CF18JA3K00 Equivalent & Substitute Parts

Part Overview

The CF18JA3K00 is a 3 kOhm ±5% 1/8W 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 maintains Active product status with 1158 units in current inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit designs.

Substiute Parts

CF18JA3K00

Stackpole Electronics IncIn Stock: 1183CF18JA3K00 Datasheet

Current PartRFQ

CFM14JT3K00

Stackpole Electronics IncIn Stock: 24381CFM14JT3K00 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CF18JA3K00 is determined by the following critical parameters:

• Resistance Value: Must be 3 kOhms
• Tolerance: Must be ±5%
• Composition: Must be Carbon Film
• Package Type: Must be Axial
• Operating Temperature Range: Must support -55°C ~ 155°C
• Temperature Coefficient: Must be 0 / -400ppm/°C
• Compliance: Must maintain ROHS3 Compliant status

The CFM14JT3K00 qualifies as a substitute part because it maintains identical electrical specifications (resistance, tolerance, composition, temperature coefficient, and operating range) and mechanical compatibility (axial package). The primary difference is the power rating upgrade from 0.125W to 0.25W, which represents a higher capability rating while maintaining all other critical parameters.

Parameter Comparison

Engineering Selection Recommendations

The CFM14JT3K00 serves as a direct electrical substitute for the CF18JA3K00 based on matched resistance, tolerance, composition, and temperature specifications. Both parts maintain ROHS3 Compliant status and identical operating temperature ranges. The CFM14JT3K00 provides increased power dissipation capability (0.25W versus 0.125W), making it suitable for applications where the original 1/8W rating may approach thermal limits. Both parts are manufactured by Stackpole Electronics Inc and feature identical flame retardant coating and safety characteristics. Selection between these parts should be based on circuit power dissipation requirements and packaging format availability (Tape & Box versus Cut Tape).

Frequently Asked Questions (FAQ)

Q: Can the CFM14JT3K00 replace the CF18JA3K00 in all applications?

A: Yes, the CFM14JT3K00 maintains identical electrical specifications (3 kOhms ±5%, carbon film composition, -55°C ~ 155°C operating range, and -400ppm/°C temperature coefficient). The higher power rating (0.25W versus 0.125W) provides additional thermal margin without affecting circuit performance.

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

A: The CFM14JT3K00 has a higher power rating (1/4W) compared to the CF18JA3K00 (1/8W). All other electrical and mechanical parameters remain identical.

Q: Are there packaging differences between these parts?

A: Yes. The CF18JA3K00 is supplied in Tape & Box (TB) format, while the CFM14JT3K00 is supplied in Cut Tape (CT) format. Both use axial package configuration.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the CF18JA3K00 and CFM14JT3K00 are ROHS3 Compliant, REACH Unaffected, and classified under ECCN EAR99.

Q: Which part should I select for new designs?

A: Selection depends on circuit power dissipation requirements and packaging preferences. The CFM14JT3K00 offers higher power capability and greater current inventory availability (24285 units versus 1158 units).