Equivalent & Substitute Parts for Amphenol ICC 78229-503

Part Overview

The Amphenol ICC 78229-503 is a vertical through-hole rectangular connector header with 3 positions at 0.100" (2.54mm) pitch, designed for board-to-board applications. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The BERGSTIK® II series connector features unshrouded male pins with press-fit and solder termination options, suitable for standard PCB assembly processes.

Key Parameters

Parameter	Value
Manufacturer Part Number	78229-503
Manufacturer	Amphenol ICC (FCI)
Series	BERGSTIK® II
Product Status	Obsolete
Connector Type	Header
Contact Type	Male Pin
Number of Positions	3
Number of Rows	1
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Style	Board to Board
Shrouding	Unshrouded
Termination	Press-Fit, Solder
Contact Shape	Square
Contact Material	Phosphor Bronze
Contact Finish - Mating	Gold or Gold, GXT™
Contact Finish Thickness - Mating	15.0µin (0.38µm)
Overall Contact Length	0.538" (13.67mm)
Insulation Height	0.100" (2.54mm)
Insulation Color	Black
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 78229-503 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 3
Number of Rows: 1
Connector Type: Header
Contact Type: Male Pin
Mounting Type: Through Hole
Style: Board to Board
Shrouding: Unshrouded
Contact Shape: Square
Fastening Type: Push-Pull
Material Flammability Rating: UL94 V-0
Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameters Allowing Substitution:

Contact Material (Phosphor Bronze, Brass, Copper Alloy)
Contact Finish - Mating (Gold, Tin-Lead, Tin)
Contact Finish Thickness - Mating (within functional tolerance)
Insulation Material (PBT, PCT, Glass-filled variants)
Overall Contact Length (within mechanical compatibility range)
Contact Length - Post (within PCB assembly requirements)
Operating Temperature range (when application permits)
RoHS Compliance status (when regulatory requirements allow)
Product Status (Active substitutes preferred for obsolete parts)

Substitute parts must maintain identical pitch, position count, row configuration, and basic form factor to ensure direct mechanical and electrical compatibility with existing PCB designs.

Parameter Comparison

Parameter	78229-503 (Main)	826648-3 (TE)	929700-01-03 (3M)	929700-11-03-RK (3M)	929705-01-03-EU (3M)	929705-01-03-I (3M)	929705-06-03-EU (3M)	929705-06-03-I (3M)	929705-09-03-EU (3M)	929705-09-03-I (3M)	929705-11-03-EU (3M)
Manufacturer	Amphenol ICC	TE Connectivity	3M	3M	3M	3M	3M	3M	3M	3M	3M
Series	BERGSTIK® II	AMPMODU Mod II	929	929	929	929	929	929	929	929	929
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
Connector Type	Header	Header, Breakaway	Header, Breakaway	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	3	3	3	3	3	3	3	3	3	3	3
Number of Rows	1	1	1	1	1	1	1	1	1	1	1
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)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Style	Board to Board	Board to Board or Cable	Board to Board	Board to Board	Board to Board	Board to Board	Board to Board	Board to Board	Board to Board	Board to Board	Board to Board
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Termination	Press-Fit, 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 Material	Phosphor Bronze	Brass	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy
Contact Finish - Mating	Gold or Gold, GXT™	Gold	Tin-Lead	Tin	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish Thickness - Mating	15.0µin (0.38µm)	3.90µin (0.099µm)	100.0µin (2.54µm)	200.0µin (5.08µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)
Overall Contact Length	0.538" (13.67mm)	0.551" (14.00mm)	0.528" (13.42mm)	0.543" (13.80mm)	0.528" (13.42mm)	0.528" (13.42mm)	1.128" (28.65mm)	1.128" (28.65mm)	0.563" (14.30mm)	0.563" (14.30mm)	0.543" (13.80mm)
Insulation Height	0.100" (2.54mm)	0.110" (2.79mm)	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)
Insulation Color	Black	Green	Black	Black	Black	Black	Black	Black	Black	Black	Black
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
Operating Temperature	Not specified	-65°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Current Rating (Amps)	Not specified	5A	2.5A	2.5A	2.5A	2.5A	2.5A	2.5A	2.5A	2.5A	2.5A
RoHS Status	RoHS non-compliant	RoHS Compliant	RoHS non-compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitute - TE Connectivity 826648-3: This part is the manufacturer-recommended substitute with active product status. It maintains all critical mechanical parameters and offers the widest operating temperature range (-65°C to 105°C) and highest current rating (5A). RoHS compliance is achieved. The insulation height variance (0.110" vs. 0.100") and green insulation color represent minor deviations that do not affect electrical or mechanical compatibility in standard board-to-board applications.

Secondary Substitutes - 3M 929 Series: The 3M 929 series provides multiple active alternatives with consistent mechanical compatibility. Parts 929700-01-03 and 929700-11-03-RK maintain the original black insulation color. The 929700-01-03 variant retains RoHS non-compliant status matching the original part, while 929700-11-03-RK achieves RoHS compliance. The 929705 variants (01-03-EU, 01-03-I, 06-03-EU, 06-03-I, 09-03-EU, 09-03-I, 11-03-EU) offer RoHS-compliant alternatives with gold contact finish and improved environmental specifications.

Contact Length Considerations: Parts 929705-06-03-EU and 929705-06-03-I feature extended post length (0.710" vs. 0.120"), suitable for applications requiring deeper PCB penetration. Parts 929705-09-03-EU and 929705-09-03-I provide intermediate post length (0.145"). Standard applications should use parts with post lengths between 0.110" and 0.145" for optimal mechanical fit.

Regulatory Compliance: For applications requiring RoHS compliance, select from TE Connectivity 826648-3 or any 3M 929705 variant. For legacy systems maintaining non-compliant status, 929700-01-03 provides direct compatibility. All substitute parts maintain UL94 V-0 flammability rating and MSL 1 moisture sensitivity level.

Frequently Asked Questions (FAQ)

Q: Can I use 826648-3 as a direct replacement for 78229-503? A: Yes. The 826648-3 maintains identical pitch (2.54mm), position count (3), row configuration (1), and mounting type (through hole). The insulation height increases from 0.100" to 0.110", which does not affect standard board-to-board mating. Operating temperature range expands to -65°C to 105°C, and current rating increases to 5A.

Q: What is the difference between 929705-01-03-EU and 929705-01-03-I? A: Both parts are mechanically and electrically identical. The designation suffix indicates regional compliance variants: EU denotes European market compliance, while I denotes international compliance. Insulation material differs (PCT for EU, PBT glass-filled for I), but both maintain identical electrical performance and UL94 V-0 rating.

Q: Why do some 3M 929705 variants have longer post lengths? A: Post length variations (0.110", 0.145", 0.710") accommodate different PCB thicknesses and assembly requirements. Standard applications use 0.110" or 0.145" variants. Extended 0.710" variants (06-03 series) are for applications requiring deeper board penetration or specific mechanical requirements.

Q: Is the 78229-503 compatible with 929700-01-03 if my application is RoHS non-compliant? A: Yes. The 929700-01-03 maintains RoHS non-compliant status matching the original part. All critical parameters align: 2.54mm pitch, 3 positions, 1 row, through-hole mounting, square contacts, and UL94 V-0 rating. Contact material differs (Copper Alloy vs. Phosphor Bronze) and contact finish is Tin-Lead, but these variations do not affect functional compatibility.

Q: Can I mix substitute parts in the same assembly? A: All listed substitutes maintain identical pitch, position count, and row configuration, allowing mechanical interchangeability within a single assembly. However, for consistency in production and quality control, using a single substitute part number across an assembly is recommended.

Q: What is the significance of contact finish differences? A: Contact finish (Gold, Tin-Lead, Tin) affects corrosion resistance and mating durability. Gold finishes provide superior corrosion resistance and are preferred for long-term reliability. Tin and Tin-Lead finishes are suitable for standard applications with adequate environmental protection. All finishes maintain electrical conductivity within specification.

Q: Does the 826648-3 breakaway feature affect compatibility? A: No. The breakaway feature is a manufacturing option that allows individual connector positions to be separated if needed. This does not affect the connector's ability to function as a standard 3-position header in board-to-board applications.

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