HSEC8-137-01-L-DV-A-TR Equivalent & Substitute Parts

Part Overview

The HSEC8-137-01-L-DV-A-TR is a 74-position female card edge connector from Samtec Inc.'s Edge Rate™ HSEC8 series. This dual-edge connector features a 0.031" (0.80mm) pitch and is designed for surface mount applications with solder termination. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified to address packaging availability and inventory considerations while maintaining identical electrical and mechanical specifications.

Substiute Parts

HSEC8-137-01-L-DV-A-TR

Samtec Inc.In Stock: 739HSEC8-137-01-L-DV-A-TR Datasheet

Current PartRFQ

HSEC8-137-01-L-DV-A

Samtec Inc.In Stock: 1766HSEC8-137-01-L-DV-A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the HSEC8-137-01-L-DV-A-TR is based on strict equivalence of the following critical parameters:

• Number of positions: 74 (dual edge, 37 per row)
• Pitch: 0.031" (0.80mm)
• Card thickness: 0.062" (1.57mm)
• Gender: Female
• Contact material: Beryllium Copper
• Contact finish: Gold
• Mounting type: Surface Mount
• Termination: Solder
• Operating temperature range: -55°C to 125°C
• Insulation material: Liquid Crystal Polymer (LCP)
• RoHS compliance: ROHS3

The primary substitute part differs only in packaging format (Tray vs. Tape & Reel) and includes an additional locking ramp feature. All electrical and mechanical specifications remain identical.

Parameter Comparison

Engineering Selection Recommendations

Both parts maintain identical electrical and mechanical specifications required for 74-position dual-edge card edge connector applications. Selection between HSEC8-137-01-L-DV-A-TR and HSEC8-137-01-L-DV-A is determined by packaging requirements and application constraints:

The HSEC8-137-01-L-DV-A-TR in Tape & Reel packaging is suitable for high-volume automated assembly processes. The HSEC8-137-01-L-DV-A in Tray packaging accommodates manual assembly workflows and lower-volume production runs. The addition of a locking ramp feature on the substitute part provides enhanced mechanical retention without affecting electrical performance.

Both parts carry ROHS3 compliance and MSL 1 rating, confirming suitability for standard storage and handling conditions without moisture bake-out requirements.

Frequently Asked Questions (FAQ)

Q: Are HSEC8-137-01-L-DV-A-TR and HSEC8-137-01-L-DV-A electrically identical?

A: Yes. Both parts feature identical contact material (Beryllium Copper), contact finish (Gold, 10.0µin), pitch (0.031"), position count (74), and operating temperature range (-55°C to 125°C). Electrical performance is equivalent.

Q: What is the difference between Tape & Reel and Tray packaging?

A: Tape & Reel (TR) packaging is optimized for automated pick-and-place assembly equipment. Tray packaging is used for manual assembly or lower-volume applications. Both formats contain the same connector specifications.

Q: Does the locking ramp feature on the substitute part affect compatibility?

A: The locking ramp is an additional mechanical feature that enhances retention. It does not alter the electrical interface or mechanical mounting footprint. Compatibility with existing card edge designs is maintained.

Q: Are both parts RoHS3 compliant?

A: Yes. Both HSEC8-137-01-L-DV-A-TR and HSEC8-137-01-L-DV-A carry ROHS3 compliance certification.

Q: What is the MSL rating for these connectors?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard storage conditions are acceptable without special handling or bake-out procedures.

Q: Can I use the substitute part as a direct replacement in my assembly?

A: Yes, provided your assembly process accommodates the Tray packaging format. The electrical and mechanical specifications are fully equivalent to the original part number.