TSS-120-05-S-D-RA Equivalent & Substitute Parts

Part Overview

The TSS-120-05-S-D-RA is a rectangular connector header manufactured by Samtec Inc., designed for through-hole, right-angle board-to-board or cable applications. This shrouded 40-position connector operates across -55°C to 125°C and meets UL94 V-0 flammability standards. The part is currently active in production with 747 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling component interchangeability in applications where the primary part becomes unavailable or when design requirements permit alternative series selection.

Substiute Parts

TSS-120-05-S-D-RA

Samtec Inc.In Stock: 758TSS-120-05-S-D-RA Datasheet

Current PartRFQ

TST-120-05-S-D-RA

Samtec Inc.In Stock: 973TST-120-05-S-D-RA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSS-120-05-S-D-RA is determined by strict alignment of the following critical parameters:

Electrical Compatibility Parameters:

• Connector type (Header)
• Contact type (Male Pin)
• Number of positions (40)
• Number of rows (2)
• Pitch - mating (0.100" / 2.54mm)
• Row spacing - mating (0.100" / 2.54mm)
• Contact material (Phosphor Bronze)
• Contact finish - mating (Gold)
• Operating temperature range (-55°C ~ 125°C)

Mechanical Compatibility Parameters:

• Mounting type (Through Hole, Right Angle)
• Shrouding configuration (Shrouded - 4 Wall)
• Termination method (Solder)
• Fastening type (Push-Pull)
• Contact length - mating (0.250" / 6.35mm)
• Contact length - post (0.230" / 5.84mm)
• Insulation height (0.365" / 9.27mm)
• Contact shape (Square)

Compliance Parameters:

• Material flammability rating (UL94 V-0)
• RoHS status (ROHS3 Compliant)
• Moisture sensitivity level (MSL 1)

The TST-120-05-S-D-RA qualifies as a substitute part because it maintains all critical electrical and mechanical parameters. The primary difference is the application style designation (Board to Cable/Wire versus Board to Board or Cable) and insulation material composition (glass-filled PBT variant), which do not affect functional interchangeability in applications requiring the specified electrical and mechanical interface.

Parameter Comparison

Engineering Selection Recommendations

Both the TSS-120-05-S-D-RA and TST-120-05-S-D-RA are active production parts manufactured by Samtec Inc. and maintain full ROHS3 compliance with UL94 V-0 flammability certification. The electrical and mechanical interface specifications are identical, including mating pitch, contact geometry, termination method, and operating temperature range.

The TST-120-05-S-D-RA variant incorporates glass-filled PBT insulation material, which provides enhanced mechanical properties compared to standard PBT. The TST-120-05-S-D-RA also specifies a current rating of 3.4A per contact, whereas the TSS-120-05-S-D-RA does not provide this specification in the available documentation.

Selection between these parts should be based on application requirements for insulation material properties and documented current handling capacity. Both parts are suitable for through-hole assembly with right-angle mounting and push-pull fastening in board-to-board or cable interconnect applications.

Frequently Asked Questions (FAQ)

Q: Can the TST-120-05-S-D-RA be used as a direct replacement for the TSS-120-05-S-D-RA?

A: Yes. Both connectors share identical electrical and mechanical interface specifications, including 40-position configuration, 0.100" (2.54mm) pitch, through-hole right-angle mounting, and solder termination. The primary difference is the insulation material composition (glass-filled PBT in the TST variant) and documented current rating specification.

Q: What is the significance of the glass-filled PBT insulation in the TST-120-05-S-D-RA?

A: Glass-filled PBT provides improved mechanical strength and dimensional stability compared to standard PBT. This material enhancement does not affect electrical interface compatibility but may provide benefits in applications requiring higher mechanical robustness or thermal cycling resistance.

Q: Are both parts suitable for the same PCB footprint?

A: Yes. Both connectors maintain identical mounting dimensions, contact spacing, and through-hole termination specifications. PCB footprints designed for the TSS-120-05-S-D-RA are directly compatible with the TST-120-05-S-D-RA.

Q: What is the difference between "Board to Board or Cable" and "Board to Cable/Wire" application designations?

A: The application style designation indicates the intended mating interface. The TSS-120-05-S-D-RA supports both board-to-board and cable applications, while the TST-120-05-S-D-RA is designated for board-to-cable/wire applications. Both connectors maintain the same physical interface and can accommodate equivalent mating connectors.

Q: Do both parts meet the same compliance and certification standards?

A: Yes. Both the TSS-120-05-S-D-RA and TST-120-05-S-D-RA are ROHS3 compliant, UL94 V-0 rated, and carry MSL 1 (Unlimited) moisture sensitivity classification. Both are active production parts with identical environmental and regulatory compliance profiles.

Q: What is the current handling capacity of these connectors?

A: The TST-120-05-S-D-RA specifies 3.4A per contact. The TSS-120-05-S-D-RA does not provide a documented current rating specification. Applications requiring defined current capacity should reference the TST-120-05-S-D-RA specification or consult Samtec technical documentation for the TSS variant.