SSM-120-L-DV-A-K Equivalent & Substitute Parts

Part Overview

The SSM-120-L-DV-A-K is a 40-position rectangular receptacle connector manufactured by Samtec Inc. as part of the Tiger Claw™ SSM series. This surface mount, pass-through connector features gold-plated female sockets with 0.100" (2.54mm) pitch and is designed for board-to-board or cable applications. The part is currently active in production with 1105 units in stock. Alternative components may be required due to design changes, manufacturing availability, or specific application requirements such as mounting type or current rating modifications.

Substiute Parts

SSM-120-L-DV-A-K

Samtec Inc.In Stock: 1138SSM-120-L-DV-A-K Datasheet

Current PartRFQ

7-534206-0

TE Connectivity AMP ConnectorsIn Stock: 22147-534206-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 7-534206-0 (TE Connectivity AMP Connectors AMPMODU Mod II series) is functionally equivalent based on the following core parameters:

• Connector Configuration: Both are 40-position receptacle connectors with female sockets
• Pitch and Spacing: Both maintain 0.100" (2.54mm) mating pitch and 0.100" (2.54mm) row spacing
• Contact Finish: Both feature gold-plated mating contacts
• Termination Method: Both use solder termination
• Fastening Type: Both employ push-pull fastening
• Contact Material: Both use phosphor bronze contacts
• Insulation Color: Both have black insulation
• Moisture Sensitivity: Both rated MSL 1 (Unlimited)
• RoHS Compliance: Both meet RoHS standards

The primary difference is the mounting type: the main part is surface mount while the substitute is through-hole. This distinction affects PCB layout and assembly process but does not impact electrical compatibility for applications where through-hole mounting is acceptable.

Parameter Comparison

Engineering Selection Recommendations

Both the SSM-120-L-DV-A-K and 7-534206-0 are active production components with full RoHS compliance and unlimited moisture sensitivity ratings, making them suitable for standard industrial applications.

Selection Criteria:

• Surface Mount Requirement: Use SSM-120-L-DV-A-K. The main part is optimized for SMD assembly processes with board guide and pick-and-place features.

• Through-Hole Requirement: Use 7-534206-0. The substitute is designed for through-hole PCB mounting and offers extended lower operating temperature range (-65°C vs. -55°C).

• High Current Applications: Use SSM-120-L-DV-A-K. The main part supports 5.2A per contact, significantly higher than the substitute's 2A rating.

• High Voltage Applications: Use SSM-120-L-DV-A-K. The main part specifies 405VAC and 572VDC ratings; the substitute does not provide voltage specifications.

• Mechanical Robustness: The main part uses Liquid Crystal Polymer (LCP) insulation; the substitute uses polyester with glass fill. Both are suitable for standard applications.

Frequently Asked Questions (FAQ)

Q: Can 7-534206-0 replace SSM-120-L-DV-A-K in a surface mount assembly?

A: No. The substitute is a through-hole component and cannot be used in surface mount applications without significant PCB redesign. The mounting footprints are incompatible.

Q: Are the electrical contacts compatible between these two connectors?

A: Both connectors use phosphor bronze contacts with gold plating and maintain identical 0.100" (2.54mm) pitch. However, the main part supports 5.2A per contact while the substitute supports only 2A per contact. Applications requiring higher current must use the main part.

Q: What is the voltage rating difference?

A: The SSM-120-L-DV-A-K specifies 405VAC and 572VDC ratings. The 7-534206-0 does not provide voltage specifications in the available data. For applications with defined voltage requirements, the main part is the specified choice.

Q: Can I use the substitute in a redesigned through-hole layout?

A: Yes, if your application permits through-hole mounting and current requirements do not exceed 2A per contact. Both parts maintain identical pitch, row spacing, and contact configuration, ensuring mechanical and electrical compatibility in through-hole designs.

Q: What is the operating temperature range difference?

A: The main part operates from -55°C to 125°C. The substitute operates from -65°C to 125°C, providing a 10°C lower minimum temperature capability. For applications below -55°C, the substitute is required.

Q: Are both parts RoHS compliant?

A: Yes. The SSM-120-L-DV-A-K is ROHS3 compliant. The 7-534206-0 is RoHS compliant. Both meet RoHS requirements and carry MSL 1 (Unlimited) moisture sensitivity ratings.