UD2-12NU General Purpose Relay DPDT 1A 12V Equivalent & Substitute Parts

Part Overview

The UD2-12NU is a general purpose relay manufactured by KEMET, featuring a DPDT (2 Form C) contact configuration with 1A contact rating and 12VDC coil voltage. This surface mount relay is designed for non-latching switching applications with operating temperatures from -40°C to 85°C. The part is currently active in production status with ROHS3 compliance and REACH unaffected classification. Substitute parts are identified when component availability requires alternative sourcing while maintaining identical electrical and mechanical specifications.

Substiute Parts

UD2-12NU

KEMETIn Stock: 2593UD2-12NU Datasheet

Current PartRFQ

EB2-12NU

KEMETIn Stock: 2317EB2-12NU Datasheet

Parametric EquivalentRFQ

UB2-12NU

KEMETIn Stock: 12008UB2-12NU Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UD2-12NU are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:

• Coil voltage: 12VDC
• Contact form: DPDT (2 Form C)
• Contact rating: 1 A
• Switching voltage: 250VAC, 220VDC - Max
• Coil current: 11.7 mA
• Coil type: Non Latching
• Mounting type: Surface Mount
• Termination style: Gull Wing
• Operating temperature range: -40°C ~ 85°C
• Contact material: Silver Alloy, Gold Alloy
• Coil resistance: 1.03 kOhms
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)

The substitute parts EB2-12NU and UB2-12NU meet all these criteria and are therefore direct parametric equivalents. The primary difference between these parts is the series designation (EB2 and UB2 respectively) and inventory availability.

Parameter Comparison

Engineering Selection Recommendations

All three parts—UD2-12NU, EB2-12NU, and UB2-12NU—are active production status components manufactured by KEMET with identical electrical and mechanical specifications. Selection between these parts should be based on the following factors:

Compliance and Certification: All parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications.

Inventory Availability: The UB2-12NU series offers the highest inventory level at 11,953 pieces, followed by UD2-12NU at 2,500 pieces, and EB2-12NU at 2,220 pieces. Component selection may be driven by supply chain requirements and lead time considerations.

Packaging and Delivery: All parts are supplied in tube packaging format, suitable for automated assembly processes and standard component handling procedures.

Functional Equivalence: The EB2-12NU and UB2-12NU are direct parametric equivalents to the UD2-12NU and can be used interchangeably in applications requiring a 12VDC DPDT general purpose relay with 1A contact rating and surface mount gull wing termination.

Frequently Asked Questions (FAQ)

Q: Can EB2-12NU and UB2-12NU be used as direct replacements for UD2-12NU?

A: Yes. The EB2-12NU and UB2-12NU are parametric equivalents with identical coil voltage, contact form, contact rating, switching voltage, coil current, operating temperature range, contact material, and all other critical electrical and mechanical specifications. They are suitable for direct substitution in applications designed for the UD2-12NU.

Q: What is the difference between the UD2, EB2, and UB2 series?

A: The series designation indicates the product line within KEMET's relay portfolio. All three series share identical electrical and mechanical parameters for the 12V DPDT 1A configuration. The series difference does not affect functional performance or compatibility.

Q: Are there any differences in contact material between these parts?

A: No. All three parts use Silver Alloy and Gold Alloy contact materials, providing identical switching characteristics and reliability performance.

Q: What is the moisture sensitivity level, and does it affect substitution?

A: All three parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. This parameter is identical across all substitute parts and does not affect substitution decisions.

Q: Can these relays be used in applications requiring 250VAC switching?

A: Yes. All three parts are rated for 250VAC maximum switching voltage, making them suitable for AC switching applications within this voltage specification.

Q: What is the coil resistance, and is it the same across all parts?

A: The coil resistance is 1.03 kOhms for all three parts. This identical specification ensures consistent coil current draw of 11.7 mA at 12VDC across all substitute options.

Q: Are these parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for industrial applications.

Q: What is the operating temperature range?

A: All three parts operate from -40°C to 85°C, providing identical thermal performance across the full substitute range.