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

Part Overview

The TSW-122-14-F-D is a classic PCB header strip manufactured by Samtec Inc., designed for through-hole board-to-board or cable connections. This unshrouded, two-row connector features 44 positions at 0.100" (2.54mm) pitch with gold-plated mating contacts and tin-plated posts. The part maintains Active product status with 947 units currently in stock.

Substitute parts become necessary when the original TSW-122-14-F-D reaches end-of-life, experiences supply constraints, or when design requirements necessitate alternative contact configurations or material specifications. The substitute identified in this reference—the TE Connectivity 4-103322-0—shares core electrical and mechanical compatibility parameters but differs in position count and material composition.

Substiute Parts

TSW-122-14-F-D

Samtec Inc.In Stock: 980TSW-122-14-F-D Datasheet

Current PartRFQ

4-103322-0

TE Connectivity AMP ConnectorsIn Stock: 9194-103322-0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the TSW-122-14-F-D is determined by the following critical parameters:

Primary Compatibility Criteria:

• Pitch - Mating: 0.100" (2.54mm)
• Number of Rows: 2
• Row Spacing - Mating: 0.100" (2.54mm)
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole
• Termination: Solder
• Fastening Type: Push-Pull
• Contact Shape: Square

Secondary Considerations:

• Operating Temperature Range
• Material Flammability Rating
• RoHS Compliance Status
• Contact Finish Specifications

The substitute part 4-103322-0 (TE Connectivity) maintains compatibility across all primary criteria. However, it differs in position count (80 vs. 44), contact material composition, contact finish specifications, and product status (Obsolete vs. Active). These differences require engineering evaluation based on specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: TSW-122-14-F-D (Samtec)

The TSW-122-14-F-D remains the preferred component selection based on the following factors:

• Active Product Status: Samtec continues manufacturing this part, ensuring long-term availability and supply chain stability.
• RoHS3 Compliance: Meets current regulatory requirements for hazardous substance restrictions.
• Superior Operating Temperature Range: -55°C to 125°C accommodates broader thermal environments compared to the substitute.
• Gold Mating Contacts: Provides enhanced corrosion resistance and contact reliability over tin-lead finishes.
• Specified Material Composition: PBT insulation with phosphor bronze contacts offers consistent electrical and mechanical performance.

Conditional Substitute: 4-103322-0 (TE Connectivity)

The 4-103322-0 may be considered only when the following conditions are met:

• Supply Unavailability: The TSW-122-14-F-D is unavailable from all authorized distributors.
• Application Temperature Limits: The design operates within the -65°C to 105°C range (noting the 20°C reduction in maximum temperature).
• Position Count Accommodation: The application can utilize the 80-position configuration, or excess positions can be left unloaded.
• Legacy System Compatibility: The system was originally designed with tin-lead contact finishes and can tolerate the material composition differences.
• Regulatory Acceptance: The application does not require RoHS3 compliance or the substitute's non-applicable RoHS status is acceptable.

Critical Differences Requiring Verification:

• Contact Post Length: The 4-103322-0 has a 0.39mm longer post. PCB hole depth and solder joint geometry must accommodate this difference.
• Insulation Height: The 0.25mm reduction in insulation height may affect mating connector clearance and stacking configurations.
• Contact Finish: Tin-lead finish on the substitute may introduce compatibility concerns with gold-plated receptacles or specific soldering processes.
• Product Obsolescence: The 4-103322-0 is discontinued. Sourcing may be limited to remaining inventory, with no future availability guaranteed.

Frequently Asked Questions (FAQ)

Q1: Can the 4-103322-0 directly replace the TSW-122-14-F-D in an existing design?

A: Direct replacement is not recommended without design verification. While both connectors share the same 0.100" (2.54mm) pitch and two-row configuration, critical differences exist in contact post length (0.39mm longer on the substitute), insulation height (0.25mm lower), and contact finish composition. PCB layout, mating connector specifications, and thermal requirements must be re-evaluated before substitution.

Q2: What is the significance of the position count difference (44 vs. 80)?

A: The TSW-122-14-F-D provides 44 positions (22 per row), while the 4-103322-0 provides 80 positions (40 per row). If the application requires only 44 positions, the substitute can be used with 36 positions left unloaded. However, this increases PCB footprint and component cost. Verify that the mating connector or cable assembly can accommodate the larger connector body.

Q3: Why is the operating temperature range different?

A: The TSW-122-14-F-D operates from -55°C to 125°C, while the 4-103322-0 operates from -65°C to 105°C. The substitute has a lower maximum temperature limit (20°C reduction). If the application requires operation above 105°C, the substitute is not suitable. The lower minimum temperature (-65°C vs. -55°C) on the substitute is not a limiting factor for most applications.

Q4: What does "Obsolete" product status mean for the 4-103322-0?

A: Obsolete status indicates that TE Connectivity has discontinued manufacturing the 4-103322-0. Existing inventory may be available from distributors, but no future production is planned. Long-term supply cannot be guaranteed. This part should only be considered as a temporary solution when the primary part is unavailable.

Q5: Are the contact finishes interchangeable?

A: No. The TSW-122-14-F-D uses gold-plated mating contacts (3.00µin thickness) with tin-plated posts. The 4-103322-0 uses tin-lead finish on both mating contacts and posts (100.0µin thickness). Gold provides superior corrosion resistance and is preferred for high-reliability applications. Tin-lead finishes are subject to oxidation and may require different soldering parameters. Verify compatibility with the mating connector and soldering process before substitution.

Q6: What is the impact of the different insulation materials (PBT vs. Thermoplastic)?

A: The TSW-122-14-F-D uses Polybutylene Terephthalate (PBT), a high-performance engineering plastic with superior thermal and chemical resistance. The 4-103322-0 uses generic thermoplastic material with potentially lower performance characteristics. Both materials meet UL94 V-0 flammability requirements, but PBT offers better long-term dimensional stability and environmental resistance. For critical applications, material composition should be verified with the manufacturer.

Q7: Can I use the 4-103322-0 in a RoHS3-compliant design?

A: The 4-103322-0 has "Not applicable" RoHS status, indicating it was manufactured before RoHS compliance became mandatory or the manufacturer has not certified compliance. If your design or end-market requires RoHS3 certification, the TSW-122-14-F-D (ROHS3 Compliant) is the only suitable option. The substitute cannot be used in regulated applications requiring RoHS compliance documentation.

Q8: What should I verify on the PCB before using the 4-103322-0 as a substitute?

A: Verify the following PCB parameters: (1) Hole depth accommodates the 0.39mm longer post on the substitute; (2) Solder pad geometry is compatible with the different contact finish thickness (100.0µin vs. 3.00µin); (3) Clearance around the connector body accounts for the 0.25mm reduction in insulation height; (4) Mating connector or cable assembly can physically interface with the 80-position body; (5) Thermal design does not exceed the 105°C maximum operating temperature of the substitute.

Q9: Is the 3A current rating on the 4-103322-0 a limiting factor?

A: The TSW-122-14-F-D does not specify a current rating in the provided data. The 4-103322-0 specifies 3A per contact. If your application requires higher current per contact, the substitute may be inadequate. Verify the actual current requirements of your design and confirm that the TSW-122-14-F-D can support those requirements through Samtec technical documentation.

Q10: What is the Moisture Sensitivity Level (MSL) of these connectors?

A: The TSW-122-14-F-D does not specify MSL in the provided data. The 4-103322-0 specifies MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. If your manufacturing process or storage environment requires MSL compliance, verify the TSW-122-14-F-D specifications with Samtec. MSL 1 is the least restrictive classification and poses no practical limitations for standard assembly and storage.