EC2-3SNJ General Purpose Relay DPDT 2A 3V

Part Overview

The EC2-3SNJ is a general purpose relay manufactured by KEMET, classified as a Double Pole Double Throw (DPDT) relay with a 2A contact rating and 3VDC coil voltage. This through-hole mounted component is designed for applications requiring switching of AC and DC loads with a compact form factor and reliable performance across industrial temperature ranges.

The EC2-3SNJ maintains Active product status with 995 pieces currently in stock. Identifying equivalent substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate varying packaging or inventory requirements while maintaining identical electrical and mechanical performance.

Substiute Parts

EC2-3SNJ

KEMETIn Stock: 1053EC2-3SNJ Datasheet

Current PartRFQ

EC2-3NU

KEMETIn Stock: 2213EC2-3NU Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EC2-3SNJ is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match Exactly):

• Coil Voltage: 3VDC
• Contact Form: DPDT (2 Form C)
• Contact Rating: 2 A
• Switching Voltage: 250VAC, 220VDC - Max
• Coil Current: 46.7 mA
• Coil Resistance: 64.3 Ohms
• Must Operate Voltage: 2.25 VDC
• Must Release Voltage: 0.3 VDC
• Operate Time: 2 ms
• Release Time: 1 ms

Mechanical Parameters (Must Match Exactly):

• Mounting Type: Through Hole
• Termination Style: PC Pin
• Contact Material: Silver Alloy, Gold Alloy
• Operating Temperature Range: -40°C ~ 85°C

Series and Manufacturer:

• Series: EC2
• Manufacturer: KEMET

The EC2-3NU qualifies as a parametric equivalent substitute because it maintains identical electrical performance specifications, mechanical mounting characteristics, and operational parameters as the EC2-3SNJ. The primary difference is packaging format (Tube versus standard packaging).

Parameter Comparison

Engineering Selection Recommendations

Both the EC2-3SNJ and EC2-3NU are Active status products manufactured by KEMET with full REACH compliance status (REACH Unaffected). Selection between these parts should be based on the following criteria:

EC2-3SNJ Selection Criteria:

• Standard packaging requirement
• Current inventory availability: 995 pieces in stock
• Applications with standard component handling and storage procedures

EC2-3NU Selection Criteria:

• Tube packaging requirement for automated assembly or high-volume production environments
• Higher inventory availability: 2200 pieces in stock
• Applications requiring standardized packaging for supply chain management
• RoHS3 compliance requirement (explicitly stated for EC2-3NU)

Both parts maintain identical electrical performance, mechanical compatibility, and environmental operating specifications. The choice between EC2-3SNJ and EC2-3NU is determined by packaging format and supply chain requirements rather than functional performance differences.

Frequently Asked Questions (FAQ)

Q: Can EC2-3NU be used as a direct replacement for EC2-3SNJ in existing circuit designs?

A: Yes. The EC2-3NU is a parametric equivalent substitute with identical electrical specifications, coil voltage (3VDC), contact rating (2A), switching voltage (250VAC/220VDC), coil current (46.7mA), and mechanical mounting characteristics (through-hole, PC pin termination). No circuit modifications are required.

Q: What is the primary difference between EC2-3SNJ and EC2-3NU?

A: The primary difference is packaging format. EC2-3SNJ uses standard packaging, while EC2-3NU is supplied in Tube packaging. All electrical and mechanical parameters are identical.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both EC2-3SNJ and EC2-3NU operate across the identical temperature range of -40°C to 85°C with the same contact material composition (Silver Alloy, Gold Alloy).

Q: What is the coil resistance specification for these relays?

A: Both parts have a coil resistance of 64.3 Ohms at 3VDC, with a coil current of 46.7 mA and must-operate voltage of 2.25 VDC.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both EC2-3SNJ and EC2-3NU maintain Active product status and REACH Unaffected compliance. The EC2-3NU additionally carries RoHS3 compliance certification.

Q: What is the switching speed performance of these relays?

A: Both parts have an operate time of 2 milliseconds and a release time of 1 millisecond, providing identical switching performance characteristics.

Q: Can these relays switch both AC and DC loads?

A: Yes. Both parts are rated for switching 250VAC and 220VDC maximum, with a 2A contact rating suitable for general purpose AC and DC switching applications.

Q: Which part should be selected for high-volume automated assembly?

A: The EC2-3NU in Tube packaging is optimized for automated assembly environments and offers higher inventory availability (2200 pieces) compared to EC2-3SNJ (995 pieces).