TSW-112-14-L-S Equivalent & Substitute Parts

Part Overview

The TSW-112-14-L-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 connector is actively produced and widely used in board-to-board and cable interconnect applications requiring reliable solder termination.

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-112-14-L-S

Samtec Inc.In Stock: 843TSW-112-14-L-S Datasheet

Current PartRFQ

4-103321-0

TE Connectivity AMP ConnectorsIn Stock: 10234-103321-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSW-112-14-L-S is determined by the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm) — must match exactly for PCB footprint compatibility
• Connector Type: Header with male pin contacts
• Mounting Type: Through hole solder termination
• Number of Rows: Single row configuration
• Shrouding: Unshrouded design
• Contact Shape: Square profile
• Insulation Material: Thermoplastic or PBT-based compounds
• Operating Temperature Range: Minimum -55°C to 125°C capability
• Material Flammability: UL94 V-0 rating

The substitute part 4-103321-0 (TE Connectivity AMP Connectors AMPMODU Mod II series) shares the core mating pitch, connector type, and through-hole solder termination. However, this part differs in position count (40 positions versus 12 positions), which restricts direct one-to-one substitution. The AMPMODU Mod II series features breakaway capability, allowing individual position extraction to achieve the required 12-position configuration for this application.

Parameter Comparison

Engineering Selection Recommendations

The TSW-112-14-L-S remains the preferred selection for new designs due to its active product status and ROHS3 compliance certification. This part is suitable for applications requiring the full operating temperature range of -55°C to 125°C with gold-plated mating contacts for enhanced corrosion resistance.

The 4-103321-0 substitute carries obsolete product status and lacks RoHS compliance documentation. This part is suitable only for legacy system maintenance or applications where RoHS compliance is not required. The breakaway feature of the AMPMODU Mod II series allows extraction of individual positions to achieve the 12-position requirement, though this introduces additional assembly considerations. The substitute part operates within a narrower temperature range (-65°C to 105°C maximum), which may not satisfy applications requiring the full -55°C to 125°C envelope of the primary part. Contact finish differences (tin-lead versus gold) affect long-term reliability in corrosive environments.

Frequently Asked Questions (FAQ)

Q: Can the 4-103321-0 directly replace the TSW-112-14-L-S without modification?

A: No. The 4-103321-0 is supplied as a 40-position header. Direct substitution requires mechanical extraction of 28 positions using the breakaway feature to achieve the 12-position configuration. This introduces additional assembly steps and potential yield loss.

Q: What are the key compatibility factors between these parts?

A: Both parts share identical 0.100" (2.54mm) mating pitch, single-row through-hole solder termination, and unshrouded square contact geometry. These parameters ensure PCB footprint compatibility when the 4-103321-0 is configured to 12 positions.

Q: How do the contact finishes affect performance?

A: The TSW-112-14-L-S features gold-plated mating contacts, which provide superior corrosion resistance and lower contact resistance over extended service life. The 4-103321-0 uses tin-lead finish, which is acceptable for standard applications but offers reduced protection in high-humidity or corrosive environments.

Q: Are there temperature range limitations with the substitute part?

A: Yes. The TSW-112-14-L-S operates from -55°C to 125°C, while the 4-103321-0 operates from -65°C to 105°C. Applications requiring operation above 105°C cannot use the substitute part.

Q: What is the significance of the RoHS compliance difference?

A: The TSW-112-14-L-S is ROHS3 compliant, meeting current regulatory requirements for lead-free manufacturing. The 4-103321-0 carries "Not applicable" RoHS status, indicating it may contain restricted substances. This affects suitability for regulated markets and OEM procurement policies.

Q: Does the contact material difference impact electrical performance?

A: Both parts use phosphor bronze or copper alloy contact materials with similar electrical conductivity. The primary difference lies in corrosion resistance and long-term contact resistance stability, where the gold-plated contacts of the TSW-112-14-L-S provide superior performance.