CF18JT2R00 Equivalent & Substitute Parts

Part Overview

The CF18JT2R00 is a 2 Ohm ±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 electronic applications requiring precise resistance values in compact form factors. The part is currently in active production status with 890 pieces available in new original inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct functional replacement in circuit designs.

Substiute Parts

CF18JT2R00

Stackpole Electronics IncIn Stock: 943CF18JT2R00 Datasheet

Current PartRFQ

CFM14JT2R00

Stackpole Electronics IncIn Stock: 17186CFM14JT2R00 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The CFM14JT2R00 qualifies as a substitute for the CF18JT2R00 based on the following critical parameters:

Matching Electrical Specifications:

• Resistance value: 2 Ohms (identical)
• Tolerance: ±5% (identical)
• Composition: Carbon Film (identical)
• Temperature Coefficient: ±400ppm/°C (identical)
• Operating Temperature Range: -55°C to 155°C (identical)

Mechanical Compatibility:

• Package Type: Axial (identical)
• Physical Dimensions: 0.067" Dia x 0.130" L (1.70mm x 3.30mm) (identical)
• Number of Terminations: 2 (identical)

Compliance Alignment:

• RoHS Status: ROHS3 Compliant (identical)
• REACH Status: REACH Unaffected (identical)
• ECCN: EAR99 (identical)

Substitution Basis: The CFM14JT2R00 provides higher power dissipation capability (0.25W vs. 0.125W) while maintaining all other electrical and mechanical parameters. This upgrade substitution allows the CFM14JT2R00 to function in applications designed for the CF18JT2R00 without circuit redesign, provided the application does not require the specific lower power rating of the original part.

Parameter Comparison

Engineering Selection Recommendations

Both the CF18JT2R00 and CFM14JT2R00 maintain active production status with full ROHS3 compliance and REACH unaffected certification. The CFM14JT2R00 represents an upgrade path offering doubled power dissipation capacity while preserving all critical electrical parameters and mechanical form factor. Selection between these parts depends on application power requirements and packaging format availability. The CF18JT2R00 remains the specified component for designs with strict 1/8W power constraints. The CFM14JT2R00 is suitable for applications where the original 1/8W specification can accommodate the higher 1/4W rating without thermal or circuit performance degradation.

Frequently Asked Questions (FAQ)

Q: Can the CFM14JT2R00 directly replace the CF18JT2R00 in existing circuit designs?

A: Yes, the CFM14JT2R00 provides direct functional replacement. Both parts share identical resistance values (2 Ohms), tolerance (±5%), temperature coefficient (±400ppm/°C), operating temperature range (-55°C to 155°C), and physical dimensions (0.067" Dia x 0.130" L). The CFM14JT2R00 offers higher power dissipation (0.25W vs. 0.125W), which does not create compatibility issues in applications designed for the lower-rated part.

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

A: The primary difference is power rating. The CF18JT2R00 is rated at 0.125W (1/8W), while the CFM14JT2R00 is rated at 0.25W (1/4W). All other electrical and mechanical specifications remain identical.

Q: Are there packaging differences between these parts?

A: Yes. The CF18JT2R00 is supplied in Tape & Reel (TR) packaging, while the CFM14JT2R00 is supplied in Cut Tape (CT) packaging. Both use identical axial component form factors with the same physical dimensions.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the CF18JT2R00 and CFM14JT2R00 are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99.

Q: Which part should be selected for new designs?

A: Selection depends on application power requirements. If the circuit dissipates less than 0.125W through the resistor, either part is acceptable. If power dissipation approaches or exceeds 0.125W, the CFM14JT2R00 provides thermal margin. Both parts are in active production with established supply availability.