CF18JA27R0 Equivalent & Substitute Parts

Part Overview

The CF18JA27R0 is a 27 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 applications requiring reliable performance across industrial temperature ranges. The part is currently active in production with 733 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to inventory constraints, application upgrades, or design optimization needs.

Substiute Parts

CF18JA27R0

Stackpole Electronics IncIn Stock: 840CF18JA27R0 Datasheet

Current PartRFQ

CFM14JA27R0

Stackpole Electronics IncIn Stock: 20383CFM14JA27R0 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CF18JA27R0 is determined by the following critical parameters:

Electrical Equivalence Requirements:

• Resistance value: 27 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Temperature coefficient: 0 / -400ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C (exact match or better required)

Mechanical Compatibility Requirements:

• Package type: Axial (exact match required)
• Composition: Carbon Film (exact match required)
• Number of terminations: 2 (exact match required)

Compliance Requirements:

• RoHS Status: ROHS3 Compliant (exact match required)
• REACH Status: REACH Unaffected (exact match required)

The CFM14JA27R0 qualifies as a substitute part because it maintains identical electrical specifications (27 Ohms, ±5% tolerance, matching temperature coefficient and operating range) and mechanical form factor (axial package, carbon film composition, 2 terminations). The primary difference is the power rating upgrade from 0.125W to 0.25W, which represents a higher capability rating suitable for applications requiring increased power dissipation capacity while maintaining all other electrical and mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the CF18JA27R0 and CFM14JA27R0 are active production parts manufactured by Stackpole Electronics Inc with full ROHS3 compliance and REACH unaffected status, ensuring regulatory compliance for industrial and commercial applications.

The CF18JA27R0 is the primary selection when the application circuit design specifically requires a 1/8W power rating and the associated physical form factor. The CFM14JA27R0 serves as a direct substitute when higher power dissipation capacity is beneficial or when inventory availability of the primary part is constrained. The CFM14JA27R0's 1/4W rating provides additional thermal margin without altering electrical performance, making it suitable for applications where thermal stress or component reliability is a design consideration.

Selection between these parts should be based on circuit power dissipation requirements and available inventory. Both parts maintain identical electrical characteristics and mechanical compatibility within axial through-hole resistor applications.

Frequently Asked Questions (FAQ)

Q: Can CFM14JA27R0 be used as a direct replacement for CF18JA27R0 in existing designs?

A: Yes. The CFM14JA27R0 maintains identical resistance (27 Ohms), tolerance (±5%), temperature coefficient (0 / -400ppm/°C), and operating temperature range (-55°C to 155°C). Both parts use axial packaging with carbon film composition and 2 terminations. The higher power rating (0.25W vs 0.125W) represents increased capability and does not create compatibility issues in circuits designed for the CF18JA27R0.

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

A: The primary difference is the power rating. The CF18JA27R0 is rated at 0.125W (1/8W), while the CFM14JA27R0 is rated at 0.25W (1/4W). All other electrical and mechanical specifications are identical.

Q: Are both parts RoHS compliant?

A: Yes. Both the CF18JA27R0 and CFM14JA27R0 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: Does the packaging format affect substitution compatibility?

A: Packaging format (Tape & Box for CF18JA27R0 vs Cut Tape for CFM14JA27R0) affects supply chain and handling procedures but does not affect electrical or mechanical compatibility. Both parts are identical axial through-hole resistors suitable for the same circuit applications.

Q: What temperature range do these resistors support?

A: Both parts operate across the temperature range of -55°C to 155°C with a temperature coefficient of 0 / -400ppm/°C, providing stable performance across industrial and commercial operating conditions.