SDL-102-T-12 Equivalent & Substitute Parts

Part Overview

The SDL-102-T-12 is a 4-position receptacle connector manufactured by Samtec Inc., designed for board-to-board applications with 0.100" (2.54mm) pitch spacing. This connector features through-hole solder termination, dual-row configuration, and gold-plated mating contacts. The part is currently active in production with 1,036 units in stock. Substitute parts are identified when electrical and mechanical parameters align with the original specification, enabling direct replacement in applications where the primary part is unavailable or inventory constraints require alternative sourcing.

Key Parameters

Parameter	Value
Manufacturer Part Number	SDL-102-T-12
Manufacturer	Samtec Inc.
Series	SDL
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	4
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Material	Beryllium Copper
Contact Finish - Mating	Gold
Insulation Material	Liquid Crystal Polymer (LCP)
Insulation Color	Black
Operating Temperature	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the SDL-102-T-12 is determined by strict alignment of the following critical parameters:

Connector type (Receptacle)
Contact type (Female Socket)
Number of positions (4)
Number of rows (2)
Pitch spacing (0.100" / 2.54mm)
Row spacing (0.100" / 2.54mm)
Mounting type (Through Hole)
Termination method (Solder)
Fastening type (Push-Pull)
Contact material (Beryllium Copper)
Insulation material (Liquid Crystal Polymer)
Operating temperature range (-55°C ~ 125°C)
RoHS compliance status (ROHS3 Compliant)

The SDL-102-G-12 meets all substitution criteria, with the distinction that it includes gold plating on the post contact finish, whereas the SDL-102-T-12 does not specify post contact finish plating.

Parameter Comparison

Parameter	SDL-102-T-12	SDL-102-G-12
Manufacturer Part Number	SDL-102-T-12	SDL-102-G-12
Manufacturer	Samtec Inc.	Samtec Inc.
Series	SDL	SDL
Connector Type	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket
Number of Positions	4	4
Number of Rows	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Fastening Type	Push-Pull	Push-Pull
Contact Finish - Mating	Gold (30.0µin / 0.76µm)	Gold (30.0µin / 0.76µm)
Contact Finish - Post	Not specified	Gold (10.0µin / 0.25µm)
Insulation Material	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)
Insulation Color	Black	Black
Insulation Height	0.095" (2.41mm)	0.095" (2.41mm)
Contact Length - Post	0.095" (2.41mm)	0.095" (2.41mm)
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C
Contact Material	Beryllium Copper	Beryllium Copper
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Active	Active
Inventory	1,036 Pcs	746 Pcs

Engineering Selection Recommendations

Both the SDL-102-T-12 and SDL-102-G-12 are active production parts from Samtec Inc. with full ROHS3 compliance and REACH unaffected status. The parts are functionally equivalent for board-to-board receptacle applications requiring 4-position dual-row 0.100" pitch connectivity with through-hole solder termination.

The SDL-102-G-12 provides additional gold plating on the post contact finish (10.0µin / 0.25µm), whereas the SDL-102-T-12 does not specify post contact finish treatment. This distinction does not affect mating interface performance, as both parts maintain identical mating contact finish specifications (30.0µin / 0.76µm gold).

Selection between these parts should be based on inventory availability and specific application requirements regarding post contact finish specifications. Both parts operate across the identical temperature range (-55°C ~ 125°C) and maintain equivalent mechanical and electrical characteristics for standard board-to-board interconnect applications.

Frequently Asked Questions (FAQ)

Q: Can SDL-102-G-12 directly replace SDL-102-T-12 in existing designs?

A: Yes. Both parts share identical connector type, contact configuration, pitch spacing, mounting method, and termination specifications. The SDL-102-G-12 includes gold plating on the post contact finish, which does not affect compatibility with mating connectors or PCB assembly processes.

Q: What is the difference between SDL-102-T-12 and SDL-102-G-12?

A: The primary difference is the post contact finish specification. SDL-102-G-12 specifies gold plating on the post (10.0µin / 0.25µm), while SDL-102-T-12 does not specify post contact finish treatment. Both parts maintain identical mating contact finish (30.0µin / 0.76µm gold) and all other electrical and mechanical parameters.

Q: Are both parts RoHS compliant?

A: Yes. Both SDL-102-T-12 and SDL-102-G-12 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing.

Q: What is the operating temperature range for these connectors?

A: Both parts operate across -55°C to 125°C, suitable for industrial and commercial applications requiring extended temperature performance.

Q: Are these connectors suitable for high-reliability applications?

A: Both parts feature beryllium copper contacts with gold plating, push-pull fastening, and Liquid Crystal Polymer insulation, providing robust performance for standard board-to-board interconnect applications. Specific high-reliability requirements should be evaluated against application-specific standards and certifications.

Q: What is the moisture sensitivity level for these parts?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.

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