EE2-24ND General Purpose Relay DPDT 2A 24VDC Equivalent & Substitute Parts

Part Overview

The EE2-24ND is a general purpose relay manufactured by KEMET, configured as a DPDT (Double Pole Double Throw, 2 Form C) surface mount component with a 24VDC coil voltage and 2A contact rating. This relay is classified as obsolete product status, which necessitates identification of active equivalent parts for ongoing design support and procurement continuity. The EE2-24ND operates across an industrial temperature range of -40°C to 85°C and is RoHS3 compliant with MSL 1 rating, indicating unlimited moisture sensitivity tolerance.

Substiute Parts

EE2-24ND

KEMETIn Stock: 922EE2-24ND Datasheet

Current PartRFQ

EE2-24NU

KEMETIn Stock: 14253EE2-24NU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete EE2-24ND with the active EE2-24NU is based on strict equivalence across all critical electrical and mechanical parameters. The substitution logic is determined by the following key parameters:

Electrical Equivalence Criteria:

• Coil voltage: 24VDC (identical)
• Contact form: DPDT (2 Form C) (identical)
• Contact rating: 2 A (identical)
• Switching voltage: 250VAC, 220VDC - Max (identical)
• Must operate voltage: 18 VDC (identical)
• Must release voltage: 2.4 VDC (identical)
• Operate time: 2 ms (identical)
• Release time: 1 ms (identical)
• Operating temperature range: -40°C ~ 85°C (identical)
• Contact material: Silver Alloy, Gold Alloy (identical)

Mechanical Equivalence Criteria:

• Mounting type: Surface Mount (identical)
• Termination style: Gull Wing (identical)
• Series: EE2 (identical)

Compliance Equivalence Criteria:

• RoHS Status: ROHS3 Compliant (identical)
• MSL Rating: 1 (Unlimited) (identical)
• REACH Status: REACH Unaffected (identical)

The EE2-24NU maintains full functional and physical compatibility with the EE2-24ND while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The EE2-24NU is the direct active equivalent for the obsolete EE2-24ND. Selection of the EE2-24NU is based on the following engineering factors:

Product Status: The EE2-24ND carries obsolete status, indicating discontinued manufacturing and limited procurement availability. The EE2-24NU maintains active product status with confirmed inventory of 14,175 pieces, ensuring supply chain continuity.

Compliance Certification: Both parts maintain identical RoHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications.

Electrical Performance: The EE2-24NU delivers equivalent electrical performance across all specified parameters, including coil voltage, contact rating, switching voltage, and timing characteristics. The reduction in coil current from 9.6 mA to 8.3 mA represents improved power efficiency without compromising functional performance.

Physical Compatibility: Identical surface mount configuration with gull wing termination ensures direct PCB layout compatibility without design modification.

Thermal Performance: Both parts operate across the identical -40°C to 85°C temperature range, maintaining performance across industrial environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can the EE2-24NU be used as a direct replacement for the EE2-24ND without PCB modification?

A: Yes. The EE2-24NU is physically and electrically equivalent to the EE2-24ND. Both components feature identical surface mount configuration with gull wing termination, enabling direct substitution without PCB layout changes.

Q: What is the difference in coil current between the EE2-24ND and EE2-24NU?

A: The EE2-24ND operates at 9.6 mA coil current, while the EE2-24NU operates at 8.3 mA. This 13.5% reduction in coil current reflects improved design efficiency. Both parts maintain identical coil voltage (24VDC) and switching performance, making the EE2-24NU suitable for applications where lower power consumption is beneficial.

Q: Are both parts compliant with RoHS and REACH regulations?

A: Yes. Both the EE2-24ND and EE2-24NU are RoHS3 compliant and REACH unaffected, meeting regulatory requirements for industrial and commercial applications.

Q: What is the MSL rating for these relays?

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity limitations during storage or handling. Standard component storage practices apply.

Q: Why is the EE2-24ND listed as obsolete?

A: The EE2-24ND has been discontinued by KEMET. The EE2-24NU represents the active equivalent product, ensuring continued availability and supply chain support for new designs and legacy system maintenance.

Q: Are the contact materials identical between both parts?

A: Yes. Both the EE2-24ND and EE2-24NU utilize Silver Alloy and Gold Alloy contact materials, ensuring equivalent electrical performance and contact reliability.

Q: What is the operating temperature range for these relays?

A: Both parts operate across -40°C to 85°C, supporting industrial temperature environments without performance degradation.