Amphenol ICC 68657-136H Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 68657-136H is a rectangular connector header with 36 positions at 0.100" (2.54mm) pitch, designed for through-hole board-to-board applications. This BERGSTIK® II series connector features unshrouded male pins with solder termination and push-pull fastening. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring compatible interconnect solutions.

Substiute Parts

68657-136H

Amphenol ICC (FCI)In Stock: 94068657-136H Datasheet

Current PartRFQ

821-22-036-10-002101

Mill-Max Manufacturing Corp.In Stock: 835821-22-036-10-002101 Datasheet

MFR RecommendedRFQ

821-22-036-10-003101

Mill-Max Manufacturing Corp.In Stock: 883821-22-036-10-003101 Datasheet

MFR RecommendedRFQ

821-22-036-10-004101

Mill-Max Manufacturing Corp.In Stock: 981821-22-036-10-004101 Datasheet

MFR RecommendedRFQ

MTLW-136-06-F-S-125

Samtec Inc.In Stock: 848MTLW-136-06-F-S-125 Datasheet

MFR RecommendedRFQ

MTLW-136-06-F-S-130

Samtec Inc.In Stock: 806MTLW-136-06-F-S-130 Datasheet

MFR RecommendedRFQ

MTLW-136-06-F-S-145

Samtec Inc.In Stock: 1061MTLW-136-06-F-S-145 Datasheet

MFR RecommendedRFQ

MTLW-136-06-F-S-150

Samtec Inc.In Stock: 1076MTLW-136-06-F-S-150 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 68657-136H is determined by the following critical parameters:

• Connector Configuration: 36 positions, single row, 0.100" (2.54mm) pitch
• Electrical Performance: Gold-plated mating contacts, phosphor bronze material, 5A minimum current rating
• Mechanical Interface: Through-hole solder termination, board-to-board style
• Environmental Compliance: UL94 V-0 flammability rating, MSL 1 rating

Substitute parts are grouped into two categories:

Category 1 - Spring Piston Connectors (Mill-Max 821 Series): Alternative contact technology using spring piston design instead of male pins. These maintain 36-position, 2.54mm pitch configuration with through-hole mounting and gold-plated contacts. Connector type differs but electrical and mechanical compatibility is maintained for applications where piston contact technology is acceptable.

Category 2 - Header Connectors (Samtec MTLW Series): Direct header connector alternatives with identical 36-position, 2.54mm pitch configuration. These maintain male pin contact type and through-hole solder termination. Variations exist in contact length specifications (0.125" to 0.150" mating contact length) to accommodate different PCB thicknesses and application requirements.

Parameter Comparison

Engineering Selection Recommendations

For Direct Header Replacement: The Samtec MTLW series (MTLW-136-06-F-S-125, MTLW-136-06-F-S-130, MTLW-136-06-F-S-145, MTLW-136-06-F-S-150) provides the closest functional equivalence to the 68657-136H. These connectors maintain identical connector type (header), contact type (male pin), pitch (2.54mm), and termination method (solder). All MTLW variants are active products with ROHS3 compliance and UL94 V-0 flammability rating. Selection among MTLW variants depends on required mating contact length: 0.125" for thin PCBs, 0.130" for standard applications, 0.145" for thicker PCBs, and 0.150" for maximum engagement depth.

For Alternative Contact Technology: The Mill-Max 821 series (821-22-036-10-002101, 821-22-036-10-003101, 821-22-036-10-004101) offers spring piston contact technology as an alternative to male pins. These maintain 36-position, 2.54mm pitch configuration with through-hole solder termination and gold-plated contacts. All three variants are active products with ROHS3 compliance. Spring piston technology provides different mating characteristics and may be suitable for applications requiring lower insertion force or different contact engagement profiles.

Compliance Considerations: All substitute parts are ROHS3 compliant and carry MSL 1 rating, addressing modern regulatory requirements. The 68657-136H is RoHS non-compliant, making substitution necessary for new designs subject to RoHS directives. Samtec MTLW series provides specified operating temperature range (-55°C to 125°C), offering broader environmental performance documentation than the main part.

Frequently Asked Questions (FAQ)

Q: Can the Mill-Max 821 series piston connectors directly replace the 68657-136H header?

A: The 821 series maintains electrical and mechanical compatibility through identical 36-position, 2.54mm pitch configuration, through-hole mounting, and solder termination. However, the contact technology differs (spring piston versus male pin). Physical mating interface compatibility depends on the mating connector design. Applications using standard 2.54mm pitch female connectors will accept piston contacts, but connector pairing must be verified for specific designs.

Q: What is the difference between the four Samtec MTLW variants?

A: The MTLW-136 variants differ in mating contact length: 0.125" (MTLW-136-06-F-S-125), 0.130" (MTLW-136-06-F-S-130), 0.145" (MTLW-136-06-F-S-145), and 0.150" (MTLW-136-06-F-S-150). Contact length selection accommodates different PCB thicknesses and application stack-up requirements. All variants maintain identical pitch, position count, and electrical ratings. Selection is based on mechanical fit requirements in the specific application.

Q: Are there compliance differences between substitute options?

A: All substitute parts are ROHS3 compliant with MSL 1 rating. The 68657-136H is RoHS non-compliant, making any substitute part an improvement for regulatory compliance. Samtec MTLW series provides documented operating temperature range (-55°C to 125°C) and UL94 V-0 flammability rating. Mill-Max 821 series does not specify operating temperature or flammability rating in provided documentation.

Q: What is the gold plating thickness difference between parts?

A: The 68657-136H specifies 30.0µin (0.76µm) gold plating on mating contacts. Mill-Max 821 series specifies 20.0µin (0.51µm), and Samtec MTLW series specifies 3.00µin (0.076µm). Thicker plating provides enhanced corrosion resistance and contact durability. Application requirements for contact longevity and environmental exposure determine acceptable plating thickness.

Q: Can I use these substitutes in existing designs without PCB modification?

A: All substitute parts maintain 0.100" (2.54mm) pitch and through-hole solder termination, allowing direct PCB footprint compatibility. However, physical connector body dimensions may differ, requiring verification of mechanical clearance in the application enclosure or assembly. Contact length variations in the Samtec MTLW series affect mating depth and may require connector pairing verification.

Q: Which substitute offers the best long-term availability?

A: All substitute parts are listed as active products with current inventory. Samtec MTLW series and Mill-Max 821 series are both established manufacturers with broad product portfolios. Active product status indicates ongoing production and supply chain support, contrasting with the obsolete 68657-136H.