D3504N Equivalent & Substitute Parts

Part Overview

The D3504N is a telecom relay manufactured by TE Connectivity Potter & Brumfield Relays, configured as a DPDT (2 Form C) surface mount component with 2A contact rating and 6VDC coil voltage. This part is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements. The D3504N operates across a temperature range of -55°C to 85°C and features palladium, ruthenium, and gold contact materials suitable for telecom switching applications.

Substiute Parts

D3504N

TE Connectivity Potter & Brumfield RelaysIn Stock: 1031D3504N Datasheet

Current PartRFQ

TX2SS-6V

Panasonic Electric WorksIn Stock: 996TX2SS-6V Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the D3504N is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Coil Voltage: 6VDC
• Contact Form: DPDT (2 Form C)
• Contact Rating (Current): 2 A
• Mounting Type: Surface Mount
• Termination Style: Gull Wing
• Coil Type: Non Latching
• Must Operate Voltage: 4.5 VDC
• Must Release Voltage: 0.6 VDC
• Relay Type: Telecom

The TX2SS-6V manufactured by Panasonic Electric Works satisfies all mandatory matching parameters and qualifies as a direct substitute. This part maintains functional and electrical equivalence while offering the advantage of active product status and RoHS compliance.

Parameter Comparison

Engineering Selection Recommendations

The TX2SS-6V is the qualified substitute for the obsolete D3504N. Selection of this substitute is based on the following engineering factors:

Product Status: The D3504N is classified as obsolete, making the active TX2SS-6V the appropriate choice for new designs and production continuity.

Functional Equivalence: Both parts maintain identical coil voltage, contact form, contact rating, mounting type, and termination style, ensuring direct functional replacement in circuit applications.

Compliance: The TX2SS-6V carries RoHS compliance certification, meeting current regulatory requirements for electronic components in many jurisdictions. Both parts share identical ECCN and HTSUS classifications.

Performance Characteristics: The TX2SS-6V demonstrates faster switching response times (4 ms operate and release versus 5 ms) and lower coil current consumption (23.3 mA versus 50 mA), providing improved power efficiency. The TX2SS-6V features fully sealed construction, enhancing environmental protection compared to the D3504N.

Operating Temperature Consideration: The D3504N operates across -55°C to 85°C, while the TX2SS-6V operates across -40°C to 85°C. Applications requiring operation below -40°C require evaluation of alternative solutions.

Contact Material Difference: The D3504N employs palladium and ruthenium contact materials, while the TX2SS-6V uses silver and gold. Both material sets are suitable for telecom switching applications at the specified 2A rating and 220VDC maximum switching voltage.

Frequently Asked Questions (FAQ)

Q: Can the TX2SS-6V directly replace the D3504N in existing designs?

A: Yes. The TX2SS-6V satisfies all mandatory electrical and mechanical parameters for direct substitution. Both parts feature identical 6VDC coil voltage, DPDT contact form, 2A contact rating, surface mount configuration, and gull wing termination. Functional compatibility is established.

Q: What are the differences in switching speed between these parts?

A: The TX2SS-6V operates and releases in 4 milliseconds, compared to 5 milliseconds for the D3504N. This 1 millisecond improvement in switching response may be beneficial in time-sensitive telecom applications but does not prevent substitution in standard applications.

Q: Does the lower coil current of the TX2SS-6V affect circuit design?

A: The TX2SS-6V draws 23.3 mA compared to the D3504N's 50 mA. This reduced coil current results in lower power consumption and reduced heat generation. Existing driver circuits designed for 50 mA operation will function correctly with the TX2SS-6V, as the lower current requirement is within the capability of standard relay driver circuits.

Q: Are there temperature range limitations with the TX2SS-6V?

A: The TX2SS-6V operates from -40°C to 85°C, compared to the D3504N's -55°C to 85°C range. Applications requiring operation below -40°C must identify alternative components, as the TX2SS-6V does not meet this extended low-temperature requirement.

Q: What is the significance of the fully sealed construction on the TX2SS-6V?

A: The TX2SS-6V features fully sealed construction, providing enhanced protection against moisture, dust, and environmental contaminants. This sealing improves reliability in harsh or humid environments compared to the D3504N, for which seal rating is not specified.

Q: Are the contact materials interchangeable between these parts?

A: Both contact material sets are suitable for telecom switching applications at 2A and 220VDC maximum switching voltage. The D3504N uses palladium and ruthenium, while the TX2SS-6V uses silver and gold. Material selection does not prevent substitution for standard telecom relay applications.

Q: What is the packaging difference between these parts?

A: The D3504N packaging is specified as dash (not detailed), while the TX2SS-6V is supplied in tube packaging. Tube packaging is standard for surface mount relay distribution and does not affect component functionality.

Q: Are both parts classified under the same export control category?

A: Yes. Both the D3504N and TX2SS-6V carry ECCN classification EAR99 and HTSUS code 8536.41.0020, indicating identical export control treatment.