CFM14JT2M40 Equivalent & Substitute Parts

Part Overview

The CFM14JT2M40 is a 2.4 MOhms ±5% 0.25W 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 high-resistance values in compact form factors. The part is currently active in production with ROHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility can be maintained across different packaging configurations.

Substiute Parts

CFM14JT2M40

Stackpole Electronics IncIn Stock: 1085CFM14JT2M40 Datasheet

Current PartRFQ

CF14JT2M40

Stackpole Electronics IncIn Stock: 25615CF14JT2M40 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CFM14JT2M40 is determined by strict equivalence across the following critical parameters:

• Resistance value: 2.4 MOhms
• Tolerance: ±5%
• Power rating: 0.25W (1/4W)
• Composition: Carbon Film
• Package type: Axial
• Temperature coefficient: 0 / -1500ppm/°C
• Operating temperature range: -55°C to 155°C
• Compliance certifications: ROHS3, REACH unaffected

The CF14JT2M40 qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. Packaging configuration differs (Cut Tape versus Tape & Reel), but this represents a supply chain variation rather than a functional incompatibility. Both parts share the same series lineage (CFM/CF) and manufacturing standards from Stackpole Electronics Inc.

Parameter Comparison

Engineering Selection Recommendations

The CF14JT2M40 is a valid substitute for the CFM14JT2M40 based on complete electrical and mechanical equivalence. Both parts maintain identical resistance, tolerance, power rating, and thermal characteristics. The difference in packaging format (Cut Tape versus Tape & Reel) reflects supply chain availability and does not affect component performance or circuit functionality.

Both parts carry ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for applications subject to environmental and safety standards. Selection between these parts should be based on procurement requirements, inventory availability, and assembly process compatibility with the respective packaging formats.

Frequently Asked Questions (FAQ)

Q: Can CF14JT2M40 be used in place of CFM14JT2M40 in production assemblies?

A: Yes. The CF14JT2M40 provides identical electrical performance and mechanical fit. The only difference is packaging format (Cut Tape versus Tape & Reel). Assembly equipment compatibility with the packaging format should be verified.

Q: Are there dimensional differences between these parts?

A: Both parts are axial through-hole resistors with different physical dimensions. CFM14JT2M40 measures 0.067" Dia x 0.130" L (1.70mm x 3.30mm). CF14JT2M40 measures 0.091" Dia x 0.236" L (2.30mm x 6.00mm). These dimensional variations are within the axial resistor category and do not affect electrical substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both CFM14JT2M40 and CF14JT2M40 are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements.

Q: What determines substitution eligibility for this resistor?

A: Substitution is based on matching resistance value (2.4 MOhms), tolerance (±5%), power rating (0.25W), composition (carbon film), temperature coefficient (0 / -1500ppm/°C), and operating temperature range (-55°C to 155°C). All these parameters are identical between the main part and substitute.