AEV15112 Automotive Relay - Equivalent & Substitute Parts

Part Overview

The AEV15112 is a non-latching automotive relay manufactured by Panasonic Electric Works, designed for single-pole single-throw (SPST) switching applications at 12VDC. This component operates at 150A contact rating with a 12V coil voltage and is classified as obsolete. Due to its obsolete status, identifying functionally compatible substitute parts is essential for system redesign, maintenance, and procurement continuity in automotive applications requiring equivalent switching performance.

Substiute Parts

AEV15112

Panasonic Electric WorksIn Stock: 1181AEV15112 Datasheet

Current PartRFQ

AEV19012W

Panasonic Electric WorksIn Stock: 995AEV19012W Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AEV15112 is determined by the following critical parameters:

• Coil Voltage Compatibility: 12VDC coil voltage is mandatory for direct substitution in existing automotive circuits
• Contact Form: SPST-NO (1 Form A) configuration must be maintained for circuit topology compatibility
• Mounting Type: Chassis mount configuration ensures mechanical fit within existing enclosures
• Operating Temperature Range: Must encompass or exceed the original -40°C ~ 80°C specification
• Coil Type: Non-latching operation is required for standard automotive relay applications
• Contact Rating: Current-carrying capacity must meet or exceed the 150A requirement for the intended load

The AEV19012W qualifies as a substitute based on these parameters while offering enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The AEV19012W is a functionally compatible substitute for the obsolete AEV15112 based on the following criteria:

Electrical Compatibility: Both relays share identical coil voltage (12VDC), must-operate voltage (9VDC), contact form (SPST-NO), and mounting configuration (Chassis Mount). The AEV19012W maintains the same coil voltage specification required for existing automotive circuit integration.

Performance Enhancement: The AEV19012W provides superior electrical performance with 300A contact rating versus the original 150A, higher switching voltage capability (450VDC vs. 400VDC), and faster switching times (30ms operate, 10ms release versus 50ms and 30ms respectively).

Product Status: The AEV19012W is active in production, ensuring long-term availability and supply chain continuity compared to the obsolete AEV15112.

Compliance: The AEV19012W is RoHS Compliant, meeting modern regulatory requirements. Both parts maintain MSL 1 (Unlimited) moisture sensitivity classification.

Design Consideration: The termination style differs—the original uses screw terminals while the substitute uses stud termination. Circuit board or harness modifications are required to accommodate this change.

Frequently Asked Questions (FAQ)

Q: Can the AEV19012W directly replace the AEV15112 without circuit modifications?

A: The AEV19012W is electrically compatible for coil voltage and switching function. However, the termination style differs (stud vs. screw terminal), requiring connection modifications. Verify that your circuit design can accommodate the higher coil current (3.2A vs. 2.8A) and the different release voltage threshold (2VDC vs. 1VDC).

Q: What is the significance of the higher contact rating (300A vs. 150A) on the substitute?

A: The AEV19012W's 300A contact rating provides additional current-carrying capacity beyond the original 150A specification. This allows the substitute to handle higher load currents without derating and provides design margin for future application requirements. The original 150A load requirement remains fully supported.

Q: Does the faster switching time of the AEV19012W affect circuit timing?

A: The AEV19012W operates faster (30ms vs. 50ms) and releases faster (10ms vs. 30ms). For most automotive applications, this improvement is beneficial. However, verify that your circuit timing logic does not depend on the original slower switching characteristics.

Q: Are there packaging differences between these parts?

A: The AEV15112 packaging is not specified in the available data. The AEV19012W is supplied in Tray packaging. Confirm packaging compatibility with your assembly and storage requirements.

Q: What does the higher must-release voltage (2VDC vs. 1VDC) mean for my application?

A: The AEV19012W requires 2VDC to release compared to 1VDC for the original. This means the relay will remain energized slightly longer during power-down sequences. Verify that your circuit's voltage decay profile supports this requirement.

Q: Is the AEV19012W suitable for the same temperature range?

A: The AEV19012W supports -40°C ~ 85°C, which exceeds the original -40°C ~ 80°C range. This provides additional thermal margin for harsh automotive environments.