ASJ-137-D-T/R Equivalent & Substitute Parts

Part Overview

The ASJ-137-D-T/R is a 4.60mm stereo phone jack connector manufactured by Adam Tech, designed for audio applications requiring a female surface mount, right angle configuration with solder termination. This connector features three conductors (TRS - Tip, Ring, Sleeve) for stereo signal transmission. The product is currently obsolete, making identification of equivalent and substitute components essential for ongoing system support, maintenance, and new design implementations where this connector type is specified.

Substiute Parts

ASJ-137-D-T/R

Adam TechIn Stock: 965ASJ-137-D-T/R Datasheet

Current PartRFQ

SJ-3523-SMT-TR

CUI DevicesIn Stock: 100316SJ-3523-SMT-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASJ-137-D-T/R is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Connector type: Phone Jack (4.6mm stereo)
• Gender: Female
• Signal configuration: Stereo (3 Conductor, TRS)
• Industry recognized mating diameter: 4.60mm (0.141", 1/8", Mini Plug)
• Actual diameter: 0.142" (3.60mm)
• Number of contacts: 3 Conductors, 3 Contacts
• Mounting type: Surface Mount, Right Angle
• Termination method: Solder
• Current rating: 1 A
• Shielding: Unshielded

The SJ-3523-SMT-TR from CUI Devices meets all critical matching parameters and is classified as an active product with current manufacturing availability, making it a direct functional equivalent for the obsolete ASJ-137-D-T/R.

Parameter Comparison

Engineering Selection Recommendations

The SJ-3523-SMT-TR is the direct substitute for the obsolete ASJ-137-D-T/R. Both components share identical mechanical and electrical specifications for all critical parameters governing connector compatibility: mating diameter, contact configuration, mounting orientation, and termination method.

The SJ-3523-SMT-TR offers the advantage of active product status with established manufacturing and supply chain availability. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and legacy system support.

Voltage rating differences (30VDC vs. 12VDC) and contact plating material variations (gold vs. silver) are secondary parameters that do not affect functional interchangeability in standard audio jack applications. Operating temperature specification is provided for the SJ-3523-SMT-TR (-25°C ~ 85°C), establishing the operational envelope for this substitute component.

Frequently Asked Questions (FAQ)

Q: Can the SJ-3523-SMT-TR directly replace the ASJ-137-D-T/R in existing designs?

A: Yes. Both connectors share identical specifications for connector type, gender, signal configuration, mating diameter, contact count, mounting type, and termination method. The SJ-3523-SMT-TR is a direct functional equivalent.

Q: What are the differences between these two connectors?

A: The primary differences are product status (obsolete vs. active), voltage rating (30VDC vs. 12VDC), contact plating material (gold vs. silver), and housing material composition (thermoplastic vs. polyamide nylon 6T). These differences do not affect mechanical or electrical interchangeability for standard stereo audio jack applications.

Q: Are there packaging differences between these components?

A: The ASJ-137-D-T/R packaging information is not specified in available data. The SJ-3523-SMT-TR is supplied in Cut Tape (CT) and Digi-Reel® packaging formats, standard for surface mount components.

Q: Do both connectors meet the same compliance standards?

A: Yes. Both the ASJ-137-D-T/R and SJ-3523-SMT-TR are ROHS3 compliant, REACH unaffected, classified under ECCN EAR99, and share the same HTSUS code (8536.69.4040). Both have MSL rating of 1 (Unlimited).

Q: What is the mating diameter specification for these connectors?

A: Both connectors are designed for 4.60mm (0.141", 1/8", Mini Plug) headphone jack mating, with an actual diameter of 0.142" (3.60mm). This specification ensures compatibility with standard 4.6mm audio plugs.

Q: Are these connectors suitable for high-frequency audio applications?

A: Both connectors are unshielded stereo phone jacks rated for 1 A current at their respective voltage ratings. Application suitability depends on specific circuit requirements and signal integrity needs beyond the scope of these component specifications.