Panasonic CB1-D-M-24V Automotive Relay Equivalent & Substitute Parts

Part Overview

The Panasonic CB1-D-M-24V is a single-pole double-throw (SPDT) automotive relay rated for 20A at 24VDC. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The CB series relay is designed for chassis mount applications with quick connect termination, suitable for automotive electrical control circuits requiring sealed, fully enclosed construction.

Substiute Parts

CB1-D-M-24V

Panasonic Electric WorksIn Stock: 1252CB1-D-M-24V Datasheet

Current PartRFQ

CB1-M-24V

Panasonic Electric WorksIn Stock: 2036CB1-M-24V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CB1-D-M-24V is determined by strict equivalence across the following critical parameters:

• Coil voltage specification (24VDC)
• Coil current draw (75 mA)
• Contact form configuration (SPDT)
• Contact current rating (20 A)
• Switching voltage capability (28VDC nominal)
• Voltage thresholds (Must Operate: 14 VDC; Must Release: 2.4 VDC)
• Operate time (15 ms)
• Mounting configuration (Chassis Mount)
• Termination interface (Quick Connect - 0.250")
• Temperature operating range (-40°C ~ 85°C)
• Contact material composition (Silver Alloy, Cadmium Free)
• Enclosure type (Sealed - Fully)

The CB1-M-24V meets all specified parameters and is identified as a direct substitute for the obsolete CB1-D-M-24V model.

Parameter Comparison

Engineering Selection Recommendations

The CB1-M-24V is the direct substitute for the obsolete CB1-D-M-24V. Both components are manufactured by Panasonic Electric Works and share identical electrical and mechanical specifications across all critical parameters.

The CB1-M-24V offers the advantage of active product status, ensuring continued availability and supply chain reliability. The substitute part carries ROHS3 compliance certification, meeting current environmental and regulatory requirements. Both parts maintain REACH Unaffected status and identical export classification (EAR99).

The primary distinction between the two models is the inclusion of an integrated diode in the CB1-D-M-24V variant. When selecting the CB1-M-24V as a replacement, verify that the absence of the integrated diode does not impact the circuit design. If diode protection is required, external diode implementation may be necessary.

Frequently Asked Questions (FAQ)

Q: Can the CB1-M-24V directly replace the CB1-D-M-24V in existing applications?

A: Yes, the CB1-M-24V is electrically and mechanically equivalent to the CB1-D-M-24V across all specified parameters. Both components feature identical coil voltage (24VDC), contact ratings (20A SPDT), switching characteristics, and mounting interfaces. The substitute part is suitable for direct replacement in chassis mount applications with quick connect termination.

Q: What is the difference between the CB1-D-M-24V and CB1-M-24V?

A: The primary difference is the integrated diode feature in the CB1-D-M-24V. The CB1-M-24V does not include this integrated diode. All other electrical and mechanical parameters are identical. Additionally, the CB1-M-24V carries active product status and ROHS3 compliance, whereas the CB1-D-M-24V is classified as obsolete.

Q: Are there packaging differences between these two relay models?

A: The CB1-D-M-24V is supplied in standard packaging, while the CB1-M-24V is available in bulk packaging. Both maintain identical moisture sensitivity level (MSL 1 - Unlimited) and environmental specifications. Packaging format does not affect electrical or mechanical compatibility.

Q: What are the critical voltage thresholds for these relays?

A: Both relays operate at 24VDC coil voltage with a coil current of 75 mA. The must operate voltage is 14 VDC, and the must release voltage is 2.4 VDC. Switching voltage is rated at 28VDC nominal. These parameters are identical between the CB1-D-M-24V and CB1-M-24V.

Q: Is the CB1-M-24V compliant with current environmental regulations?

A: Yes, the CB1-M-24V is ROHS3 compliant and maintains REACH Unaffected status. Both the main part and substitute share identical ECCN (EAR99) and HTSUS (8536.41.0050) classifications, ensuring regulatory compliance for automotive applications.