CFM12JT2K40 Equivalent & Substitute Parts

Part Overview

The CFM12JT2K40 is a 2.4 kOhms ±5% 0.5W through-hole resistor manufactured by Stackpole Electronics Inc. This axial carbon film resistor features flame retardant coating and safety characteristics, designed for general-purpose electronic applications requiring reliable resistance values across industrial and commercial temperature ranges. The part is currently active in production with full RoHS3 compliance. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the allowed parameter set.

Substiute Parts

CFM12JT2K40

Stackpole Electronics IncIn Stock: 5191CFM12JT2K40 Datasheet

Current PartRFQ

CF12JT2K40

Stackpole Electronics IncIn Stock: 99582CF12JT2K40 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CFM12JT2K40 is determined by strict equivalence across the following electrical and mechanical parameters:

• Resistance value: 2.4 kOhms
• Tolerance: ±5%
• Power rating: 0.5W (1/2W)
• Composition: Carbon Film
• Package configuration: Axial through-hole
• Temperature coefficient: 0 / -400ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Termination count: 2
• Compliance certifications: RoHS3 Compliant, REACH Unaffected

The CF12JT2K40 meets all substitution criteria as a manufacturer-recommended equivalent from Stackpole Electronics Inc, maintaining identical electrical specifications and material composition while operating within the same environmental parameters.

Parameter Comparison

Engineering Selection Recommendations

Both CFM12JT2K40 and CF12JT2K40 are active production parts from Stackpole Electronics Inc with full RoHS3 compliance and REACH unaffected status. Selection between these parts is based on availability and packaging format. The CF12JT2K40 carries higher inventory levels (99,553 pcs) compared to CFM12JT2K40 (5,142 pcs), making it the preferred choice for applications where supply continuity is a consideration. Both parts maintain identical electrical performance and environmental operating specifications, ensuring functional interchangeability in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can CF12JT2K40 be used as a direct replacement for CFM12JT2K40?

A: Yes. Both parts are electrically and mechanically equivalent, sharing identical resistance values, tolerance, power ratings, composition, and operating temperature ranges. Both are manufactured by Stackpole Electronics Inc and carry equivalent compliance certifications.

Q: Are there physical dimension differences between these parts?

A: Yes. CFM12JT2K40 measures 0.091" Dia x 0.256" L (2.30mm x 6.50mm), while CF12JT2K40 measures 0.106" Dia x 0.335" L (2.70mm x 8.50mm). Physical board layout and PCB hole spacing must accommodate the larger CF12JT2K40 dimensions.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both CFM12JT2K40 and CF12JT2K40 are ROHS3 compliant, REACH unaffected, and carry EAR99 ECCN classification with identical HTSUS codes.

Q: What determines substitution eligibility for this resistor category?

A: Substitution is valid when resistance value, tolerance, power rating, composition, package type, temperature coefficient, operating temperature range, and compliance certifications remain identical. Physical dimensions may vary within the axial package category.

Q: Is temperature coefficient performance identical between these parts?

A: Yes. Both parts specify 0 / -400ppm/°C temperature coefficient and operate across the identical -55°C ~ 155°C temperature range.