Amphenol ICC 68603-536 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 68603-536 is a rectangular connector header designed for through-hole mounting applications. This connector features a vertical orientation with 36 positions at 0.100" (2.54mm) pitch, utilizing male pin contacts with gold or gold GXT™ mating finish. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility for board-to-board interconnection applications.

Key Parameters

Parameter	Value
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
Insulation Height	0.100" (2.54mm)
Material Flammability Rating	UL94 V-0
Insulation Color	Black
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 68603-536 is determined by strict equivalence across the following critical parameters: connector type (header), contact type (male pin), pitch (0.100" / 2.54mm), number of positions (36), number of rows (1), mounting type (through hole), termination method (solder), fastening type (push-pull), contact shape (square), and insulation height (0.100" / 2.54mm). All identified substitutes maintain these core specifications.

Variations in contact length, contact finish composition, contact finish thickness, current rating, operating temperature range, and RoHS compliance status do not preclude substitution eligibility, as these parameters are application-dependent and do not affect mechanical or electrical mating compatibility at the connector interface.

Parameter Comparison

Parameter	68603-536 (Main)	77311-815-36LF	929705-06-36-I	PBC36SFAN	PEC36SFAN	PEC36SFCN
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)	3M	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions
Product Status	Obsolete	Active	Active	Active	Active	Active
Connector Type	Header	Header	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
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
Number of Rows	1	1	1	1	1	1
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Shape	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)
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
Material Flammability Rating	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
Operating Temperature	Not specified	-65°C ~ 125°C	-40°C ~ 105°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C
Current Rating (Amps)	Not specified	3A per Contact	2.5A	3A	3A	3A
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

All identified substitute parts maintain mechanical and electrical compatibility with the 68603-536 across critical mating parameters. Selection among substitutes should be based on product status and regulatory compliance requirements.

The 77311-815-36LF represents the closest functional equivalent, manufactured by the same supplier (Amphenol ICC) with identical mating contact length and geometry. This part carries active product status and RoHS compliance certification.

The 929705-06-36-I (3M 929 series) and Sullins Connector Solutions variants (PBC36SFAN, PEC36SFAN, PEC36SFCN) all maintain active product status and RoHS compliance. These alternatives differ in contact post length and finish specifications, which are application-dependent considerations. The Sullins parts offer ROHS3 compliance, representing the most current regulatory standard.

For applications requiring RoHS compliance, all substitute options satisfy this requirement. The 68603-536 itself is RoHS non-compliant and should be replaced with any of the listed alternatives in new designs or compliance-sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can the 77311-815-36LF directly replace the 68603-536 in existing designs?

A: Yes. Both parts share identical mating contact length (0.335" / 8.51mm), pitch (0.100" / 2.54mm), 36-position configuration, and square contact geometry. The primary difference is product status: the 68603-536 is obsolete while the 77311-815-36LF is active. The 77311-815-36LF also provides RoHS compliance.

Q: What is the significance of contact post length variation among substitutes?

A: Contact post length affects solder joint formation and PCB hole engagement depth. The 68603-536 specifies 0.120" (3.05mm) post length. The 77311-815-36LF and Sullins PBC36SFAN/PEC36SFAN maintain this specification. The 929705-06-36-I features extended post length (0.710" / 18.03mm), and PEC36SFCN features intermediate post length (0.320" / 8.13mm). Post length selection depends on PCB thickness and solder process requirements.

Q: Are there contact finish compatibility considerations?

A: The 68603-536 specifies gold or gold GXT™ mating finish. The 77311-815-36LF and 929705-06-36-I maintain gold mating finish. The Sullins PEC36SFAN and PEC36SFCN specify tin mating finish. Contact finish does not affect mechanical mating compatibility but may influence corrosion resistance and electrical performance in specific environments. Gold finishes generally provide superior corrosion resistance.

Q: What is the difference between standard and breakaway connector types?

A: The 68603-536 is classified as a standard header. The 929705-06-36-I and Sullins variants are classified as header, breakaway types. Breakaway connectors feature perforated insulation allowing individual position separation. This does not affect mating compatibility with standard receptacles but provides additional design flexibility for applications requiring modular pin configurations.

Q: Which substitute offers the best compliance profile for new designs?

A: All substitute parts carry active product status and RoHS compliance. The Sullins variants (PBC36SFAN, PEC36SFAN, PEC36SFCN) provide ROHS3 compliance, representing the most current regulatory standard. The 77311-815-36LF provides RoHS compliance. The 929705-06-36-I provides RoHS compliance. Selection should align with specific regulatory requirements for the target application.

Q: Are operating temperature ranges a critical substitution factor?

A: Operating temperature ranges are provided for all substitutes but not specified for the obsolete 68603-536. The 77311-815-36LF and Sullins variants specify -65°C ~ 125°C operating range. The 929705-06-36-I specifies -40°C ~ 105°C. These ranges do not affect mechanical mating compatibility but should be verified against application thermal requirements.

Q: What inventory considerations apply to these substitutes?

A: The 68603-536 maintains 861 pieces in stock but is classified as obsolete. Active alternatives include: 77311-815-36LF (710 pieces), 929705-06-36-I (1268 pieces), PBC36SFAN (4272 pieces), PEC36SFAN (6328 pieces), and PEC36SFCN (1391 pieces). Inventory levels reflect current market availability and should be verified at time of procurement.

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