Amphenol ICC 78548-516 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 78548-516 is a vertical through-hole rectangular connector header with 16 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This BERGSTIK® II series connector is designed for board-to-board applications with unshrouded male pin contacts and kinked pin solder termination. The part is currently active in production with 877 units in stock.

Substitute parts are necessary when the original manufacturer part becomes unavailable, when supply chain constraints require alternative sourcing, or when design flexibility permits equivalent connectors from other manufacturers that meet the same electrical and mechanical specifications.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	16
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Style	Board to Board
Shrouding	Unshrouded
Fastening Type	Push-Pull
Insulation Height	0.100" (2.54mm)
Contact Shape	Square
Material Flammability Rating	UL94 V-0
Insulation Color	Black
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 78548-516 is determined by strict equivalence across the following critical parameters:

Connector type (Header)
Contact type (Male Pin)
Number of positions (16) and row configuration (2 rows)
Mating pitch (0.100" / 2.54mm)
Row spacing (0.100" / 2.54mm)
Mounting method (Through Hole)
Board-to-board style
Unshrouded design
Push-pull fastening
Square contact shape
UL94 V-0 flammability rating
Black insulation color
MSL 1 rating

All four substitute parts meet these core requirements. Variations in contact material, contact finish composition, contact finish thickness, post length, and operating temperature range do not preclude substitution when the mechanical and electrical interface specifications remain identical.

Parameter Comparison

Parameter	78548-516 (Amphenol ICC)	929715-11-08-EU (3M)	TSW-108-14-L-D (Samtec)	TSW-108-14-S-D (Samtec)	TSW-108-14-T-D (Samtec)
Manufacturer	Amphenol ICC (FCI)	3M	Samtec Inc.	Samtec Inc.	Samtec Inc.
Series	BERGSTIK® II	929	TSW	TSW	TSW
Number of Positions	16	16	16	16	16
Number of Rows	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)
Row Spacing - Mating	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
Style	Board to Board	Board to Board	Board to Board or Cable	Board to Board or Cable	Board to Board or Cable
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.318" (8.08mm)	0.318" (8.08mm)	0.320" (8.13mm)	0.320" (8.13mm)	0.320" (8.13mm)
Contact Length - Post	0.120" (3.05mm)	0.125" (3.18mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.110" (2.79mm)
Overall Contact Length	0.538" (13.67mm)	0.543" (13.80mm)	0.530" (13.46mm)	0.530" (13.46mm)	0.530" (13.46mm)
Insulation Height	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	Square	Square
Contact Material	Phosphor Bronze	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Finish - Mating	Gold or Gold, GXT™	Gold	Gold	Gold	Tin
Contact Finish Thickness - Mating	15.0µin (0.38µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	30.0µin (0.76µm)	Not specified
Contact Finish - Post	Not specified	Gold	Tin	Tin	Tin
Insulation Material	Not specified	Polycyclohexylenedimethylene Terephthalate (PCT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
Operating Temperature	Not specified	-40°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Color	Black	Black	Black	Black	Black
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active
Inventory	877 Pcs	1042 Pcs	1373 Pcs	1083 Pcs	2124 Pcs

Engineering Selection Recommendations

All four substitute parts are active products with confirmed inventory availability. Selection among these equivalents should be based on the following factors:

RoHS Compliance: The original 78548-516 is RoHS non-compliant. If RoHS compliance is required for the application, all three substitute options (929715-11-08-EU, TSW-108-14-L-D, TSW-108-14-S-D, and TSW-108-14-T-D) meet ROHS3 or RoHS Compliant standards.

Operating Temperature Range: The TSW-108-14-L-D and TSW-108-14-S-D variants support -55°C to 125°C operation, providing the widest temperature envelope. The TSW-108-14-T-D supports -55°C to 105°C. The 3M 929715-11-08-EU supports -40°C to 105°C. Selection depends on application temperature requirements.

Contact Finish: The original part specifies gold or gold GXT™ finish on mating contacts. The 929715-11-08-EU and TSW-108-14-L-D and TSW-108-14-S-D maintain gold mating contact finish. The TSW-108-14-T-D uses tin mating contact finish, which is suitable for general-purpose applications but differs from the original specification.

Inventory Availability: TSW-108-14-T-D has the highest inventory level at 2124 units, followed by TSW-108-14-L-D at 1373 units, 929715-11-08-EU at 1042 units, and the original 78548-516 at 877 units.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 78548-516 with any of these four parts without PCB redesign?

A: Yes. All substitute parts maintain identical mating pitch (0.100" / 2.54mm), row spacing (0.100" / 2.54mm), number of positions (16 in 2 rows), contact shape (square), and mounting method (through-hole). PCB footprints designed for the 78548-516 are mechanically compatible with all listed substitutes. Minor variations in post length (0.110" to 0.125") and overall contact length (0.530" to 0.543") fall within standard tolerance ranges for through-hole solder connections.

Q: What is the difference between the three Samtec TSW variants?

A: The TSW-108-14-L-D, TSW-108-14-S-D, and TSW-108-14-T-D differ primarily in contact finish specifications. The TSW-108-14-L-D has 10.0µin (0.25µm) gold mating finish. The TSW-108-14-S-D has 30.0µin (0.76µm) gold mating finish, providing thicker gold plating. The TSW-108-14-T-D uses tin mating finish instead of gold. All three share identical mechanical dimensions, pitch, and row spacing. Operating temperature ranges are -55°C to 125°C for L-D and S-D variants, and -55°C to 105°C for the T-D variant.

Q: Does the 3M 929715-11-08-EU use different insulation material than the original?

A: Yes. The 929715-11-08-EU uses Polycyclohexylenedimethylene Terephthalate (PCT) insulation material, while the original 78548-516 does not specify insulation material. The Samtec TSW variants use Polybutylene Terephthalate (PBT) insulation. Both PCT and PBT are high-performance thermoplastic materials suitable for connector applications and maintain the required UL94 V-0 flammability rating.

Q: Which substitute part should I choose if RoHS compliance is mandatory?

A: All four substitute parts are RoHS compliant (either RoHS Compliant or ROHS3 Compliant status). The original 78548-516 is RoHS non-compliant. If your application requires RoHS compliance, any of the four substitutes will satisfy this requirement.

Q: Are there any electrical performance differences between these parts?

A: The provided specifications do not include current rating or voltage rating data for the original 78548-516 or the TSW variants. The 929715-11-08-EU specifies a 2.5A current rating. All parts share identical contact material composition (phosphor bronze or copper alloy), contact shape (square), and pitch geometry, which are the primary determinants of electrical performance in connector applications. Differences in contact finish thickness and material do not significantly impact electrical characteristics for standard signal and power distribution applications.

Q: Can I mix different substitute parts on the same board?

A: Yes. All substitute parts are mechanically and electrically equivalent for the 16-position 2.54mm pitch header application. Mixing different manufacturers or variants on the same board is permissible from a functional standpoint, though standard engineering practice typically standardizes on a single part number per design to simplify procurement, inventory management, and assembly documentation.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message