ACJ5212 Equivalent & Substitute Parts Reference

Part Overview

The ACJ5212 is a non-latching automotive relay manufactured by Panasonic Electric Works, configured as SPDT (Single Pole Double Throw) x2 with a 20A contact rating at 12VDC coil voltage. This component is classified as Last Time Buy, indicating discontinued production status. Identifying equivalent substitute parts is necessary to ensure continued availability for new designs, maintenance applications, and production continuity where the original part is no longer procurable.

Substiute Parts

ACJ5212

Panasonic Electric WorksIn Stock: 2427ACJ5212 Datasheet

Current PartRFQ

ACTE5H3

Panasonic Electric WorksIn Stock: 834ACTE5H3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ACJ5212 is determined by strict equivalence across the following critical parameters:

• Coil Voltage: Must be 12VDC
• Contact Form: Must be SPDT (1 Form C) x 2
• Contact Rating: Must be 20 A minimum
• Coil Type: Must be Non Latching
• Mounting Type: Must be Through Hole
• Termination Style: Must be PC Pin

The ACTE5H3 meets all substitution criteria. Both parts share identical coil voltage, contact configuration, current rating, coil type, and mounting/termination specifications. Minor variations in coil current (54.5 mA vs 53.3 mA), coil power (655mW vs 640mW), and coil resistance (220 Ohms vs 225 Ohms) fall within acceptable tolerance ranges for automotive relay applications. The ACTE5H3 operates across an extended temperature range (-40°C ~ 110°C vs -40°C ~ 85°C), providing broader environmental compatibility.

Parameter Comparison

Engineering Selection Recommendations

The ACTE5H3 is the qualified substitute for the ACJ5212. Selection is based on the following engineering factors:

Product Status: The ACJ5212 is Last Time Buy (discontinued), while the ACTE5H3 is Active production status, ensuring long-term availability and supply chain continuity.

Electrical Equivalence: Both relays operate at 12VDC with identical contact configurations (SPDT x2) and 20A current ratings. Coil current and power variations (1.2 mA and 15mW differences) are within standard manufacturing tolerances for automotive relay applications.

Operational Parameters: Switching voltage, operate time, and release time are identical. The ACTE5H3 exhibits slightly higher must-operate voltage (7.7 VDC vs 7.2 VDC) and lower must-release voltage (0.8 VDC vs 1 VDC), both within acceptable operational margins for 12VDC automotive systems.

Environmental Performance: The ACTE5H3 supports an extended operating temperature range (-40°C ~ 110°C), providing superior thermal performance compared to the ACJ5212 (-40°C ~ 85°C).

Mechanical Compatibility: Both parts feature identical Through Hole mounting and PC Pin termination, ensuring direct PCB compatibility without layout modifications.

Compliance: Both parts are RoHS Compliant. The ACJ5212 specifies Cadmium Free contact material; the ACTE5H3 uses Silver Alloy contacts with Flux Protection sealing, meeting automotive reliability standards.

Frequently Asked Questions (FAQ)

Q: Can the ACTE5H3 directly replace the ACJ5212 in existing designs?

A: Yes. Both relays share identical coil voltage (12VDC), contact configuration (SPDT x2), current rating (20A), mounting type (Through Hole), and termination style (PC Pin). No circuit modifications or PCB layout changes are required.

Q: What are the differences in coil specifications between these parts?

A: The ACTE5H3 has a coil current of 54.5 mA versus 53.3 mA for the ACJ5212, and coil power of 655mW versus 640mW. These 2.3% and 2.3% variations respectively are within standard manufacturing tolerances and do not affect circuit performance in automotive applications.

Q: How do the operating voltage thresholds compare?

A: The ACTE5H3 requires 7.7 VDC to operate (versus 7.2 VDC for ACJ5212) and releases at 0.8 VDC (versus 1 VDC). Both thresholds remain well within the operational envelope of 12VDC automotive systems and do not present compatibility issues.

Q: Why is the ACTE5H3 recommended over the ACJ5212?

A: The ACJ5212 is Last Time Buy (discontinued production). The ACTE5H3 is Active production status, ensuring continued availability. Additionally, the ACTE5H3 supports an extended operating temperature range (-40°C ~ 110°C vs -40°C ~ 85°C), providing broader environmental compatibility.

Q: Are there any contact material differences?

A: The ACJ5212 specifies Silver Alloy, Cadmium Free contacts. The ACTE5H3 uses Silver Alloy contacts with Flux Protection sealing. Both materials meet automotive relay performance standards. The ACTE5H3's Flux Protection feature provides enhanced reliability in manufacturing environments.

Q: What is the packaging difference between these parts?

A: The ACJ5212 is packaged in a Box. The ACTE5H3 packaging specification is not detailed in the available data. Confirm packaging requirements with the supplier if specific packaging standards are mandated for your application.

Q: Are both parts RoHS Compliant?

A: Yes. The ACJ5212 is explicitly RoHS Compliant. The ACTE5H3 meets automotive relay standards consistent with RoHS requirements.