D3010 Telecom Relay DPDT 9V Equivalent & Substitute Parts

Part Overview

The D3010 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 9VDC with a 2A contact rating and is designed for telecommunications applications requiring high-reliability switching. The D3010 is classified as obsolete, making identification of equivalent substitute parts essential for ongoing system maintenance, repair, and new design implementations where legacy component compatibility is required.

Substiute Parts

D3010

TE Connectivity Potter & Brumfield RelaysIn Stock: 1720D3010 Datasheet

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TQ2-9V

Panasonic Electric WorksIn Stock: 1147TQ2-9V Datasheet

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TQ2H-9V

Panasonic Electric WorksIn Stock: 1110TQ2H-9V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the D3010 are identified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

• Coil voltage: 9VDC (exact match required)
• Contact form: DPDT (2 Form C) configuration
• Coil type: Non-latching operation
• Mounting type: Through-hole with PC pin termination
• Coil current: 15.5 mA (matching drive requirements)
• Moisture sensitivity level: MSL 1 (unlimited shelf life)

Secondary Compatibility Parameters:

• Must operate voltage and must release voltage ranges
• Operate and release time specifications
• Operating temperature range capability
• Contact material composition (precious metal contacts)
• Relay type classification: Telecom-grade

The substitute parts TQ2-9V and TQ2H-9V from Panasonic Electric Works meet the critical matching parameters. Both are active-status telecom relays with identical 9VDC coil voltage, DPDT contact form, non-latching coil type, through-hole mounting, and 15.5 mA coil current. Both maintain MSL 1 rating and are RoHS compliant. The primary difference between the D3010 and its substitutes is the contact rating current specification, where the D3010 supports 2A while the TQ2-9V and TQ2H-9V support 1A maximum contact current.

Parameter Comparison

Engineering Selection Recommendations

D3010 Obsolescence Status: The D3010 is classified as obsolete and no longer manufactured by TE Connectivity Potter & Brumfield Relays. For applications currently using the D3010, transition to an active substitute part is necessary for long-term supply chain continuity and future system support.

Active Substitute Options: Both TQ2-9V and TQ2H-9V from Panasonic Electric Works are active-status products with established manufacturing continuity. Both substitutes are RoHS compliant and maintain MSL 1 rating, ensuring compatibility with modern manufacturing and storage requirements.

Compliance Considerations: The D3010 is RoHS Compliant. The TQ2-9V is ROHS3 Compliant, and the TQ2H-9V is RoHS Compliant. Both Panasonic substitutes meet or exceed the compliance requirements of the original part. The TQ2H-9V provides direct RoHS compliance alignment with the D3010.

Contact Rating Limitation: The primary electrical difference between the D3010 and its Panasonic substitutes is the contact rating current. The D3010 supports 2A maximum contact current, while both TQ2-9V and TQ2H-9V support 1A maximum contact current. Applications requiring contact currents exceeding 1A cannot use these substitutes without circuit redesign.

Switching Voltage Consideration: The D3010 supports switching voltages up to 250VAC and 220VDC maximum. The Panasonic substitutes support switching voltages up to 125VAC and 110VDC maximum. Applications requiring higher switching voltage capability must evaluate circuit requirements against substitute specifications.

Temperature Range: The D3010 operates across -40°C to 85°C. The Panasonic substitutes operate across -40°C to 70°C. Applications requiring operation above 70°C cannot use these substitutes.

Timing Characteristics: The D3010 has an operate time of 4 ms and release time of 3 ms. The Panasonic substitutes have an operate time of 3 ms and release time of 3 ms. The faster operate time of the substitutes may affect circuit timing in applications with strict timing requirements.

Frequently Asked Questions (FAQ)

Q: Can the TQ2-9V or TQ2H-9V directly replace the D3010 in all applications?

A: Direct replacement is possible only in applications where the contact current requirement does not exceed 1A, the switching voltage does not exceed 125VAC or 110VDC, and the operating temperature range does not exceed -40°C to 70°C. The D3010 supports higher contact current (2A), higher switching voltage (250VAC, 220VDC), and wider temperature range (-40°C to 85°C). Applications exceeding these substitute specifications require alternative solutions.

Q: What is the difference between TQ2-9V and TQ2H-9V?

A: Both TQ2-9V and TQ2H-9V are functionally equivalent telecom relays with identical electrical specifications, coil voltage, contact form, coil current, and operating characteristics. The primary distinction is the base product number designation (TQ2 versus TQ2H). Both are active-status products from Panasonic Electric Works with equivalent availability and compliance certifications. Selection between these two substitutes should be based on specific PCB layout requirements or internal circuit design considerations not specified in the provided parameters.

Q: Are the coil resistance values close enough to ensure proper circuit operation?

A: The D3010 has a coil resistance of 574 Ohms, while both Panasonic substitutes have a coil resistance of 579 Ohms. This 5-Ohm difference represents less than 1% variance and is within normal manufacturing tolerance for relay coils. Both substitutes will operate correctly in circuits designed for the D3010 coil resistance specification.

Q: What is the significance of the MSL 1 rating for all three relays?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life with no special moisture control requirements during storage or handling. All three relays—D3010, TQ2-9V, and TQ2H-9V—carry MSL 1 rating, meaning they can be stored and handled under standard conditions without desiccant packaging or controlled humidity environments.

Q: How do the must-operate and must-release voltage specifications affect substitution?

A: The D3010 must operate at 6.3 VDC minimum and must release at 0.9 VDC maximum. The Panasonic substitutes must operate at 6.75 VDC minimum and must release at 0.9 VDC maximum. The 0.45 VDC higher operate threshold for the substitutes means they require slightly higher coil voltage to guarantee operation. In circuits with marginal voltage supplies near 6.3 VDC, the substitutes may not reliably operate. Circuits with coil voltage supplies at 6.75 VDC or higher will function correctly with either part.

Q: What does the ECCN and HTSUS classification indicate?

A: All three relays share identical ECCN (Export Control Classification Number) EAR99 and HTSUS (Harmonized Tariff Schedule of the United States) code 8536.41.0020 classifications. These designations indicate that the relays are subject to standard export control regulations and are classified under the same tariff category for customs purposes. This alignment ensures no additional regulatory complications when substituting these parts.

Q: Are there any contact material compatibility concerns?

A: The D3010 uses Palladium (Pd), Ruthenium (Ru), and Gold (Au) contact materials, while the Panasonic substitutes use Silver (Ag) and Gold (Au). Both contact material compositions are suitable for telecom-grade switching applications. The different material combinations reflect different manufacturing approaches but do not prevent functional substitution in standard switching circuits. Contact material selection may affect long-term reliability in specific chemical environments or high-frequency applications, but such considerations are not specified in the provided parameters.