TSW-112-07-S-S Equivalent & Substitute Parts

Part Overview

The TSW-112-07-S-S is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This 12-position, single-row header operates at 0.100" (2.54mm) pitch and features gold-plated mating contacts with tin-plated posts. The part is currently active in production status. Identifying equivalent and substitute parts becomes necessary when addressing inventory constraints, lead time requirements, or design flexibility across compatible connector families.

Substiute Parts

TSW-112-07-S-S

Samtec Inc.In Stock: 782TSW-112-07-S-S Datasheet

Current PartRFQ

4-103185-0

TE Connectivity AMP ConnectorsIn Stock: 15934-103185-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSW-112-07-S-S is determined by the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm) — must match exactly for mechanical and electrical compatibility
• Contact Type: Male Pin — determines mating interface requirements
• Mounting Type: Through Hole — establishes PCB assembly compatibility
• Termination: Solder — defines connection method to PCB
• Connector Type: Header — functional classification for board-to-board or cable applications
• Number of Rows: 1 — establishes physical layout constraints

The identified substitute part 4-103185-0 (TE Connectivity AMP Connectors) shares the same pitch, contact type, mounting method, and termination approach. However, this substitute differs in position count (40 positions versus 12 positions) and product status (Obsolete versus Active). Substitution is possible only when the application permits use of a higher-position-count connector or when individual positions can be left unloaded.

Parameter Comparison

Engineering Selection Recommendations

The TSW-112-07-S-S remains the preferred selection for new designs due to its active product status and ROHS3 compliance. The part is currently in stock with 706 units available.

The substitute part 4-103185-0 carries an Obsolete product status, indicating discontinued manufacturing and limited future availability. Additionally, this substitute exhibits the following deviations:

• Operating temperature upper limit reduced from 125°C to 105°C
• Contact finish post material changed from Tin to Tin-Lead
• Insulation material composition differs (Thermoplastic versus PBT)
• RoHS compliance status is not applicable, indicating potential regulatory concerns for applications requiring ROHS3 certification

Use of 4-103185-0 is restricted to legacy system maintenance or applications where the 40-position configuration can be accommodated with unused positions. New designs should specify the TSW-112-07-S-S to ensure long-term supply chain stability and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the 4-103185-0 directly replace the TSW-112-07-S-S in existing designs?

A: Direct replacement is not recommended. While both connectors share identical pitch (0.100"), contact type (Male Pin), and mounting method (Through Hole), the substitute has a 40-position configuration versus 12 positions. PCB layout modifications would be required. Additionally, the substitute is obsolete and lacks ROHS3 compliance.

Q: What are the critical parameters that must match for connector substitution?

A: Pitch-mating (0.100"), contact type (Male Pin), number of rows (1), mounting type (Through Hole), and termination method (Solder) must remain identical. Deviations in these parameters prevent mechanical and electrical compatibility.

Q: Does the operating temperature difference affect substitution feasibility?

A: The TSW-112-07-S-S operates to 125°C while the 4-103185-0 operates to 105°C. Applications requiring operation above 105°C cannot use the substitute. This represents a functional limitation for high-temperature environments.

Q: Is the Tin-Lead finish on the substitute part acceptable for new designs?

A: The substitute uses Tin-Lead contact finish on posts, whereas the main part uses Tin. Tin-Lead finishes are subject to regulatory restrictions in many jurisdictions. The main part's Tin finish is preferred for compliance with modern environmental standards.

Q: What is the significance of the Obsolete product status for the substitute?

A: Obsolete status indicates the part is no longer manufactured. Existing inventory may be available, but future procurement is not guaranteed. For applications requiring long-term supply chain stability, the active TSW-112-07-S-S is the appropriate choice.