PJ-034A Barrel Connector Jack - Equivalent & Substitute Parts

Part Overview

The PJ-034A is a power barrel connector jack manufactured by CUI Devices, designed for through-hole mounting with solder termination. This connector features a 2.10mm ID / 5.50mm OD mating interface, rated for 16VDC at 2.5A, with a single normally closed internal switch. The part is classified as obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications.

Substiute Parts

PJ-034A

CUI DevicesIn Stock: 900PJ-034A Datasheet

Current PartRFQ

694106402002

Würth ElektronikIn Stock: 1512694106402002 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PJ-034A is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Mating diameter: 2.10mm ID / 5.50mm OD (industry recognized standard)
• Connector type and gender: Jack (Male)
• Contact configuration: 2 Conductors, 3 Contacts
• Internal switch function: Single Switch, Normally Closed
• Mounting method: Through Hole
• Termination type: Solder

Allowable Variation Parameters:

• Voltage rating: Substitute must meet or exceed 16VDC
• Current rating: Substitute must meet or exceed 2.5A
• Operating temperature range: Substitute must encompass or exceed -25°C ~ 85°C
• Housing material: May differ if mechanical and electrical performance is maintained
• Product status: Active status preferred for ongoing availability

The Würth Elektronik 694106402002 meets all critical matching parameters and exceeds electrical performance specifications, qualifying it as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The PJ-034A is classified as obsolete, necessitating transition to an active equivalent for new designs and ongoing production support. The Würth Elektronik 694106402002 (WR-DC series) provides direct functional equivalence with enhanced electrical performance margins.

Selection Basis:

The 694106402002 maintains identical mechanical interface geometry and contact configuration, ensuring physical and electrical compatibility with existing mating connectors and PCB layouts. The substitute exceeds the original voltage and current ratings (20VDC / 3A versus 16VDC / 2.5A), providing additional design margin. The extended operating temperature range (-40°C to 85°C versus -25°C to 85°C) accommodates broader environmental conditions.

Both components meet UL94 V-0 flammability requirements and maintain tin-plated contact surfaces. The substitute carries ROHS3 compliance and REACH affected status, meeting current regulatory requirements. Active product status ensures long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the 694106402002 be used as a direct replacement for the PJ-034A?

A: Yes. Both connectors share identical mating diameter (2.10mm ID / 5.50mm OD), contact configuration (2 Conductors, 3 Contacts), internal switch function (Single Switch, Normally Closed), and through-hole solder termination. Physical and electrical compatibility is maintained.

Q: What are the key differences between these two connectors?

A: The 694106402002 provides higher voltage rating (20VDC versus 16VDC), higher current capacity (3A versus 2.5A), and extended low-temperature operating range (-40°C versus -25°C minimum). Housing material differs (Polyamide PA66 versus Polybutylene Terephthalate), but both meet UL94 V-0 flammability standards.

Q: Why is the PJ-034A classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The Würth Elektronik 694106402002 is an active product with confirmed ongoing availability.

Q: Are there any packaging differences?

A: The PJ-034A packaging is not specified in available data. The 694106402002 is supplied in bulk packaging. Confirm packaging requirements with your procurement department.

Q: Do both connectors meet RoHS requirements?

A: Yes. The PJ-034A is RoHS Compliant. The 694106402002 is ROHS3 Compliant, meeting current regulatory standards.

Q: What is the mating length difference?

A: The PJ-034A has a mating depth of 0.374" (9.50mm). The 694106402002 has a mating depth of 0.354" (9.00mm). This 0.02" difference is within typical mechanical tolerance for barrel connector applications.