ESW-103-37-L-D Equivalent & Substitute Parts

Part Overview

The ESW-103-37-L-D is a 6-position elevated socket connector manufactured by Samtec Inc., designed for board-to-board applications with 0.100" (2.54mm) pitch spacing. This through-hole component features gold-plated mating contacts and tin-plated posts, operating across -55°C to 125°C with a current rating of 5.2A per contact and 550VAC voltage rating. The connector is actively produced and ROHS3 compliant, making it suitable for industrial and commercial electronic assemblies requiring reliable interconnection with push-pull fastening.

Substitute parts become necessary when addressing inventory constraints, lead time requirements, or design flexibility needs while maintaining identical electrical and mechanical performance specifications.

Substiute Parts

ESW-103-37-L-D

Samtec Inc.In Stock: 1100ESW-103-37-L-D Datasheet

Current PartRFQ

ESW-103-12-L-D

Samtec Inc.In Stock: 1127ESW-103-12-L-D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The ESW-103-37-L-D qualifies ESW-103-12-L-D as a direct substitute based on the following critical parameters that determine functional interchangeability:

• Connector Type: Both are elevated socket connectors
• Number of Positions: Both feature 6 positions
• Pitch - Mating: Both maintain 0.100" (2.54mm) spacing
• Number of Rows: Both configured as 2-row layouts
• Row Spacing - Mating: Both use 0.100" (2.54mm) row spacing
• Mounting Type: Both are through-hole mounted
• Contact Finish - Mating: Both use gold plating
• Current Rating: Both rated at 5.2A per contact
• Voltage Rating: Both rated at 550VAC
• Operating Temperature: Both operate -55°C ~ 125°C
• Material Flammability Rating: Both meet UL94 V-0
• Insulation Material: Both use Liquid Crystal Polymer (LCP)
• Contact Material: Both use Phosphor Bronze
• Termination: Both use solder termination
• Fastening Type: Both use push-pull fastening

Substitution is valid when these parameters remain constant across both components.

Parameter Comparison

Engineering Selection Recommendations

Both ESW-103-37-L-D and ESW-103-12-L-D are active production components from Samtec Inc. with identical electrical and mechanical specifications. Selection between these parts should be based on:

Inventory availability: ESW-103-12-L-D currently maintains 1044 pieces in stock versus 1037 pieces for ESW-103-37-L-D, providing marginal supply flexibility.

Compliance status: Both components meet ROHS3 compliance and carry EAR99 export classification, ensuring regulatory equivalence for industrial and commercial applications.

Moisture sensitivity: ESW-103-12-L-D is rated MSL 1 (Unlimited), while ESW-103-37-L-D is rated Not Applicable. This distinction does not affect functional performance but may influence storage and handling protocols in moisture-sensitive environments.

Both connectors are suitable for direct substitution in board-to-board interconnection applications requiring 6-position, 0.100" pitch elevated socket configurations with gold-plated contacts and 5.2A per contact current capacity.

Frequently Asked Questions (FAQ)

Q: Are ESW-103-37-L-D and ESW-103-12-L-D electrically interchangeable?

A: Yes. Both connectors share identical electrical specifications including 5.2A per contact current rating, 550VAC voltage rating, and operating temperature range of -55°C to 125°C.

Q: Do these connectors have the same physical dimensions?

A: Yes. Both feature 6 positions arranged in 2 rows with 0.100" (2.54mm) pitch spacing, 0.435" (11.05mm) insulation height, and 0.090" (2.29mm) contact post length.

Q: Can I use ESW-103-12-L-D as a direct replacement for ESW-103-37-L-D on existing PCBs?

A: Yes. The connectors are mechanically and electrically identical, allowing direct substitution without PCB redesign or layout modifications.

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

A: The primary differences are inventory levels and moisture sensitivity rating. ESW-103-12-L-D carries MSL 1 (Unlimited) rating, while ESW-103-37-L-D is rated Not Applicable. Both maintain identical performance characteristics.

Q: Are both parts ROHS3 compliant?

A: Yes. Both ESW-103-37-L-D and ESW-103-12-L-D meet ROHS3 compliance requirements.

Q: What contact material is used in these connectors?

A: Both connectors use Phosphor Bronze contacts with gold plating on mating surfaces (10.0µin thickness) and tin plating on solder posts.

Q: What insulation material is used?

A: Both connectors use Liquid Crystal Polymer (LCP) insulation material rated UL94 V-0 for flammability.