Amphenol ICC 77313-403-72LF Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 77313-403-72LF is an active rectangular connector header designed for through-hole mounting applications. This BERGSTIK® series component features 72 positions arranged in 2 rows with 0.100" (2.54mm) pitch, supporting board-to-board or cable connections. The connector is manufactured with phosphor bronze contacts finished in tin and operates across a temperature range of -65°C to 130°C. Finding equivalent and substitute parts becomes necessary when addressing supply chain requirements, specific mechanical stack heights, contact finish preferences, or insulation material compatibility with particular application environments.

Key Parameters

Parameter	Value
Manufacturer Part Number	77313-403-72LF
Manufacturer	Amphenol ICC (FCI)
Category	Rectangular Connectors
Connector Type	Header, Breakaway
Contact Type	Male Pin
Number of Positions	72
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Contact Material	Phosphor Bronze
Contact Finish - Mating	Tin
Current Rating	3A per Contact
Operating Temperature	-65°C ~ 130°C
Insulation Material	Thermoplastic
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 77313-403-72LF is determined by strict alignment with the following core parameters:

Connector Type: Header, Breakaway configuration
Contact Type: Male Pin
Number of Positions: 72 total positions
Number of Rows: 2 rows
Pitch - Mating: 0.100" (2.54mm)
Row Spacing - Mating: 0.100" (2.54mm)
Mounting Type: Through Hole
Termination: Solder
Contact Shape: Square
Insulation Height: 0.100" (2.54mm)
Current Rating: 3A per Contact
Material Flammability Rating: UL94 V-0
Insulation Color: Black

Substitute parts are grouped based on variations in contact length specifications (mating and post lengths), contact material composition, contact finish type, insulation material formulation, and operating temperature ranges. All substitute parts maintain identical pitch, position count, row configuration, and mounting methodology. Differences in overall contact length and post length accommodate varying PCB stack-up requirements and application-specific insertion depths.

Parameter Comparison

Parameter	77313-403-72LF (Amphenol ICC)	M20-9763642 (Harwin)	M20-9763646 (Harwin)	PBC36DAAN (Sullins)	PBC36DABN (Sullins)	PBC36DACN (Sullins)	PBC36DADN (Sullins)	PBC36DAEN (Sullins)	PBC36DAFN (Sullins)	PBC36DAHN (Sullins)	PEC36DAAN (Sullins)
Manufacturer	Amphenol ICC (FCI)	Harwin Inc.	Harwin Inc.	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions
Connector Type	Header, Breakaway	Header, Cuttable	Header, Cuttable	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	72	72	72	72	72	72	72	72	72	72	72
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
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)	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - 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)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
Contact Length - Mating	0.225" (5.72mm)	0.228" (5.80mm)	0.228" (5.80mm)	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)	0.230" (5.84mm)
Contact Length - Post	0.200" (5.08mm)	0.122" (3.10mm)	0.122" (3.10mm)	0.120" (3.05mm)	0.230" (5.84mm)	0.320" (8.13mm)	0.420" (10.67mm)	0.520" (13.21mm)	0.620" (15.75mm)	0.820" (20.83mm)	0.120" (3.05mm)
Overall Contact Length	0.526" (13.35mm)	0.452" (11.48mm)	0.452" (11.48mm)	0.450" (11.43mm)	0.560" (14.22mm)	0.650" (16.51mm)	0.750" (19.05mm)	0.850" (21.59mm)	0.950" (24.13mm)	1.150" (29.21mm)	0.450" (11.43mm)
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)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Material	Phosphor Bronze	Brass	Brass	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Finish - Mating	Tin	Gold	Tin	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Tin
Contact Finish - Post	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin
Insulation Material	Thermoplastic	Polyamide (PA6T), Nylon 6T	Polyamide (PA6T), Nylon 6T	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
Current Rating	3A per Contact	3A per Contact	3A per Contact	3A	3A	3A	3A	3A	3A	3A	3A
Operating Temperature	-65°C ~ 130°C	-40°C ~ 105°C	-40°C ~ 105°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C
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	UL94 V-0	UL94 V-0
Insulation Color	Black	Black	Black	Black	Black	Black	Black	Black	Black	Black	Black
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Not Applicable	Not Applicable	Not Applicable	1 (Unlimited)	Not Applicable	Not Applicable	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts listed maintain active product status and comply with RoHS3 requirements, ensuring regulatory alignment with current environmental standards. The primary selection criteria depend on application-specific mechanical requirements:

Harwin M20 Series (M20-9763642, M20-9763646): These cuttable header variants feature reduced post length (0.122" / 3.10mm) and overall contact length (0.452" / 11.48mm), suitable for compact PCB stack-up configurations. Operating temperature range is -40°C to 105°C, which is narrower than the original part. Contact material is brass rather than phosphor bronze. M20-9763642 features gold mating finish, while M20-9763646 uses tin mating finish.

Sullins PBC36 Series (PBC36DAAN through PBC36DAHN): These breakaway headers use phosphor bronze contacts with polybutylene terephthalate (PBT) insulation and operate across -65°C to 125°C. Post length variants range from 0.120" (3.05mm) to 0.820" (20.83mm), accommodating diverse PCB thickness requirements. Most variants feature gold mating finish. Selection within this series is determined by required post length for specific stack-up heights.

Sullins PEC36DAAN: This variant matches the Sullins PBC36 series specifications but uses tin mating finish instead of gold, providing cost optimization while maintaining phosphor bronze contact material and PBT insulation.

Temperature-sensitive applications requiring operation above 105°C should select Sullins PBC36 or PEC36 variants, which support -65°C to 125°C operation. Applications with strict compact form factor requirements may utilize Harwin M20 series despite the reduced temperature range.

Frequently Asked Questions (FAQ)

Q: Can the Harwin M20-9763642 directly replace the Amphenol ICC 77313-403-72LF?

A: Direct replacement depends on application requirements. Both connectors share identical pitch (0.100" / 2.54mm), position count (72), row configuration (2 rows), and current rating (3A per contact). However, the Harwin part has a narrower operating temperature range (-40°C to 105°C versus -65°C to 130°C) and uses brass contacts instead of phosphor bronze. The post length is also shorter (0.122" versus 0.200"), which may affect PCB stack-up compatibility. Verify temperature and mechanical requirements before substitution.

Q: What is the difference between the Sullins PBC36DAAN and PEC36DAAN?

A: Both parts are identical except for contact finish on the mating surface. PBC36DAAN uses gold mating finish, while PEC36DAAN uses tin mating finish. Both maintain phosphor bronze contact material, PBT insulation, and operate across -65°C to 125°C. Selection depends on application corrosion resistance requirements and cost considerations.

Q: How do I select the correct Sullins PBC36 variant based on post length?

A: Sullins PBC36 variants are differentiated by post length, which determines overall contact length and stack-up height. PBC36DAAN features 0.120" post length (0.450" overall), suitable for thin PCB applications. Post lengths increase progressively through the series: PBC36DABN (0.230"), PBC36DACN (0.320"), PBC36DADN (0.420"), PBC36DAEN (0.520"), PBC36DAFN (0.620"), and PBC36DAHN (0.820"). Select the variant matching your PCB thickness and mating connector stack-up requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. The original Amphenol ICC 77313-403-72LF is RoHS Compliant. All listed substitute parts are ROHS3 Compliant, which represents the current RoHS directive standard. ROHS3 compliance encompasses RoHS Compliant requirements, ensuring regulatory compatibility for new designs and existing applications.

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

A: Both connector types support 72-position, 2-row configurations with 0.100" pitch. Breakaway connectors (Amphenol ICC 77313-403-72LF and Sullins PBC36/PEC36 series) feature individual position separation capability. Cuttable connectors (Harwin M20 series) allow cutting the header strip to custom lengths while maintaining electrical and mechanical integrity. Selection depends on whether individual position separation or custom length cutting is required for the application.

Q: Can I use a substitute part with a different insulation material?

A: Insulation material substitution is application-dependent. The original part uses thermoplastic insulation. Harwin M20 series uses polyamide (PA6T) nylon 6T, while Sullins parts use polybutylene terephthalate (PBT). All materials maintain UL94 V-0 flammability rating. Verify compatibility with your application environment, including chemical exposure, humidity, and thermal cycling requirements, before substituting insulation materials.

Q: What is the inventory status for these substitute parts?

A: Inventory levels are subject to change. At the time of this documentation, the Amphenol ICC 77313-403-72LF has 1007 pieces in stock. Harwin M20-9763642 has 1722 pieces, and M20-9763646 has 1351 pieces. Sullins PEC36DAAN has the highest inventory at 13229 pieces. Verify current availability with your component supplier before finalizing procurement decisions.

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