AEV19012 Equivalent & Substitute Parts

Part Overview

The AEV19012 is a non-latching automotive relay manufactured by Panasonic Electric Works, designed for high-current switching applications at 12VDC. This SPST-NO (1 Form A) relay is rated for 300A contact current with a 450VDC nominal switching voltage. The part is classified as "Not For New Designs," indicating it has been superseded in the product lifecycle. Finding equivalent or substitute parts is necessary for applications requiring continued support, inventory replenishment, or design alternatives that maintain functional compatibility within specified electrical and mechanical parameters.

Substiute Parts

AEV19012

Panasonic Electric WorksIn Stock: 2188AEV19012 Datasheet

Current PartRFQ

AEVA1251

Panasonic Electric WorksIn Stock: 1107AEVA1251 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The AEVA1251 is identified as a manufacturer-recommended substitute for the AEV19012. Substitution eligibility is determined by the following critical parameters:

• Coil voltage compatibility: Both parts operate at 12VDC
• Contact form: Both are SPST-NO (1 Form A) configuration
• Operating temperature range: Both support -40°C ~ 85°C
• Mounting type: Both are chassis mount
• Regulatory compliance: Both are ROHS3 compliant
• Coil type: Both are non-latching

The AEVA1251 represents a design evolution within the Panasonic Electric Works relay portfolio, offering improved specifications in coil efficiency and switching performance while maintaining core functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The AEVA1251 is the manufacturer-recommended substitute for the AEV19012. Both parts maintain ROHS3 compliance and identical operating temperature specifications. The AEVA1251 carries Active product status, ensuring continued availability and support, whereas the AEV19012 is designated "Not For New Designs."

Key differences in electrical performance include:

• Contact current rating: AEV19012 is rated for 300A; AEVA1251 is rated for 250A
• Switching voltage: AEVA1251 supports 500VDC nominal versus 450VDC for AEV19012
• Coil current: AEVA1251 requires 500mA versus 3.2A for AEV19012, resulting in lower power consumption
• Termination: AEV19012 uses stud termination; AEVA1251 uses screw terminal

Selection between these parts depends on application requirements for contact current capacity and termination compatibility. The AEVA1251 is suitable for applications where the 250A contact rating is sufficient and screw terminal connection is acceptable.

Frequently Asked Questions (FAQ)

Q: Can the AEVA1251 directly replace the AEV19012 in all applications?

A: Substitution is valid when the application contact current requirement does not exceed 250A and screw terminal termination is compatible with the circuit design. The AEVA1251 provides higher switching voltage capability (500VDC vs. 450VDC) and lower coil current draw.

Q: What is the impact of different termination styles?

A: The AEV19012 uses stud termination while the AEVA1251 uses screw terminal. Termination style affects mechanical mounting and electrical connection methods. Circuit board or harness design must accommodate the specific termination type.

Q: Are there differences in switching speed between these parts?

A: Yes. The AEV19012 operates in 30ms and releases in 10ms. The AEVA1251 operates in 50ms and releases in 30ms. Applications with strict timing requirements must account for these differences.

Q: Do both parts meet the same regulatory requirements?

A: Both parts are ROHS3 compliant with MSL rating of 1 (Unlimited). Both support the same operating temperature range of -40°C to 85°C.

Q: Why is the AEV19012 marked "Not For New Designs"?

A: This designation indicates the part has been superseded in the manufacturer's product lifecycle. The AEVA1251 represents the current active alternative within the Panasonic Electric Works relay portfolio.