Amphenol ICC 77313-122-32 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 77313-122-32 is a vertical rectangular connector header featuring 32 positions with 0.100" (2.54mm) pitch, designed for through-hole board-to-board or cable applications. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The connector utilizes male pins with gold-plated mating contacts and tin-plated posts, housed in a thermoplastic insulation body with UL94 V-0 flammability rating.

Key Parameters

Parameter	Value
Manufacturer Part Number	77313-122-32
Manufacturer	Amphenol ICC (FCI)
Category	Rectangular Connectors
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 Finish - Mating	Gold or Gold, GXT™
Contact Finish - Post	Tin
Contact Material	Phosphor Bronze
Insulation Material	Thermoplastic
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 77313-122-32 is determined by strict alignment with the following core electrical and mechanical parameters:

Critical Matching Parameters:

Number of Positions: 32
Number of Rows: 2
Pitch - Mating: 0.100" (2.54mm)
Row Spacing - Mating: 0.100" (2.54mm)
Connector Type: Header (with or without breakaway feature)
Contact Type: Male Pin
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Insulation Material: Thermoplastic or equivalent
Material Flammability Rating: UL94 V-0

Allowable Variations:

Contact Finish - Mating: Gold or Tin (both acceptable for 2.54mm pitch headers)
Contact Finish - Post: Tin or Nickel (both acceptable for solder termination)
Contact Material: Phosphor Bronze or Copper Alloy (both acceptable)
Insulation Material: Thermoplastic, Polybutylene Terephthalate (PBT), or Polyester (all acceptable)
Contact Length - Mating: 0.305" to 0.318" (7.75mm to 8.08mm)
Contact Length - Post: 0.120" to 0.520" (3.05mm to 13.21mm) - varies by application stacking height
Overall Contact Length: 0.460" to 0.938" (11.68mm to 23.83mm)
Insulation Height: 0.100" to 0.335" (2.54mm to 8.51mm)
Operating Temperature: -55°C to 130°C range
Current Rating: 3A per contact (where specified)

Substitute parts must maintain mechanical compatibility with standard 2.54mm pitch PCB footprints and retain push-pull fastening for reliable mating cycles.

Parameter Comparison

Parameter	77313-122-32 (Main)	77313-122-32LF	2332-6221-TG (3M)	BBD-116-G-A (Samtec)	BBD-116-T-B (Samtec)	PBC16DFAN (Sullins)	PBC16DFBN (Sullins)	PBC16DFCN (Sullins)	PBC16DFDN (Sullins)	PBC16DFEN (Sullins)	PEC16DFAN (Sullins)
Manufacturer	Amphenol ICC	Amphenol ICC	3M	Samtec Inc.	Samtec Inc.	Sullins	Sullins	Sullins	Sullins	Sullins	Sullins
Number of Positions	32	32	32	32	32	32	32	32	32	32	32
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)
Connector Type	Header, Breakaway	Header, Breakaway	Header	Header	Header	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
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
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.305" (7.75mm)	0.305" (7.75mm)	0.318" (8.08mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)
Contact Length - Post	0.120" (3.05mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.125" (3.18mm)	0.125" (3.18mm)	0.120" (3.05mm)	0.220" (5.58mm)	0.320" (8.13mm)	0.420" (10.67mm)	0.520" (13.21mm)	0.120" (3.05mm)
Overall Contact Length	0.526" (13.35mm)	0.526" (13.35mm)	0.538" (13.67mm)	0.460" (11.68mm)	0.585" (14.86mm)	0.538" (13.67mm)	0.638" (16.21mm)	0.738" (18.75mm)	0.838" (21.29mm)	0.938" (23.83mm)	0.538" (13.67mm)
Insulation Height	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.211" (5.35mm)	0.335" (8.51mm)	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 Shape	Square	Square	Square	Circular	Circular	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold	Gold	Tin	Gold	Gold	Gold	Gold	Gold	Tin
Contact Finish - Post	Tin	Tin	Tin-Lead	Nickel	Nickel	Tin	Tin	Tin	Tin	Tin	Tin
Contact Material	Phosphor Bronze	Phosphor Bronze	Copper Alloy	Not specified	Not specified	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Thermoplastic	Thermoplastic	Thermoplastic, Glass Filled	Polyester, Glass Filled	Polyester, Glass Filled	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	Not specified	Not specified	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
Operating Temperature	Not specified	-65°C ~ 130°C	-55°C ~ 105°C	-55°C ~ 125°C	-55°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
Current Rating (Amps)	Not specified	3A per Contact	3A	Not specified	Not specified	3A	3A	3A	3A	3A	3A
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	RoHS Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Not Applicable	Not Applicable	Not Applicable	Not Applicable	Not Applicable	Not Applicable

Engineering Selection Recommendations

Direct Amphenol ICC Replacement: The 77313-122-32LF is the direct successor to the obsolete 77313-122-32. Both components share identical mechanical and electrical specifications with matching contact geometries, pitch, and row spacing. The primary distinction is product status and compliance: 77313-122-32LF is active production and RoHS Compliant, whereas the original part is obsolete and RoHS non-compliant. This part is the preferred choice for new designs and production continuity.

Sullins Connector Solutions Alternatives: The Sullins PBC16 and PEC16 series headers provide full mechanical and electrical compatibility with the 77313-122-32. All Sullins variants maintain the critical 32-position, 2-row, 0.100" pitch configuration with square contacts, push-pull fastening, and UL94 V-0 insulation. Sullins parts are ROHS3 Compliant and offer extended operating temperature ranges (-65°C to 125°C). Selection among PBC16DFAN, PBC16DFBN, PBC16DFCN, PBC16DFDN, PBC16DFEN, and PEC16DFAN depends on required post length for specific PCB stacking height applications. PBC16DFAN and PEC16DFAN provide standard 0.120" (3.05mm) post length matching the original part. PEC16DFAN uses tin mating contacts instead of gold, suitable for cost-optimized applications.

3M 2332-6221-TG Alternative: The 3M 2332 series header maintains full mechanical compatibility with 0.100" pitch, 32 positions, and 2-row configuration. Contact geometry differs slightly with 0.318" mating contact length versus 0.305" on the original part. Operating temperature range is -55°C to 105°C, which is narrower than Amphenol and Sullins alternatives. This part is RoHS non-compliant. Selection is appropriate for legacy system support where 3M component qualification exists.

Samtec BBD Series Consideration: Samtec BBD-116-G-A and BBD-116-T-B headers maintain 32-position, 2-row, 0.100" pitch configuration with push-pull fastening. Contact geometry differs significantly with 0.125" mating contact length and circular contact shape versus square contacts on the original part. Insulation height varies (0.211" to 0.335") compared to 0.100" on the original. These parts are ROHS3 Compliant with -55°C to 125°C operating range. Samtec alternatives are suitable only when mechanical footprint differences are accommodated in PCB design.

Compliance Considerations: For new designs requiring RoHS compliance, 77313-122-32LF, all Sullins variants (PBC16 and PEC16 series), and Samtec BBD series are compliant. The original 77313-122-32 and 3M 2332-6221-TG are non-compliant. For REACH compliance, 77313-122-32LF and Sullins parts are unaffected or compliant, while 3M and Samtec parts are affected.

Frequently Asked Questions (FAQ)

Q: Can I use 77313-122-32LF as a direct replacement for the obsolete 77313-122-32?

A: Yes. The 77313-122-32LF is the direct active production equivalent with identical mechanical and electrical specifications. The only differences are product status (active vs. obsolete) and RoHS compliance (compliant vs. non-compliant). No PCB redesign is required.

Q: What is the difference between Sullins PBC16DFAN and PEC16DFAN?

A: Both maintain identical mechanical configuration and 0.120" post length. The primary difference is contact finish: PBC16DFAN uses gold mating contacts while PEC16DFAN uses tin mating contacts. PEC16DFAN is suitable for cost-optimized applications where gold plating is not required.

Q: Why do Sullins PBC16DFBN, PBC16DFCN, and PBC16DFDN exist if PBC16DFAN matches the original part?

A: These variants provide different post lengths (0.220", 0.320", and 0.420" respectively) to accommodate different PCB stacking heights and mating connector depths. Selection depends on the specific application's vertical clearance requirements. The original 77313-122-32 uses 0.120" post length, matching PBC16DFAN.

Q: Are Samtec BBD-116-G-A and BBD-116-T-B fully compatible with the 77313-122-32?

A: Samtec BBD headers maintain pitch and position count but differ in contact geometry (circular vs. square), contact length, and insulation height. While electrically compatible for 2.54mm pitch applications, mechanical footprint differences require PCB design verification before substitution.

Q: What is the operating temperature range of the original 77313-122-32?

A: The original part does not specify an operating temperature range in the provided documentation. The active equivalent 77313-122-32LF operates from -65°C to 130°C. For applications requiring specific temperature performance, the 77313-122-32LF specification should be used.

Q: Which substitute part offers the best RoHS and REACH compliance?

A: Sullins PBC16 and PEC16 series headers are ROHS3 Compliant and REACH Unaffected, providing the most favorable compliance profile. The 77313-122-32LF is RoHS Compliant but REACH Affected. Samtec BBD series is ROHS3 Compliant but REACH Affected.

Q: Can I mix different Sullins post length variants in the same design?

A: Yes, all Sullins PBC16 and PEC16 variants share identical pitch, position count, and electrical characteristics. Different post lengths can be used in different locations on the same PCB to accommodate varying stacking heights, provided the PCB footprint and connector mating depths are designed accordingly.

Q: What packaging options are available for these substitute parts?

A: 77313-122-32LF is available in Bulk packaging. Sullins PBC16 and PEC16 series are available in Bulk packaging. 3M 2332-6221-TG is available in Bulk packaging. Samtec BBD-116-G-A and BBD-116-T-B are available in Tube packaging. Packaging selection may affect lead times and minimum order quantities.

Q: Is the 3M 2332-6221-TG suitable for new designs?

A: The 3M 2332-6221-TG is not recommended for new designs due to RoHS non-compliance and narrower operating temperature range (-55°C to 105°C). It is suitable only for legacy system support or repair applications where 3M component qualification already exists. For new designs, use 77313-122-32LF or Sullins alternatives.

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