D3524N Equivalent & Substitute Parts

Part Overview

The D3524N is a telecom relay manufactured by TE Connectivity Potter & Brumfield Relays, classified as a DPDT (2 Form C) surface mount component with a 6VDC coil voltage and 2A contact rating. This part operates in the FU2 and AXICOM series and features gull wing termination for surface mount applications. The D3524N is currently listed as obsolete, necessitating identification of functionally equivalent substitute components for ongoing design support and procurement requirements.

Substiute Parts

D3524N

TE Connectivity Potter & Brumfield RelaysIn Stock: 877D3524N Datasheet

Current PartRFQ

TX2SS-6V

Panasonic Electric WorksIn Stock: 996TX2SS-6V Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the D3524N is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Coil voltage: 6VDC
• Contact form: DPDT (2 Form C)
• Contact rating: 2 A minimum
• Mounting type: Surface mount
• Termination style: Gull wing
• Must operate voltage: 4.5 VDC or lower
• Must release voltage: 0.6 VDC or lower
• Relay type: Telecom

The TX2SS-6V manufactured by Panasonic Electric Works satisfies all mandatory substitution criteria. Both components share identical coil voltage, contact configuration, current rating, mounting methodology, and termination style. Operating voltage thresholds align within acceptable tolerances for direct substitution in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The TX2SS-6V is a direct functional substitute for the obsolete D3524N based on electrical and mechanical parameter equivalence. Selection of the TX2SS-6V is supported by the following factors:

Product Status: The TX2SS-6V maintains active manufacturing status with Panasonic Electric Works, ensuring long-term availability and supply chain continuity compared to the obsolete D3524N.

Compliance and Certifications: The TX2SS-6V carries RoHS compliance certification, meeting current regulatory requirements for electronic component procurement. Both components share identical ECCN (EAR99) and HTSUS (8536.41.0020) classifications.

Electrical Performance: The TX2SS-6V demonstrates equivalent performance across all critical switching parameters. The reduced coil current (23.3 mA versus 33.3 mA) and faster switching times (4 ms versus 5 ms) represent operational improvements without compromising functional compatibility.

Mechanical Compatibility: Identical mounting type, termination style, and contact configuration ensure direct PCB layout compatibility without redesign requirements.

Environmental Considerations: The TX2SS-6V operates across a narrower temperature range (-40°C to 85°C) compared to the D3524N (-55°C to 85°C). Applications requiring operation below -40°C require evaluation of alternative substitutes or retention of D3524N inventory.

Frequently Asked Questions (FAQ)

Q: Can the TX2SS-6V directly replace the D3524N without PCB modifications?

A: Yes. Both components share identical coil voltage (6VDC), contact form (DPDT), current rating (2A), mounting type (surface mount), and termination style (gull wing). No PCB layout changes are required for direct substitution.

Q: What are the key differences between D3524N and TX2SS-6V?

A: The TX2SS-6V features lower coil current consumption (23.3 mA versus 33.3 mA), faster switching response (4 ms versus 5 ms), fully sealed construction, and RoHS compliance. The TX2SS-6V operates across a narrower temperature range (-40°C to 85°C versus -55°C to 85°C) and has a lower maximum AC switching voltage rating (220VDC only versus 250VAC/220VDC).

Q: Is the TX2SS-6V suitable for applications requiring operation below -40°C?

A: No. The TX2SS-6V minimum operating temperature is -40°C. Applications requiring operation at -55°C must identify alternative substitutes or maintain D3524N inventory. Consult the substitute part list for additional options.

Q: Does the TX2SS-6V meet current regulatory requirements?

A: Yes. The TX2SS-6V is RoHS compliant and carries REACH unaffected status. Both components share identical ECCN and HTSUS classifications.

Q: What is the significance of the higher coil resistance in TX2SS-6V (257 Ohms versus 180 Ohms)?

A: The higher coil resistance in the TX2SS-6V results in lower coil current draw (23.3 mA versus 33.3 mA) while maintaining identical 6VDC coil voltage and operating thresholds. This represents improved power efficiency without functional compromise.

Q: Are there packaging differences between D3524N and TX2SS-6V?

A: The D3524N packaging is not specified in available documentation. The TX2SS-6V is supplied in tube packaging. Confirm packaging requirements with procurement specifications before component selection.

Q: What is the contact material composition difference?

A: The D3524N uses Palladium (Pd), Ruthenium (Ru), and Gold (Au) contact materials. The TX2SS-6V uses Silver (Ag) and Gold (Au) contact materials. Both compositions are suitable for telecom relay applications with 2A switching capacity.