ASJ-145L-J-T/R Equivalent & Substitute Parts

Part Overview

The ASJ-145L-J-T/R is a 2.50mm ID stereo phone jack connector manufactured by Adam Tech, designed for audio applications requiring a 4-conductor TRRS (Tip-Ring-Ring-Sleeve) configuration. This surface mount, right-angle connector features solder termination and gold-plated phosphor bronze contacts. The part is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and component procurement.

Substiute Parts

ASJ-145L-J-T/R

Adam TechIn Stock: 1025ASJ-145L-J-T/R Datasheet

Current PartRFQ

ASJ-103-J-T/R

Adam TechIn Stock: 1697ASJ-103-J-T/R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ASJ-145L-J-T/R is determined by strict alignment across the following critical parameters:

• Connector type and mating diameter (2.50mm ID stereo phone jack)
• Signal configuration (4-conductor TRRS with 5 total contacts)
• Mounting configuration (surface mount, right angle orientation)
• Termination method (solder)
• Electrical ratings (30VDC, 500 mA minimum)
• Operating temperature range (-20°C to 70°C minimum)
• Internal switch configuration (single switch)
• Compliance certifications (ROHS3, REACH Unaffected)

The ASJ-103-J-T/R meets all substitution criteria. Both connectors share identical mechanical and electrical specifications, with the primary distinction being product status and contact material composition.

Parameter Comparison

Engineering Selection Recommendations

The ASJ-103-J-T/R is the direct functional equivalent for the obsolete ASJ-145L-J-T/R. Both connectors maintain identical electrical performance specifications, mechanical dimensions, and compliance certifications (ROHS3 Compliant, REACH Unaffected). The ASJ-103-J-T/R is currently in active production status with confirmed inventory availability (1638 units), ensuring reliable procurement for new designs and ongoing production support.

The contact material composition differs (phosphor bronze versus brass base material), but both configurations meet the specified electrical and mechanical requirements. This material variation does not affect functional compatibility within the defined operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the ASJ-103-J-T/R be used as a direct replacement for the ASJ-145L-J-T/R?

A: Yes. Both connectors share identical specifications for mating diameter, signal configuration, mounting type, termination method, electrical ratings, and operating temperature range. The ASJ-103-J-T/R is functionally equivalent and maintains full compatibility.

Q: What is the difference between phosphor bronze and brass contact materials?

A: Both materials are acceptable for this connector application and meet the specified electrical performance requirements. The contact material composition does not affect functional compatibility within the defined operating parameters of 30VDC and 500 mA.

Q: Why is the ASJ-145L-J-T/R listed as obsolete?

A: Product status reflects manufacturer lifecycle decisions. The ASJ-103-J-T/R remains in active production and provides equivalent functionality for all applications previously served by the ASJ-145L-J-T/R.

Q: Are there packaging differences between these parts?

A: The ASJ-145L-J-T/R packaging information is not specified in available data. The ASJ-103-J-T/R is supplied in Cut Tape (CT) packaging. Confirm packaging requirements with your procurement specifications.

Q: Do both connectors meet the same compliance standards?

A: Yes. Both the ASJ-145L-J-T/R and ASJ-103-J-T/R are ROHS3 Compliant and REACH Unaffected, meeting equivalent regulatory requirements.

Q: What is the mating depth specification?

A: Both connectors have a mating depth of 0.433" (11.00mm), ensuring identical board-to-connector interface dimensions.