CMF554R3200FKBF Equivalent & Substitute Parts

Part Overview

The CMF554R3200FKBF is a 4.32 Ohm, 1/2W (0.5W) through-hole axial resistor manufactured by Vishay Dale. This metal film resistor features flame retardant coating and moisture resistance, designed for applications requiring precision resistance values with ±1% tolerance. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and repair applications.

Substiute Parts

CMF554R3200FKBF

Vishay DaleIn Stock: 1143CMF554R3200FKBF Datasheet

Current PartRFQ

CMF554R3200FKEB

Vishay DaleIn Stock: 843CMF554R3200FKEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CMF554R3200FKBF is determined by electrical and mechanical parameter equivalence within the Vishay Dale CMF series. The substitute part must satisfy the following criteria:

Electrical Parameters (Must Match Exactly):

• Resistance value: 4.32 Ohms
• Tolerance: ±1%
• Power rating: 0.5W (1/2W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 175°C

Mechanical Parameters (Must Match Exactly):

• Package type: Axial
• Physical dimensions: 0.090" Dia x 0.240" L (2.29mm x 6.10mm)
• Composition: Metal Film
• Features: Flame Retardant Coating, Moisture Resistant, Safety

Packaging Variation (Allowed):

• The primary difference between the main part and substitute is packaging format: Bulk versus Tape & Reel (TR). Both formats contain electrically and mechanically identical components and are interchangeable in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The CMF554R3200FKEB is the direct substitute for the obsolete CMF554R3200FKBF. Both parts are manufactured by Vishay Dale within the CMF series and share identical electrical and mechanical specifications. The substitute part is currently in active production status, ensuring supply chain availability.

The only functional difference between the two parts is the packaging format: the main part is supplied in Bulk packaging, while the substitute is supplied in Tape & Reel (TR) format. This packaging variation does not affect component performance, electrical characteristics, or circuit compatibility. The component itself remains unchanged.

For applications requiring the CMF554R3200FKBF, the CMF554R3200FKEB provides full electrical and mechanical equivalence. Selection between these parts should be based on procurement requirements and assembly process compatibility with the available packaging format.

Frequently Asked Questions (FAQ)

Q: Are the CMF554R3200FKBF and CMF554R3200FKEB electrically identical?

A: Yes. Both parts have identical resistance values (4.32 Ohms), tolerance (±1%), power rating (0.5W), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 175°C). They are electrically interchangeable.

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

A: The parts differ only in packaging format. The CMF554R3200FKBF is supplied in Bulk packaging, while the CMF554R3200FKEB is supplied in Tape & Reel (TR) format. The actual resistor components are identical.

Q: Can I use the CMF554R3200FKEB as a direct replacement in my circuit?

A: Yes. The CMF554R3200FKEB is a direct substitute for the CMF554R3200FKBF. All electrical and mechanical parameters are identical, and the component will function identically in any circuit application.

Q: Why is the CMF554R3200FKBF listed as obsolete?

A: The CMF554R3200FKBF is classified as obsolete by the manufacturer. The CMF554R3200FKEB, which is in active production status, provides the same functionality and specifications.

Q: Does packaging format affect component performance?

A: No. Packaging format (Bulk versus Tape & Reel) affects only the delivery and handling method. The resistor component itself is identical, and performance in circuit applications is unchanged.

Q: Are there any compliance differences between these parts?

A: Both parts share the same base product number (CMF55) and are part of the same Vishay Dale CMF series. Compliance characteristics are determined by the component specifications, which are identical between the two parts.

Q: Can I mix Bulk and Tape & Reel packaged parts in the same assembly?

A: Yes. Since the components are electrically and mechanically identical, they can be used interchangeably in circuit applications regardless of packaging format.