Amphenol ICC 77313-122-44 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 77313-122-44 is a vertical through-hole rectangular connector header with 44 positions at 2.54mm pitch, designed for board-to-board or cable applications. This connector features a breakaway design with unshrouded configuration and solder termination. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for new designs and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	77313-122-44
Manufacturer	Amphenol ICC (FCI)
Category	Rectangular Connectors
Series	BERGSTIK®
Product Status	Obsolete
Connector Type	Header, Breakaway
Contact Type	Male Pin
Number of Positions	44
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Shape	Square
Insulation Material	Thermoplastic
Material Flammability Rating	UL94 V-0
Insulation Color	Black
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following critical parameters:

Core Compatibility Parameters:

Number of Positions: 44
Number of Rows: 2
Pitch - Mating: 0.100" (2.54mm)
Row Spacing - Mating: 0.100" (2.54mm)
Connector Type: Header
Contact Type: Male Pin
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Insulation Color: Black

Allowable Variations: Substitute parts may differ in the following parameters without affecting functional compatibility:

Contact Length - Mating (within board-to-board application constraints)
Contact Length - Post (determines insertion depth into mating connector)
Overall Contact Length (stack height variation)
Insulation Height (within 0.100" to 0.335" range)
Contact Finish specifications (Gold, Tin, or Nickel acceptable)
Contact Material (Phosphor Bronze or Copper Alloy acceptable)
Insulation Material (Thermoplastic or Polybutylene Terephthalate acceptable)
Product Status (Active substitutes preferred for obsolete parts)
RoHS Compliance (Active parts typically RoHS3 compliant)

Parameter Comparison

Parameter	77313-122-44	77313-122-44LF	2344-6221-TG	BBD-122-T-A	BBD-122-T-B	PBC22DFAN	PBC22DFBN	PBC22DFCN	PBC22DFDN
Manufacturer	Amphenol ICC	Amphenol ICC	3M	Samtec Inc.	Samtec Inc.	Sullins	Sullins	Sullins	Sullins
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active
Number of Positions	44	44	44	44	44	44	44	44	44
Number of Rows	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)
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)
Connector Type	Header, Breakaway	Header, Breakaway	Header	Header	Header	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
Mounting Type	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
Fastening Type	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)
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)
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)
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)
Contact Shape	Square	Square	Square	Circular	Circular	Square	Square	Square	Square
Contact Finish - Mating	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold	Tin	Tin	Gold	Gold	Gold	Gold
Contact Finish - Post	Tin	Tin	Tin-Lead	Nickel	Nickel	Tin	Tin	Tin	Tin
Contact Material	Phosphor Bronze	Phosphor Bronze	Copper Alloy	Not specified	Not specified	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)
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
Insulation Color	Black	Black	Black	Black	Black	Black	Black	Black	Black
Current Rating (Amps)	Not specified	3A per Contact	3A	Not specified	Not specified	3A	3A	3A	3A
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
RoHS Status	RoHS non-compliant	RoHS Compliant	RoHS non-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

Engineering Selection Recommendations

Direct Amphenol ICC Replacement: The 77313-122-44LF is the direct active equivalent from Amphenol ICC, maintaining identical electrical and mechanical specifications while offering RoHS compliance and active product status. This part is the primary recommendation for existing designs requiring minimal qualification effort.

Sullins Connector Solutions PBC22 Series: The PBC22DFAN, PBC22DFBN, PBC22DFCN, and PBC22DFDN variants provide functionally equivalent 44-position headers with identical pitch and row spacing. These parts feature ROHS3 compliance and extended operating temperature range (-65°C ~ 125°C). Selection among these variants depends on required contact post length: PBC22DFAN (0.120"), PBC22DFBN (0.220"), PBC22DFCN (0.320"), or PBC22DFDN (0.420"). All variants maintain square contact geometry and phosphor bronze material composition.

3M 2344-6221-TG: This 3M alternative provides equivalent 44-position configuration with 0.100" pitch. The part features copper alloy contacts and glass-filled thermoplastic insulation. Operating temperature range is -55°C ~ 105°C, which is narrower than the original specification. RoHS non-compliance status matches the original part.

Samtec BBD Series: The BBD-122-T-A and BBD-122-T-B headers offer 44-position configuration with identical pitch and row spacing. These parts feature circular contact geometry (versus square in the original), tin mating finish, and nickel post finish. Insulation height varies between variants (0.211" for BBD-122-T-A and 0.335" for BBD-122-T-B). ROHS3 compliance and -55°C ~ 125°C operating temperature are provided. Contact geometry difference requires mechanical compatibility verification.

Samtec EW Series Spacer Connectors: The EW-22-09-L-D-350 and EW-22-09-L-D-400 are specialized stacking headers with 44 positions at 0.100" pitch. These parts feature variable stack heights (0.350" and 0.400" respectively) and are designed for applications requiring elevated mating surfaces. ROHS3 compliance is provided.

Frequently Asked Questions (FAQ)

Q: Can I use BBD-122-T-A or BBD-122-T-B as direct replacements for 77313-122-44?

A: BBD series parts maintain the critical parameters of 44 positions, 2-row configuration, and 0.100" pitch. However, the circular contact geometry differs from the square contacts in the original part. Mechanical compatibility with existing mating connectors must be verified before substitution, as contact shape affects insertion force and alignment characteristics.

Q: What is the difference between PBC22DFAN, PBC22DFBN, PBC22DFCN, and PBC22DFDN?

A: These Sullins variants are identical except for contact post length. PBC22DFAN has 0.120" post length (equivalent to original), PBC22DFBN has 0.220", PBC22DFCN has 0.320", and PBC22DFDN has 0.420". Selection depends on the depth of the mating connector socket. All variants maintain identical pitch, row spacing, and electrical characteristics.

Q: Is the 77313-122-44LF a true equivalent to the obsolete 77313-122-44?

A: Yes. The 77313-122-44LF maintains identical electrical and mechanical specifications including pitch, row spacing, contact geometry, and overall dimensions. The primary differences are active product status and RoHS compliance. The "LF" designation indicates lead-free solder compatibility.

Q: Can I substitute the 2344-6221-TG from 3M?

A: The 3M part maintains 44 positions at 0.100" pitch with identical row spacing and push-pull fastening. However, the operating temperature range (-55°C ~ 105°C) is narrower than the original specification. If your application operates within this temperature range, substitution is mechanically and electrically compatible.

Q: What are the EW-22-09-L-D-350 and EW-22-09-L-D-400 used for?

A: These Samtec spacer connectors are designed for stacked connector applications where elevated mating surfaces are required. The stack height variants (0.350" and 0.400") allow for multiple connector levels. These parts are not direct replacements for standard headers but serve specialized board-to-board stacking applications.

Q: Why do some substitute parts have different insulation materials?

A: Insulation material variations (thermoplastic, PBT, polyester) do not affect electrical compatibility at 0.100" pitch with 44 positions. Material selection impacts mechanical durability, temperature performance, and flammability rating. All listed substitutes maintain UL94 V-0 or equivalent flammability compliance where specified.

Q: What does RoHS compliance mean for connector selection?

A: RoHS compliance indicates the part contains no lead, cadmium, mercury, or other restricted substances. The original 77313-122-44 is RoHS non-compliant. Active substitutes like 77313-122-44LF and Sullins PBC22 series are ROHS3 compliant, meeting current regulatory requirements for new designs and production.

Q: Are there packaging differences between these substitutes?

A: Yes. The original part is listed as obsolete with unspecified packaging. Active substitutes are available in Bulk (77313-122-44LF, 2344-6221-TG, PBC22 series) or Tube (BBD series) packaging. Packaging selection affects handling, storage, and automated assembly compatibility.

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