TE Connectivity 102766-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 102766-1 is a 48-position receptacle connector from the AMPMODU Mod II series, designed for board-to-board applications with 0.100" (2.54mm) pitch spacing. This connector features through-hole solder termination, gold-plated mating contacts, and push-pull fastening. The product is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. The connector accommodates 40 loaded positions out of 48 total positions and is suitable for applications requiring reliable rectangular connector solutions with standard pitch spacing.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	48
Pitch - Mating	0.100" (2.54mm)
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Material Flammability Rating	UL94 V-0
Style	Board to Board

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 102766-1 is determined by the following critical parameters that must remain consistent:

Core Compatibility Parameters:

Connector type: Receptacle with female socket contacts
Position count: 48 positions
Pitch spacing: 0.100" (2.54mm) mating pitch with 0.100" row spacing
Mounting: Through-hole solder termination
Fastening: Push-pull mechanism
Style: Board-to-board configuration
Flammability: UL94 V-0 rating

Allowable Variations:

Contact finish on mating surface (gold or tin)
Insulation material composition (thermoplastic polyester vs. liquid crystal polymer)
Contact shape (square vs. circular)
Contact material (phosphor bronze vs. beryllium copper)
Insulation height and color
Contact post length (affects stacking height)
Product status (active substitutes acceptable for obsolete main part)
RoHS compliance status

Substitute parts are grouped based on these parameters. Parts with identical core specifications but different contact finishes, insulation materials, or post lengths are considered valid substitutes for applications where these variations do not impact system performance.

Parameter Comparison

Parameter	102766-1 (Main)	87606-324LF	87606-424LF	ESD-124-G-03	ESD-124-G-06	ESD-124-G-07	ESD-124-G-23	ESD-124-G-24	ESD-124-G-26	ESD-124-G-28	ESD-124-T-23
Manufacturer	TE Connectivity	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.
Connector Type	Receptacle	Receptacle	Receptacle	Elevated Socket	Elevated Socket	Elevated Socket	Elevated Socket	Elevated Socket	Elevated Socket	Elevated Socket	Elevated Socket
Contact Type	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket
Number of Positions	48	48	48	48	48	48	48	48	48	48	48
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 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 Finish - Mating	Gold	Gold	Tin	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish Thickness - Mating	10.0µin (0.25µm)	30.0µin (0.76µm)	78.7µin (2.00µm)	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)
Insulation Height	0.320" (8.13mm)	0.335" (8.51mm)	0.335" (8.51mm)	0.300" (7.62mm)	0.300" (7.62mm)	0.400" (10.16mm)	0.300" (7.62mm)	0.400" (10.16mm)	0.300" (7.62mm)	0.300" (7.62mm)	0.300" (7.62mm)
Contact Length - Post	0.115" (2.92mm)	0.114" (2.90mm)	0.114" (2.90mm)	0.153" (3.89mm)	0.215" (5.46mm)	0.265" (6.73mm)	0.115" (2.92mm)	0.115" (2.92mm)	0.215" (5.46mm)	0.365" (9.27mm)	0.115" (2.92mm)
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
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Amphenol ICC Dubox Series):

The Amphenol ICC 87606-324LF and 87606-424LF connectors are direct functional equivalents to the TE Connectivity 102766-1. Both parts maintain identical core specifications: 48-position receptacle configuration, 0.100" pitch spacing, two-row layout, through-hole solder termination, and push-pull fastening. The 87606-324LF features gold mating contacts matching the original specification, while the 87606-424LF provides tin mating contacts as an alternative. Both Amphenol ICC parts are active products with RoHS compliance, addressing the obsolescence of the original TE Connectivity part. The Dubox series insulation material differs from the original (glass-filled thermoplastic vs. glass-filled polyester), but both materials meet UL94 V-0 flammability requirements. Contact post length remains consistent at 0.114" (2.90mm), providing equivalent stacking height performance.

Secondary Substitutes (Samtec ESD Series):

The Samtec ESD-124 series elevated socket connectors provide functional equivalence with design variations. All ESD variants maintain the 48-position, 0.100" pitch, two-row configuration with through-hole solder termination and push-pull fastening. The ESD series uses liquid crystal polymer (LCP) insulation material and beryllium copper contacts with circular geometry, differing from the original phosphor bronze square contacts. Multiple ESD variants accommodate different application requirements through variable contact post lengths (0.115" to 0.365") and insulation heights (0.300" to 0.400"), enabling selection based on specific stacking height and clearance constraints. All ESD parts are active products with ROHS3 compliance and operating temperature range of -55°C to 125°C. The ESD-124-T-23 variant provides tin post finish as an alternative to gold.

Selection Criteria:

For direct replacement in existing designs, the Amphenol ICC 87606-324LF is the primary recommendation due to identical contact post length and gold mating finish matching the original specification. The 87606-424LF serves applications where tin mating contacts are acceptable. For new designs or applications requiring extended operating temperature specifications, the Samtec ESD series provides active product status with enhanced environmental ratings. Selection among ESD variants depends on required stacking height and clearance requirements, with ESD-124-G-23 and ESD-124-G-24 providing post lengths closest to the original 0.115" specification.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol ICC 87606-324LF directly replace the TE Connectivity 102766-1 in existing assemblies?

A: Yes. The 87606-324LF maintains identical core specifications: 48 positions, 0.100" pitch spacing, two-row configuration, through-hole solder termination, push-pull fastening, and gold mating contact finish. Contact post length is 0.114" (2.90mm) compared to the original 0.115" (2.92mm), a difference of 0.001" that does not impact mechanical or electrical performance. The connector is fully compatible with existing mating plugs and PCB layouts designed for the 102766-1.

Q: What is the difference between the 87606-324LF and 87606-424LF?

A: Both connectors are functionally identical except for mating contact finish. The 87606-324LF features gold-plated mating contacts (30.0µin thickness), while the 87606-424LF features tin-plated mating contacts (78.7µin thickness). Selection depends on application requirements for contact corrosion resistance and electrical conductivity. Gold finish provides superior corrosion resistance; tin finish offers cost optimization for non-corrosive environments.

Q: Why are the Samtec ESD-124 series connectors classified as substitutes despite different contact geometry?

A: The ESD-124 series maintains all critical functional parameters: 48-position receptacle configuration, 0.100" pitch spacing, two-row layout, through-hole solder termination, and push-pull fastening. The contact shape difference (circular vs. square) and material composition (beryllium copper vs. phosphor bronze) do not affect mating compatibility with standard 0.100" pitch plugs. The ESD series provides active product status with enhanced environmental specifications, making it suitable for applications where the original obsolete part requires replacement with a modern equivalent.

Q: How do I select the correct ESD-124 variant?

A: ESD-124 variants differ in contact post length and insulation height, which determine stacking height when mated. Select based on available clearance above the connector: ESD-124-G-23 and ESD-124-T-23 (0.115" post length, 0.300" insulation height) match the original 102766-1 stacking profile. ESD-124-G-06 and ESD-124-G-26 (0.215" post length) provide increased clearance. ESD-124-G-07 (0.265" post length, 0.400" insulation height) and ESD-124-G-28 (0.365" post length) accommodate applications requiring maximum standoff distance. ESD-124-G-24 (0.115" post length, 0.400" insulation height) provides increased insulation height with original post length.

Q: Are all substitute parts RoHS compliant?

A: The original TE Connectivity 102766-1 is RoHS non-compliant. All substitute parts listed are RoHS compliant: Amphenol ICC 87606 series parts are RoHS compliant, and all Samtec ESD-124 variants are ROHS3 compliant. This compliance upgrade is beneficial for applications subject to RoHS regulations and environmental standards.

Q: What is the operating temperature range for each substitute?

A: The original 102766-1 does not specify an operating temperature range. The Amphenol ICC 87606 series does not specify operating temperature. The Samtec ESD-124 series specifies -55°C to 125°C operating temperature, providing defined thermal performance for applications requiring extended temperature operation.

Q: Can I use the 87606-424LF (tin finish) as a direct replacement for the 102766-1 (gold finish)?

A: Yes, the 87606-424LF is mechanically and electrically compatible with the 102766-1. The tin mating contact finish differs from the original gold finish, which may affect corrosion resistance in high-humidity or corrosive environments. For applications where contact corrosion resistance is critical, the 87606-324LF with gold finish is recommended. For standard industrial applications, the 87606-424LF provides equivalent performance.

Q: What is the difference between "Receptacle" and "Elevated Socket" connector types?

A: Both connector types are female socket receptacles designed for board-to-board applications. The primary difference is insulation structure: standard receptacles have insulation flush with the contact plane, while elevated sockets feature insulation that extends above the contact plane, providing increased clearance and mechanical protection. This structural difference does not affect mating compatibility with standard 0.100" pitch plugs.

Q: Are there any packaging differences between substitute parts?

A: Yes. The TE Connectivity 102766-1 packaging is not specified. The Amphenol ICC 87606 series is supplied in tube packaging. The Samtec ESD-124 series is supplied in bulk or unspecified packaging. Packaging differences do not affect connector performance but may impact handling, storage, and ordering procedures.

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