SSQ-139-24-G-D Equivalent & Substitute Parts

Part Overview

The SSQ-139-24-G-D is a 78-position receptacle connector manufactured by Samtec Inc., designed for board-to-board or cable applications. This connector features 0.100" (2.54mm) pitch mating with through-hole solder termination and push-pull fastening. The part is currently active in production with full inventory availability. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector series, ensuring functional interchangeability in applications where the primary part number is unavailable or inventory constraints require alternative sourcing.

Substiute Parts

SSQ-139-24-G-D

Samtec Inc.In Stock: 1117SSQ-139-24-G-D Datasheet

Current PartRFQ

SSQ-139-04-G-D

Samtec Inc.In Stock: 823SSQ-139-04-G-D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SSQ-139-24-G-D are identified based on strict equivalence across the following critical parameters:

• Connector type (Receptacle)
• Number of positions (78)
• Pitch specification (0.100" / 2.54mm mating pitch)
• Row configuration (2 rows with 0.100" row spacing)
• Mounting method (Through Hole)
• Termination type (Solder)
• Fastening mechanism (Push-Pull)
• Contact finish (Gold)
• Voltage and temperature ratings (465VAC, 655VDC; -55°C ~ 125°C)
• Compliance certifications (ROHS3, UL94 V-0)

The SSQ-139-04-G-D meets all these criteria and is classified as a direct substitute within the SSQ series. Both parts share identical electrical and mechanical specifications, differing only in internal manufacturing or packaging designations that do not affect functional performance in the application.

Parameter Comparison

Engineering Selection Recommendations

Both the SSQ-139-24-G-D and SSQ-139-04-G-D are active production parts from Samtec Inc. with full ROHS3 compliance and UL94 V-0 flammability certification. Selection between these parts should be based on inventory availability and lead time requirements, as all electrical and mechanical parameters are identical. The SSQ-139-24-G-D currently maintains higher inventory (1032 pcs) compared to the SSQ-139-04-G-D (746 pcs), making it the preferred choice for immediate procurement. The SSQ-139-04-G-D serves as a viable alternative when primary part availability is constrained. Both parts are suitable for applications requiring 78-position board-to-board or cable connectivity with push-pull fastening in temperature ranges from -55°C to 125°C and voltage ratings up to 465VAC or 655VDC.

Frequently Asked Questions (FAQ)

Q: Can SSQ-139-04-G-D be used as a direct replacement for SSQ-139-24-G-D?

A: Yes. Both parts are functionally equivalent across all electrical and mechanical parameters. They share identical connector type, position count, pitch, row configuration, mounting method, termination type, fastening mechanism, contact finish, voltage rating, temperature range, and compliance certifications.

Q: What are the key parameters that determine substitutability for this connector?

A: Substitutability is determined by matching: connector type (receptacle), number of positions (78), mating pitch (0.100"), row count and spacing (2 rows at 0.100"), mounting type (through hole), termination (solder), fastening type (push-pull), contact finish (gold), voltage rating (465VAC/655VDC), operating temperature range (-55°C to 125°C), and compliance status (ROHS3, UL94 V-0).

Q: Are there any differences in mechanical dimensions between these parts?

A: No. Both parts have identical insulation height (0.335"), contact length (0.584"), and all other mechanical specifications.

Q: What is the difference between SSQ-139-24-G-D and SSQ-139-04-G-D?

A: The difference lies in the internal designation within the SSQ-139 base product number. This designation does not affect electrical performance, mechanical compatibility, or functional application. Both parts are interchangeable.

Q: Are both parts suitable for high-temperature applications?

A: Yes. Both parts operate across the full temperature range of -55°C to 125°C and maintain their electrical and mechanical specifications throughout this range.

Q: What compliance certifications apply to these connectors?

A: Both parts are ROHS3 compliant and carry UL94 V-0 flammability rating for the insulation material (Liquid Crystal Polymer).