SSQ-120-23-S-D Equivalent & Substitute Parts

Part Overview

The SSQ-120-23-S-D is a 40-position receptacle connector manufactured by Samtec Inc., designed for board-to-board or cable applications with 0.100" (2.54mm) pitch spacing. This through-hole connector features gold-plated mating contacts and tin-plated posts, operating across -55°C to 125°C with UL94 V-0 flammability rating. The part is currently active in production with 630 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling component interchangeability for procurement flexibility or inventory management.

Substiute Parts

SSQ-120-23-S-D

Samtec Inc.In Stock: 723SSQ-120-23-S-D Datasheet

Current PartRFQ

SSQ-120-03-S-D

Samtec Inc.In Stock: 855SSQ-120-03-S-D Datasheet

SimilarRFQ

SSQ-120-03-S-D

Samtec Inc.In Stock: 855SSQ-120-03-S-D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SSQ-120-23-S-D is determined by strict alignment of the following critical parameters:

• Connector type (Receptacle)
• Number of positions (40)
• Pitch spacing (0.100" / 2.54mm)
• Number of rows (2)
• Row spacing (0.100" / 2.54mm)
• Mounting method (Through Hole)
• Termination type (Solder)
• Contact configuration (Forked)
• Mating contact finish (Gold)
• Post contact finish (Tin)
• Operating temperature range (-55°C ~ 125°C)
• Voltage rating (465VAC, 655VDC)
• Flammability rating (UL94 V-0)
• Insulation material (Liquid Crystal Polymer)
• RoHS compliance (ROHS3)

The identified substitute part SSQ-120-03-S-D meets all these criteria, confirming functional and mechanical equivalence within the SSQ series.

Parameter Comparison

Engineering Selection Recommendations

Both SSQ-120-23-S-D and SSQ-120-03-S-D are active production parts from Samtec Inc. with identical electrical and mechanical specifications. Selection between these parts is based on inventory availability and procurement lead times. Both parts maintain ROHS3 compliance and UL94 V-0 flammability certification, meeting regulatory requirements for industrial and commercial applications. The SSQ-120-03-S-D currently has higher inventory availability (844 units) compared to SSQ-120-23-S-D (630 units), which may influence procurement decisions for high-volume requirements.

Frequently Asked Questions (FAQ)

Q: Are SSQ-120-23-S-D and SSQ-120-03-S-D mechanically interchangeable?

A: Yes. Both connectors share identical mechanical dimensions, including 0.100" (2.54mm) pitch spacing, 40-position configuration, 2-row layout, 0.335" insulation height, and 0.394" post contact length. They mount identically in through-hole PCB applications.

Q: Do these parts have the same electrical ratings?

A: Yes. Both parts are rated for 465VAC and 655VDC with identical contact materials (phosphor bronze) and finishes (gold mating, tin post). Operating temperature range is -55°C to 125°C for both.

Q: What is the difference between SSQ-120-23-S-D and SSQ-120-03-S-D?

A: The parts are functionally equivalent. The difference in part number suffix reflects internal Samtec manufacturing or packaging variations. Both are ROHS3 compliant and UL94 V-0 rated.

Q: Can I substitute SSQ-120-03-S-D for SSQ-120-23-S-D in existing designs?

A: Yes. The parts are electrically and mechanically equivalent with identical pin configurations, contact finishes, and electrical ratings. No design modifications are required.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical certifications: ROHS3 compliance, UL94 V-0 flammability rating, and EAR99 export classification.

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

A: SSQ-120-23-S-D has MSL not applicable. SSQ-120-03-S-D has MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for either part.