CMF55249K00BERE Equivalent & Substitute Parts

Part Overview

The CMF55249K00BERE is a 249 kOhm ±0.1% metal film axial through-hole resistor rated at 0.5W (1/2W) manufactured by Vishay Dale. This component is classified as Active product status and features flame retardant coating with moisture resistance suitable for precision applications requiring tight tolerance specifications. Substitute parts are identified when packaging format differs while maintaining identical electrical and mechanical parameters, enabling procurement flexibility across supply chain variations.

Substiute Parts

CMF55249K00BERE

Vishay DaleIn Stock: 1138CMF55249K00BERE Datasheet

Current PartRFQ

CMF55249K00BEEB

Vishay DaleIn Stock: 4614CMF55249K00BEEB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between CMF55249K00BERE and CMF55249K00BEEB is based on electrical and mechanical parameter equivalence. Both parts share identical resistance value (249 kOhms), tolerance (±0.1%), power rating (0.5W), composition (metal film), temperature coefficient (±25ppm/°C), operating temperature range (-55°C to 175°C), package type (axial), physical dimensions (0.090" Dia x 0.240" L), and feature set (flame retardant coating, moisture resistant, safety). The sole differentiating factor is packaging format: CMF55249K00BERE is supplied in Tape & Reel (TR) configuration, while CMF55249K00BEEB is supplied in Cut Tape (CT) configuration. Both formats contain the identical component with no electrical or mechanical differences.

Parameter Comparison

Engineering Selection Recommendations

Both CMF55249K00BERE and CMF55249K00BEEB are Active status components suitable for direct substitution based on electrical and mechanical equivalence. Selection between these parts should be determined by packaging requirements and regulatory compliance needs. CMF55249K00BEEB offers ROHS3 compliance and REACH unaffected status, providing advantages for applications subject to environmental regulations. CMF55249K00BERE in Tape & Reel format is appropriate for high-volume automated assembly processes, while CMF55249K00BEEB in Cut Tape format accommodates lower-volume or manual assembly workflows.

Frequently Asked Questions (FAQ)

Q: Can CMF55249K00BEEB replace CMF55249K00BERE in my circuit design? A: Yes. Both parts are electrically and mechanically identical with 249 kOhms resistance, ±0.1% tolerance, 0.5W power rating, and identical physical dimensions. Substitution is valid from a functional standpoint.

Q: What is the difference between Tape & Reel and Cut Tape packaging? A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, optimized for high-speed automated pick-and-place assembly. Cut Tape (CT) packaging supplies components on tape segments cut to specific lengths, suitable for lower-volume or manual assembly operations. The component itself is identical.

Q: Does the RoHS compliance difference affect circuit performance? A: No. RoHS compliance relates to material composition and environmental regulations, not electrical performance. Both parts deliver identical electrical characteristics. CMF55249K00BEEB's ROHS3 compliance may be required for specific regulatory jurisdictions or customer specifications.

Q: Are the physical dimensions identical between both parts? A: Yes. Both CMF55249K00BERE and CMF55249K00BEEB measure 0.090" diameter by 0.240" length (2.29mm x 6.10mm) and are fully interchangeable in PCB layouts and mechanical assemblies.

Q: Which part should I select for new designs? A: Selection depends on assembly process and regulatory requirements. For automated high-volume production, CMF55249K00BERE (Tape & Reel) is standard. For applications requiring ROHS3 and REACH compliance, CMF55249K00BEEB (Cut Tape) is appropriate.