EC2-5ND General Purpose Relay DPDT 2A 5V Equivalent & Substitute Parts

Part Overview

The EC2-5ND is a general purpose relay manufactured by KEMET, featuring a DPDT (2 Form C) contact configuration with 2A contact rating and 5VDC coil voltage. This component is classified as obsolete product status. Due to its obsolete designation, identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for ongoing production, maintenance, and repair applications. The EC2-5ND operates within the -40°C to 85°C temperature range and is suitable for through-hole mounting applications.

Substiute Parts

EC2-5ND

KEMETIn Stock: 2194EC2-5ND Datasheet

Current PartRFQ

EC2-5NU

KEMETIn Stock: 19634EC2-5NU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EC2-5ND is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Coil Voltage: 5VDC
• Contact Form: DPDT (2 Form C)
• Contact Rating (Current): 2 A
• Switching Voltage: 250VAC, 220VDC - Max
• Mounting Type: Through Hole
• Termination Style: PC Pin
• Operating Temperature Range: -40°C ~ 85°C
• Contact Material: Silver Alloy, Gold Alloy
• Coil Type: Non Latching
• RoHS Status: ROHS3 Compliant

The EC2-5NU qualifies as a direct substitute based on complete alignment with all mandatory parameters. Variations in coil current (40 mA vs. 28 mA) and coil resistance (125 Ohms vs. 178 Ohms) do not disqualify substitution, as these represent design optimization within the same functional specification. The EC2-5NU maintains active product status, providing superior availability compared to the obsolete EC2-5ND.

Parameter Comparison

Engineering Selection Recommendations

The EC2-5NU is the direct substitute for the obsolete EC2-5ND. Selection of the EC2-5NU is supported by the following factors:

Product Status: The EC2-5NU maintains active product status with 19,531 pieces in stock, compared to the EC2-5ND obsolete status with limited remaining inventory of 2,100 pieces. This availability differential ensures long-term component sourcing capability.

Compliance Alignment: Both parts maintain identical RoHS3 compliance, REACH unaffected status, and EAR99 ECCN classification, ensuring regulatory equivalence for applications subject to environmental and export control requirements.

Functional Equivalence: The EC2-5NU delivers identical electrical performance across all critical operating parameters: coil voltage, contact configuration, current rating, switching voltage, temperature range, and timing characteristics. The reduced coil current (28 mA vs. 40 mA) in the EC2-5NU represents improved power efficiency without functional compromise.

Packaging Consideration: The EC2-5NU is supplied in tube packaging, whereas the EC2-5ND packaging specification is not provided. Tube packaging is standard for through-hole relay components and presents no compatibility issues for PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the EC2-5NU directly replace the EC2-5ND in existing circuit designs?

A: Yes. The EC2-5NU provides complete functional equivalence across all critical electrical parameters including coil voltage, contact configuration, current rating, switching voltage, and operating temperature range. No circuit modifications are required for substitution.

Q: What is the significance of the coil current difference between EC2-5ND (40 mA) and EC2-5NU (28 mA)?

A: The reduced coil current in the EC2-5NU reflects design optimization and improved power efficiency. Both parts meet identical must-operate and must-release voltage thresholds (3.75 VDC and 0.5 VDC respectively), confirming functional compatibility. The lower current requirement reduces power dissipation in the coil circuit.

Q: Are there any temperature or environmental limitations that would prevent substitution?

A: No. Both parts operate across the identical temperature range of -40°C to 85°C and maintain equivalent contact material composition (Silver Alloy, Gold Alloy). Environmental performance is equivalent.

Q: Does the tube packaging of the EC2-5NU affect compatibility with existing assembly processes?

A: No. Tube packaging is standard for through-hole relay components and is compatible with conventional PCB assembly equipment and manual placement processes. Packaging format does not affect electrical or mechanical performance.

Q: Are both parts compliant with current regulatory requirements?

A: Yes. Both the EC2-5ND and EC2-5NU maintain ROHS3 compliance and REACH unaffected status, confirming equivalence for applications subject to environmental regulations. Both carry EAR99 ECCN classification for export control purposes.

Q: Why is the EC2-5ND classified as obsolete?

A: The EC2-5ND has reached end-of-life status within KEMET's product portfolio. The EC2-5NU represents the active continuation of this relay series with improved specifications and ongoing manufacturing support.