ACV11212 Equivalent & Substitute Parts

Part Overview

The ACV11212 is an automotive SPDT relay manufactured by Panasonic Electric Works, designed for 12VDC coil operation with a 20A contact rating. This component is classified as obsolete, making equivalent substitutes necessary for ongoing system maintenance and new design implementations. The relay features non-latching operation, silver alloy cadmium-free contacts, and socketable mounting for automotive applications.

Substiute Parts

ACV11212

Panasonic Electric WorksIn Stock: 1154ACV11212 Datasheet

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CM1-R-12V

Panasonic Electric WorksIn Stock: 2726CM1-R-12V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the ACV11212 is based on the following critical parameters that must remain consistent:

• Coil voltage: 12VDC (required for direct socket compatibility)
• Contact form: SPDT (1 Form C) (functional requirement for switching logic)
• Mounting type: Socketable (physical compatibility with existing sockets)
• Termination style: Plug In (connector compatibility)
• Operating temperature range: -40°C ~ 85°C (environmental specification)
• Coil type: Non Latching (operational requirement)

The CM1-R-12V qualifies as a substitute because it maintains all critical parameters while offering enhanced electrical performance through increased contact rating (35A versus 20A) and sealed construction.

Parameter Comparison

Engineering Selection Recommendations

The CM1-R-12V serves as the primary substitute for the obsolete ACV11212. Both components are manufactured by Panasonic Electric Works and maintain identical coil voltage, contact form, mounting configuration, and operating temperature specifications.

The CM1-R-12V is classified as Active product status, ensuring ongoing availability and supply chain continuity. It carries ROHS3 compliance, meeting current regulatory requirements. The increased contact rating (35A versus 20A) provides design margin for applications originally specified at 20A, while the sealed construction offers enhanced environmental protection.

Coil current increases from 84 mA to 125 mA, and coil resistance decreases from 142 Ohms to 96 Ohms. These changes reflect the higher current capacity of the substitute. The must release voltage increases from 0.6 VDC to 1.2 VDC, and release time improves from 15 ms to 10 ms.

Frequently Asked Questions (FAQ)

Q: Can the CM1-R-12V directly replace the ACV11212 in existing sockets?

A: Yes. Both relays feature socketable mounting with plug-in termination, enabling direct physical and electrical compatibility in existing socket installations.

Q: What is the primary reason for substitution?

A: The ACV11212 is obsolete. The CM1-R-12V is an active product from the same manufacturer, ensuring long-term availability and supply chain reliability.

Q: Are there differences in electrical performance?

A: The CM1-R-12V provides higher contact current rating (35A versus 20A), faster release time (10 ms versus 15 ms), and sealed construction. Coil current and power consumption increase slightly. These differences represent performance enhancements suitable for the original 20A application.

Q: Do both relays meet the same environmental specifications?

A: Yes. Both operate across -40°C to 85°C and use identical silver alloy cadmium-free contact material.

Q: What compliance certifications apply?

A: The ACV11212 is RoHS Compliant. The CM1-R-12V is ROHS3 Compliant, meeting current regulatory standards.

Q: Is the increased coil current a concern?

A: The coil current increase from 84 mA to 125 mA reflects the higher current capacity of the substitute. Existing 12VDC power supplies rated for automotive relay operation accommodate this increase within standard design margins.