CMF55100R00FEEK Equivalent & Substitute Parts

Part Overview

The CMF55100R00FEEK is a 100 Ohm, 1/2W metal film axial resistor manufactured by Vishay Dale. This through-hole component features flame retardant coating and moisture resistance, designed for applications requiring precision resistive elements in compact form factors. The part maintains Active product status with full RoHS3 compliance and REACH compliance. Substitute parts are identified to address inventory availability, tolerance requirements, or specific application needs while maintaining electrical and mechanical compatibility.

Substiute Parts

CMF55100R00FEEK

Vishay DaleIn Stock: 773CMF55100R00FEEK Datasheet

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CMF55100R00BEEK

Vishay DaleIn Stock: 1312CMF55100R00BEEK Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the CMF55100R00FEEK is determined by the following critical parameters that must remain constant or improve:

• Resistance value: 100 Ohms (exact match required)
• Power rating: 0.5W minimum (equal or higher acceptable)
• Package type: Axial (mechanical compatibility)
• Composition: Metal Film (electrical characteristics)
• Operating temperature range: -55°C to 175°C minimum
• Physical dimensions: 0.090" Dia × 0.240" L (footprint compatibility)
• Compliance: RoHS3 and REACH status

The identified substitute CMF55100R00BEEK maintains all critical parameters while offering improved tolerance specification (±0.1% versus ±1%), making it suitable for applications requiring tighter resistance accuracy.

Parameter Comparison

Engineering Selection Recommendations

Both the CMF55100R00FEEK and CMF55100R00BEEK are Active products with full RoHS3 compliance and equivalent environmental certifications. Selection between these parts depends on tolerance requirements:

• Use CMF55100R00FEEK where ±1% tolerance meets circuit specifications and cost optimization is prioritized.
• Use CMF55100R00BEEK where ±0.1% tolerance is required for precision applications, such as reference circuits, measurement instrumentation, or high-accuracy analog signal conditioning.

Both parts maintain identical thermal characteristics, operating temperature ranges, and physical form factors, ensuring direct mechanical and electrical interchangeability within their respective tolerance classes.

Frequently Asked Questions (FAQ)

Q: Can CMF55100R00BEEK replace CMF55100R00FEEK in any application?

A: Yes, CMF55100R00BEEK is a direct substitute with improved tolerance specification. The tighter ±0.1% tolerance of the BEEK variant is compatible with all applications designed for the ±1% FEEK variant. No circuit redesign is required.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts share identical axial package dimensions of 0.090" diameter × 0.240" length (2.29mm × 6.10mm), ensuring identical PCB footprint and mounting compatibility.

Q: Do both parts meet the same compliance requirements?

A: Both CMF55100R00FEEK and CMF55100R00BEEK are ROHS3 compliant. The FEEK variant is REACH Affected, while the BEEK variant is REACH Unaffected. Verify REACH compliance requirements for your specific application and region.

Q: What is the temperature coefficient difference between these parts?

A: Both parts share an identical temperature coefficient of ±25ppm/°C and operate across the same temperature range of -55°C to 175°C. No thermal performance difference exists between the variants.

Q: Are there any inventory or lead time considerations?

A: Inventory levels differ between variants. Verify current stock availability with your supplier to determine part selection based on delivery requirements.