TSW-109-07-S-D Equivalent & Substitute Parts

Part Overview

The TSW-109-07-S-D is a rectangular connector header manufactured by Samtec Inc., designed for through-hole board-to-board or cable applications. This 18-position, 2-row connector operates across a wide temperature range of -55°C to 125°C and features gold-plated mating contacts with tin-plated posts. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts become necessary when the TSW-109-07-S-D reaches end-of-life, inventory constraints occur, or design requirements necessitate alternative connector configurations while maintaining electrical and mechanical compatibility.

Substiute Parts

TSW-109-07-S-D

Samtec Inc.In Stock: 853TSW-109-07-S-D Datasheet

Current PartRFQ

4-103240-0

TE Connectivity AMP ConnectorsIn Stock: 12794-103240-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSW-109-07-S-D is determined by the following critical parameters:

Electrical Compatibility Parameters:

• Pitch - Mating: 0.100" (2.54mm)
• Contact Type: Male Pin
• Row Spacing - Mating: 0.100" (2.54mm)
• Contact Finish - Mating: Gold
• Operating Temperature Range: -55°C ~ 125°C minimum

Mechanical Compatibility Parameters:

• Mounting Type: Through Hole
• Termination: Solder
• Connector Type: Header (standard or breakaway variants acceptable)
• Material Flammability Rating: UL94 V-0

Regulatory Compliance Parameters:

• RoHS Status: ROHS3 Compliant preferred
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part 4-103240-0 (TE Connectivity AMP Connectors AMPMODU Mod II series) shares the core electrical and mechanical specifications with the TSW-109-07-S-D, including identical pitch, row spacing, contact type, and mounting methodology. However, critical differences exist in position count, operating temperature range, and compliance status that must be evaluated for specific applications.

Parameter Comparison

Engineering Selection Recommendations

TSW-109-07-S-D (Active, Primary Selection): The TSW-109-07-S-D remains the preferred component for new designs and ongoing production. Active product status ensures continued availability and manufacturer support. Full RoHS3 compliance satisfies modern regulatory requirements. The operating temperature range of -55°C to 125°C accommodates extended industrial and aerospace applications. Phosphor bronze contact material with gold plating provides superior corrosion resistance and contact reliability.

4-103240-0 (Obsolete, Conditional Substitution Only): The 4-103240-0 is classified as Obsolete and carries RoHS non-compliance status, making it unsuitable for new designs or applications requiring regulatory compliance. The maximum operating temperature of 105°C is restricted compared to the TSW-109-07-S-D's 125°C upper limit, eliminating this substitute for high-temperature applications. The 80-position configuration differs significantly from the 18-position main part, requiring complete PCB redesign and connector footprint modification. Tin-lead post finish introduces lead content incompatible with lead-free manufacturing processes. This substitute is applicable only to legacy system maintenance where original connector specifications are mandatory and regulatory compliance is not required.

Frequently Asked Questions (FAQ)

Q: Can the 4-103240-0 directly replace the TSW-109-07-S-D in existing designs?

A: No. The 4-103240-0 has 80 positions versus 18 positions in the TSW-109-07-S-D, requiring complete PCB redesign. Additionally, the 4-103240-0 is Obsolete and RoHS non-compliant, making it unsuitable for new or updated applications.

Q: What are the critical compatibility parameters for substituting rectangular connectors at 2.54mm pitch?

A: Pitch (0.100"/2.54mm), row spacing (0.100"/2.54mm), contact type (Male Pin), mounting type (Through Hole), and termination method (Solder) must remain identical. Operating temperature range, contact finish, and compliance certifications must meet or exceed application requirements.

Q: Is the 4-103240-0 suitable for applications requiring RoHS compliance?

A: No. The 4-103240-0 is RoHS non-compliant and carries tin-lead post finish, which is incompatible with lead-free manufacturing and RoHS-regulated markets.

Q: What is the maximum operating temperature difference between these parts?

A: The TSW-109-07-S-D operates to 125°C, while the 4-103240-0 is limited to 105°C. This 20°C difference eliminates the substitute for high-temperature industrial and aerospace applications.

Q: Are the contact materials interchangeable between these connectors?

A: No. The TSW-109-07-S-D uses phosphor bronze contacts, while the 4-103240-0 uses copper alloy. Phosphor bronze provides superior spring characteristics and corrosion resistance for critical applications.

Q: Can the breakaway feature of the 4-103240-0 be used as an advantage over the standard TSW-109-07-S-D header?

A: The breakaway feature is a design characteristic of the 4-103240-0 series but does not compensate for its Obsolete status, RoHS non-compliance, reduced operating temperature range, and position count mismatch with the TSW-109-07-S-D.