AEV31012 Equivalent & Substitute Parts

Part Overview

The AEV31012 is a non-latching automotive relay manufactured by Panasonic Electric Works, designed for single-pole single-throw (SPST) switching applications at 12VDC. This relay features a 10A contact rating and is configured for through-hole mounting with PC pin termination. The product is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent and substitute parts is necessary to support existing applications, ensure supply chain continuity, and evaluate performance-compatible alternatives for system upgrades.

Substiute Parts

AEV31012

Panasonic Electric WorksIn Stock: 1164AEV31012 Datasheet

Current PartRFQ

AECN11012

Panasonic Electric WorksIn Stock: 1229AECN11012 Datasheet

MFR RecommendedRFQ

AEV52012

Panasonic Electric WorksIn Stock: 2013AEV52012 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AEV31012 is determined by the following core parameters:

• Coil Voltage: Must be 12VDC to maintain circuit compatibility
• Contact Form: Must be SPST-NO (1 Form A) to preserve switching topology
• Coil Type: Must be non-latching to match operational behavior
• Switching Voltage: Must support 400VDC nominal operation
• Operating Temperature Range: Must encompass or exceed -40°C to 80°C

The two substitute parts identified—AECN11012 and AEV52012—satisfy these core electrical requirements. However, they differ in contact rating, mounting configuration, and termination style, which may affect physical integration and current-handling capacity in the target application.

Parameter Comparison

Engineering Selection Recommendations

AECN11012 is an active product with improved operating characteristics, including lower must-operate voltage (6.8VDC vs. 9VDC) and lower must-release voltage (0.5VDC vs. 1VDC). It provides higher contact rating (15A vs. 10A) and extended operating temperature range (-40°C to 85°C). However, it uses socketable mounting and plug-in termination, requiring mechanical redesign if direct through-hole PC pin mounting is required.

AEV52012 remains within the same AEV series as the main part and maintains identical mounting temperature range and must-operate voltage specifications. It provides significantly higher contact rating (20A) and is ROHS3 compliant. The chassis mount configuration and quick-connect termination require mechanical integration changes and higher coil power consumption (3.9W vs. 1.24W).

Selection between substitutes depends on application requirements: AECN11012 for improved electrical performance and active product status; AEV52012 for higher current capacity and series continuity within the AEV platform.

Frequently Asked Questions (FAQ)

Q: Can AECN11012 directly replace AEV31012 without circuit modification?

A: Electrical substitution is valid based on coil voltage, contact form, and switching characteristics. However, mechanical integration requires adaptation due to different mounting type (socketable vs. through-hole) and termination style (plug-in vs. PC pin).

Q: What is the primary advantage of AEV52012 over AEV31012?

A: AEV52012 provides double the contact rating (20A vs. 10A), enabling use in higher-current switching applications. It maintains the same coil voltage, contact form, and operating temperature range as the original part.

Q: Why does AECN11012 have lower must-operate and must-release voltages?

A: These parameters reflect design differences in the EC-N series coil and contact mechanism. Lower thresholds indicate improved sensitivity and faster response characteristics in low-voltage conditions.

Q: Is packaging type a substitution criterion?

A: Packaging (bulk vs. tray) affects procurement and handling but does not impact electrical or mechanical compatibility. Selection should be based on application requirements and supply chain logistics.

Q: Which substitute part is recommended for new designs?

A: Both AECN11012 and AEV52012 carry active product status. AECN11012 is recommended for applications requiring minimal design changes and improved electrical performance. AEV52012 is recommended for high-current applications within the established AEV platform.