SIP050-1X21-160BLF Equivalent & Substitute Parts

Part Overview

The SIP050-1X21-160BLF is a 21-position SIP (Single In-line Package) socket manufactured by Amphenol ICC (FCI). This through-hole connector features gold-plated mating contacts and is designed for IC and transistor applications. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system support and component procurement.

Substiute Parts

SIP050-1X21-160BLF

Amphenol ICC (FCI)In Stock: 860SIP050-1X21-160BLF Datasheet

Current PartRFQ

346-43-121-41-013000

Mill-Max Manufacturing Corp.In Stock: 917346-43-121-41-013000 Datasheet

MFR RecommendedRFQ

SL-121-G-12

Samtec Inc.In Stock: 805SL-121-G-12 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SIP050-1X21-160BLF are identified based on the following critical parameters that determine functional compatibility:

• 21-position configuration (1 x 21 arrangement)
• 0.100" (2.54mm) mating pitch
• Gold contact finish on mating surfaces
• Beryllium copper mating contact material
• Through-hole mounting capability
• MSL 1 rating

Two substitute parts meet these core electrical and mechanical requirements:

346-43-121-41-013000 (Mill-Max Manufacturing Corp.) maintains identical mating specifications with press-fit termination and extended post length (0.175" vs. 0.095").

SL-121-G-12 (Samtec Inc.) provides a receptacle connector configuration with identical mating pitch and contact finish, featuring solder termination and board-to-board connectivity.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are active products with current manufacturing support, addressing the obsolescence status of the original SIP050-1X21-160BLF.

346-43-121-41-013000 is recommended for direct socket applications requiring identical form factor and mating characteristics. The press-fit termination provides an alternative to solder attachment, with extended post length (0.175") accommodating thicker PCB assemblies. RoHS3 compliance is confirmed.

SL-121-G-12 is recommended for board-to-board receptacle applications. This part features solder termination matching the original design and provides identical mating pitch and contact specifications. RoHS3 compliance is confirmed. The receptacle configuration suits applications requiring mated connector pairs.

Both parts maintain MSL 1 rating and REACH compliance consistent with the original component.

Frequently Asked Questions (FAQ)

Q: Can 346-43-121-41-013000 directly replace SIP050-1X21-160BLF in existing designs?

A: Electrical and mechanical compatibility is confirmed for mating pitch (0.100"), contact count (21), contact finish (gold), and contact material (beryllium copper). The primary design consideration is termination method: 346-43-121-41-013000 uses press-fit termination versus solder termination on the original. PCB pad design must accommodate this difference. Post length differs (0.175" vs. 0.095"), which may affect PCB thickness compatibility.

Q: What is the functional difference between the socket and receptacle configurations?

A: SIP050-1X21-160BLF and 346-43-121-41-013000 are socket configurations designed to accept male pins. SL-121-G-12 is a receptacle connector designed for board-to-board mating with complementary male connectors. Selection depends on application architecture: socket for IC pin insertion, receptacle for connector-based interconnection.

Q: Are all three parts RoHS compliant?

A: SIP050-1X21-160BLF does not specify RoHS status. Both 346-43-121-41-013000 and SL-121-G-12 are RoHS3 compliant, meeting current regulatory requirements for new designs.

Q: What is the inventory status for these parts?

A: SIP050-1X21-160BLF has 793 pieces in stock (obsolete status). 346-43-121-41-013000 has 902 pieces available. SL-121-G-12 has 789 pieces available. Both substitutes are actively manufactured.

Q: Do all parts share the same moisture sensitivity rating?

A: Yes. SIP050-1X21-160BLF, 346-43-121-41-013000, and SL-121-G-12 all carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.