EB2-4.5NU General Purpose Relay DPDT Equivalent & Substitute Parts

Part Overview

The EB2-4.5NU is a general purpose relay manufactured by KEMET, classified as a Double Pole Double Throw (DPDT) surface mount component with a 4.5VDC coil voltage and 1A contact rating. This relay is designed for applications requiring non-latching switching functionality with dual independent circuits. The part maintains Active product status with 2300 pieces in current inventory stock.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility parameters are maintained across alternative manufacturer series designations. The UD2-4.5NU represents a parametric equivalent within the KEMET product portfolio.

Substiute Parts

EB2-4.5NU

KEMETIn Stock: 2318EB2-4.5NU Datasheet

Current PartRFQ

UD2-4.5NU

KEMETIn Stock: 8975UD2-4.5NU Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EB2-4.5NU is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Coil voltage: 4.5VDC
• Contact form: DPDT (2 Form C)
• Contact current rating: 1 A
• Switching voltage: 250VAC, 220VDC - Max
• Coil current: 31 mA
• Coil resistance: 145 Ohms
• Must operate voltage: 3.38 VDC
• Must release voltage: 0.45 VDC
• Operate time: 2 ms
• Release time: 1 ms

Mechanical Specifications:

• Mounting type: Surface Mount
• Termination style: Gull Wing
• Operating temperature range: -40°C ~ 85°C
• Contact material: Silver Alloy, Gold Alloy

Compliance & Environmental:

• RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

The UD2-4.5NU satisfies all specified parameters and qualifies as a direct parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the EB2-4.5NU and UD2-4.5NU maintain Active product status within the KEMET portfolio and carry identical compliance certifications including ROHS3 compliance and REACH unaffected status. The parts are functionally interchangeable based on all provided electrical, mechanical, and environmental specifications.

Selection between these parts may be determined by inventory availability and supply chain considerations. The UD2-4.5NU currently maintains higher inventory levels at 8911 pieces compared to 2300 pieces for the EB2-4.5NU. Both parts are packaged in tube format and employ identical surface mount gull wing termination technology.

Frequently Asked Questions (FAQ)

Q: Can the UD2-4.5NU be used as a direct replacement for the EB2-4.5NU in existing designs?

A: Yes. The UD2-4.5NU is a parametric equivalent with identical electrical specifications, mechanical configuration, and compliance certifications. No circuit modifications are required.

Q: Are there differences in coil voltage or contact rating between these parts?

A: No. Both parts feature 4.5VDC coil voltage, 1A contact rating, and 31mA coil current. Coil resistance is identical at 145 Ohms.

Q: Do both parts support the same switching voltage range?

A: Yes. Both the EB2-4.5NU and UD2-4.5NU support 250VAC and 220VDC maximum switching voltage.

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

A: Both parts operate across -40°C to 85°C, with identical must-operate and must-release voltage thresholds.

Q: Are the termination styles identical?

A: Yes. Both parts employ gull wing termination for surface mount applications.

Q: Do both parts meet RoHS and REACH compliance requirements?

A: Yes. Both the EB2-4.5NU and UD2-4.5NU are ROHS3 compliant and REACH unaffected.

Q: What is the moisture sensitivity level for these components?

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions.

Q: Are the switching times identical between these parts?

A: Yes. Both parts feature 2ms operate time and 1ms release time.