TST-103-02-G-D Equivalent & Substitute Parts

Part Overview

The TST-103-02-G-D is an active rectangular connector header manufactured by Samtec Inc. in the Flex Stack series. This through-hole mounted connector features 6 positions arranged in 2 rows with 0.100" (2.54mm) pitch and shrouded 4-wall design. The component is designed for board-to-cable/wire applications with solder termination and push-pull fastening. Equivalent parts are identified when connector applications require alternative sourcing due to inventory availability, supply chain considerations, or design flexibility within established electrical and mechanical compatibility parameters.

Substiute Parts

TST-103-02-G-D

Samtec Inc.In Stock: 800TST-103-02-G-D Datasheet

Current PartRFQ

75869-131LF

Amphenol ICC (FCI)In Stock: 280275869-131LF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TST-103-02-G-D is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector Type: Header
• Contact Type: Male Pin
• Number of Positions: 6
• Number of Rows: 2
• Pitch - Mating: 0.100" (2.54mm)
• Row Spacing - Mating: 0.100" (2.54mm)
• Mounting Type: Through Hole
• Shrouding: Shrouded - 4 Wall
• Termination: Solder
• Fastening Type: Push-Pull
• Contact Shape: Square
• Contact Material: Phosphor Bronze

The substitute part 75869-131LF (Amphenol ICC/FCI Quickie™ series) meets all mandatory matching parameters, establishing functional and mechanical interchangeability for board-to-cable/wire applications. Both components feature identical mating pitch, row configuration, shrouding design, and termination method, enabling direct substitution in connector applications.

Parameter Comparison

Engineering Selection Recommendations

Both TST-103-02-G-D and 75869-131LF are active products with current manufacturing status and full compliance certifications. Selection between these components is based on the following engineering criteria:

TST-103-02-G-D (Samtec Flex Stack): Specified for applications requiring gold-plated post termination and PBT insulation material. Current rating of 3.4A per contact is explicitly defined. Thinner mating contact finish (10.0µin) suitable for standard insertion cycles.

75869-131LF (Amphenol ICC Quickie™): Specified for applications where tin-plated post termination is acceptable. Thicker mating contact finish (30.0µin) provides enhanced durability for high-cycle insertion applications. Thermoplastic insulation material meets equivalent flammability and mechanical requirements.

Both components satisfy ROHS3/RoHS compliance, UL94 V-0 flammability rating, and MSL 1 moisture sensitivity requirements. Mechanical interchangeability is established through identical pitch, row spacing, shrouding, and fastening specifications. Minor dimensional variations in contact length and insulation height fall within standard connector tolerance ranges and do not affect functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can 75869-131LF directly replace TST-103-02-G-D in existing designs?

A: Yes. Both connectors share identical mating pitch (0.100"), row configuration (2 rows, 6 positions), shrouding design (4-wall), and fastening method (push-pull). Mechanical and electrical interchangeability is established through these core parameters. Minor dimensional variations in contact length and insulation height are within standard connector tolerances.

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

A: TST-103-02-G-D features gold-plated posts (3.00µin thickness) and mating contacts (10.0µin thickness). 75869-131LF features tin-plated posts (78.7µin thickness) and gold-plated mating contacts with GXT™ enhancement (30.0µin thickness). Both finishes provide adequate electrical conductivity and corrosion resistance for standard applications.

Q: Are there differences in insulation material?

A: TST-103-02-G-D uses polybutylene terephthalate (PBT) glass-filled insulation, while 75869-131LF uses thermoplastic glass-filled insulation. Both materials meet UL94 V-0 flammability requirements and provide equivalent mechanical performance for through-hole mounting applications.

Q: Do both parts have the same current rating?

A: TST-103-02-G-D specifies 3.4A per contact. 75869-131LF does not provide an explicit current rating in the available specifications. For applications requiring confirmed current capacity, TST-103-02-G-D documentation should be referenced.

Q: What is the packaging difference?

A: TST-103-02-G-D is supplied in bulk packaging, while 75869-131LF is supplied in bag packaging. This difference affects inventory management and handling but does not impact component functionality or compatibility.

Q: Are both parts RoHS compliant?

A: Yes. TST-103-02-G-D is ROHS3 compliant. 75869-131LF is RoHS compliant. Both meet lead-free and hazardous substance restrictions for electronic component applications.