Equivalent & Substitute Parts for 77313-122-08

Part Overview

The Amphenol ICC 77313-122-08 is a rectangular connector header with 8 positions at 0.100" (2.54mm) pitch, designed for through-hole board-to-board or cable applications. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The connector features unshrouded, breakaway male pins with solder termination and push-pull fastening, suitable for applications requiring standard 2.54mm pitch connectivity.

Key Parameters

Parameter	Value
Manufacturer Part Number	77313-122-08
Manufacturer	Amphenol ICC (FCI)
Category	Rectangular Connectors
Series	BERGSTIK®
Product Status	Obsolete
Connector Type	Header, Breakaway
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	8
Number of Rows	2
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 for the 77313-122-08 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 8
Number of Rows: 2
Row Spacing - Mating: 0.100" (2.54mm)
Contact Type: Male Pin
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Connector Type: Header, Breakaway
Insulation Material: Thermoplastic or equivalent
Material Flammability Rating: UL94 V-0

Acceptable Variations:

Contact Length - Mating and Contact Length - Post may vary within application-specific tolerances
Overall Contact Length variations are acceptable if mating and post lengths remain compatible
Contact Finish specifications may differ (Gold, Tin, or combinations thereof)
Contact Material may vary (Phosphor Bronze, Brass, Copper Alloy)
Insulation Color variations are acceptable
Operating Temperature ranges may differ
Current Rating specifications may differ
RoHS compliance status may differ from the original part

Substitute parts must maintain the same pitch, position count, row configuration, and fundamental connector architecture to ensure mechanical and electrical compatibility with existing PCB designs and mating connectors.

Parameter Comparison

Parameter	77313-122-08	77313-122-08LF	2308-6221-TG	826632-4	BBD-104-T-B	HW-04-07-T-D-200-055	M20-9760446	PBC04DFAN	PBC04DFBN	PBC04DFCN	PBC04DFDN
Manufacturer	Amphenol ICC	Amphenol ICC	3M	TE Connectivity	Samtec Inc.	Samtec Inc.	Harwin Inc.	Sullins	Sullins	Sullins	Sullins
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
Connector Type	Header, Breakaway	Header, Breakaway	Header	Header, Breakaway	Header	Header Spacer	Header, Cuttable	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
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)
Number of Positions	8	8	8	8	8	8	8	8	8	8	8
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
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
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 Shape	Square	Square	Square	Square	Circular	Circular	Square	Square	Square	Square	Square
Contact Length - Mating	0.305" (7.75mm)	0.305" (7.75mm)	0.318" (8.08mm)	0.264" (6.70mm)	0.125" (3.18mm)	0.175" (4.445mm)	0.228" (5.80mm)	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)	0.126" (3.20mm)	0.125" (3.18mm)	0.175" (4.445mm)	0.122" (3.10mm)	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)	0.500" (12.70mm)	0.585" (14.86mm)	0.430" (10.922mm)	0.452" (11.48mm)	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)	0.110" (2.79mm)	0.335" (8.51mm)	N/A	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Finish - Mating	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold	Gold	Tin	Tin	Tin	Gold	Gold	Gold	Gold
Contact Finish - Post	Tin	Tin	Tin-Lead	Tin	Nickel	Tin	Tin	Tin	Tin	Tin	Tin
Contact Material	Phosphor Bronze	Phosphor Bronze	Copper Alloy	Brass	Not Specified	Not Specified	Brass	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Thermoplastic	Thermoplastic	Thermoplastic, Glass Filled	Polybutylene Terephthalate (PBT)	Polyester, Glass Filled	Polyester, Glass Filled	Polyamide (PA6T), Nylon 6T	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
Material Flammability Rating	UL94 V-0	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
Insulation Color	Black	Black	Black	Green	Black	Black	Black	Black	Black	Black	Black
Operating Temperature	Not Specified	-65°C ~ 130°C	-55°C ~ 105°C	-65°C ~ 105°C	-55°C ~ 125°C	Not Specified	-40°C ~ 105°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	5A	Not Specified	Not Specified	3A per Contact	3A	3A	3A	3A
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	1 (Unlimited)	Not Applicable	Not Applicable	Not Applicable	Not Applicable

Engineering Selection Recommendations

Direct Manufacturer Equivalent: The 77313-122-08LF from Amphenol ICC is the direct equivalent with active product status. This part maintains identical mechanical and electrical specifications to the obsolete 77313-122-08 while offering RoHS compliance and an extended operating temperature range of -65°C to 130°C. Selection of this part eliminates obsolescence risk while preserving full design compatibility.

Active Substitute Options by Compliance Profile:

RoHS3 Compliant, Active Status:

826632-4 (TE Connectivity): Highest current rating at 5A per contact. Suitable for applications requiring increased current capacity. Insulation height variation of 0.110" (2.79mm) requires PCB layout verification.
PBC04DFAN, PBC04DFBN, PBC04DFCN, PBC04DFDN (Sullins Connector Solutions): All variants maintain RoHS3 compliance with operating temperature range of -65°C to 125°C. Selection between variants depends on required post length: PBC04DFAN (0.120"), PBC04DFBN (0.220"), PBC04DFCN (0.320"), or PBC04DFDN (0.420").
M20-9760446 (Harwin Inc.): Cuttable header design with RoHS3 compliance. Operating temperature range -40°C to 105°C. Suitable for applications requiring individual position separation.

RoHS3 Compliant, Specialized Configurations:

BBD-104-T-B (Samtec Inc.): Circular contact geometry with extended operating temperature range of -55°C to 125°C. Insulation height of 0.335" (8.51mm) represents significant dimensional variation requiring design verification.
HW-04-07-T-D-200-055 (Samtec Inc.): Flex Stack spacer connector with 0.200" (5.080mm) stack height. Specialized for applications requiring stacked connector configurations.

Non-RoHS Compliant, Active Status:

2308-6221-TG (3M): Active product with glass-filled thermoplastic insulation. Operating temperature range -55°C to 105°C. Suitable for legacy designs where RoHS compliance is not required.

Selection Criteria:

For new designs: Select 77313-122-08LF or RoHS3-compliant alternatives.
For legacy system maintenance: 2308-6221-TG provides active status without RoHS requirement.
For increased current capacity: 826632-4 offers 5A rating versus standard 3A.
For post length flexibility: Sullins PBC04DF series provides four post length options.
For stacked applications: HW-04-07-T-D-200-055 provides integrated spacer configuration.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the 77313-122-08?

A: The 77313-122-08LF from Amphenol ICC is the direct equivalent and provides full compatibility. Other substitutes maintain the critical parameters (pitch, position count, row spacing, contact type, mounting, and termination) but may have variations in contact length, insulation height, or contact finish that require PCB layout verification. Mechanical fit and electrical performance must be confirmed for each application.

Q: What is the primary reason for substitution?

A: The 77313-122-08 is classified as obsolete. The 77313-122-08LF provides an active product alternative with identical specifications and improved compliance status. Other substitutes offer active product status with equivalent core functionality.

Q: Are all substitute parts RoHS compliant?

A: No. The 77313-122-08LF and most active substitutes (826632-4, PBC04DFAN/DFBN/DFCN/DFDN, M20-9760446, BBD-104-T-B, HW-04-07-T-D-200-055) are RoHS3 compliant. The 2308-6221-TG from 3M is RoHS non-compliant. Compliance requirements should drive selection for new designs.

Q: What are the key dimensional differences I need to verify?

A: Contact length variations are the primary dimensional consideration. The original part specifies 0.305" (7.75mm) mating contact length. Substitutes range from 0.125" to 0.318" mating contact length. Post length varies from 0.120" to 0.420". Insulation height is typically 0.100" (2.54mm) except for 826632-4 at 0.110" (2.79mm) and BBD-104-T-B at 0.335" (8.51mm). PCB pad depth and connector cavity depth must accommodate these variations.

Q: Do all substitutes maintain the same pitch and position count?

A: Yes. All listed substitutes maintain 0.100" (2.54mm) pitch, 8 positions, and 2-row configuration. This ensures compatibility with existing PCB footprints and mating connectors designed for the original part.

Q: What is the difference between the Sullins PBC04DF variants?

A: All Sullins variants (PBC04DFAN, PBC04DFBN, PBC04DFCN, PBC04DFDN) are identical except for post length. Selection depends on application requirements: PBC04DFAN provides 0.120" post length (closest to original), PBC04DFBN provides 0.220", PBC04DFCN provides 0.320", and PBC04DFDN provides 0.420". Choose based on PCB thickness and connector cavity depth requirements.

Q: Can I use the BBD-104-T-B or HW-04-07-T-D-200-055 as direct substitutes?

A: These parts require design verification. BBD-104-T-B features circular contacts instead of square and significantly increased insulation height (0.335" versus 0.100"), affecting PCB layout. HW-04-07-T-D-200-055 is a spacer connector with integrated stack height (0.200"), suitable for stacked applications rather than standard board-to-board connections. Both are compatible with the 2.54mm pitch standard but require mechanical fit confirmation.

Q: Which substitute offers the highest current rating?

A: The 826632-4 from TE Connectivity offers 5A per contact, compared to the standard 3A rating of most alternatives. This part is suitable for applications requiring increased current capacity while maintaining all other critical parameters.

Q: What operating temperature range should I select?

A: The original part does not specify operating temperature. The 77313-122-08LF provides -65°C to 130°C, the widest range among substitutes. Most RoHS3-compliant alternatives provide -65°C to 105°C or -65°C to 125°C. Selection depends on application thermal requirements. The M20-9760446 provides a more limited range of -40°C to 105°C.

Q: Are there packaging differences I should consider?

A: Yes. Most substitutes are supplied in bulk packaging. The BBD-104-T-B is supplied in tube packaging. The HW-04-07-T-D-200-055 packaging is not specified. Verify packaging compatibility with your procurement and assembly processes.

Q: Can I mix different substitute parts in the same design?

A: Not recommended. While all substitutes maintain the 2.54mm pitch and 8-position configuration, variations in contact length, post length, and insulation height may create mechanical inconsistencies in the final assembly. Standardize on a single substitute part number for each connector position in your design.

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