TE Connectivity 7-102618-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 7-102618-3 is a rectangular connector header designed for through-hole mounting applications. This connector features 50 positions arranged in 2 rows with 0.100" (2.54mm) pitch spacing, suitable for board-to-board or cable interconnections. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines. Substitute parts must maintain electrical and mechanical compatibility across core parameters including position count, pitch, mounting type, and current rating.

Key Parameters

Parameter	Value
Manufacturer Part Number	7-102618-3
Manufacturer	TE Connectivity AMP Connectors
Category	Rectangular Connectors
Connector Type	Header
Contact Type	Male Pin
Number of Positions	50
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Shrouding	Shrouded - 4 Wall
Current Rating	3A
Operating Temperature	-65°C ~ 105°C
Contact Material	Phosphor Bronze
Contact Finish - Mating	Gold
Contact Finish - Post	Tin
Insulation Material	Thermoplastic
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant
Product Status	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 7-102618-3 are selected based on strict electrical and mechanical compatibility criteria. All substitute parts must maintain the following core parameters:

Critical Matching Parameters:

Number of Positions: 50
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
Shrouding: Shrouded - 4 Wall
Current Rating: 3A
Contact Material: Phosphor Bronze
Contact Finish - Mating: Gold
Material Flammability Rating: UL94 V-0

Variable Parameters (Acceptable Differences): Substitute parts from the Samtec Inc. Flex Stack ZSS series differ in the following dimensions, which are application-dependent and do not affect core electrical compatibility:

Contact Length - Mating
Contact Length - Post
Overall Contact Length
Insulation Height
Fastening Type (Push-Pull vs. Detent Lock)
Contact Finish - Post (Gold or Tin)
Insulation Material (Polyester, Glass Filled vs. Thermoplastic)
Operating Temperature Range

All identified substitute parts are from active product lines with current availability and ROHS3 compliance status.

Parameter Comparison

Parameter	7-102618-3 (TE Connectivity)	ZSS-125-01-G-D-450 (Samtec)	ZSS-125-01-G-D-465 (Samtec)	ZSS-125-01-G-D-487 (Samtec)	ZSS-125-01-G-D-500 (Samtec)	ZSS-125-01-G-D-505 (Samtec)	ZSS-125-01-G-D-515 (Samtec)	ZSS-125-01-G-D-520 (Samtec)	ZSS-125-01-L-D-450 (Samtec)	ZSS-125-01-L-D-472 (Samtec)	ZSS-125-01-L-D-480 (Samtec)
Number of Positions	50	50	50	50	50	50	50	50	50	50	50
Number of Rows	2	2	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)	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)	0.100" (2.54mm)	0.100" (2.54mm)
Connector Type	Header	Header, Elevated	Header, Elevated	Header, Elevated	Header, Elevated	Header, Elevated	Header, Elevated	Header, Elevated	Header, Elevated	Header, Elevated	Header, Elevated
Contact Type	Male Pin	Male Pin	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	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Current Rating (Amps)	3A	3A	3A	3A	3A	3A	3A	3A	3A	3A	3A
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish Thickness - Mating	15.0µin (0.38µm)	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)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)
Contact Finish - Post	Tin	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Tin	Tin	Tin
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
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Discontinued at DiGi Electronics	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All identified Samtec Inc. Flex Stack ZSS series connectors are functionally equivalent substitutes for the discontinued TE Connectivity 7-102618-3. Selection among substitute parts should be based on specific application requirements related to post length and insulation height dimensions.

Samtec ZSS Series with Gold Post Finish (ZSS-125-01-G-D-xxx):

ZSS-125-01-G-D-450: Insulation height 0.450" (11.43mm), post length 0.180" (4.57mm)
ZSS-125-01-G-D-465: Insulation height 0.465" (11.81mm), post length 0.165" (4.19mm)
ZSS-125-01-G-D-487: Insulation height 0.487" (12.37mm), post length 0.143" (3.63mm)
ZSS-125-01-G-D-500: Insulation height 0.500" (12.70mm), post length 0.130" (3.30mm)
ZSS-125-01-G-D-505: Insulation height 0.505" (12.83mm), post length 0.125" (3.18mm)
ZSS-125-01-G-D-515: Insulation height 0.515" (13.08mm), post length 0.115" (2.92mm)
ZSS-125-01-G-D-520: Insulation height 0.520" (13.21mm), post length 0.110" (2.79mm)

Samtec ZSS Series with Tin Post Finish (ZSS-125-01-L-D-xxx):

ZSS-125-01-L-D-450: Insulation height 0.450" (11.43mm), post length 0.180" (4.57mm)
ZSS-125-01-L-D-472: Insulation height 0.472" (12.00mm), post length 0.158" (4.01mm)
ZSS-125-01-L-D-480: Insulation height 0.480" (12.19mm), post length 0.150" (3.81mm)

All substitute parts maintain active product status, ROHS3 compliance, and UL94 V-0 flammability rating. The choice between gold and tin post finishes depends on soldering process compatibility and application requirements. All parts are available in bulk packaging with current inventory levels exceeding 700 units.

Frequently Asked Questions (FAQ)

Q: Can Samtec ZSS series connectors directly replace the TE Connectivity 7-102618-3?

A: Yes. All Samtec ZSS-125-01 connectors listed maintain electrical and mechanical compatibility across critical parameters: 50 positions, 2 rows, 0.100" (2.54mm) pitch, through-hole solder termination, 3A current rating, and 4-wall shrouding. The primary differences are in post length and insulation height, which are application-dependent variables.

Q: What is the difference between ZSS-125-01-G-D and ZSS-125-01-L-D variants?

A: The "G" designation indicates gold plating on the post contact finish, while "L" indicates tin plating. The original TE Connectivity 7-102618-3 uses tin post finish. For direct functional equivalence with identical post finish, select ZSS-125-01-L-D variants. Gold post finish variants (ZSS-125-01-G-D) offer enhanced corrosion resistance and are suitable for applications requiring superior contact durability.

Q: How do I select the correct insulation height variant?

A: Insulation height is determined by the application's PCB thickness and component clearance requirements. The numeric suffix in the part number indicates insulation height in thousandths of an inch (e.g., ZSS-125-01-G-D-450 = 0.450" insulation height). Select the variant matching your board-to-board spacing or component layout constraints. All variants maintain identical electrical performance.

Q: Are all substitute parts RoHS compliant?

A: Yes. All Samtec ZSS series substitutes are ROHS3 compliant. The original TE Connectivity 7-102618-3 is RoHS compliant. Both compliance levels are acceptable for applications requiring RoHS certification.

Q: What is the operating temperature range difference?

A: The original TE Connectivity 7-102618-3 operates from -65°C to 105°C. All Samtec ZSS series substitutes operate from -55°C to 125°C. The Samtec variants provide a wider upper temperature range, making them suitable for higher-temperature applications while maintaining compatibility with standard operating conditions.

Q: Do the Samtec connectors use the same fastening mechanism?

A: No. The original TE Connectivity 7-102618-3 uses detent lock fastening, while all Samtec ZSS series substitutes use push-pull fastening. Both mechanisms provide secure mating and are functionally equivalent for board-to-board interconnection applications. Push-pull fastening offers easier engagement and disengagement during assembly and maintenance.

Q: What is the difference between standard and elevated connector types?

A: The original TE Connectivity 7-102618-3 is a standard header. All Samtec ZSS series substitutes are elevated headers, meaning the contact mating surface is raised above the insulation body. This elevation accommodates thicker PCBs and provides improved clearance for component placement. Electrical performance remains identical.

Q: Are there inventory considerations for substitute selection?

A: All listed Samtec ZSS series substitutes maintain active inventory levels ranging from 717 to 1,139 units. The original TE Connectivity 7-102618-3 is discontinued. For immediate availability and long-term supply assurance, Samtec substitutes are recommended.

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