CMF659M0000FKBF Equivalent & Substitute Parts

Part Overview

The CMF659M0000FKBF is a 9 MOhms ±1% 1.5W through-hole resistor manufactured by Vishay Dale in the CMF series. This metal film axial resistor features flame retardant coating and moisture resistance, designed for applications requiring high resistance values with tight tolerance specifications. The part is currently active in production with 828 units in stock. Substitute parts are necessary when the primary part becomes unavailable or when design requirements mandate alternative compliance certifications.

Substiute Parts

CMF659M0000FKBF

Vishay DaleIn Stock: 925CMF659M0000FKBF Datasheet

Current PartRFQ

CMF659M0000FKEK

Vishay DaleIn Stock: 1300CMF659M0000FKEK Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMF659M0000FKBF is determined by the following critical parameters:

• Resistance value: 9 MOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 1.5W (exact match required)
• Composition: Metal Film (exact match required)
• Package type: Axial (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C to 175°C (exact match required)
• Physical dimensions: 0.180" Dia x 0.562" L (exact match required)

The substitute part CMF659M0000FKEK meets all electrical and mechanical parameters identically to the main part, differing only in RoHS compliance status and REACH classification.

Parameter Comparison

Engineering Selection Recommendations

Both CMF659M0000FKBF and CMF659M0000FKEK are functionally equivalent for circuit performance. Selection between these parts depends on regulatory and compliance requirements:

• Select CMF659M0000FKBF when RoHS non-compliant designs are acceptable and REACH-affected materials are permitted.
• Select CMF659M0000FKEK when ROHS3 compliance is required or when REACH-unaffected material sourcing is mandated by design specifications or regional regulations.

Both parts share identical electrical characteristics, mechanical dimensions, and thermal performance. The CMF659M0000FKEK offers higher inventory availability at 1236 units compared to 828 units for the CMF659M0000FKBF.

Frequently Asked Questions (FAQ)

Q: Can CMF659M0000FKEK replace CMF659M0000FKBF in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The CMF659M0000FKEK can be substituted directly without circuit redesign. Verify that your design requirements permit ROHS3-compliant components.

Q: What is the difference between these two part numbers?

A: The parts differ only in RoHS compliance status and REACH classification. CMF659M0000FKBF is RoHS non-compliant and REACH-affected. CMF659M0000FKEK is ROHS3 compliant and REACH-unaffected. All electrical and mechanical specifications are identical.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.180" diameter by 0.562" length (4.57mm x 14.27mm) and use identical axial packaging with 2 terminations.

Q: Which part should I specify for new designs?

A: Specify CMF659M0000FKEK for new designs requiring ROHS3 compliance or REACH-unaffected sourcing. This part also has higher inventory availability.

Q: Do these parts have the same temperature performance?

A: Yes. Both parts operate across -55°C to 175°C with identical ±100ppm/°C temperature coefficient and 1.5W power rating.