SSQ-120-01-S-S Equivalent & Substitute Parts

Part Overview

The SSQ-120-01-S-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 mating contacts, tin-plated posts, and push-pull fastening. The part is currently active in production with 902 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling component interchangeability in applications where the main part may be unavailable or when design requirements permit alternative qualified sources.

Substiute Parts

SSQ-120-01-S-S

Samtec Inc.In Stock: 986SSQ-120-01-S-S Datasheet

Current PartRFQ

929850-01-20-RB

3MIn Stock: 1209929850-01-20-RB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 929850-01-20-RB (3M) qualifies as a substitute for the SSQ-120-01-S-S based on the following alignment of critical parameters:

• Connector Type & Position Count: Both are 20-position receptacles
• Pitch & Mounting: Identical 0.100" (2.54mm) pitch with through-hole solder termination
• Contact Configuration: Both feature forked contacts with gold mating finish and push-pull fastening
• Compliance: Both meet UL94 V-0 flammability and RoHS requirements
• Electrical Ratings: Both support the required voltage and current specifications for standard board-to-board interconnect applications

Substitution is valid where mechanical fit, electrical performance, and regulatory compliance are the determining factors. Variations in insulation height (0.335" vs 0.325"), contact post length (0.104" vs 0.125"), and operating temperature ranges reflect design differences between manufacturers but do not preclude functional equivalence in applications where these parameters fall within acceptable tolerances.

Parameter Comparison

Engineering Selection Recommendations

Both the SSQ-120-01-S-S and 929850-01-20-RB are active production parts with full regulatory compliance (UL94 V-0, RoHS, REACH). Selection between these parts should be based on:

• Thermal Requirements: The SSQ-120-01-S-S supports -55°C to 125°C; the 929850-01-20-RB supports -40°C to 105°C. Applications requiring extended low-temperature operation below -40°C or sustained operation above 105°C necessitate the Samtec part.
• Mechanical Fit: The 0.010" (0.26mm) difference in insulation height and 0.021" (0.54mm) difference in contact post length may affect PCB layout and mating interface clearances. Verify mechanical compatibility with mating connectors and PCB design constraints.
• Voltage Specifications: The 929850-01-20-RB provides higher voltage rating (1500V) compared to the SSQ-120-01-S-S (465VAC, 655VDC). Applications requiring voltage ratings above 655VDC should use the 3M part.
• Inventory Availability: SSQ-120-01-S-S has 902 units in stock; 929850-01-20-RB has 1187 units in stock.

Frequently Asked Questions (FAQ)

Q: Can the 929850-01-20-RB directly replace the SSQ-120-01-S-S in existing designs?

A: Direct replacement is possible if the application operates within the 929850-01-20-RB's temperature range (-40°C to 105°C) and voltage rating (1500V). Verify mechanical fit with mating connectors, as the insulation height and contact post length differ slightly between the two parts.

Q: What are the critical parameters that define substitution eligibility?

A: Substitution is valid when the following parameters match: connector type (receptacle), position count (20), pitch (0.100"), contact type (forked), mounting method (through-hole solder), fastening type (push-pull), and contact finish (gold mating, tin post). Both parts meet these criteria.

Q: Are there any compliance or certification differences between these parts?

A: Both parts are UL94 V-0 rated, RoHS compliant, and REACH unaffected. The SSQ-120-01-S-S is ROHS3 compliant; the 929850-01-20-RB is RoHS compliant. Both meet current regulatory requirements for electronic component applications.

Q: What is the impact of the different operating temperature ranges?

A: The SSQ-120-01-S-S operates from -55°C to 125°C, while the 929850-01-20-RB operates from -40°C to 105°C. Applications requiring operation below -40°C or above 105°C must use the Samtec part. Standard commercial and industrial applications typically operate within the 929850-01-20-RB range.

Q: How do the voltage ratings differ, and does this affect substitution?

A: The SSQ-120-01-S-S is rated for 465VAC and 655VDC. The 929850-01-20-RB is rated for 1500V. The 3M part provides higher voltage capability and is suitable for applications requiring voltage ratings above 655VDC. For applications at or below 655VDC, both parts are electrically equivalent.

Q: Are there mechanical compatibility concerns with the post length difference?

A: The contact post length differs by 0.021" (0.54mm): SSQ-120-01-S-S at 0.104" and 929850-01-20-RB at 0.125". This variation may affect solder joint formation and PCB trace routing. Verify compatibility with PCB thickness, solder mask design, and mating connector specifications before substitution.