TE Connectivity Potter & Brumfield D3067 Telecom Relay DPDT 24V Equivalent & Substitute Parts

Part Overview

The TE Connectivity Potter & Brumfield D3067 is a telecom relay with DPDT (2 Form C) contact configuration, rated for 2A at 24VDC coil voltage. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing system support and new designs. The D3067 features latching dual-coil operation with through-hole PC pin termination, suitable for telecom switching applications requiring 250VAC/220VDC maximum switching voltage.

Substiute Parts

D3067

TE Connectivity Potter & Brumfield RelaysIn Stock: 1110D3067 Datasheet

Current PartRFQ

TQ2-L2-24V

Panasonic Electric WorksIn Stock: 1048TQ2-L2-24V Datasheet

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TQ2H-L2-24V

Panasonic Electric WorksIn Stock: 706TQ2H-L2-24V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the D3067 are identified based on strict electrical and mechanical compatibility criteria. The following parameters must align for functional substitution:

Critical Matching Parameters:

• Contact Form: DPDT (2 Form C)
• Coil Voltage: 24VDC
• Coil Type: Latching, Dual Coil
• Coil Current: 12.5 mA
• Coil Resistance: 1.92 kOhms
• Mounting Type: Through Hole
• Termination Style: PC Pin
• Relay Type: Telecom

Allowable Variation Parameters:

• Contact Rating (Current): Substitute parts rated at 1A are acceptable for applications not requiring the full 2A capacity of the original part
• Switching Voltage: Substitute parts with lower maximum switching voltage (125VAC/110VDC) are acceptable for applications operating within these limits
• Operating Temperature Range: Substitute parts with narrower temperature range (-40°C ~ 70°C) are acceptable for applications within this range
• Contact Material: Variations in precious metal composition are acceptable provided electrical performance requirements are met

The Panasonic Electric Works TQ2-L2-24V and TQ2H-L2-24V meet all critical matching parameters and are classified as active products with current manufacturing status.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Part Replacement:

The D3067 is classified as obsolete. Both Panasonic Electric Works TQ2-L2-24V and TQ2H-L2-24V are active products suitable for replacement applications.

Compliance Considerations:

Both substitute parts maintain RoHS compliance. The TQ2-L2-24V carries ROHS3 Compliant status, while the TQ2H-L2-24V carries RoHS Compliant status. Both parts are classified as REACH Unaffected or equivalent, maintaining regulatory alignment with the original D3067.

Current Rating Derating:

Applications requiring the full 2A contact rating of the D3067 cannot be directly substituted with the 1A-rated TQ2-L2-24V or TQ2H-L2-24V. Circuit designs operating at or below 1A contact current are suitable for substitution.

Switching Voltage Derating:

Applications requiring the 250VAC/220VDC maximum switching voltage of the D3067 cannot be directly substituted with the 125VAC/110VDC-rated Panasonic parts. Circuit designs operating within 125VAC/110VDC limits are suitable for substitution.

Temperature Range Consideration:

The D3067 operates to 85°C maximum, while substitute parts operate to 70°C maximum. Applications requiring operation above 70°C are not suitable for substitution with the Panasonic parts.

Switching Speed Difference:

The D3067 exhibits 20 ms operate and release times, while Panasonic substitutes exhibit 3 ms switching times. Applications with timing-critical requirements must account for this performance difference.

Frequently Asked Questions (FAQ)

Q: Can the TQ2-L2-24V or TQ2H-L2-24V directly replace the D3067 in all applications?

A: No. Direct substitution is limited to applications where contact current does not exceed 1A, switching voltage does not exceed 125VAC/110VDC, and operating temperature does not exceed 70°C. Applications requiring the full 2A rating, higher switching voltage, or extended temperature range require circuit redesign or alternative parts.

Q: What is the difference between TQ2-L2-24V and TQ2H-L2-24V?

A: Both parts share identical electrical specifications, coil voltage, contact form, and coil characteristics. The primary difference is the base product number designation (TQ2-L versus TQ2H), which may indicate packaging or mechanical variant differences. Both are suitable for through-hole PC pin termination applications.

Q: Are the Panasonic substitutes RoHS compliant?

A: Yes. The TQ2-L2-24V is ROHS3 Compliant, and the TQ2H-L2-24V is RoHS Compliant. Both meet current regulatory requirements for RoHS compliance.

Q: How do the switching times differ between the D3067 and Panasonic substitutes?

A: The D3067 operates with 20 ms operate time and 20 ms release time. The Panasonic TQ2-L2-24V and TQ2H-L2-24V operate with 3 ms operate time and 3 ms release time. Applications with timing-critical switching requirements must account for this sevenfold improvement in switching speed.

Q: Can the Panasonic parts handle the same contact current as the D3067?

A: No. The D3067 is rated for 2A contact current, while the Panasonic TQ2-L2-24V and TQ2H-L2-24V are rated for 1A contact current. Applications requiring contact currents between 1A and 2A cannot use the Panasonic substitutes without circuit modification.

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

A: Both Panasonic substitute parts maintain the same 1.92 kOhms coil resistance as the D3067, ensuring identical coil drive circuit requirements and 12.5 mA coil current specifications.

Q: Are the substitute parts available in the same packaging as the D3067?

A: The Panasonic substitutes are supplied in tube packaging. The D3067 packaging specification was not provided in the original documentation. Both parts feature identical through-hole PC pin termination suitable for printed circuit board assembly.

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

A: The Panasonic TQ2-L2-24V and TQ2H-L2-24V use Silver (Ag) and Gold (Au) contact materials, differing from the D3067 which uses Palladium (Pd), Ruthenium (Ru), and Gold (Au). Both material compositions are suitable for telecom relay applications.

Q: Can the substitute parts operate at the same temperature extremes as the D3067?

A: No. The D3067 operates from -40°C to 85°C, while the Panasonic substitutes operate from -40°C to 70°C. Applications requiring operation above 70°C cannot use the Panasonic substitutes.