SSQ-120-21-F-D Equivalent & Substitute Parts

Part Overview

The SSQ-120-21-F-D is a 40-position rectangular receptacle connector manufactured by Samtec Inc., designed for board-to-board or cable applications with 0.100" (2.54mm) pitch spacing. This connector features through-hole solder termination, gold-plated mating contacts, and operates across -55°C to 125°C. The part is currently active in production with 829 units in stock. Substitute parts are identified when electrical and mechanical parameters remain functionally equivalent, enabling component sourcing flexibility and supply chain continuity.

Substiute Parts

SSQ-120-21-F-D

Samtec Inc.In Stock: 857SSQ-120-21-F-D Datasheet

Current PartRFQ

SSQ-120-01-F-D

Samtec Inc.In Stock: 1423SSQ-120-01-F-D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SSQ-120-21-F-D is determined by strict equivalence across the following critical parameters:

• Connector type (Receptacle)
• Position count (40 positions)
• Pitch spacing (0.100" mating pitch, 0.100" row spacing)
• Mounting method (Through Hole)
• Termination type (Solder)
• Contact finish on mating surface (Gold)
• Operating temperature range (-55°C ~ 125°C)
• Voltage rating (465VAC, 655VDC minimum)
• Flammability compliance (UL94 V-0)
• RoHS compliance status

The SSQ-120-01-F-D meets all substitution criteria as a functionally equivalent part within the same SSQ series from Samtec Inc.

Parameter Comparison

Engineering Selection Recommendations

Both SSQ-120-21-F-D and SSQ-120-01-F-D are active production parts from Samtec Inc. with identical electrical and mechanical specifications. Selection between these parts may be based on inventory availability: SSQ-120-01-F-D currently has 1,346 units in stock compared to 829 units for SSQ-120-21-F-D. Both parts maintain ROHS3 compliance and UL94 V-0 flammability certification, meeting regulatory requirements for equivalent applications. The parts are functionally interchangeable for board-to-board and cable connector applications requiring 40-position, 0.100" pitch receptacle connectors with gold-plated mating contacts and solder termination.

Frequently Asked Questions (FAQ)

Q: Are SSQ-120-21-F-D and SSQ-120-01-F-D mechanically compatible?

A: Yes. Both connectors share identical mechanical dimensions, including 0.335" insulation height, 0.104" contact post length, and 0.100" pitch spacing in a 2-row configuration. They are mechanically interchangeable 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 mating contact finish (Gold, 3.00µin thickness). Electrical performance is equivalent.

Q: What is the difference between SSQ-120-21-F-D and SSQ-120-01-F-D?

A: The parts are functionally equivalent. The difference in part number suffix (-21-F-D versus -01-F-D) reflects internal Samtec manufacturing or configuration codes. All specified electrical and mechanical parameters are identical.

Q: Are both parts RoHS compliant?

A: Yes. Both SSQ-120-21-F-D and SSQ-120-01-F-D are ROHS3 compliant and carry UL94 V-0 flammability certification.

Q: Can I use SSQ-120-01-F-D as a direct replacement for SSQ-120-21-F-D?

A: Yes. The SSQ-120-01-F-D is a direct functional substitute with no design or compatibility modifications required. Both parts operate across -55°C to 125°C and are suitable for identical applications.

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

A: Both parts operate from -55°C to 125°C, supporting applications across industrial and commercial temperature environments.