SJ-3545N Equivalent & Substitute Parts

Part Overview

The SJ-3545N is a 4.6mm stereo barrel connector (phone jack) manufactured by CUI Devices, designed for headphone and audio applications. This right-angle, through-hole mounted connector features a kinked pin termination and accommodates 3-conductor TRS (Tip-Ring-Sleeve) stereo signals. The part is currently in active production with 757 units available in new original stock.

Substitute parts are identified when they maintain electrical and mechanical compatibility across critical parameters including connector type, gender, signal configuration, mating diameter, mounting orientation, and termination method.

Substiute Parts

SJ-3545N

CUI DevicesIn Stock: 814SJ-3545N Datasheet

Current PartRFQ

SJ1-3545N

CUI DevicesIn Stock: 41063SJ1-3545N Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The SJ1-3545N qualifies as a direct substitute for the SJ-3545N based on the following critical parameters:

• Connector Type & Gender: Both are female phone jacks
• Signal Configuration: Both support stereo (3 Conductor, TRS) signals
• Mating Diameter: Both use 4.60mm (0.141", 1/8", Mini Plug) headphone standard
• Number of Contacts: Both feature 3 conductors with 5 total contacts
• Mounting Orientation: Both are right-angle, through-hole mounted
• Termination Method: Both use kinked pin termination
• Internal Switching: Both include two internal switches
• Shielding: Both are unshielded

The primary difference between these parts is the series designation (SJ versus SJ1) and packaging format, which do not affect electrical or mechanical compatibility in the application.

Parameter Comparison

Engineering Selection Recommendations

The SJ1-3545N is a qualified substitute for the SJ-3545N. Both parts are manufactured by CUI Devices and maintain identical electrical and mechanical specifications across all critical substitution parameters.

The SJ1-3545N carries Active product status and is ROHS3 compliant, confirming ongoing manufacturing support and regulatory compliance. The significantly higher inventory level (41,047 units versus 757 units) for the SJ1-3545N may provide supply chain advantages for high-volume applications.

Selection between these parts should be based on application-specific requirements including packaging format (bag versus unspecified for SJ-3545N), lead time, and inventory availability rather than electrical or mechanical performance differences.

Frequently Asked Questions (FAQ)

Q: Can the SJ1-3545N be used as a direct replacement for the SJ-3545N?

A: Yes. Both parts are female phone jacks with identical stereo (3 Conductor, TRS) signal configuration, 4.60mm mating diameter, right-angle through-hole mounting, kinked pin termination, and two internal switches. No circuit redesign or mechanical modification is required.

Q: What is the difference between the SJ series and SJ1 series designations?

A: The series designation reflects internal CUI Devices product line organization. The SJ1-3545N is the current active production variant. Both series maintain identical connector specifications for this model number.

Q: Are there packaging differences between these parts?

A: The SJ1-3545N is specified with Bag packaging. The SJ-3545N packaging format is not specified in available documentation. Verify packaging requirements for your assembly process before selection.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: connector type (phone jack), gender (female), signal configuration (stereo TRS), mating diameter (4.60mm), contact count (3 conductors, 5 contacts), mounting type (through-hole right-angle), termination method (kinked pin), and internal switch configuration (two switches).

Q: Is the SJ1-3545N suitable for high-volume production?

A: The SJ1-3545N has significantly higher inventory availability (41,047 units) compared to the SJ-3545N (757 units) and carries Active product status with ROHS3 compliance, supporting high-volume manufacturing requirements.