TSS-120-02-S-D Equivalent & Substitute Parts

Part Overview

The TSS-120-02-S-D is an active rectangular connector header manufactured by Samtec Inc. in the Flex Stack series. This through-hole mounted connector features 40 positions arranged in 2 rows with 0.100" (2.54mm) pitch and shrouded 4-wall design. The connector is designed for board-to-board or cable applications with push-pull fastening and solder termination. Equivalent parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring compatible 40-position 2.54mm pitch header connectors.

Substiute Parts

TSS-120-02-S-D

Samtec Inc.In Stock: 974TSS-120-02-S-D Datasheet

Current PartRFQ

5103309-8

TE Connectivity AMP ConnectorsIn Stock: 15805103309-8 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 5103309-8 (TE Connectivity AMP Connectors) is classified as an equivalent based on the following critical parameters:

Matching 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)
• Shrouding: Shrouded - 4 Wall
• Mounting Type: Through Hole
• Termination: Solder
• Fastening Type: Push-Pull
• Contact Shape: Square
• Contact Finish - Mating: Gold
• Contact Finish Thickness - Mating: 30.0µin (0.76µm)
• Contact Finish - Post: Tin
• Features: Keying Slot
• Material Flammability Rating: UL94 V-0
• Insulation Color: Black
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• ECCN: EAR99
• HTSUS: 8536.69.4040

These parameters define the functional and mechanical compatibility required for direct substitution in applications utilizing the TSS-120-02-S-D connector.

Parameter Comparison

Engineering Selection Recommendations

Both the TSS-120-02-S-D and 5103309-8 are active products with ROHS3 compliance and UL94 V-0 flammability ratings. The connectors share identical mating pitch, position count, row configuration, shrouding design, and fastening mechanism. Both support through-hole solder termination with keying slot features and operate within overlapping temperature ranges suitable for industrial and commercial applications.

The TSS-120-02-S-D operates from -55°C to 125°C, while the 5103309-8 operates from -65°C to 105°C. Applications requiring the full -55°C to 125°C range should specify the TSS-120-02-S-D. The 5103309-8 provides extended low-temperature capability to -65°C for cryogenic or aerospace applications within its upper temperature limit of 105°C.

Contact material differs between the two parts: TSS-120-02-S-D uses Phosphor Bronze while 5103309-8 uses Brass. Both materials are suitable for standard electrical applications with gold-plated mating surfaces. Contact post length and insulation height show minor dimensional variations that may affect board layout and mating connector selection.

Frequently Asked Questions (FAQ)

Q: Can the 5103309-8 directly replace the TSS-120-02-S-D in existing designs?

A: Direct mechanical and electrical substitution is supported based on matching pitch, position count, row spacing, shrouding, and termination method. However, verify that the application's operating temperature range falls within -65°C to 105°C for the 5103309-8, as the TSS-120-02-S-D supports higher temperatures to 125°C. Minor dimensional differences in contact length and insulation height should be evaluated against specific board layout and mating connector specifications.

Q: What are the key compatibility criteria for these connectors?

A: Compatibility is determined by: 40-position count, 2-row configuration, 0.100" (2.54mm) mating pitch, 0.100" (2.54mm) row spacing, shrouded 4-wall design, through-hole mounting, solder termination, push-pull fastening, square contact shape, and keying slot feature. Both parts meet these criteria.

Q: How do the contact materials affect performance?

A: The TSS-120-02-S-D uses Phosphor Bronze contacts while the 5103309-8 uses Brass contacts. Both materials provide adequate electrical conductivity and mechanical durability for standard applications. Contact finish (gold plating at 30.0µin thickness on mating surfaces) is identical for both parts, ensuring equivalent corrosion resistance and contact reliability.

Q: Are there packaging differences between these parts?

A: The TSS-120-02-S-D is supplied in Bulk packaging, while the 5103309-8 is supplied in Tube packaging. Packaging format does not affect connector functionality or compatibility but may influence procurement, handling, and inventory management procedures.

Q: What is the significance of the current rating specification?

A: The 5103309-8 specifies a current rating of 1A per contact. The TSS-120-02-S-D does not provide a current rating specification in the available data. Applications requiring explicit current rating documentation should reference the 5103309-8 specification or contact the manufacturer for TSS-120-02-S-D current handling capacity.