging, which is standard for connector headers. Packaging differences do not affect electrical or mechanical compatibility.

Q: What is the MSL rating, and does it affect substitution?

A: All parts, including the main part and substitutes, have MSL 1 (Unlimited), indicating no moisture sensitivity concerns. This parameter does not differentiate substitutes and does not impose storage or handling restrictions.