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

Part Overview

The TSW-112-14-F-S is a rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board or cable applications. This 12-position, single-row header features 0.100" (2.54mm) pitch mating with gold-plated square contacts and solder termination. The part maintains active product status with 830 units in current inventory.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory depletion, or when design requirements permit alternative connector configurations that maintain electrical and mechanical compatibility within specified parameters.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	12
Number of Rows	1
Mounting Type	Through Hole
Termination	Solder
Contact Shape	Square
Insulation Material	Polybutylene Terephthalate (PBT)
Operating Temperature Range	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

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

Pitch - Mating: Must be 0.100" (2.54mm) to ensure mechanical and electrical compatibility with mating connectors
Contact Type: Must be Male Pin to maintain board-to-board or cable connection functionality
Mounting Type: Must be Through Hole for PCB assembly compatibility
Termination: Must be Solder for wave or reflow soldering processes
Contact Shape: Must be Square to ensure proper contact engagement
Number of Rows: Must be 1 for single-row header applications

The substitute part 4-103321-0 (TE Connectivity AMP Connectors) shares these critical parameters. However, this part differs in position count (40 positions versus 12 positions), which permits its use in applications where the connector can be broken away or where the additional positions do not conflict with board layout constraints.

Parameter Comparison

Parameter	TSW-112-14-F-S (Samtec)	4-103321-0 (TE Connectivity)
Connector Type	Header	Header, Breakaway
Contact Type	Male Pin	Male Pin
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	12	40
Number of Rows	1	1
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Contact Shape	Square	Square
Contact Length - Mating	0.320" (8.13mm)	0.318" (8.08mm)
Contact Length - Post	0.110" (2.79mm)	0.125" (3.18mm)
Overall Contact Length	0.530" (13.46mm)	0.533" (14.65mm)
Insulation Height	0.100" (2.54mm)	0.090" (2.29mm)
Contact Finish - Mating	Gold	Tin-Lead
Contact Material	Phosphor Bronze	Copper Alloy
Insulation Material	Polybutylene Terephthalate (PBT)	Thermoplastic
Operating Temperature Range	-55°C ~ 125°C	-65°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Product Status	Active	Obsolete
RoHS Status	ROHS3 Compliant	Not applicable
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The TSW-112-14-F-S remains the preferred selection for new designs due to its active product status, ROHS3 compliance, and extended operating temperature range (-55°C ~ 125°C).

The 4-103321-0 substitute is classified as obsolete and carries no RoHS compliance designation. Selection of this part is limited to legacy system maintenance or applications where RoHS compliance is not required. The lower maximum operating temperature (105°C versus 125°C) and reduced insulation height (0.090" versus 0.100") must be evaluated against specific application thermal and mechanical constraints.

Both parts meet UL94 V-0 flammability requirements and maintain unlimited moisture sensitivity levels. The contact finish difference (gold versus tin-lead) and contact material variation (phosphor bronze versus copper alloy) may affect long-term reliability in corrosive environments or high-cycle mating applications.

Frequently Asked Questions (FAQ)

Q: Can the 4-103321-0 directly replace the TSW-112-14-F-S in existing designs?

A: Direct replacement is not recommended without design review. The 4-103321-0 has 40 positions versus 12 positions in the TSW-112-14-F-S. While the connector pitch and contact geometry are compatible, the additional positions require either board layout modification or connector breakaway configuration. Additionally, the obsolete status and lack of RoHS compliance present long-term supply and regulatory risks.

Q: What are the critical compatibility parameters for substitution?

A: The 0.100" (2.54mm) pitch, male pin contact type, square contact shape, through-hole mounting, and solder termination are non-negotiable for mechanical and electrical compatibility. Any deviation in these parameters will result in incompatibility with existing mating connectors or PCB footprints.

Q: How do the contact finishes affect performance?

A: The TSW-112-14-F-S uses gold plating on mating contacts, which provides superior corrosion resistance and lower contact resistance over extended mating cycles. The 4-103321-0 uses tin-lead finish, which is acceptable for standard applications but may show increased contact resistance degradation in high-cycle or corrosive environments.

Q: Are there temperature limitations when using the 4-103321-0?

A: Yes. The 4-103321-0 operates to a maximum of 105°C, compared to 125°C for the TSW-112-14-F-S. Applications requiring sustained operation above 105°C must use the primary part or identify alternative substitutes with higher temperature ratings.

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

A: The TSW-112-14-F-S is ROHS3 compliant, meeting current European Union and similar regulatory requirements for restricted hazardous substances. The 4-103321-0 carries no RoHS designation due to its obsolete status. New designs intended for markets with RoHS requirements must use the TSW-112-14-F-S or equivalent compliant alternatives.

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