SJ-3504 Equivalent & Substitute Parts

Part Overview

The SJ-3504 is a 4.6mm stereo phone jack connector manufactured by CUI Devices, designed for headphone and audio applications. This connector features a right-angle through-hole mounting configuration with solder termination, supporting 3-conductor TRS (Tip-Ring-Sleeve) stereo signals. The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing production and maintenance applications.

Substiute Parts

SJ-3504

CUI DevicesIn Stock: 665SJ-3504 Datasheet

Current PartRFQ

SJ1-3524N

CUI DevicesIn Stock: 5341SJ1-3524N Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The SJ1-3524N qualifies as a direct substitute for the SJ-3504 based on the following critical parameters:

Matching Electrical Characteristics:

• Identical mating diameter: 4.60mm (0.141", 1/8", Mini Plug)
• Identical signal configuration: Stereo (3 Conductor, TRS)
• Identical contact count: 3 Conductors, 4 Contacts
• Identical voltage rating: 12VDC
• Identical current rating: 1 A
• Identical internal switch configuration: Single Switch

Matching Mechanical Characteristics:

• Identical connector type: Phone Jack
• Identical gender: Female
• Identical mounting type: Through Hole, Right Angle
• Identical termination method: Solder
• Identical shielding: Unshielded
• Identical housing material: Polybutylene Terephthalate (PBT)

Compliance Alignment:

• Both parts maintain RoHS compliance (SJ-3504: RoHS Compliant; SJ1-3524N: ROHS3 Compliant)
• Both classified under identical HTSUS code: 8536.69.4040
• Both assigned identical ECCN: EAR99

The SJ1-3524N represents an active product from the same manufacturer family (SJ1 series versus SJ series), providing functional equivalence with improved availability and current production status.

Parameter Comparison

Engineering Selection Recommendations

The SJ1-3524N is the appropriate substitute for the obsolete SJ-3504 based on the following engineering criteria:

Product Status Consideration: The SJ-3504 is classified as obsolete, whereas the SJ1-3524N maintains active production status. This transition ensures continued component availability and supply chain reliability for new designs and production runs.

Compliance Certification: Both parts maintain RoHS compliance standards. The SJ1-3524N carries ROHS3 certification, representing the current regulatory standard, while the SJ-3504 holds RoHS Compliant status. This upgrade in certification level supports modern regulatory requirements.

Electrical and Mechanical Equivalence: The substitute part matches all critical electrical parameters (voltage rating, current rating, signal configuration) and mechanical specifications (connector type, mounting configuration, contact count, termination method). These parameters determine functional compatibility in audio jack applications.

Contact Plating Difference: The SJ-3504 features silver plating while the SJ1-3524N uses tin plating. Both materials provide adequate electrical conductivity and corrosion resistance for the specified 12VDC, 1A application. The tin plating in the substitute part aligns with current manufacturing standards and RoHS3 compliance requirements.

Packaging Consideration: The SJ1-3524N is supplied in tray packaging, which is standard for active production components and supports automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the SJ1-3524N directly replace the SJ-3504 in existing designs?

A: Yes. The SJ1-3524N provides direct functional replacement. Both connectors share identical mating diameter (4.60mm), signal configuration (stereo TRS), contact count (3 conductors, 4 contacts), mounting type (through-hole right angle), and electrical ratings (12VDC, 1A). PCB footprints and mechanical mounting are compatible.

Q: What is the significance of the contact plating difference between silver and tin?

A: Both silver and tin plating provide adequate electrical conductivity and corrosion resistance for audio jack applications operating at 12VDC with 1A current. The tin plating in the SJ1-3524N represents current manufacturing practice and supports ROHS3 compliance. No functional degradation occurs in the specified application.

Q: Why is the SJ-3504 listed as obsolete?

A: The SJ-3504 has been superseded by the SJ1-3524N within the CUI Devices product line. The SJ1 series represents the current generation of 4.6mm stereo phone jack connectors, offering improved availability and compliance with current regulatory standards.

Q: Are there any operating temperature differences between these parts?

A: The SJ-3504 specifies an operating temperature range of -25°C to 85°C. The SJ1-3524N does not provide an explicit operating temperature specification in the available data. For applications requiring confirmed temperature performance, contact the manufacturer for detailed thermal specifications of the SJ1-3524N.

Q: What packaging options are available for the SJ1-3524N?

A: The SJ1-3524N is supplied in tray packaging, which is standard for active production components and supports high-volume automated assembly operations.

Q: Are both parts RoHS compliant?

A: Yes. The SJ-3504 is RoHS Compliant, and the SJ1-3524N is ROHS3 Compliant. Both meet RoHS requirements. The ROHS3 designation on the substitute part indicates compliance with the current version of the RoHS directive.