Equivalent & Substitute Parts for 68603-136

Part Overview

The Amphenol ICC 68603-136 is a rectangular connector header featuring 36 vertical positions with 0.100" (2.54mm) pitch, designed for through-hole board-to-board applications. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The connector utilizes phosphor bronze contacts with gold or gold GXT™ mating finish, unshrouded design, and push-pull fastening. Active substitute options from multiple manufacturers provide equivalent or enhanced electrical and mechanical performance while maintaining compatibility with standard 2.54mm pitch header applications.

Key Parameters

Parameter	68603-136 Specification
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	36
Number of Rows	1
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Shape	Square
Contact Finish - Mating	Gold or Gold, GXT™
Contact Material	Phosphor Bronze
Insulation Height	0.100" (2.54mm)
Material Flammability Rating	UL94 V-0
Insulation Color	Black
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 68603-136 is determined by strict alignment with the following core parameters:

Critical Matching Parameters:

Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 36
Number of Rows: 1
Connector Type: Header
Contact Type: Male Pin
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Contact Shape: Square
Insulation Height: 0.100" (2.54mm)
Material Flammability Rating: UL94 V-0
Insulation Color: Black

All substitute parts listed maintain these critical parameters. Variations in contact length, contact finish composition, contact material alloy type, insulation material formulation, operating temperature range, current rating, and RoHS compliance status are permitted within the substitution framework, as these do not affect mechanical interchangeability or basic electrical function in standard 2.54mm pitch header applications.

Parameter Comparison

Parameter	68603-136	77311-115-36LF	929705-06-36-I	PBC36SFAN	PEC36SFAN	PEC36SFCN
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)	3M	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions
Series	BERGSTIK® II	BERGSTIK®	929	-	-	-
Product Status	Obsolete	Active	Active	Active	Active	Active
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)
Number of Positions	36	36	36	36	36	36
Contact Type	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
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Contact Length - Mating	0.335" (8.51mm)	0.335" (8.51mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)
Contact Length - Post	0.120" (3.05mm)	0.100" (2.54mm)	0.710" (18.03mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.320" (8.13mm)
Overall Contact Length	0.555" (14.10mm)	0.535" (14.69mm)	1.128" (28.65mm)	0.538" (13.67mm)	0.538" (13.67mm)	0.738" (18.75mm)
Contact Finish - Mating	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold	Gold	Tin	Tin
Contact Material	Phosphor Bronze	Phosphor Bronze	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	-	Thermoplastic	Polybutylene Terephthalate (PBT), Polyester, Glass Filled	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
Operating Temperature	-	-65°C ~ 125°C	-40°C ~ 105°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C
Current Rating (Amps)	-	3A per Contact	2.5A	3A	3A	3A
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS non-compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

77311-115-36LF (Amphenol ICC BERGSTIK®): This part maintains the closest mechanical and electrical alignment with the 68603-136, sharing identical contact length specifications and phosphor bronze construction. Active product status and RoHS compliance provide supply continuity and regulatory alignment. Operating temperature range of -65°C to 125°C and 3A per contact current rating support standard industrial applications. Thermoplastic insulation material offers improved dimensional stability compared to unspecified insulation in the original part.

929705-06-36-I (3M Series 929): This substitute provides active availability with RoHS compliance and breakaway connector capability. Copper alloy contact material and gold finish on both mating and post surfaces deliver enhanced corrosion resistance. Extended post length (0.710") accommodates deeper PCB mounting scenarios. Operating temperature range of -40°C to 105°C and 2.5A current rating are suitable for standard commercial and industrial environments. Glass-filled PBT insulation provides superior mechanical strength.

PBC36SFAN (Sullins Connector Solutions): Active product with ROHS3 compliance and highest inventory availability (4272 pcs). Phosphor bronze contacts with gold mating finish and tin post finish provide cost-effective performance. 3A current rating and -65°C to 125°C operating temperature support demanding applications. Breakaway connector option enables flexible assembly configurations. Contact length specifications closely match the original part.

PEC36SFAN (Sullins Connector Solutions): Highest inventory availability (6328 pcs) among all substitutes. Tin finish on both mating and post surfaces reduces material cost while maintaining electrical performance. ROHS3 compliance and 3A current rating with -65°C to 125°C operating range ensure broad application compatibility. Phosphor bronze construction and PBT insulation provide reliable long-term performance.

PEC36SFCN (Sullins Connector Solutions): Extended post length (0.320") accommodates applications requiring deeper solder pad engagement or elevated mounting heights. Tin finish on both surfaces and ROHS3 compliance align with modern procurement standards. 3A current rating and -65°C to 125°C operating temperature support industrial applications. Suitable for designs where standard post length is insufficient.

Frequently Asked Questions (FAQ)

Q: Can 77311-115-36LF directly replace 68603-136 in existing designs? A: Yes. Both parts share identical pitch (0.100"), position count (36), contact type (male pin), and mounting method (through-hole solder). Contact length specifications are identical (0.335" mating, 0.120" post). The primary difference is product status (active vs. obsolete) and RoHS compliance, which do not affect mechanical or electrical interchangeability.

Q: What is the difference between gold and tin contact finishes in these substitutes? A: Gold finish (77311-115-36LF, 929705-06-36-I, PBC36SFAN) provides superior corrosion resistance and lower contact resistance, preferred for high-reliability applications. Tin finish (PEC36SFAN, PEC36SFCN) offers cost efficiency while maintaining adequate electrical performance for standard industrial applications. Both finishes are compatible with standard PCB assembly processes.

Q: Why do some substitutes have different post lengths? A: Post length variation accommodates different PCB thicknesses and solder pad depths. The original 68603-136 specifies 0.120" post length. Substitutes with 0.100" (77311-115-36LF) or 0.320" (PEC36SFCN) post lengths are mechanically compatible but may require PCB design adjustment. Standard 0.120" post length substitutes (PBC36SFAN, PEC36SFAN) provide direct dimensional compatibility.

Q: Are all substitutes RoHS compliant? A: No. The original 68603-136 is RoHS non-compliant. All active substitutes (77311-115-36LF, 929705-06-36-I, PBC36SFAN, PEC36SFAN, PEC36SFCN) are RoHS or ROHS3 compliant. For applications requiring RoHS non-compliant components, the 68603-136 remains the only option, though supply is limited to existing inventory.

Q: What is the current rating difference between 929705-06-36-I and other substitutes? A: The 929705-06-36-I is rated at 2.5A per contact, while 77311-115-36LF, PBC36SFAN, PEC36SFAN, and PEC36SFCN are rated at 3A per contact. For applications requiring maximum current capacity, the 3A-rated parts are preferred. The 2.5A rating remains adequate for standard signal and low-power applications.

Q: Can I use 929705-06-36-I in applications with operating temperatures below -40°C? A: No. The 929705-06-36-I operating temperature range is -40°C to 105°C. For applications requiring -65°C operation, use 77311-115-36LF, PBC36SFAN, PEC36SFAN, or PEC36SFCN, which all support -65°C to 125°C.

Q: What is the difference between BERGSTIK® II and BERGSTIK® series? A: The 68603-136 belongs to the BERGSTIK® II series (obsolete), while 77311-115-36LF belongs to the BERGSTIK® series (active). Both series use identical 0.100" pitch and 36-position configuration. The series designation reflects product line evolution; mechanical and electrical compatibility is maintained.

Q: Are breakaway connector options compatible with non-breakaway applications? A: Yes. Breakaway connectors (929705-06-36-I, PBC36SFAN, PEC36SFAN, PEC36SFCN) feature segmented designs allowing individual pin removal but maintain full compatibility with standard 36-position header applications. The breakaway feature is optional and does not affect performance in non-breakaway installations.

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