CF14JA620R Equivalent & Substitute Parts

Part Overview

The CF14JA620R is a 620 Ohm ±5% 1/4W axial through-hole resistor manufactured by Stackpole Electronics Inc. This carbon film resistor features flame retardant coating and safety characteristics, designed for general-purpose applications requiring reliable performance across industrial temperature ranges. The part is currently active in production with 795 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit designs.

Substiute Parts

CF14JA620R

Stackpole Electronics IncIn Stock: 859CF14JA620R Datasheet

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CFM12JA620R

Stackpole Electronics IncIn Stock: 978CFM12JA620R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The CFM12JA620R qualifies as a substitute based on the following criteria:

• Resistance Value: Both parts specify 620 Ohms, ensuring identical electrical load characteristics
• Tolerance: Both maintain ±5% tolerance, preserving circuit accuracy requirements
• Composition: Both are carbon film resistors with identical thermal and electrical properties
• Package Type: Both use axial through-hole configuration, compatible with identical PCB layouts
• Operating Temperature Range: Both support -55°C ~ 155°C, maintaining environmental performance specifications
• Temperature Coefficient: Both specify 0 / -400ppm/°C, ensuring equivalent temperature stability
• Compliance: Both are ROHS3 compliant and REACH unaffected, meeting regulatory requirements

The primary difference is the power rating: CFM12JA620R provides 0.5W (1/2W) versus the CF14JA620R's 0.25W (1/4W). This represents an upgrade path where higher power dissipation capability is available without compromising any other electrical or mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

Both CF14JA620R and CFM12JA620R are active production parts from Stackpole Electronics Inc with full ROHS3 compliance and REACH unaffected status. Selection between these parts depends on circuit power dissipation requirements:

• CF14JA620R: Select when the application requires a 1/4W power rating and space constraints favor the smaller 6.00mm length
• CFM12JA620R: Select when the application requires a 1/2W power rating or when additional thermal margin is desired; the slightly longer 6.50mm length remains compatible with standard axial through-hole PCB layouts

Both parts maintain identical electrical characteristics (620 Ohms ±5%), temperature performance (-55°C ~ 155°C), and regulatory compliance, ensuring functional equivalence within their respective power ratings.

Frequently Asked Questions (FAQ)

Q: Can CFM12JA620R replace CF14JA620R in any application?

A: CFM12JA620R can replace CF14JA620R when the circuit design permits the higher 0.5W power rating. The substitute provides identical resistance, tolerance, and temperature characteristics. Verify that the 0.256" length (6.50mm) accommodates the PCB layout, as it is 0.020" longer than the original part.

Q: What is the primary difference between these two parts?

A: The primary difference is power rating: CF14JA620R is rated at 0.25W (1/4W), while CFM12JA620R is rated at 0.5W (1/2W). All other electrical and mechanical specifications are identical.

Q: Are both parts suitable for high-temperature applications?

A: Yes. Both parts operate across the identical temperature range of -55°C ~ 155°C with the same temperature coefficient (0 / -400ppm/°C), ensuring equivalent performance in thermal environments.

Q: Do these parts require different PCB footprints?

A: Both parts use the same axial through-hole package with identical 0.091" diameter. The length difference (0.236" vs 0.256") is minimal and typically accommodated by standard axial resistor footprints. Verify specific PCB layout constraints before selection.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both CF14JA620R and CFM12JA620R are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.