TSW-137-07-T-S Equivalent & Substitute Parts

Part Overview

The TSW-137-07-T-S is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications requiring 37-position, 0.100" (2.54mm) pitch connectivity. This connector is classified as an unshrouded, single-row board-to-board or cable header with male pin contacts and solder termination. The part maintains Active product status with full inventory availability.

Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part's specifications, enabling direct functional replacement in applications where the original part becomes unavailable or when design requirements permit alternative configurations.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	37
Number of Rows	1
Mounting Type	Through Hole
Termination	Solder
Contact Material	Phosphor Bronze
Insulation Material	Polybutylene Terephthalate (PBT)
Operating Temperature Range	-55°C ~ 105°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-137-07-T-S is determined by alignment of the following critical parameters:

Pitch - Mating: 0.100" (2.54mm) — must match exactly for PCB footprint compatibility
Connector Type: Header with male pin contacts for board-to-board or cable applications
Mounting Type: Through Hole for solder termination
Number of Rows: Single row configuration
Contact Material and Finish: Tin-plated contacts for electrical performance
Operating Temperature Range: Minimum -55°C to 105°C capability
Flammability and Compliance: UL94 V-0 rating and ROHS3 compliance

The substitute part 4-103327-9 (TE Connectivity AMP Connectors) shares these core parameters. However, the substitute differs in position count (40 vs. 37), insulation height (0.090" vs. 0.100"), and contact post length (0.120" vs. 0.100"), which may affect mechanical fit and board layout compatibility.

Parameter Comparison

Parameter	TSW-137-07-T-S (Samtec)	4-103327-9 (TE Connectivity)
Manufacturer	Samtec Inc.	TE Connectivity AMP Connectors
Connector Type	Header	Header, Breakaway
Contact Type	Male Pin	Male Pin
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	37	40
Number of Rows	1	1
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Contact Length - Mating	0.230" (5.84mm)	0.230" (5.84mm)
Contact Length - Post	0.100" (2.54mm)	0.120" (3.05mm)
Overall Contact Length	0.430" (10.92mm)	0.440" (11.18mm)
Insulation Height	0.100" (2.54mm)	0.090" (2.29mm)
Contact Shape	Square	Square
Contact Finish - Mating	Tin	Tin
Contact Material	Phosphor Bronze	Copper Alloy
Insulation Material	Polybutylene Terephthalate (PBT)	Thermoplastic
Operating Temperature	-55°C ~ 105°C	-65°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Black	Black
Current Rating	Not specified	3A
Product Status	Active	Obsolete
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The TSW-137-07-T-S maintains Active product status with established supply chain availability. Selection of this part is recommended for new designs and ongoing production where 37-position configuration is required.

The substitute part 4-103327-9 carries Obsolete product status, indicating discontinued manufacturing and limited future availability. This part should be considered only when design constraints permit the 40-position configuration and when the mechanical dimensional differences (insulation height and contact post length) are compatible with the application's PCB layout and mating connector specifications.

Both parts meet ROHS3 compliance and UL94 V-0 flammability requirements. The operating temperature range of 4-103327-9 extends to -65°C, providing broader low-temperature capability compared to the TSW-137-07-T-S at -55°C minimum.

Frequently Asked Questions (FAQ)

Q: Can the 4-103327-9 directly replace the TSW-137-07-T-S in existing designs?

A: Direct replacement is not recommended without design review. The 40-position count versus 37-position, combined with dimensional differences in insulation height (0.090" vs. 0.100") and contact post length (0.120" vs. 0.100"), may cause mechanical incompatibility with existing PCB footprints and mating connectors.

Q: What is the primary difference in contact material between these parts?

A: The TSW-137-07-T-S uses Phosphor Bronze contacts, while the 4-103327-9 uses Copper Alloy contacts. Both are tin-plated and suitable for standard through-hole solder applications.

Q: Why is the 4-103327-9 listed as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. This part should not be selected for new designs requiring long-term supply assurance.

Q: Are both parts suitable for the same operating temperature range?

A: The TSW-137-07-T-S operates from -55°C to 105°C, while the 4-103327-9 operates from -65°C to 105°C. The substitute part provides extended low-temperature capability but is otherwise compatible within the main part's temperature range.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant, UL94 V-0 rated for flammability, and carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.

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