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

Part Overview

The TSW-122-14-L-S is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This 22-position, single-row header operates at 0.100" (2.54mm) pitch and features gold-plated mating contacts with tin-plated posts. The connector is classified as Active product status and is fully RoHS3 compliant with 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. The identified substitute maintains core electrical and mechanical compatibility while offering different position counts and contact specifications.

Substiute Parts

TSW-122-14-L-S

Samtec Inc.In Stock: 901TSW-122-14-L-S Datasheet

Current PartRFQ

4-103321-8

TE Connectivity AMP ConnectorsIn Stock: 28654-103321-8 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 4-103321-8 (TE Connectivity AMP Connectors) is identified based on the following substitution criteria:

Matching Parameters:

• Pitch - Mating: 0.100" (2.54mm)
• Connector Type: Header with male pins
• Mounting Type: Through Hole
• Termination: Solder
• Fastening Type: Push-Pull
• Number of Rows: 1
• Insulation Material: Thermoplastic (compatible with PBT)
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Differing Parameters:

• Number of Positions: 40 (vs. 22 in main part)
• Contact Finish - Mating: Tin (vs. Gold in main part)
• Operating Temperature: -65°C ~ 105°C (vs. -55°C ~ 125°C in main part)
• Product Status: Obsolete (vs. Active in main part)
• Contact Material: Copper Alloy (vs. Phosphor Bronze in main part)

The substitute maintains core mechanical and electrical compatibility through identical pitch spacing and through-hole solder termination. Position count difference requires design accommodation. Contact finish and material variations affect electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

TSW-122-14-L-S (Primary Selection): The TSW-122-14-L-S maintains Active product status with full manufacturer support. This connector is the preferred choice for new designs and applications requiring the specified 22-position configuration. Gold-plated mating contacts provide superior corrosion resistance and contact reliability. The operating temperature range of -55°C ~ 125°C accommodates extended thermal environments. ROHS3 compliance and UL94 V-0 flammability rating satisfy regulatory requirements for industrial and commercial applications.

4-103321-8 (Substitute Selection): The 4-103321-8 serves as a substitute when TSW-122-14-L-S availability is constrained or when design modifications accommodate the 40-position configuration. This part maintains ROHS3 compliance and UL94 V-0 flammability rating. However, Obsolete product status indicates discontinued manufacturer support and limited long-term availability. The reduced operating temperature maximum of 105°C restricts use in high-temperature applications. Tin-plated mating contacts present lower corrosion resistance compared to gold plating. The breakaway feature provides design flexibility for modular connector applications. Selection of this substitute requires design validation for position count accommodation and thermal environment compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 4-103321-8 directly replace the TSW-122-14-L-S without design modification?

A: Direct replacement is not possible due to position count difference (40 vs. 22). The 4-103321-8 requires PCB layout modification to accommodate additional contact positions. Mechanical footprint and connector spacing must be re-evaluated for the substitute part.

Q: What are the implications of the contact finish difference between gold and tin plating?

A: Gold plating (TSW-122-14-L-S) provides superior corrosion resistance and lower contact resistance over extended service life. Tin plating (4-103321-8) offers adequate performance in controlled environments but exhibits higher oxidation rates in humid or corrosive conditions. Contact finish selection impacts long-term reliability and signal integrity.

Q: Does the operating temperature range difference affect application suitability?

A: The TSW-122-14-L-S supports -55°C ~ 125°C operation, while the 4-103321-8 operates within -65°C ~ 105°C. Applications requiring sustained operation above 105°C must use the primary part. The substitute provides lower temperature capability (-65°C vs. -55°C), suitable for cryogenic environments.

Q: Are both parts RoHS3 compliant?

A: Yes, both TSW-122-14-L-S and 4-103321-8 are ROHS3 compliant with UL94 V-0 flammability rating. Both parts satisfy regulatory requirements for hazardous substance restriction and fire safety standards.

Q: What is the significance of the Obsolete product status for the 4-103321-8?

A: Obsolete status indicates TE Connectivity has discontinued manufacturing and support for the 4-103321-8. This part is available only through existing inventory channels. Long-term supply cannot be guaranteed, and design migration to Active products is recommended for production applications.

Q: How do the contact length specifications compare between the two parts?

A: Overall contact length is nearly identical (0.530" vs. 0.533"), ensuring compatible mating depth. Post length differs (0.110" vs. 0.125"), affecting solder joint geometry and PCB trace routing. Mating contact length is equivalent (0.320" vs. 0.318"), maintaining consistent electrical contact engagement.

Q: What is the breakaway feature on the 4-103321-8?

A: The breakaway feature allows individual connector positions to be separated from the main header assembly, enabling modular connector configurations. This feature is absent on the TSW-122-14-L-S, which is a fixed 22-position header.