CB1F-D-M-12V Equivalent & Substitute Parts

Part Overview

The CB1F-D-M-12V is a Panasonic Electric Works automotive SPDT relay rated for 40A at 12VDC. This non-latching relay features a sealed design with flux protection and quick-connect termination. The product is currently obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and redesign applications where continued component availability is required.

Substiute Parts

CB1F-D-M-12V

Panasonic Electric WorksIn Stock: 1120CB1F-D-M-12V Datasheet

Current PartRFQ

V23134A1052C643

TE Connectivity Potter & Brumfield RelaysIn Stock: 1092V23134A1052C643 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The V23134A1052C643 qualifies as a functional substitute for the CB1F-D-M-12V based on the following critical parameters:

• Contact Configuration: Both parts feature SPDT (1 Form C) contact form, enabling identical circuit switching topology
• Current Rating: Both rated for 40A continuous contact current, supporting equivalent load capacity
• Coil Voltage: Both operate at 12VDC nominal, ensuring direct electrical compatibility
• Coil Type: Both are non-latching relays, maintaining identical operational behavior
• Mounting and Termination: Both use chassis mount with 0.250" (6.3mm) quick-connect termination, allowing direct mechanical substitution
• Contact Material: Both employ silver-based contact materials suitable for automotive applications

The V23134A1052C643 is currently in active production status, providing supply continuity for the obsolete CB1F-D-M-12V.

Parameter Comparison

Engineering Selection Recommendations

The V23134A1052C643 is the direct functional equivalent for CB1F-D-M-12V replacement applications. Selection is based on:

• Product Availability: The V23134A1052C643 maintains active production status, ensuring supply continuity for the obsolete CB1F-D-M-12V
• Regulatory Compliance: Both parts carry identical REACH and ECCN classifications, maintaining compliance posture across supply chain transitions
• Electrical Compatibility: Matching contact form, current rating, and coil voltage specifications ensure direct functional substitution without circuit redesign
• Mechanical Compatibility: Identical mounting type and termination style enable direct physical replacement in existing assemblies
• Temperature Performance: The V23134A1052C643 extends the upper operating temperature limit to 125°C, providing enhanced thermal margin in automotive environments

Frequently Asked Questions (FAQ)

Q: Can the V23134A1052C643 directly replace the CB1F-D-M-12V in existing applications?

A: Yes. Both relays share identical contact form (SPDT), current rating (40A), coil voltage (12VDC), mounting type (chassis mount), and termination style (0.250" quick-connect). Direct substitution is supported without circuit modification.

Q: What are the key differences between these two relays?

A: The V23134A1052C643 exhibits lower coil current (133 mA vs. 117 mA), faster operate time (7 ms vs. 15 ms), extended operating temperature range (-40°C to 125°C vs. -40°C to 85°C), and slightly higher coil power (1.6W vs. 1.4W). These differences do not affect functional compatibility.

Q: Are there packaging differences between the CB1F-D-M-12V and V23134A1052C643?

A: The CB1F-D-M-12V is supplied in standard packaging, while the V23134A1052C643 is supplied in bulk packaging. Both use identical quick-connect termination and chassis mount configuration.

Q: What compliance certifications apply to both relays?

A: Both relays carry REACH Unaffected status and EAR99 export classification. The V23134A1052C643 additionally carries RoHS3 compliance certification.

Q: Is the coil current difference between these relays significant for circuit design?

A: The coil current difference (117 mA vs. 133 mA) represents a 16 mA increase. This difference must be evaluated within the context of the specific power supply and control circuit design to ensure adequate current capacity.