CMF552M2000FLEK Equivalent & Substitute Parts

Part Overview

The CMF552M2000FLEK is a 2.2 MOhms ±1% metal film axial resistor rated at 0.5W (1/2W) manufactured by Vishay Dale. This through-hole component features flame retardant coating and moisture resistance, designed for applications requiring reliable high-impedance resistance in harsh environments. The part maintains Active product status with full RoHS3 and REACH compliance. Substitute parts are identified when equivalent electrical and mechanical specifications can satisfy the same circuit requirements while maintaining compliance and reliability standards.

Substiute Parts

CMF552M2000FLEK

Vishay DaleIn Stock: 969CMF552M2000FLEK Datasheet

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CMF552M2000BHEK

Vishay DaleIn Stock: 812CMF552M2000BHEK Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMF552M2000FLEK is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 2.2 MOhms (exact match required)
• Power rating: 0.5W minimum
• Package type: Axial configuration
• Physical dimensions: 0.090" Dia x 0.240" L
• Composition: Metal film construction
• Operating temperature range: -55°C to 175°C minimum
• Compliance: RoHS3 and REACH status

Allowable Variation Parameters:

• Tolerance: May be equal or tighter (lower tolerance value acceptable)
• Temperature coefficient: May be equal or lower (improved stability acceptable)

The CMF552M2000BHEK qualifies as a direct substitute based on identical resistance, power rating, package configuration, dimensions, and compliance certifications. The substitute offers improved tolerance (±0.1% versus ±1%) and superior temperature coefficient (±50ppm/°C versus ±150ppm/°C), making it suitable for applications where tighter specifications enhance circuit performance.

Parameter Comparison

Engineering Selection Recommendations

Both the CMF552M2000FLEK and CMF552M2000BHEK maintain Active product status with identical RoHS3 and REACH compliance certifications, ensuring regulatory alignment for current and future applications. The CMF552M2000BHEK provides enhanced performance characteristics through tighter tolerance (±0.1%) and improved temperature stability (±50ppm/°C), making it suitable for precision circuits where component drift must be minimized. Selection between these parts depends on circuit tolerance requirements: the CMF552M2000FLEK satisfies applications with ±1% tolerance specifications, while the CMF552M2000BHEK addresses designs requiring superior accuracy and thermal stability. Both parts share identical mechanical compatibility, thermal operating range, and compliance documentation, enabling direct substitution without circuit board redesign.

Frequently Asked Questions (FAQ)

Q: Can CMF552M2000BHEK replace CMF552M2000FLEK in existing designs?

A: Yes. Both parts share identical resistance value, power rating, package configuration, physical dimensions, and operating temperature range. The substitute offers improved tolerance and temperature coefficient, which are compatible with or exceed the original specification requirements.

Q: What is the primary difference between these two parts?

A: The CMF552M2000BHEK provides tighter tolerance (±0.1% versus ±1%) and superior temperature coefficient stability (±50ppm/°C versus ±150ppm/°C). Resistance value, power rating, and package type remain identical.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain identical RoHS3 and REACH compliance status, ensuring equivalent regulatory qualification for the same applications.

Q: Will the substitute part fit the same PCB footprint?

A: Yes. Both parts use identical axial package configuration with matching physical dimensions (0.090" Dia x 0.240" L), requiring no PCB layout modifications.

Q: Which part should be selected for high-precision applications?

A: The CMF552M2000BHEK is recommended for circuits where component tolerance and temperature stability directly impact performance. The ±0.1% tolerance and ±50ppm/°C coefficient provide superior accuracy compared to the ±1% tolerance and ±150ppm/°C coefficient of the CMF552M2000FLEK.

Q: Are both parts currently available?

A: Both parts maintain Active product status. Inventory availability should be confirmed with the supplier, as stock levels may vary.