RSM-122-02-L-S-K Equivalent & Substitute Parts

Part Overview

The RSM-122-02-L-S-K is a 22-position receptacle connector manufactured by Samtec Inc., designed for board-to-board surface mount applications. This connector features a 0.050" (1.27mm) pitch with gold-plated mating contacts and solder termination. The product is currently active and maintains inventory availability of 674 pieces in new original condition. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector series, enabling design flexibility and supply chain optimization.

Substiute Parts

RSM-122-02-L-S-K

Samtec Inc.In Stock: 730RSM-122-02-L-S-K Datasheet

Current PartRFQ

RSM-122-02-L-S-P

Samtec Inc.In Stock: 1062RSM-122-02-L-S-P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RSM-122-02-L-S-K is determined by strict equivalence across the following critical parameters:

• Series and Base Product Number: Both parts must belong to the RSM series with base product number RSM-122
• Number of Positions: Exactly 22 positions required
• Pitch - Mating: Exactly 0.050" (1.27mm) required
• Connector Type: Receptacle configuration
• Contact Type: Female socket contacts
• Mounting Type: Surface mount only
• Termination Method: Solder termination
• Current Rating: 3.1A per contact minimum
• Operating Temperature Range: -55°C ~ 125°C
• Contact Finish - Mating: Gold plating
• RoHS Compliance: ROHS3 Compliant
• Product Status: Active

The identified substitute part RSM-122-02-L-S-P maintains full equivalence across all critical electrical and mechanical parameters, differing only in fastening type designation while preserving push-pull fastening functionality.

Parameter Comparison

Engineering Selection Recommendations

Both RSM-122-02-L-S-K and RSM-122-02-L-S-P are active products with full ROHS3 compliance and UL94 V-0 flammability certification. Selection between these parts should be based on inventory availability and supply chain requirements. The RSM-122-02-L-S-P maintains higher inventory levels at 1011 pieces compared to 674 pieces for the RSM-122-02-L-S-K, providing improved supply continuity. Both parts meet identical electrical specifications, mechanical dimensions, and environmental operating requirements. No performance differentiation exists between these alternatives for applications within the specified operating temperature range of -55°C to 125°C and current rating of 3.1A per contact.

Frequently Asked Questions (FAQ)

Q: Are RSM-122-02-L-S-K and RSM-122-02-L-S-P mechanically interchangeable?

A: Yes. Both connectors share identical mechanical dimensions, including 22-position configuration, 0.050" (1.27mm) pitch, 0.240" (6.10mm) insulation height, and surface mount footprint. They are directly interchangeable in PCB layouts.

Q: Do these parts have the same electrical performance?

A: Yes. Both parts maintain identical current rating of 3.1A per contact, operating temperature range of -55°C to 125°C, and contact finish specifications with 10.0µin (0.25µm) gold plating on mating surfaces.

Q: What is the difference between the K and P designations in the part numbers?

A: The K and P designations represent different fastening type codes within the RSM-122 series, but both maintain push-pull fastening functionality. All other electrical and mechanical parameters remain equivalent.

Q: Are both parts RoHS compliant?

A: Yes. Both RSM-122-02-L-S-K and RSM-122-02-L-S-P are ROHS3 compliant and carry UL94 V-0 flammability certification.

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

A: Both parts have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without special moisture control requirements.

Q: Can these connectors be used in high-temperature applications?

A: Yes. Both parts are rated for continuous operation from -55°C to 125°C, suitable for industrial and automotive applications within this temperature envelope.