TSW-111-07-L-S Equivalent & Substitute Parts

Part Overview

The TSW-111-07-L-S is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This 11-position, single-row header operates at 0.100" (2.54mm) pitch and is classified as an active product. The connector features unshrouded design with solder termination and push-pull fastening, suitable for board-to-board or cable interconnection in industrial and commercial applications.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or design requirements necessitate alternative form factors or electrical ratings.

Substiute Parts

TSW-111-07-L-S

Samtec Inc.In Stock: 916TSW-111-07-L-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-111-07-L-S is determined by the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm) — mechanical and electrical compatibility requirement
• Connector Type: Header with male pin contact
• Mounting Type: Through Hole
• Termination: Solder
• Contact Finish - Mating: Gold plating
• Insulation Material: Thermoplastic or equivalent
• Operating Temperature Range: Must support -55°C ~ 125°C or equivalent
• Material Flammability Rating: UL94 V-0 or equivalent
• RoHS Compliance: ROHS3 or equivalent

The substitute part 4-103185-0 (TE Connectivity AMP Connectors) shares the same pitch, connector type, mounting method, and termination approach. However, this part is classified as obsolete and exhibits differences in position count (40 vs. 11), insulation height, contact finish thickness, and operating temperature range. These differences must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The TSW-111-07-L-S is an active product with current availability and ROHS3 compliance certification. The substitute part 4-103185-0 is classified as obsolete and carries no RoHS compliance designation.

Key considerations for substitution:

• The substitute part features 40 positions versus 11 positions in the main part. This difference requires circuit board redesign and connector footprint modification.
• Operating temperature range differs: the main part supports -55°C ~ 125°C, while the substitute supports -65°C ~ 105°C. Applications requiring operation above 105°C cannot use the substitute.
• Contact finish thickness on the mating surface differs (10.0µin vs. 15.0µin), affecting contact durability and wear characteristics.
• The substitute part uses tin-lead post finish, which may conflict with RoHS requirements in new designs.
• Insulation height variation (0.100" vs. 0.090") may affect mechanical fit in existing connector housings.

For new designs, the active status and ROHS3 compliance of the TSW-111-07-L-S make it the preferred selection. Substitution with 4-103185-0 is limited to legacy applications where obsolete component use is acceptable and position count requirements align with the 40-position configuration.

Frequently Asked Questions (FAQ)

Q: Can the 4-103185-0 be used as a direct replacement for the TSW-111-07-L-S?

A: No. The substitute part has 40 positions compared to 11 positions in the main part. Direct replacement requires circuit board redesign and new connector footprint layout. Additionally, the substitute is obsolete and lacks RoHS3 compliance.

Q: What is the significance of the pitch specification in connector substitution?

A: Pitch (0.100" or 2.54mm) defines the center-to-center spacing between adjacent contacts. Both parts share identical pitch, which is a fundamental requirement for mechanical and electrical compatibility. Pitch mismatch prevents proper mating and causes contact misalignment.

Q: How do operating temperature ranges affect substitution decisions?

A: The main part operates from -55°C to 125°C, while the substitute operates from -65°C to 105°C. Applications requiring sustained operation above 105°C cannot use the substitute. The main part's extended upper temperature limit makes it suitable for higher-temperature environments.

Q: What is the impact of contact finish differences?

A: Both parts use gold mating surface finish, but thickness differs (10.0µin vs. 15.0µin). Thicker gold plating generally provides longer contact life and better corrosion resistance. The substitute's thicker plating may offer improved durability in high-cycle mating applications.

Q: Why is RoHS compliance status important for this connector?

A: RoHS3 compliance indicates the part meets European Union restrictions on hazardous substances. The main part is ROHS3 compliant; the substitute is not applicable. New designs targeting EU markets or requiring RoHS compliance must use the main part or verified RoHS-compliant alternatives.

Q: Can individual positions be removed from the 40-position substitute to match the 11-position requirement?

A: The 4-103185-0 features breakaway design, allowing individual positions to be separated. However, this modification requires mechanical processing and may compromise connector integrity. Circuit board redesign to accommodate the full 40-position footprint is the standard engineering approach.

Q: What does "Moisture Sensitivity Level 1 (Unlimited)" mean?

A: MSL 1 indicates the component has unlimited shelf life without moisture absorption concerns. Both parts share this rating, eliminating moisture sensitivity as a substitution constraint.