SSQ-120-21-G-S Equivalent & Substitute Parts

Part Overview

The SSQ-120-21-G-S is a 20-position receptacle connector manufactured by Samtec Inc., designed for board-to-board or cable applications with 0.100" (2.54mm) pitch through-hole mounting. This connector features gold-plated forked contacts, solder termination, and push-pull fastening. The part is currently active in production with 857 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same connector series, ensuring functional interchangeability in applications requiring this connector type.

Substiute Parts

SSQ-120-21-G-S

Samtec Inc.In Stock: 901SSQ-120-21-G-S Datasheet

Current PartRFQ

SSQ-120-01-G-S

Samtec Inc.In Stock: 1233SSQ-120-01-G-S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Connector series (SSQ)
• Number of positions (20)
• Pitch specification (0.100" / 2.54mm)
• Connector type (Receptacle)
• Contact finish (Gold)
• Mounting method (Through Hole)
• Voltage and temperature ratings
• Compliance certifications (ROHS3, UL94 V-0)

The identified substitute SSQ-120-01-G-S maintains all these parameters, confirming functional and mechanical interchangeability within the SSQ rectangular connector family.

Parameter Comparison

Engineering Selection Recommendations

Both SSQ-120-21-G-S and SSQ-120-01-G-S 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-G-S has 1184 units in stock compared to 857 units for SSQ-120-21-G-S. Both parts maintain ROHS3 compliance and UL94 V-0 flammability certification, meeting regulatory requirements for industrial and commercial applications. The parts are functionally equivalent for all board-to-board and cable connector applications within the specified voltage and temperature ranges.

Frequently Asked Questions (FAQ)

Q: Can SSQ-120-01-G-S be used as a direct replacement for SSQ-120-21-G-S?

A: Yes. Both parts are identical in electrical and mechanical specifications, including connector type, position count, pitch, contact finish, mounting method, and operating parameters. Direct substitution is supported without design modification.

Q: Are there any differences in the connector footprint or PCB layout requirements?

A: No. Both connectors share identical pitch (0.100" / 2.54mm), insulation height (0.335" / 8.51mm), and contact dimensions, requiring no PCB layout changes.

Q: Do both parts meet the same compliance standards?

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

Q: What is the difference between these two part numbers if all specifications are identical?

A: The part numbers reflect different manufacturing or packaging configurations within the SSQ series. The suffix variations (-21-G-S versus -01-G-S) indicate different internal designations, but the functional and electrical characteristics remain equivalent.

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

A: Yes. Both connectors operate across the -55°C to 125°C temperature range and are rated for 465VAC and 655VDC, supporting industrial and harsh environment applications.