TSW-133-08-G-S-RA Equivalent & Substitute Parts

Part Overview

The TSW-133-08-G-S-RA is a rectangular connector header manufactured by Samtec Inc., designed for through-hole, right-angle board-to-board or cable applications. This 33-position connector operates at 0.100" (2.54mm) pitch and features gold-plated phosphor bronze contacts with solder termination. The part maintains Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, particularly when the original part faces inventory constraints or when design specifications permit position count variations within the same pitch and mounting standard.

Substiute Parts

TSW-133-08-G-S-RA

Samtec Inc.In Stock: 1046TSW-133-08-G-S-RA Datasheet

Current PartRFQ

4-103765-0

TE Connectivity AMP ConnectorsIn Stock: 9274-103765-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSW-133-08-G-S-RA is determined by the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm) — must match exactly for mechanical compatibility
• Mounting Type: Through Hole, Right Angle — must match for PCB layout compatibility
• Contact Type: Male Pin — must match for mating interface
• Termination: Solder — must match for assembly process compatibility
• Number of Rows: 1 — must match for form factor consistency

The substitute part 4-103765-0 shares these core parameters. However, the Number of Positions differs (40 vs. 33), which represents a functional variation. This variation is permissible in substitution scenarios where the application circuit design accommodates the increased position count or where breakaway capability allows selective use of available positions.

Parameter Comparison

Engineering Selection Recommendations

The TSW-133-08-G-S-RA is the primary selection for new designs due to its Active product status and ROHS3 compliance. This part is suitable for applications requiring the specified 33-position configuration with extended operating temperature range (-55°C ~ 125°C).

The substitute part 4-103765-0 carries Obsolete product status and is RoHS non-compliant. Selection of this part is limited to legacy system maintenance or retrofit applications where the original specification is mandated. The 40-position configuration and reduced operating temperature range (-65°C ~ 105°C) present functional constraints that must be evaluated against application requirements. The thermoplastic insulation material differs from the PBT specification of the primary part.

For new designs or systems requiring RoHS compliance, the TSW-133-08-G-S-RA remains the appropriate choice.

Frequently Asked Questions (FAQ)

Q: Can the 4-103765-0 (40-position) directly replace the TSW-133-08-G-S-RA (33-position)?

A: Direct replacement is possible only if the application circuit design accommodates the additional 7 positions. The 4-103765-0 features breakaway capability, allowing selective use of available positions. PCB layout must be verified to ensure the increased connector length does not create mechanical conflicts.

Q: What are the key compatibility factors between these parts?

A: Both parts share identical pitch (0.100" / 2.54mm), mounting type (Through Hole, Right Angle), contact type (Male Pin), and termination method (Solder). These parameters ensure mechanical and electrical interface compatibility. Differences in position count, operating temperature range, and material composition must be evaluated against specific application requirements.

Q: Why is the TSW-133-08-G-S-RA preferred over the 4-103765-0?

A: The TSW-133-08-G-S-RA maintains Active product status, ensuring continued availability and manufacturing support. It is ROHS3 compliant, meeting current regulatory requirements. The extended operating temperature range (-55°C ~ 125°C) provides broader thermal performance compared to the 4-103765-0 (-65°C ~ 105°C). The 4-103765-0 is Obsolete and RoHS non-compliant, limiting its use to legacy applications.

Q: Are there any material differences that affect performance?

A: The TSW-133-08-G-S-RA uses Polybutylene Terephthalate (PBT) insulation, while the 4-103765-0 uses thermoplastic insulation. Both materials meet UL94 V-0 flammability requirements. Material selection may influence mechanical properties and environmental resistance; application-specific environmental conditions should be considered.

Q: What is the significance of the Obsolete status for the 4-103765-0?

A: Obsolete status indicates that TE Connectivity has discontinued manufacturing and support for this part. Availability is limited to existing inventory. New designs should not incorporate obsolete parts. This part is suitable only for maintenance, repair, or retrofit of existing systems originally specified with this component.