CF14JA9K10 Equivalent & Substitute Parts

Part Overview

The CF14JA9K10 is a 9.1 kOhms ±5% 0.25W (1/4W) through-hole axial 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 648 units in stock. Substitute parts are identified when design requirements allow for increased power dissipation capability or when primary inventory becomes unavailable.

Substiute Parts

CF14JA9K10

Stackpole Electronics IncIn Stock: 678CF14JA9K10 Datasheet

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CFM12JT9K10

Stackpole Electronics IncIn Stock: 7211CFM12JT9K10 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CF14JA9K10 is determined by the following criteria:

Mandatory matching parameters:

• Resistance value: 9.1 kOhms
• Tolerance: ±5%
• Composition: Carbon Film
• Package type: Axial
• Operating temperature range: -55°C to 155°C
• Temperature coefficient: 0 / -400 ppm/°C
• Compliance certifications: ROHS3 Compliant, REACH Unaffected

Allowable variation:

• Power rating: May be equal to or greater than 0.25W
• Physical dimensions: May vary within axial package specifications
• Packaging format: May differ (Tape & Box vs. Cut Tape)
• Series designation: May differ (CF vs. CFM)

The CFM12JT9K10 qualifies as a substitute because it maintains identical electrical specifications while providing increased power dissipation capability (0.5W vs. 0.25W), making it suitable for applications requiring higher thermal headroom.

Parameter Comparison

Engineering Selection Recommendations

The CFM12JT9K10 is a valid substitute for the CF14JA9K10 in applications where the circuit design permits increased power dissipation. Both parts maintain identical electrical characteristics (9.1 kOhms ±5%, carbon film composition) and operate across the same temperature range (-55°C to 155°C). Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Selection between these parts should be based on circuit power requirements. The CF14JA9K10 is appropriate for applications with power dissipation up to 0.25W. The CFM12JT9K10 provides additional thermal margin for applications approaching or exceeding 0.25W dissipation. Both parts are currently in active production with adequate inventory availability.

Frequently Asked Questions (FAQ)

Q: Can CFM12JT9K10 be used as a direct replacement for CF14JA9K10?

A: Yes, in applications where the circuit design permits. The CFM12JT9K10 provides identical electrical performance with higher power rating capability. Physical dimensions differ slightly (0.256" L vs. 0.236" L), which may affect board layout in space-constrained designs.

Q: What is the primary difference between these parts?

A: The power rating differs: CF14JA9K10 is rated at 0.25W, while CFM12JT9K10 is rated at 0.5W. All other electrical parameters remain identical.

Q: Are both parts RoHS compliant?

A: Yes, both CF14JA9K10 and CFM12JT9K10 are ROHS3 compliant and REACH unaffected.

Q: Does the packaging format affect electrical performance?

A: No. The CF14JA9K10 is supplied in Tape & Box format, while CFM12JT9K10 is supplied in Cut Tape format. Packaging format does not affect electrical characteristics or performance.

Q: What temperature range do these resistors support?

A: Both parts operate across -55°C to 155°C with a temperature coefficient of 0 / -400 ppm/°C.