Amphenol ICC 68443-136 Rectangular Connector Header – Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 68443-136 is a through-hole rectangular connector header with 36 positions at 0.100" (2.54mm) pitch, designed for board-to-board applications. This BERGSTIK® II series component features male pins with gold-plated phosphor bronze contacts and is classified as Active product status. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to inventory constraints, design flexibility, or application-specific performance needs.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	36
Pitch – Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Contact Length – Mating	0.230" (5.84mm)
Contact Length – Post	0.425" (10.80mm)
Insulation Height	0.100" (2.54mm)
Contact Finish – Mating	Gold or Gold, GXT™
Contact Material	Phosphor Bronze
Material Flammability Rating	UL94 V-0
Insulation Color	Black
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 68443-136 are qualified based on the following critical parameters that must remain constant or compatible:

Connector Type & Contact Type: All substitutes are headers with male pins
Number of Positions & Pitch: All maintain 36 positions at 0.100" (2.54mm) pitch
Mounting & Termination: All are through-hole, solder-terminated
Contact Length – Mating: All maintain 0.230" (5.84mm) mating contact length
Insulation Height: All maintain 0.100" (2.54mm)
Contact Material: All use phosphor bronze
Flammability Rating: All meet UL94 V-0
Insulation Color: All are black

Substitutes are differentiated by:

Contact Length – Post (varies from 0.115" to 0.600"): Determines board thickness compatibility and stacking height
Contact Finish – Mating (Gold vs. Tin): Affects corrosion resistance and mating force characteristics
Insulation Material (varies by manufacturer): Affects thermal and chemical resistance
Operating Temperature Range: Defines thermal performance envelope
RoHS Compliance Status: Regulatory requirement for specific applications

Parameter Comparison

Parameter	68443-136 (Amphenol ICC)	8-146274-6 (TE Connectivity)	TSW-136-09-G-S (Samtec)	TSW-136-09-T-S (Samtec)	TSW-136-10-G-S (Samtec)	TSW-136-10-T-S (Samtec)	TSW-136-11-G-S (Samtec)	TSW-136-22-T-S (Samtec)	TSW-136-23-SM-S (Samtec)
Manufacturer	Amphenol ICC (FCI)	TE Connectivity AMP	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.
Series	BERGSTIK® II	AMPMODU Mod II	TSW	TSW	TSW	TSW	TSW	TSW	TSW
Connector Type	Header	Header, Breakaway	Header	Header	Header	Header	Header	Header	Header
Number of Positions	36	36	36	36	36	36	36	36	36
Pitch – Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Length – Mating	0.230" (5.84mm)	0.318" (8.08mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)
Contact Length – Post	0.425" (10.80mm)	0.125" (3.18mm)	0.400" (10.16mm)	0.400" (10.16mm)	0.500" (12.70mm)	0.500" (12.70mm)	0.600" (15.24mm)	0.300" (7.62mm)	0.115" (2.92mm)
Overall Contact Length	0.755" (19.18mm)	0.533" (14.65mm)	0.730" (18.54mm)	0.730" (18.54mm)	0.830" (21.08mm)	0.830" (21.08mm)	0.930" (23.62mm)	0.630" (16.00mm)	0.445" (11.30mm)
Insulation Height	0.100" (2.54mm)	0.090" (2.29mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Finish – Mating	Gold or Gold, GXT™	Tin	Gold	Tin	Gold	Tin	Gold	Tin	Gold
Contact Finish Thickness – Mating	30.0µin (0.76µm)	100.0µin (2.54µm)	10.0µin (0.25µm)	–	10.0µin (0.25µm)	–	10.0µin (0.25µm)	–	30.0µin (0.76µm)
Contact Material	Phosphor Bronze	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	–	Liquid Crystal Polymer (LCP)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
Operating Temperature	–	-65°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 125°C
Current Rating (Amps)	–	3A	–	–	–	–	–	–	–
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Color	Black	Black	Black	Black	Black	Black	Black	Black	Black
RoHS Status	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Substitute – TE Connectivity 8-146274-6

The 8-146274-6 is the manufacturer-recommended primary substitute. It maintains core electrical and mechanical compatibility with 36 positions at 0.100" pitch and through-hole solder termination. This part achieves RoHS compliance and provides a 3A current rating specification. The primary design difference is the contact length post of 0.125" (3.18mm), which is significantly shorter than the original 68443-136 at 0.425" (10.80mm). This shorter post length accommodates thinner PCB assemblies. The insulation height is 0.090" (2.29mm) versus 0.100" (2.54mm) on the original. The contact mating length of 0.318" (8.08mm) exceeds the original 0.230" (5.84mm), providing deeper mating engagement. Tin finish on mating contacts differs from the gold finish of the original part.

Samtec TSW Series Substitutes

The Samtec TSW series provides multiple post length options to accommodate various PCB thicknesses and application requirements:

TSW-136-09-G-S and TSW-136-09-T-S: Post length 0.400" (10.16mm). Gold and tin finish variants. Operating temperature to 125°C (gold) or 105°C (tin). Overall contact length 0.730" (18.54mm).
TSW-136-10-G-S and TSW-136-10-T-S: Post length 0.500" (12.70mm). Gold and tin finish variants. Operating temperature to 125°C (gold) or 105°C (tin). Overall contact length 0.830" (21.08mm).
TSW-136-11-G-S: Post length 0.600" (15.24mm). Gold finish. Operating temperature to 125°C. Overall contact length 0.930" (23.62mm). Longest post option for maximum board thickness accommodation.
TSW-136-22-T-S: Post length 0.300" (7.62mm). Tin finish. Operating temperature to 105°C. Overall contact length 0.630" (16.00mm). Shortest TSW option for thin PCB applications.
TSW-136-23-SM-S: Post length 0.115" (2.92mm). Mixed finish (gold mating, tin post). Operating temperature to 125°C. Overall contact length 0.445" (11.30mm). Shortest overall length option.

All Samtec TSW parts achieve ROHS3 compliance and maintain phosphor bronze contacts with PBT insulation. Gold-finished variants support -55°C to 125°C operation; tin-finished variants support -55°C to 105°C operation.

Regulatory Compliance Consideration

The original 68443-136 is RoHS non-compliant. All substitute parts listed are RoHS compliant (either RoHS or ROHS3). Applications requiring RoHS non-compliant components must retain the original 68443-136. Applications with RoHS compliance requirements must select from the substitute list.

Frequently Asked Questions (FAQ)

Q: Can TSW-136-09-G-S directly replace 68443-136 in existing designs?

A: Direct replacement depends on PCB thickness and mating depth requirements. The TSW-136-09-G-S maintains the same 0.230" (5.84mm) mating contact length as the original. However, the post length is 0.400" (10.16mm) versus the original 0.425" (10.80mm), a difference of 0.025" (0.64mm). This minor difference is typically accommodated by standard PCB thickness tolerances. Gold finish on both parts ensures equivalent corrosion resistance. Verify PCB hole depth and component clearance before substitution.

Q: What is the difference between gold and tin finish options in the TSW series?

A: Gold-finished variants (TSW-136-09-G-S, TSW-136-10-G-S, TSW-136-11-G-S) provide superior corrosion resistance and support operating temperatures to 125°C. Tin-finished variants (TSW-136-09-T-S, TSW-136-10-T-S, TSW-136-22-T-S) are cost-effective alternatives with operating temperature limited to 105°C. Contact finish thickness on gold variants is 10.0µin (0.25µm) on mating surfaces and 3.00µin (0.076µm) on posts. Tin finish thickness is not specified for most variants. Gold finish is recommended for applications requiring extended temperature range or enhanced reliability in corrosive environments.

Q: How do I select the correct post length for my application?

A: Post length determines the maximum PCB thickness the connector can accommodate. Standard PCB thickness is 0.062" (1.57mm). The post length must exceed the PCB thickness to allow solder joint formation on the opposite side. Common selections: TSW-136-22-T-S (0.300" post) for thin PCBs; TSW-136-09-G-S or TSW-136-09-T-S (0.400" post) for standard PCBs; TSW-136-10-G-S or TSW-136-10-T-S (0.500" post) for thicker assemblies; TSW-136-11-G-S (0.600" post) for maximum thickness accommodation. The original 68443-136 at 0.425" (10.80mm) post length accommodates standard PCB thicknesses with margin.

Q: Is the TE Connectivity 8-146274-6 suitable for high-temperature applications?

A: The 8-146274-6 supports operating temperatures from -65°C to 105°C. This range is narrower than Samtec TSW gold-finished variants, which support -55°C to 125°C. For applications requiring operation above 105°C, select TSW-136-09-G-S, TSW-136-10-G-S, or TSW-136-11-G-S. The 8-146274-6 is suitable for standard industrial temperature ranges but not for extended high-temperature environments.

Q: What is the significance of the insulation material difference between parts?

A: The original 68443-136 does not specify insulation material. The TE Connectivity 8-146274-6 uses Liquid Crystal Polymer (LCP), which provides superior thermal and chemical resistance. Samtec TSW series parts use Polybutylene Terephthalate (PBT), a standard engineering plastic with good thermal stability. Both materials meet UL94 V-0 flammability requirements. LCP offers higher temperature capability and lower moisture absorption; PBT provides cost-effectiveness and adequate performance for most applications. Material selection does not affect electrical compatibility but may influence long-term reliability in extreme environments.

Q: Are all substitute parts available in the same packaging as the original?

A: The original 68443-136 is supplied in bulk packaging. Most Samtec TSW variants are also supplied in bulk. The TE Connectivity 8-146274-6 is supplied in bulk. TSW-136-23-SM-S packaging is not specified in the provided data. Confirm packaging availability with the supplier before finalizing part selection, particularly for high-volume orders requiring specific packaging formats.

Q: Can I mix gold and tin finish connectors in the same assembly?

A: Mixing gold and tin finishes in the same assembly is not recommended. Different contact finishes have different mating force characteristics and wear properties. Consistent finish across all connectors in an assembly ensures uniform mating performance and contact reliability. Select either all gold-finished parts or all tin-finished parts for a given design.

Q: What is the current rating for the TSW series connectors?

A: Current rating is not specified for most TSW series parts in the provided data. The TE Connectivity 8-146274-6 specifies 3A per contact. For applications requiring specific current ratings, contact the manufacturer directly or consult detailed datasheets. Standard 0.100" pitch headers typically support 1–3A per contact depending on contact material, finish, and mating force.

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