CF18JA56R0 Equivalent & Substitute Parts

Part Overview

The CF18JA56R0 is a 56 Ohm, ±5% tolerance, 1/8W (0.125W) axial through-hole resistor manufactured by Stackpole Electronics Inc. This carbon film resistor features flame retardant coating and safety characteristics, designed for general-purpose electronic applications requiring reliable passive component performance across industrial and commercial temperature ranges.

The part maintains Active product status with 827 units in current inventory. Substitute parts are identified to address application requirements where higher power dissipation capability or alternative packaging formats may be necessary while maintaining electrical and mechanical compatibility.

Substiute Parts

CF18JA56R0

Stackpole Electronics IncIn Stock: 869CF18JA56R0 Datasheet

Current PartRFQ

CFM14JA56R0

Stackpole Electronics IncIn Stock: 9030CFM14JA56R0 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CF18JA56R0 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 56 Ohms
• Tolerance: ±5%
• Composition: Carbon Film
• Package configuration: Axial through-hole
• Operating temperature range: -55°C to 155°C minimum
• Temperature coefficient: 0 / -400 ppm/°C
• Compliance certifications: ROHS3, REACH Unaffected, EAR99

Allowable Variation Parameters:

• Power rating: May be equal or higher than 0.125W
• Packaging format: Tape & Box (TB) or Cut Tape (CT) formats are interchangeable for component selection
• Physical dimensions: Maintained within axial package specifications
• Inventory source: Original manufacturer stock

The CFM14JA56R0 qualifies as a direct substitute based on matching all mandatory electrical parameters while providing increased power dissipation capability (0.25W vs. 0.125W).

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (CF18JA56R0): Select the CF18JA56R0 for applications where the 1/8W power rating is sufficient and component space is constrained. This part maintains Active product status with established supply availability and full ROHS3 and REACH compliance certification.

Substitute Part Selection (CFM14JA56R0): The CFM14JA56R0 is electrically and mechanically compatible for direct substitution in circuits where the CF18JA56R0 is specified. The increased 1/4W power rating provides additional thermal margin in applications approaching the original part's power dissipation limits. Both parts maintain identical electrical characteristics, temperature performance, and regulatory compliance status. Selection between these parts depends solely on circuit power requirements and packaging format availability.

Frequently Asked Questions (FAQ)

Q: Can CFM14JA56R0 replace CF18JA56R0 in existing designs?

A: Yes. The CFM14JA56R0 is a direct electrical and mechanical substitute. Both parts share identical resistance, tolerance, temperature coefficient, and operating temperature specifications. The CFM14JA56R0's higher power rating (0.25W vs. 0.125W) does not create compatibility issues in circuits designed for the CF18JA56R0.

Q: What is the primary difference between these parts?

A: The power rating differs: CF18JA56R0 is rated at 0.125W (1/8W), while CFM14JA56R0 is rated at 0.25W (1/4W). All other electrical and mechanical parameters are identical.

Q: Are packaging formats interchangeable?

A: Both parts use axial through-hole package configuration. The CF18JA56R0 is supplied in Tape & Box (TB) format, while CFM14JA56R0 is supplied in Cut Tape (CT) format. Both formats are compatible with standard through-hole assembly processes.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both CF18JA56R0 and CFM14JA56R0 are ROHS3 Compliant, REACH Unaffected, and classified under ECCN EAR99. Regulatory compliance is identical between the two parts.

Q: Which part should be selected for new designs?

A: Selection depends on circuit power requirements. If the application requires 0.125W or less, either part is suitable. If power dissipation approaches or exceeds 0.125W, the CFM14JA56R0 provides additional thermal margin. Both parts maintain Active product status with current manufacturer support.