CMF501M0000FKBF Equivalent & Substitute Parts

Part Overview

The CMF501M0000FKBF is a 1 MOhm ±1% metal film through-hole resistor rated at 0.25W (1/4W) in axial package configuration. This component is manufactured by Vishay Dale and is currently in active product status. The part features flame retardant coating and moisture-resistant properties suitable for industrial and commercial applications. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same resistance value, tolerance, power rating, and package type.

Substiute Parts

CMF501M0000FKBF

Vishay DaleIn Stock: 754CMF501M0000FKBF Datasheet

Current PartRFQ

CMF501M0000FKEK

Vishay DaleIn Stock: 1111CMF501M0000FKEK Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMF501M0000FKBF is determined by strict equivalence across the following critical parameters:

• Resistance value: 1 MOhms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Composition: Metal Film
• Package: Axial through-hole
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 175°C
• Physical dimensions: 0.065" Dia x 0.150" L

The identified substitute CMF501M0000FKEK maintains identical electrical and mechanical specifications. Substitution is valid only when all parameters listed above are matched. Deviations in any parameter render a part incompatible for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

Both CMF501M0000FKBF and CMF501M0000FKEK are electrically and mechanically equivalent for direct substitution in circuit applications requiring 1 MOhm ±1% metal film resistors at 0.25W power rating in axial package configuration.

The primary distinction between these parts is regulatory compliance status. CMF501M0000FKEK carries ROHS3 compliance and REACH unaffected status, whereas CMF501M0000FKBF is RoHS non-compliant and REACH affected. Selection between these parts should be based on applicable regulatory requirements for the end application and target market.

Both parts maintain identical electrical performance, temperature characteristics, and physical dimensions, ensuring functional interchangeability in circuit design.

Frequently Asked Questions (FAQ)

Q: Can CMF501M0000FKEK be used as a direct replacement for CMF501M0000FKBF?

A: Yes. Both parts are electrically and mechanically equivalent with identical resistance (1 MOhms), tolerance (±1%), power rating (0.25W), composition (metal film), package type (axial), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 175°C), and physical dimensions (0.065" Dia x 0.150" L). The primary difference is regulatory compliance status.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution requires equivalence in resistance value, tolerance, power rating, composition type, package configuration, temperature coefficient, operating temperature range, and physical dimensions. Any deviation in these parameters disqualifies a part from direct substitution.

Q: Does the difference in RoHS and REACH status affect electrical performance?

A: No. RoHS and REACH compliance status are regulatory designations that do not impact electrical or thermal performance. Selection should be based on applicable regulatory requirements for your application and market.

Q: Are the physical dimensions identical between the main part and substitute?

A: Yes. Both CMF501M0000FKBF and CMF501M0000FKEK share identical dimensions of 0.065" Dia x 0.150" L (1.65mm x 3.81mm), ensuring compatibility with existing PCB layouts and through-hole mounting patterns.

Q: What is the temperature operating range for these resistors?

A: Both parts operate across -55°C to 175°C with a temperature coefficient of ±100ppm/°C, providing stable resistance performance across industrial temperature ranges.