TE Connectivity Potter & Brumfield D3424 Telecom Relay DPDT Equivalent & Substitute Parts

Part Overview

The TE Connectivity Potter & Brumfield D3424 is a telecom relay with DPDT (2 Form C) contact configuration rated for 2A at 6VDC coil voltage. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing procurement and system maintenance. The D3424 operates through PC pin termination in a through-hole mounting configuration and is suitable for telecom switching applications requiring 250VAC and 220VDC maximum switching voltage.

Substiute Parts

D3424

TE Connectivity Potter & Brumfield RelaysIn Stock: 1151D3424 Datasheet

Current PartRFQ

TX2-6V

Panasonic Electric WorksIn Stock: 1282TX2-6V Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the D3424 is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

• Coil voltage: 6VDC (exact match required)
• Contact form: DPDT (2 Form C) (exact match required)
• Contact rating: 2A minimum (exact match required)
• Mounting type: Through hole (exact match required)
• Termination style: PC pin (exact match required)
• Coil type: Non-latching (exact match required)
• Relay type: Telecom (exact match required)

Secondary Compatibility Parameters:

• Must operate voltage: 4.5VDC or lower
• Must release voltage: 0.6VDC or lower
• Switching voltage capability: 220VDC minimum
• Operating temperature range: Must encompass application requirements

The Panasonic Electric Works TX2-6V satisfies all primary equivalence criteria and maintains compatibility across secondary parameters, qualifying it as a direct substitute for the obsolete D3424.

Parameter Comparison

Engineering Selection Recommendations

The Panasonic Electric Works TX2-6V is the qualified substitute for the obsolete TE Connectivity Potter & Brumfield D3424 telecom relay. Selection is based on the following engineering factors:

Product Status Alignment: The TX2-6V maintains active product status, ensuring long-term availability and supply chain continuity compared to the obsolete D3424.

Regulatory Compliance: Both components share identical REACH status (REACH Unaffected), ECCN classification (EAR99), and HTSUS code (8536.41.0020), confirming equivalent regulatory standing.

Functional Equivalence: The TX2-6V delivers identical electrical performance across all critical parameters: 6VDC coil voltage, DPDT contact configuration, 2A contact rating, 4.5VDC must-operate voltage, and 0.6VDC must-release voltage.

Performance Characteristics: The TX2-6V exhibits faster switching response (4ms operate and release time versus 5ms) and lower coil current draw (23.3mA versus 33.3mA), representing operational improvements over the original D3424.

Environmental Compatibility: The TX2-6V operating temperature range (-40°C to 85°C) covers the upper temperature boundary of the D3424 range (-55°C to 85°C). Applications requiring operation below -40°C require thermal performance verification against specific system requirements.

Packaging and Mounting: Both components utilize identical through-hole mounting and PC pin termination, enabling direct mechanical and electrical integration into existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic TX2-6V directly replace the TE Connectivity D3424 in existing circuit designs?

A: Yes. The TX2-6V satisfies all primary equivalence criteria: identical 6VDC coil voltage, DPDT contact form, 2A contact rating, through-hole mounting, and PC pin termination. Electrical and mechanical integration is direct.

Q: What are the key differences between the D3424 and TX2-6V?

A: The TX2-6V exhibits faster switching times (4ms versus 5ms), lower coil current consumption (23.3mA versus 33.3mA), and sealed construction. The D3424 supports operation to -55°C while the TX2-6V operates to -40°C minimum. The TX2-6V maintains active product status, whereas the D3424 is obsolete.

Q: Does the lower operating temperature limit of the TX2-6V (-40°C versus -55°C) affect substitution suitability?

A: Substitution suitability depends on application temperature requirements. If the system operates above -40°C, the TX2-6V is fully compatible. Applications requiring operation below -40°C must evaluate whether the TX2-6V temperature range accommodates specific thermal conditions.

Q: Are there packaging differences between the D3424 and TX2-6V?

A: The D3424 is supplied in standard packaging, while the TX2-6V is supplied in tube packaging. Both components utilize identical through-hole PC pin termination and mounting footprints, ensuring PCB compatibility.

Q: What is the significance of the TX2-6V sealed construction compared to the D3424?

A: The TX2-6V features sealed construction (fully sealed rating), providing enhanced environmental protection against moisture and contaminants. This represents an operational improvement over the D3424 for applications in humid or contaminated environments.

Q: Are the contact materials compatible between the D3424 and TX2-6V?

A: Both components utilize gold (Au) in their contact material composition. The D3424 includes palladium and ruthenium, while the TX2-6V includes silver. Both material sets are compatible for telecom relay switching applications at 2A contact rating.

Q: What regulatory certifications apply to the TX2-6V as a substitute?

A: The TX2-6V maintains identical regulatory status to the D3424: REACH Unaffected, EAR99 ECCN classification, and 8536.41.0020 HTSUS code. The TX2-6V is RoHS3 compliant, providing additional environmental compliance.

Q: Does the TX2-6V coil resistance difference (257 Ohms versus 180 Ohms) affect circuit design?

A: The coil resistance difference reflects design optimization in the TX2-6V, resulting in lower coil current (23.3mA versus 33.3mA) while maintaining identical 6VDC coil voltage and switching performance. Existing drive circuits designed for the D3424 operate the TX2-6V within specification.