SL-103-T-39 Equivalent & Substitute Parts

Part Overview

The SL-103-T-39 is a 3-position receptacle connector manufactured by Samtec Inc., designed for board-to-board applications with 0.100" (2.54mm) pitch spacing. This through-hole mounted connector features gold-plated female socket contacts and is currently in active production status. Finding equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate component availability across different procurement channels.

Substiute Parts

SL-103-T-39

Samtec Inc.In Stock: 1050SL-103-T-39 Datasheet

Current PartRFQ

SL-103-G-39

Samtec Inc.In Stock: 691SL-103-G-39 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The SL-103-T-39 can be substituted with the SL-103-G-39 based on the following critical parameters that determine functional equivalence:

• Connector Type & Contact Configuration: Both are 3-position receptacle connectors with female socket contacts
• Pitch Specification: Both maintain 0.100" (2.54mm) mating pitch
• Mounting & Termination: Both are through-hole mounted with solder termination
• Electrical & Environmental Ratings: Both operate across -55°C ~ 125°C temperature range
• Material Composition: Both use Liquid Crystal Polymer insulation and Beryllium Copper contacts
• Compliance Standards: Both are ROHS3 compliant with MSL 1 rating
• Series Designation: Both belong to the SL series from Samtec Inc.

The primary difference between these parts is the contact finish specification on the post termination, which does not affect the mating interface or core electrical performance.

Parameter Comparison

Engineering Selection Recommendations

Both the SL-103-T-39 and SL-103-G-39 are active production components from Samtec Inc. with identical ROHS3 compliance and regulatory classification. Selection between these parts should be based on:

• Supply Chain Availability: Current inventory levels differ (SL-103-T-39: 966 pcs; SL-103-G-39: 669 pcs)
• Post Finish Specification: The SL-103-G-39 includes specified gold plating on the post termination (10.0µin / 0.25µm), while the SL-103-T-39 does not specify this parameter
• Regulatory Compliance: The SL-103-G-39 includes REACH Affected status notation, which may be relevant for specific end-use applications

Both parts maintain identical mating interface specifications and environmental operating parameters, ensuring functional interchangeability in board-to-board connector applications.

Frequently Asked Questions (FAQ)

Q: Are SL-103-T-39 and SL-103-G-39 mechanically compatible?

A: Yes. Both connectors share identical pitch spacing (0.100" / 2.54mm), number of positions (3), mounting type (through-hole), and insulation geometry. They are mechanically interchangeable.

Q: What is the difference between these two part numbers?

A: The primary difference is the contact finish specification on the post termination. The SL-103-G-39 specifies gold plating on the post (10.0µin / 0.25µm), while the SL-103-T-39 does not specify this parameter. Both maintain identical gold plating on the mating interface (30.0µin / 0.76µm).

Q: Can I substitute SL-103-G-39 for SL-103-T-39 in existing designs?

A: Yes. Both parts are functionally equivalent for board-to-board connector applications, with identical electrical and environmental specifications. The SL-103-G-39 includes additional post finish specification.

Q: Are there any compliance differences between these parts?

A: Both parts are ROHS3 compliant with MSL 1 rating and EAR99 export classification. The SL-103-G-39 includes REACH Affected status notation, which may apply depending on your end-use application and geographic requirements.

Q: What is the operating temperature range for these connectors?

A: Both the SL-103-T-39 and SL-103-G-39 operate across -55°C to 125°C, suitable for industrial and commercial applications.

Q: Are these connectors suitable for high-reliability applications?

A: Both connectors use Beryllium Copper contacts with gold plating and Liquid Crystal Polymer insulation, standard materials for reliable board-to-board connections. Specific application requirements should be evaluated against the connector's electrical and environmental specifications.