D3063 Telecom Relay DPDT 2A 5V Equivalent & Substitute Parts

Part Overview

The D3063 is a telecom-grade double-pole double-throw (DPDT) relay manufactured by TE Connectivity Potter & Brumfield Relays, part of the FP2 and AXICOM series. This through-hole mounted relay operates at 5VDC with a 2A contact rating and is designed for telecom switching applications. The D3063 is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations where this relay specification is required.

Substiute Parts

D3063

TE Connectivity Potter & Brumfield RelaysIn Stock: 1200D3063 Datasheet

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TQ2-L2-5V

Panasonic Electric WorksIn Stock: 6444TQ2-L2-5V Datasheet

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TQ2H-L2-5V

Panasonic Electric WorksIn Stock: 2144TQ2H-L2-5V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the D3063 telecom relay are identified based on strict electrical and mechanical compatibility criteria. The following parameters must align for a part to function as a direct substitute:

Critical Matching Parameters:

• Contact Form: DPDT (2 Form C) configuration
• Coil Voltage: 5VDC operation
• Coil Type: Latching, Dual Coil design
• Mounting Type: Through Hole
• Termination Style: PC Pin
• Relay Type: Telecom classification
• Coil Resistance: 125 Ohms
• Coil Current: 40 mA

Allowable Parameter Variations: Substitute parts may differ in contact rating current, switching voltage maximum, operating temperature range, and contact material composition, provided the application requirements do not exceed the substitute part's specifications. The D3063 specifies a 2A contact rating; substitute parts with lower current ratings (1A) are acceptable only for applications requiring 1A or less.

The identified substitutes—TQ2-L2-5V and TQ2H-L2-5V from Panasonic Electric Works—meet all critical matching parameters and maintain the same coil voltage, coil type, and mechanical configuration as the D3063.

Parameter Comparison

Engineering Selection Recommendations

D3063 Obsolescence Status: The D3063 is classified as obsolete. Both substitute parts—TQ2-L2-5V and TQ2H-L2-5V—are active products from Panasonic Electric Works, ensuring long-term availability and supply chain continuity.

Compliance Considerations: The D3063 is RoHS Compliant. The TQ2-L2-5V is ROHS3 Compliant, and the TQ2H-L2-5V is RoHS Compliant. Both substitutes meet or exceed the environmental compliance requirements of the original part.

Current Rating Limitation: The substitute parts carry a 1A contact rating compared to the D3063's 2A rating. Selection of either substitute requires confirmation that the application current does not exceed 1A. Applications requiring the full 2A capability of the D3063 cannot use these substitutes.

Switching Voltage Limitation: The substitute parts are rated for 125VAC and 110VDC maximum switching voltage, compared to the D3063's 250VAC and 220VDC maximum. Applications requiring switching voltages above 125VAC or 110VDC cannot use these substitutes.

Operating Temperature Range: The substitute parts operate over -40°C to 70°C, compared to the D3063's -40°C to 85°C range. Applications requiring operation above 70°C cannot use these substitutes.

Switching Speed: The substitute parts exhibit faster switching times (3 ms operate and release) compared to the D3063 (20 ms). This represents an improvement in switching performance.

Packaging: Both substitute parts are supplied in Tube packaging, consistent with standard telecom relay distribution formats.

Frequently Asked Questions (FAQ)

Q: Can the TQ2-L2-5V or TQ2H-L2-5V be used as direct replacements for the D3063 in all applications?

A: No. Both substitute parts have a 1A contact rating versus the D3063's 2A rating. They are suitable only for applications requiring 1A or less. Additionally, the substitute parts are limited to 125VAC/110VDC switching voltage and -40°C to 70°C operating temperature, compared to the D3063's higher ratings. Verify that your application requirements fall within these limits before selecting a substitute.

Q: What is the difference between TQ2-L2-5V and TQ2H-L2-5V?

A: Both parts share identical electrical specifications: 5VDC coil voltage, 1A contact rating, 40 mA coil current, 125 Ohms coil resistance, latching dual-coil design, and DPDT contact form. The primary difference is the base product number designation (TQ2-L versus TQ2H), which may reflect internal design variations or packaging differences within the Panasonic TQ series. Both are active products with equivalent availability and compliance status.

Q: Are the substitute parts RoHS compliant?

A: Yes. The TQ2-L2-5V is ROHS3 Compliant, and the TQ2H-L2-5V is RoHS Compliant. Both meet environmental compliance requirements equal to or exceeding the D3063.

Q: What is the impact of the faster switching times in the substitute parts?

A: The substitute parts operate and release in 3 ms compared to the D3063's 20 ms. This faster switching performance is generally beneficial for telecom applications and does not create compatibility issues. However, if the application circuit is designed to accommodate the D3063's 20 ms timing, the faster response of the substitutes should be verified against circuit timing requirements.

Q: Can I use these substitutes in applications requiring operation above 70°C?

A: No. The substitute parts are rated for -40°C to 70°C operation. The D3063 supports -40°C to 85°C. Applications requiring operation above 70°C must use the D3063 or identify alternative parts with higher temperature ratings.

Q: What contact materials are used in the substitute parts?

A: The substitute parts use Silver (Ag) and Gold (Au) contact materials, compared to the D3063's Palladium (Pd), Ruthenium (Ru), and Gold (Au). Both material compositions are suitable for telecom relay applications. Contact material selection should be verified against specific application requirements regarding corrosion resistance and contact wear characteristics.

Q: Are both substitute parts available in the same packaging format?

A: Yes. Both TQ2-L2-5V and TQ2H-L2-5V are supplied in Tube packaging, consistent with standard telecom relay distribution and PCB assembly processes.

Q: What is the coil resistance of the substitute parts?

A: Both substitute parts have a coil resistance of 125 Ohms, identical to the D3063. This ensures compatibility with existing drive circuits designed for the original part.