CMF554M0000FKBF Equivalent & Substitute Parts

Part Overview

The CMF554M0000FKBF is a 4 MOhms ±1% metal film through-hole resistor rated at 0.5W (1/2W) in axial package configuration. Manufactured by Vishay Dale, this component features flame retardant coating and moisture-resistant properties suitable for industrial and commercial applications. The part maintains active product status with 899 units in current inventory. Substitute parts may be required due to application-specific tolerance requirements, inventory availability, or performance specifications that demand tighter electrical parameters.

Substiute Parts

CMF554M0000FKBF

Vishay DaleIn Stock: 1005CMF554M0000FKBF Datasheet

Current PartRFQ

CMF554M0000BHBF

Vishay DaleIn Stock: 1517CMF554M0000BHBF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMF554M0000FKBF is determined by the following critical parameters:

Primary Substitution Criteria:

• Resistance value: 4 MOhms (exact match required)
• Power rating: 0.5W minimum
• Package type: Axial configuration
• Physical dimensions: 0.090" Dia x 0.240" L
• Operating temperature range: -55°C to 175°C minimum
• Composition: Metal film construction
• Termination count: 2 leads

Secondary Compatibility Parameters:

• Tolerance: May be equal or tighter (±1% or better)
• Temperature coefficient: May be equal or lower (±100ppm/°C or better)
• Manufacturer: Vishay Dale series CMF

The CMF554M0000BHBF qualifies as a direct substitute based on identical resistance, power rating, package configuration, physical dimensions, operating temperature range, and composition. The substitute offers improved electrical performance through tighter tolerance (±0.1% versus ±1%) and lower temperature coefficient (±50ppm/°C versus ±100ppm/°C).

Parameter Comparison

Engineering Selection Recommendations

CMF554M0000FKBF Selection Criteria: Select this part when standard tolerance (±1%) meets circuit requirements and cost optimization is prioritized. The component maintains active product status with established inventory levels.

CMF554M0000BHBF Selection Criteria: Select this substitute when applications require tighter tolerance control (±0.1%) or lower temperature coefficient drift (±50ppm/°C). This part is suitable for precision analog circuits, measurement instrumentation, or temperature-sensitive applications. Higher inventory availability (1467 units) supports extended production runs.

Both parts share identical RoHS non-compliance status, REACH affected classification, and EAR99 ECCN designation. Selection between these parts depends solely on tolerance and temperature coefficient requirements within the specified operating range.

Frequently Asked Questions (FAQ)

Q: Can CMF554M0000BHBF replace CMF554M0000FKBF in any application? A: Yes, the CMF554M0000BHBF is a direct substitute. It provides identical resistance, power rating, package configuration, and physical dimensions. The substitute offers superior electrical performance through tighter tolerance and lower temperature coefficient.

Q: What is the primary difference between these two parts? A: The main differences are tolerance specification (±1% versus ±0.1%) and temperature coefficient (±100ppm/°C versus ±50ppm/°C). Both parts are 4 MOhms metal film axial resistors with 0.5W power rating.

Q: Are the physical dimensions identical? A: Yes. Both parts measure 0.090" diameter by 0.240" length (2.29mm x 6.10mm) and use identical axial package configuration. They are mechanically interchangeable.

Q: Does tolerance affect circuit board layout or mounting? A: No. Tolerance is an electrical specification that does not affect physical mounting, PCB layout, or mechanical installation. Both parts use identical axial termination configuration.

Q: Which part should be selected for precision applications? A: The CMF554M0000BHBF is recommended for precision applications due to ±0.1% tolerance and ±50ppm/°C temperature coefficient, providing superior stability across the -55°C to 175°C operating range.

Q: Is inventory availability a factor in part selection? A: Inventory levels may influence procurement decisions. CMF554M0000BHBF has higher availability (1467 units) compared to CMF554M0000FKBF (899 units), supporting extended production schedules.