Amphenol ICC 78548-106 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 78548-106 is a rectangular connector header designed for through-hole board-to-board applications. This vertical 6-position connector operates at 0.100" (2.54mm) pitch and features male pins with kinked solder termination. The part is currently active in production with 851 units in stock. Substitute parts are identified to address inventory availability, compliance requirements, or specific application needs while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	6
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Style	Board to Board
Shrouding	Unshrouded
Contact Shape	Square
Material Flammability Rating	UL94 V-0
Insulation Color	Black

Substitute Part Grouping Explanation

Substitution eligibility for the 78548-106 is determined by strict alignment with the following core parameters: connector type (header), contact type (male pin), mating pitch (0.100"), position count (6), row configuration (2 rows), row spacing (0.100"), mounting method (through hole), style (board to board), shrouding (unshrouded), contact shape (square), and flammability rating (UL94 V-0). All identified substitutes match these parameters exactly.

The five substitute parts—929715-03-03-I (3M), TSW-103-14-S-D (Samtec), TSW-103-14-G-D (Samtec), TSW-103-14-T-D (Samtec), and TSW-103-14-L-D (Samtec)—are functionally equivalent for board-to-board header applications requiring 6-position 2.54mm pitch connectivity. Variations in contact finish, post length, and compliance status are secondary parameters that do not affect mechanical or electrical interchangeability in standard through-hole PCB applications.

Parameter Comparison

Parameter	78548-106 (Amphenol ICC)	929715-03-03-I (3M)	TSW-103-14-S-D (Samtec)	TSW-103-14-G-D (Samtec)	TSW-103-14-T-D (Samtec)	TSW-103-14-L-D (Samtec)
Connector Type	Header	Header	Header	Header	Header	Header
Contact Type	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)
Number of Positions	6	6	6	6	6	6
Number of Rows	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)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Style	Board to Board	Board to Board	Board to Board or Cable	Board to Board or Cable	Board to Board or Cable	Board to Board or Cable
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Contact Shape	Square	Square	Square	Square	Square	Square
Material Flammability Rating	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
Contact Material	Phosphor Bronze	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Finish - Mating	Gold or Gold, GXT™	Gold	Gold	Gold	Tin	Gold
Contact Finish Thickness - Mating	30.0µin (0.76µm)	10.0µin (0.25µm)	30.0µin (0.76µm)	10.0µin (0.25µm)	Not specified	10.0µin (0.25µm)
Contact Length - Post	0.120" (3.05mm)	0.410" (10.41mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.110" (2.79mm)
Overall Contact Length	0.538" (13.67mm)	0.828" (21.03mm)	0.530" (13.46mm)	0.530" (13.46mm)	0.530" (13.46mm)	0.530" (13.46mm)
Operating Temperature	Not specified	-40°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 125°C
Current Rating (Amps)	Not specified	2.5A	Not specified	Not specified	Not specified	Not specified
RoHS Status	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All five substitute parts maintain active product status and are functionally compatible with the 78548-106 for standard through-hole board-to-board header applications. Selection between substitutes should be based on specific application requirements:

The 3M 929715-03-03-I offers RoHS compliance and a specified 2.5A current rating, making it suitable for applications requiring regulatory compliance documentation. However, its extended post length (0.410") differs significantly from the original design and may require PCB layout verification.

The Samtec TSW series (TSW-103-14-S-D, TSW-103-14-G-D, TSW-103-14-T-D, TSW-103-14-L-D) provides ROHS3 compliance with post lengths closely matching the original specification (0.110"). These parts support extended operating temperature ranges (-55°C to 125°C for most variants) and are suitable for applications requiring broader thermal performance. Contact finish variations (gold or tin) allow selection based on solderability and corrosion resistance requirements.

The TSW-103-14-T-D variant with tin finish on both mating and post contacts offers cost optimization while maintaining mechanical compatibility. The TSW-103-14-G-D and TSW-103-14-L-D variants provide gold finish options with different post finishes (gold and tin respectively) for enhanced contact reliability.

Frequently Asked Questions (FAQ)

Q: Can the 78548-106 be directly replaced with any of these substitute parts?

A: Yes. All substitute parts share identical connector type, contact type, mating pitch (0.100"), position count (6), row configuration, mounting method, and shrouding. They are mechanically and electrically interchangeable for board-to-board header applications.

Q: What is the significance of the contact post length difference in the 3M 929715-03-03-I?

A: The 3M part has a post length of 0.410" compared to approximately 0.110" in the Samtec variants and 0.120" in the original. This extended length may affect PCB hole depth requirements and should be verified against your board design before substitution.

Q: Which substitute offers the best compliance profile?

A: The Samtec TSW series parts (TSW-103-14-S-D, TSW-103-14-G-D, TSW-103-14-T-D, TSW-103-14-L-D) all carry ROHS3 compliance. The 3M 929715-03-03-I provides RoHS compliance. The original 78548-106 is RoHS non-compliant.

Q: Are there differences in operating temperature ranges?

A: Yes. The original part does not specify an operating temperature range. The 3M substitute operates from -40°C to 105°C. Most Samtec variants operate from -55°C to 125°C, with the TSW-103-14-T-D limited to -55°C to 105°C.

Q: What is the difference between the Samtec variants?

A: The four Samtec TSW-103 variants differ primarily in contact finish specifications. TSW-103-14-S-D and TSW-103-14-G-D feature gold mating finish with different post finishes (tin and gold respectively). TSW-103-14-T-D uses tin finish on both mating and post surfaces. TSW-103-14-L-D combines gold mating finish with tin post finish. All share identical mechanical dimensions and electrical characteristics.

Q: Is the current rating specification important for my application?

A: Only the 3M 929715-03-03-I provides a specified current rating of 2.5A. If your application requires documented current capacity, this part should be selected. For applications where current rating is not specified in the original design, all parts are suitable.

Q: Can I mix these parts in the same assembly?

A: Yes. All parts are mechanically and electrically compatible and can be used interchangeably within the same assembly or across different production batches.

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