TSW-112-07-L-D Equivalent & Substitute Parts

Part Overview

The TSW-112-07-L-D is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This 24-position, 2-row connector operates across a temperature range of -55°C to 125°C and features gold-plated mating contacts with tin-plated posts. The part is currently in active production status and maintains full RoHS3 compliance. Substitute parts become necessary when addressing inventory constraints, supply chain disruptions, or when design requirements permit alternative connector geometries within the same electrical and mechanical specifications.

Substiute Parts

TSW-112-07-L-D

Samtec Inc.In Stock: 752TSW-112-07-L-D Datasheet

Current PartRFQ

4-103186-0-12

TE Connectivity AMP ConnectorsIn Stock: 11924-103186-0-12 Datasheet

MFR RecommendedRFQ

6-146256-2

TE Connectivity AMP ConnectorsIn Stock: 46076-146256-2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSW-112-07-L-D is determined by strict alignment of the following parameters:

• Connector type classification (Header with optional Breakaway feature)
• Contact configuration: 24 positions, 2 rows, male pins
• Pitch specifications: 0.100" (2.54mm) mating pitch and row spacing
• Mounting method: Through-hole solder termination
• Fastening mechanism: Push-Pull engagement
• Contact geometry: Square cross-section
• Flammability compliance: UL94 V-0 rating
• Moisture sensitivity: MSL 1 classification

The substitute parts 4-103186-0-12 and 6-146256-2 satisfy these core electrical and mechanical requirements. Variations in contact finish thickness, insulation material composition, and operating temperature ranges do not preclude substitution when the primary functional parameters align.

Parameter Comparison

Engineering Selection Recommendations

6-146256-2 (TE Connectivity) is the primary substitute for new designs and production applications. This part maintains active product status, achieves RoHS compliance, and operates within the same temperature and moisture sensitivity classifications as the TSW-112-07-L-D. The AMPMODU Mod II series provides mechanical and electrical compatibility with identical pitch, position count, and contact geometry.

4-103186-0-12 (TE Connectivity) is classified as obsolete and carries RoHS non-compliance status. This part is suitable only for legacy system maintenance or applications where RoHS compliance is not a requirement. The tin-lead post finish and thermoplastic insulation material differ from the primary part specification.

Selection between the TSW-112-07-L-D and 6-146256-2 depends on supply availability and design constraints. The TSW-112-07-L-D supports a higher maximum operating temperature (125°C versus 105°C), while 6-146256-2 offers broader inventory availability and active manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can 6-146256-2 be used as a direct replacement for TSW-112-07-L-D in existing designs?

A: Yes. Both parts share identical mating pitch (0.100"), position count (24), row configuration (2 rows), contact type (male pin), mounting method (through-hole solder), and fastening mechanism (push-pull). The breakaway feature present in 6-146256-2 does not affect compatibility with standard mating connectors.

Q: What are the differences in operating temperature ranges?

A: TSW-112-07-L-D operates from -55°C to 125°C, while 6-146256-2 operates from -65°C to 105°C. Applications requiring sustained operation above 105°C must use the TSW-112-07-L-D. Applications operating below 105°C can use either part.

Q: Why is 4-103186-0-12 marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production and support. This part remains electrically and mechanically compatible but should not be selected for new designs or long-term production commitments.

Q: Does RoHS compliance affect electrical performance?

A: RoHS compliance addresses material composition and environmental impact, not electrical performance. Both RoHS-compliant (6-146256-2) and non-compliant (4-103186-0-12) parts deliver equivalent electrical characteristics. RoHS compliance is a regulatory and supply chain requirement, not a performance specification.

Q: Are there differences in contact finish that affect reliability?

A: All three parts feature gold-plated mating contacts. Post finishes vary: TSW-112-07-L-D uses tin, 6-146256-2 uses tin, and 4-103186-0-12 uses tin-lead. These finishes support equivalent solder joint reliability in standard PCB assembly processes.

Q: Can these connectors be used interchangeably with different mating connectors?

A: These are header connectors designed to mate with standard 0.100" (2.54mm) pitch receptacle connectors. Interchangeability depends on the receptacle connector specifications, not on differences between these three header variants.