PJ-002A-SMT-TR Equivalent & Substitute Parts

Part Overview

The PJ-002A-SMT-TR is a surface mount power barrel connector jack manufactured by CUI Devices, featuring a 2.00mm ID / 5.50mm OD mating interface with 2 conductors and 3 contacts. This connector is designed for low-power DC applications with a rated voltage of 16VDC and current capacity of 2.5A. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing design support, maintenance, and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	PJ-002A-SMT-TR
Manufacturer	CUI Devices
Category	Barrel Connectors
Connector Type	Jack
Mating Diameter	2.00mm ID (0.079"), 5.50mm OD (0.217")
Number of Contacts	2 Conductors, 3 Contacts
Mounting Type	Surface Mount
Termination	Solder
Voltage Rating	16VDC
Current Rating	2.5A
Operating Temperature	-25°C ~ 85°C
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the PJ-002A-SMT-TR is determined by the following critical parameters that must remain consistent:

Mating Diameter: 2.00mm ID / 5.50mm OD (mechanical compatibility with mating plugs)
Contact Configuration: 2 Conductors, 3 Contacts (electrical and mechanical pin layout)
Connector Type: Jack (functional role in the assembly)
Termination Method: Solder (PCB integration method)
Internal Switch Configuration: Single Switch, Normally Closed (electrical behavior)
Housing Material: Polyamide (PA6T), Nylon 6T (material consistency)
Shielding: Unshielded (EMI characteristics)

The substitute part PJ-002AH-SMT-TR shares all critical parameters with the main part. Differences in voltage rating (24VDC vs. 16VDC), current capacity (5A vs. 2.5A), contact plating (Nickel vs. Silver), and mounting orientation (Right Angle vs. straight) represent enhanced or alternative specifications that do not prevent substitution in applications designed for the original part's electrical requirements.

Parameter Comparison

Parameter	PJ-002A-SMT-TR (Main)	PJ-002AH-SMT-TR (Substitute)
Manufacturer	CUI Devices	CUI Devices
Connector Type	Jack	Jack
Mating Diameter	2.00mm ID (0.079"), 5.50mm OD (0.217")	2.00mm ID (0.079"), 5.50mm OD (0.217")
Number of Contacts	2 Conductors, 3 Contacts	2 Conductors, 3 Contacts
Mounting Type	Surface Mount	Surface Mount, Right Angle
Termination	Solder	Solder
Internal Switch	Single Switch, Normally Closed	Single Switch, Normally Closed
Voltage Rating	16VDC	24VDC
Current Rating	2.5A	5A
Operating Temperature	-25°C ~ 85°C	-25°C ~ 85°C
Housing Material	Polyamide (PA6T), Nylon 6T	Polyamide (PA6T), Nylon 6T
Contact Material	Brass, Copper Alloy	Brass, Copper Alloy
Contact Plating	Silver	Nickel
Shielding	Unshielded	Unshielded
RoHS Status	RoHS Compliant	ROHS3 Compliant
Product Status	Obsolete	Active

Engineering Selection Recommendations

The PJ-002AH-SMT-TR is the direct substitute for the obsolete PJ-002A-SMT-TR. Both parts are manufactured by CUI Devices and share identical mating geometry, contact configuration, and electrical interface specifications. The substitute part is currently in active production status with higher inventory availability.

Selection of PJ-002AH-SMT-TR is supported by the following factors:

Compliance: Both parts maintain UL94 V-0 flammability rating and are RoHS compliant (substitute is ROHS3 compliant, representing current regulatory alignment)
Electrical Compatibility: The substitute's higher voltage rating (24VDC) and current capacity (5A) exceed the original part's specifications (16VDC, 2.5A), ensuring compatibility with applications designed for the original part
Mechanical Compatibility: Identical mating diameter and contact configuration ensure plug compatibility with existing mating connectors
Production Status: Active product status ensures long-term availability and supply chain continuity

The primary design consideration is the right-angle mounting orientation of the substitute part, which requires PCB layout verification to confirm mechanical fit within the target application.

Frequently Asked Questions (FAQ)

Q: Can PJ-002AH-SMT-TR be used as a direct replacement for PJ-002A-SMT-TR?

A: Yes. Both parts share identical mating diameter (2.00mm ID / 5.50mm OD), contact configuration (2 conductors, 3 contacts), and electrical interface. The substitute part's higher voltage and current ratings do not prevent substitution in applications designed for the original part's specifications.

Q: What is the primary difference between these two parts?

A: The PJ-002AH-SMT-TR features right-angle mounting orientation compared to the straight mounting of the PJ-002A-SMT-TR. Additionally, the substitute part has enhanced electrical ratings (24VDC vs. 16VDC; 5A vs. 2.5A) and uses nickel plating instead of silver plating on contacts.

Q: Are there any compatibility concerns with the contact plating difference?

A: No. Both silver and nickel plating are standard contact materials for barrel connectors. The nickel plating on the substitute part does not affect electrical compatibility with mating plugs designed for the original part.

Q: Does the right-angle mounting of PJ-002AH-SMT-TR affect compatibility?

A: The right-angle orientation affects only PCB layout and mechanical mounting. Electrical and mating interface compatibility remain unchanged. PCB design must accommodate the different mounting geometry.

Q: What is the inventory status of these parts?

A: PJ-002A-SMT-TR (obsolete) has 1094 pieces in stock. PJ-002AH-SMT-TR (active) has 4244 pieces in stock, providing superior supply chain availability.

Q: Are both parts RoHS compliant?

A: Yes. PJ-002A-SMT-TR is RoHS Compliant. PJ-002AH-SMT-TR is ROHS3 Compliant, representing alignment with current regulatory requirements.

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