77313-402-32LF Equivalent & Substitute Parts

Part Overview

The 77313-402-32LF is a rectangular connector header manufactured by Amphenol ICC (FCI) in the BERGSTIK® series. This through-hole vertical header features 32 positions arranged in 2 rows with 0.100" (2.54mm) pitch, designed for board-to-board or cable connections. The part is currently active in production with 764 units in stock.

Substitute parts are necessary when the original manufacturer part becomes unavailable, when alternative packaging formats are required, or when specific contact finish or post length specifications better suit application requirements.

Key Parameters

Parameter	77313-402-32LF
Connector Type	Header, Breakaway
Contact Type	Male Pin
Number of Positions	32
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
Current Rating	3A per Contact
Operating Temperature	-65°C ~ 130°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 77313-402-32LF is determined by the following critical parameters that must remain constant across all alternatives:

Connector type: Header, Breakaway
Contact type: Male Pin
Number of positions: 32
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
Current rating: 3A per contact
Material flammability rating: UL94 V-0

The four substitute parts (PBC16DAAN, PBC16DACN, PBC16DAGN, PEC16DAAN) all meet these core requirements. Variations exist in contact finish specifications, post length, insulation material, and operating temperature range, which are documented in the parameter comparison table below.

Parameter Comparison

Parameter	77313-402-32LF	PBC16DAAN	PBC16DACN	PBC16DAGN	PEC16DAAN
Manufacturer	Amphenol ICC (FCI)	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions
Connector Type	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	32	32	32	32	32
Number of Rows	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)
Row Spacing - Mating	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)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)
Contact Length - Post	0.135" (3.43mm)	0.120" (3.05mm)	0.320" (8.13mm)	0.720" (18.29mm)	0.120" (3.05mm)
Overall Contact Length	0.465" (11.81mm)	0.450" (11.43mm)	0.650" (16.51mm)	1.050" (26.67mm)	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)
Contact Shape	Square	Square	Square	Square	Square
Contact Finish - Mating	Tin	Gold	Gold	Gold	Tin
Contact Finish Thickness - Mating	78.7µin (2.00µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	100.0µin (2.54µm)
Contact Finish - Post	Tin	Tin	Tin	Tin	Tin
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Thermoplastic	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
Operating Temperature	-65°C ~ 130°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
Current Rating	3A per Contact	3A	3A	3A	3A
Insulation Color	Black	Black	Black	Black	Black
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	Bag	Bulk	Bulk	Bulk	Bulk
Product Status	Active	Active	Active	Discontinued at DiGi Electronics	Active
Inventory	764 Pcs	1459 Pcs	1457 Pcs	1615 Pcs	3457 Pcs

Engineering Selection Recommendations

All four substitute parts maintain electrical and mechanical compatibility with the 77313-402-32LF through identical core specifications: 32-position, 2-row header with 0.100" pitch, male pin contacts, phosphor bronze material, 3A current rating, and UL94 V-0 flammability rating.

PBC16DAAN and PEC16DAAN are recommended as primary substitutes. Both are active products with high inventory availability. PBC16DAAN features gold-plated mating contacts with shorter post length (0.120"), while PEC16DAAN maintains tin finish on both mating and post surfaces with equivalent post length. PEC16DAAN offers the highest inventory level at 3457 units.

PBC16DACN provides extended post length (0.320") for applications requiring deeper PCB penetration or stacking configurations. This part remains active with 1457 units available.

PBC16DAGN features the longest post length (0.720") and is suitable for specialized stacking or extended reach applications. This part is discontinued at DiGi Electronics and should be selected only when post length requirements cannot be met by active alternatives.

All substitute parts are ROHS3 compliant. The operating temperature range of substitute parts (-65°C ~ 125°C) is 5°C lower than the original part (-65°C ~ 130°C). Insulation material differs from the original thermoplastic specification, with all substitutes using polybutylene terephthalate (PBT).

Frequently Asked Questions (FAQ)

Q: Can PBC16DAAN be used as a direct replacement for 77313-402-32LF?

A: PBC16DAAN is electrically and mechanically compatible. The primary differences are contact finish (gold vs. tin), post length (0.120" vs. 0.135"), and insulation material (PBT vs. thermoplastic). Operating temperature is reduced by 5°C. These differences do not affect core connector function for standard board-to-board applications.

Q: What is the significance of post length variations among the substitute parts?

A: Post length determines how far the solder tail extends into the PCB. The original part has 0.135" post length. PBC16DAAN and PEC16DAAN have shorter posts (0.120"), suitable for standard PCB thicknesses. PBC16DACN (0.320") and PBC16DAGN (0.720") are for applications requiring deeper penetration or connector stacking.

Q: Why do some substitutes have gold-plated mating contacts while others have tin?

A: Contact finish affects corrosion resistance and mating force. Gold plating (PBC16DAAN, PBC16DACN, PBC16DAGN) provides superior corrosion resistance and lower contact resistance. Tin finish (77313-402-32LF, PEC16DAAN) is standard for general-purpose applications. Selection depends on environmental exposure and electrical performance requirements.

Q: Is PBC16DAGN suitable for new designs?

A: PBC16DAGN is discontinued at DiGi Electronics. While 1615 units remain in inventory, it should not be selected for new designs. Use PBC16DAAN, PBC16DACN, or PEC16DAAN instead, which are active products with confirmed long-term availability.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant?

A: Both certifications indicate compliance with Restriction of Hazardous Substances regulations. ROHS3 represents the current regulatory standard. All substitute parts meet current compliance requirements.

Q: Does packaging format affect connector performance?

A: No. The original part is supplied in bag packaging, while substitutes are supplied in bulk packaging. Packaging format does not affect electrical or mechanical performance, only handling and inventory management.

Q: Can the 77313-402-32LF and its substitutes be used interchangeably in existing assemblies?

A: Yes, provided the PCB design accommodates post length variations. If the original design uses the 0.135" post length, verify that PBC16DAAN or PEC16DAAN (0.120" post) will not create insufficient solder joint depth. PBC16DACN and PBC16DAGN with longer posts may not fit standard PCB designs without modification.

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