BSW-124-04-S-D Equivalent & Substitute Parts

Part Overview

The BSW-124-04-S-D is a 48-position rectangular receptacle connector manufactured by Samtec Inc., designed for board-to-board applications with 0.100" (2.54mm) pitch spacing. This breakaway connector features gold-plated mating contacts, through-hole bottom mount termination, and operates across -55°C to 125°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified to provide procurement flexibility, support supply chain continuity, and accommodate design variations where mechanical or electrical parameters remain within acceptable tolerances for the application.

Substiute Parts

BSW-124-04-S-D

Samtec Inc.In Stock: 985BSW-124-04-S-D Datasheet

Current PartRFQ

1-534267-1

TE Connectivity AMP ConnectorsIn Stock: 11991-534267-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BSW-124-04-S-D is determined by strict alignment of the following critical parameters:

• Position Count & Pitch: 48 positions at 0.100" (2.54mm) mating pitch and 0.100" (2.54mm) row spacing
• Connector Configuration: Receptacle with female socket contacts, board-to-board style
• Mounting & Termination: Through-hole solder termination with bottom or top entry capability
• Contact Material & Finish: Phosphor bronze contacts with gold mating surface at 30.0µin (0.76µm) thickness
• Environmental Rating: Operating temperature range and flammability classification

The substitute part 1-534267-1 (TE Connectivity AMP Connectors AMPMODU Mod IV series) meets these core substitution criteria. Both parts share identical position count, pitch spacing, contact type, and mating contact finish specification. Mechanical variations in insulation height and contact post length are within acceptable tolerances for standard board-to-board interconnect applications.

Parameter Comparison

Engineering Selection Recommendations

BSW-124-04-S-D (Primary Selection): This part is the recommended choice for new designs and applications requiring ROHS3 compliance and REACH unaffected status. Active production status ensures long-term availability and supply chain stability.

1-534267-1 (Substitute Selection): This TE Connectivity part is functionally equivalent for applications where RoHS non-compliance and REACH affected status are acceptable. The mechanical differences in insulation height (0.265" vs. 0.350") and contact post length (0.125" vs. 0.165") are within standard tolerances for board-to-board interconnect designs. The contact finish post composition differs (Tin-Lead vs. Tin), which may impact soldering characteristics depending on assembly process specifications. Both parts maintain identical mating pitch, position count, and gold contact finish thickness.

Selection between these parts should be based on regulatory compliance requirements, supply availability, and specific PCB design constraints related to connector height and post engagement depth.

Frequently Asked Questions (FAQ)

Q: Can 1-534267-1 be used as a direct replacement for BSW-124-04-S-D?

A: Yes, for applications where the mechanical and compliance differences are acceptable. Both connectors share identical mating pitch (0.100"), position count (48), contact type (female socket), and gold mating contact finish (30.0µin). The primary differences are insulation height, contact post length, and regulatory compliance status. PCB layout and assembly process compatibility must be verified before substitution.

Q: What are the key mechanical differences between these connectors?

A: The BSW-124-04-S-D has an insulation height of 0.350" (8.89mm) and contact post length of 0.165" (4.19mm), while the 1-534267-1 has an insulation height of 0.265" (6.73mm) and contact post length of 0.125" (3.18mm). These differences may affect PCB stackup design and mating depth. Verify compatibility with your specific board thickness and connector housing design.

Q: Are there compliance differences I should consider?

A: Yes. The BSW-124-04-S-D is ROHS3 compliant and REACH unaffected, while the 1-534267-1 is RoHS non-compliant and REACH affected. If your application or market requires RoHS3 compliance or REACH compliance, the BSW-124-04-S-D is the appropriate selection.

Q: Do both connectors use the same contact finish on the post?

A: No. The BSW-124-04-S-D uses tin-plated posts, while the 1-534267-1 uses tin-lead plated posts with 150.0µin (3.81µm) thickness. This difference may affect soldering behavior and thermal cycling performance. Consult your assembly process specifications to determine compatibility.

Q: What is the packaging difference?

A: The BSW-124-04-S-D is supplied in bulk packaging, while the 1-534267-1 is supplied in tube packaging. This affects handling, storage, and component placement automation compatibility. Verify packaging compatibility with your procurement and assembly workflow.

Q: Are both connectors rated for the same operating temperature range?

A: The BSW-124-04-S-D is rated for -55°C to 125°C. The operating temperature range for the 1-534267-1 is not specified in the provided data. Confirm temperature rating compatibility with TE Connectivity documentation before substitution in temperature-critical applications.