TSW-122-14-S-D Equivalent & Substitute Parts

Part Overview

The TSW-122-14-S-D is a rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board or cable applications. This 44-position, 2-row connector operates across a wide temperature range of -55°C to 125°C and features gold-plated mating contacts with tin-plated posts. The part maintains active product status with robust RoHS3 compliance and UL94 V-0 flammability rating.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or design requirements necessitate alternative connector configurations with compatible electrical and mechanical parameters.

Substiute Parts

TSW-122-14-S-D

Samtec Inc.In Stock: 1099TSW-122-14-S-D Datasheet

Current PartRFQ

4-102977-0

TE Connectivity AMP ConnectorsIn Stock: 8234-102977-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSW-122-14-S-D is determined by the following critical parameters:

Primary Substitution Criteria:

• Pitch - Mating: 0.100" (2.54mm) — must match exactly
• Contact Type: Male Pin — must match exactly
• Mounting Type: Through Hole — must match exactly
• Termination: Solder — must match exactly
• Number of Rows: 2 — must match exactly
• Row Spacing - Mating: 0.100" (2.54mm) — must match exactly

Secondary Compatibility Parameters:

• Contact Finish - Mating: Gold plating acceptable
• Operating Temperature Range: Must encompass or equal the original range
• Material Flammability Rating: UL94 V-0 required
• RoHS Compliance: ROHS3 or equivalent required

The substitute part 4-102977-0 (TE Connectivity AMP Connectors AMPMODU Mod II series) shares the same mating pitch, contact type, row configuration, and mounting methodology. However, this part differs in position count (80 vs. 44), insulation height, contact length specifications, and operating temperature range, requiring careful evaluation for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The TSW-122-14-S-D maintains active product status with full RoHS3 compliance and UL94 V-0 certification, making it the preferred choice for new designs and applications requiring long-term supply assurance.

The 4-102977-0 substitute carries obsolete product status and lacks RoHS compliance documentation. This part should be considered only when the TSW-122-14-S-D is unavailable and the application can accommodate the following differences:

• Higher position count (80 vs. 44) requires design accommodation or selective position loading
• Reduced maximum operating temperature (105°C vs. 125°C) may limit high-temperature applications
• Longer contact post (0.125" vs. 0.110") affects PCB stack-up and mating depth
• Lower insulation height (0.090" vs. 0.100") impacts mechanical clearance
• Tin-Lead post finish instead of Tin may introduce compatibility considerations in lead-free assembly environments

Frequently Asked Questions (FAQ)

Q: Can the 4-102977-0 be used as a direct replacement for the TSW-122-14-S-D?

A: No. While both connectors share identical mating pitch (0.100"), row configuration (2 rows), and through-hole solder termination, the 4-102977-0 has 80 positions versus 44 positions in the TSW-122-14-S-D. The substitute also exhibits differences in contact post length, insulation height, and operating temperature range. Substitution requires design verification to confirm these dimensional and thermal differences are acceptable for the specific application.

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

A: Mating pitch (0.100"), contact type (Male Pin), number of rows (2), row spacing (0.100"), mounting type (Through Hole), and termination method (Solder) must remain identical. Deviations in these parameters prevent mechanical and electrical compatibility.

Q: Does the 4-102977-0 meet current RoHS requirements?

A: The 4-102977-0 carries "Not applicable" RoHS status, indicating it predates or falls outside current RoHS compliance frameworks. The TSW-122-14-S-D is ROHS3 compliant and is recommended for applications requiring documented RoHS compliance.

Q: How do the operating temperature ranges compare?

A: The TSW-122-14-S-D operates from -55°C to 125°C, while the 4-102977-0 operates from -65°C to 105°C. Applications requiring operation above 105°C must use the TSW-122-14-S-D. The substitute offers lower minimum temperature capability but reduced maximum temperature performance.

Q: Are there differences in contact post length that affect PCB design?

A: Yes. The TSW-122-14-S-D has a 0.110" (2.79mm) contact post length, while the 4-102977-0 has a 0.125" (3.18mm) post length. This 0.015" difference affects PCB stack-up, solder joint formation, and mating depth. PCB layout must be verified before substitution.

Q: What is the significance of the Tin vs. Tin-Lead post finish difference?

A: The TSW-122-14-S-D uses Tin post finish, while the 4-102977-0 uses Tin-Lead finish. In lead-free assembly environments, the Tin-Lead finish on the substitute may introduce compatibility considerations. The TSW-122-14-S-D's Tin finish aligns with modern lead-free manufacturing standards.