Amphenol ICC 78998-136 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 78998-136 is a rectangular connector header for through-hole mounting with 36 positions at 0.100" (2.54mm) pitch. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The BERGSTIK® II series connector provides board-to-board connectivity with unshrouded, push-pull fastening in a single-row configuration. Identifying compatible substitutes ensures design continuity and supply chain flexibility for applications requiring 36-position 2.54mm pitch headers.

Key Parameters

Parameter	Value
Manufacturer Part Number	78998-136
Manufacturer	Amphenol ICC (FCI)
Category	Rectangular Connectors
Connector Type	Header
Contact Type	Male Pin
Number of Positions	36
Number of Rows	1
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Shrouding	Unshrouded
Style	Board to Board
Contact Material	Phosphor Bronze
Contact Shape	Square
Insulation Height	0.100" (2.54mm)
Insulation Color	Black
Material Flammability Rating	UL94 V-0
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 78998-136 is determined by strict adherence to the following core parameters:

Critical Matching Parameters:

Number of Positions: 36
Pitch - Mating: 0.100" (2.54mm)
Connector Type: Header
Contact Type: Male Pin
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Shrouding: Unshrouded
Contact Shape: Square
Insulation Height: 0.100" (2.54mm)
Material Flammability Rating: UL94 V-0

Allowable Variations:

Contact Length - Mating and Post (mechanical fit dependent on application)
Overall Contact Length (application-specific requirements)
Contact Finish composition (Gold, Tin, or combinations)
Contact Finish Thickness (within industry standards)
Contact Material (Phosphor Bronze or Copper Alloy)
Insulation Material (varies by manufacturer)
Operating Temperature range (when specified)
Current Rating (when specified)
RoHS Compliance status (regulatory requirement dependent)

The substitute parts listed below maintain all critical matching parameters while accommodating manufacturer-specific design variations in contact geometry and material specifications.

Parameter Comparison

Parameter	78998-136	68033-136HLF	PBC36SAAN	PBC36SABN	PEC36SAAN	PEC36SABN	PGC36SAAN
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Sullins	Sullins	Sullins	Sullins	Sullins
Number of Positions	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)
Number of Rows	1	1	1	1	1	1	1
Connector Type	Header	Header	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Style	Board to Board	Board to Board	Board to Board or Cable	Board to Board or Cable	Board to Board or Cable	Board to Board or Cable	Board to Board or Cable
Contact Shape	Square	Square	Square	Square	Square	Square	Square
Insulation Height	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)
Insulation Color	Black	Black	Black	Black	Black	Black	Black
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Copper Alloy
Contact Finish - Mating	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold	Gold	Tin	Tin	Gold
Contact Length - Mating	0.175" (4.45mm)	0.136" (3.45mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)
Contact Length - Post	0.155" (3.94mm)	0.473" (12.01mm)	0.120" (3.05mm)	0.230" (5.84mm)	0.120" (3.05mm)	0.230" (5.84mm)	0.120" (3.05mm)
Overall Contact Length	0.430" (10.92mm)	0.708" (17.98mm)	0.450" (11.43mm)	0.560" (14.22mm)	0.450" (11.43mm)	0.560" (14.22mm)	0.450" (11.43mm)
Operating Temperature	Not specified	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	Not specified
Current Rating (Amps)	Not specified	3A	3A	3A	3A	3A	3A
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitute - Amphenol ICC 68033-136HLF: The 68033-136HLF is the direct Amphenol ICC equivalent with active product status. This part maintains manufacturer continuity and is RoHS Compliant. The extended contact post length (0.473") accommodates deeper PCB stack-ups compared to the original 78998-136. Selection of this part is appropriate for applications requiring Amphenol ICC sourcing and RoHS compliance.

Sullins Connector Solutions Alternatives: The Sullins PBC36SAAN, PBC36SABN, PEC36SAAN, PEC36SABN, and PGC36SAAN parts are all ROHS3 Compliant with active product status. These parts feature varying contact post lengths and finish compositions:

PBC36SAAN and PEC36SAAN: Short post length (0.120"), suitable for standard PCB thicknesses
PBC36SABN and PEC36SABN: Extended post length (0.230"), accommodating thicker PCB assemblies
PGC36SAAN: Copper Alloy contacts with gold finish, alternative material composition

Contact finish selection between Gold (PBC, PGC series) and Tin (PEC series) depends on application requirements and solderability specifications. All Sullins parts carry 3A current rating and -65°C to 125°C operating temperature specification.

Compliance Considerations: All substitute parts listed are RoHS Compliant or ROHS3 Compliant, addressing the non-compliant status of the obsolete 78998-136. Selection should prioritize active product status parts to ensure long-term supply availability.

Frequently Asked Questions (FAQ)

Q: Can I directly replace the 78998-136 with any of these substitute parts?

A: All listed substitute parts maintain the critical electrical and mechanical parameters: 36 positions, 0.100" (2.54mm) pitch, through-hole solder termination, push-pull fastening, and unshrouded configuration. Physical fit depends on contact length specifications. Verify that the contact post length accommodates your PCB thickness and that the overall contact length is compatible with your mating connector depth.

Q: What is the difference between the Amphenol ICC 68033-136HLF and the Sullins alternatives?

A: The 68033-136HLF maintains Amphenol ICC sourcing and is the direct equivalent. Sullins parts offer alternative contact geometries and material compositions. The 68033-136HLF features an extended post length (0.473") compared to most Sullins variants (0.120" or 0.230"), which may affect compatibility with existing PCB designs.

Q: Why do some parts have different contact post lengths?

A: Contact post length determines how deeply the connector penetrates the PCB. Shorter posts (0.120") suit standard PCB thicknesses, while longer posts (0.230" or 0.473") accommodate thicker assemblies or multiple stacked boards. Select based on your specific PCB stack-up requirements.

Q: What is the difference between Gold and Tin contact finishes?

A: Gold finishes (PBC36SAAN, PGC36SAAN) provide superior corrosion resistance and are preferred for low-signal applications. Tin finishes (PEC36SAAN, PEC36SABN) offer cost efficiency and are suitable for standard soldering processes. Both meet UL94 V-0 flammability requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. The 68033-136HLF is RoHS Compliant, and all Sullins parts are ROHS3 Compliant. The original 78998-136 is RoHS non-compliant. Substitution with any listed part addresses RoHS compliance requirements for new designs or production updates.

Q: What is the current rating for these connectors?

A: The 68033-136HLF and all Sullins substitute parts are rated for 3A per contact. The original 78998-136 does not specify a current rating. Verify that 3A per contact meets your application requirements.

Q: Can I use the breakaway variants (PBC36SAAN, PBC36SABN, PEC36SAAN, PEC36SABN) in place of non-breakaway headers?

A: Breakaway capability is an additional feature that does not prevent use in standard board-to-board applications. These parts are compatible with non-breakaway applications and offer the flexibility of individual pin separation if required.

Q: What operating temperature range should I specify?

A: The 68033-136HLF and all Sullins parts operate from -65°C to 125°C. The original 78998-136 does not specify an operating temperature range. Select based on your application's thermal requirements within this range.

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