CM1F-D-12V Equivalent & Substitute Parts

Part Overview

The CM1F-D-12V is a Panasonic Electric Works automotive SPDT relay rated for 35A at 12VDC. This part is classified as obsolete, making equivalent substitutes necessary for ongoing system support and procurement. The relay features a non-latching coil, diode protection with sealed flux protection, and socketable mounting with plug-in termination. Substitutes must maintain functional equivalence across coil voltage, contact form, and switching characteristics while accommodating differences in contact current ratings and operating temperature ranges.

Substiute Parts

CM1F-D-12V

Panasonic Electric WorksIn Stock: 816CM1F-D-12V Datasheet

Current PartRFQ

6-1419137-4

TE Connectivity AMP ConnectorsIn Stock: 645676-1419137-4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CM1F-D-12V is determined by the following mandatory parameters:

• Coil voltage must be 12VDC
• Contact form must be SPDT (1 Form C)
• Coil type must be non-latching
• Mounting type must be socketable
• Termination style must be plug-in
• Operating temperature range must encompass or exceed -40°C to 85°C

The substitute part 6-1419137-4 (TE Connectivity AMP Connectors) meets these core functional requirements. Variations in contact current rating (25A vs. 35A), coil current (100.8 mA vs. 125 mA), and operating temperature upper limit (125°C vs. 85°C) are acceptable within the substitution framework, as the substitute maintains the required electrical and mechanical interface characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 6-1419137-4 is a functional substitute for the obsolete CM1F-D-12V based on matching coil voltage, contact form, and socketable plug-in interface. The substitute is currently in active production status, ensuring long-term availability and supply chain continuity.

Key considerations for selection:

• The substitute has a lower contact current rating (25A vs. 35A). Applications requiring the full 35A capacity of the original part must be evaluated for compatibility with the 25A limit.
• The substitute exhibits faster switching response (6 ms operate, 3 ms release vs. 10 ms and 15 ms), which may affect circuit timing in applications sensitive to relay response characteristics.
• The substitute operates across a wider temperature range (-40°C to 125°C vs. -40°C to 85°C), providing additional thermal margin in high-temperature environments.
• The substitute is RoHS compliant, whereas the main part status is not specified in the provided data.
• Both parts carry EAR99 export classification and are unaffected or undefined under REACH regulations as provided.

Frequently Asked Questions (FAQ)

Q: Can the 6-1419137-4 directly replace the CM1F-D-12V in all applications?

A: Direct replacement is possible only if the application circuit operates at or below 25A contact current. If the original design requires the full 35A capacity, the substitute is not suitable without circuit redesign or parallel relay configuration.

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

A: Both relays operate at 12VDC with SPDT contact form. The main differences are contact current rating (35A vs. 25A), coil current (125 mA vs. 100.8 mA), and switching response times. The substitute operates faster and across a wider temperature range.

Q: Are the mounting and termination interfaces identical?

A: Yes. Both relays feature socketable mounting with plug-in termination, ensuring mechanical and electrical interface compatibility.

Q: Does the substitute meet RoHS requirements?

A: The 6-1419137-4 is RoHS compliant. The original CM1F-D-12V RoHS status is not specified in the provided data.

Q: What is the impact of the faster switching times in the substitute?

A: The substitute operates in 6 ms and releases in 3 ms, compared to 10 ms and 15 ms for the original. Applications with timing-critical circuits must evaluate whether the faster response affects system performance or requires circuit adjustment.

Q: Are there packaging differences between these parts?

A: The CM1F-D-12V is packaged as standard, while the 6-1419137-4 is supplied in bulk packaging. Verify packaging requirements for your procurement and assembly processes.