CMF552R1510FKBF Equivalent & Substitute Parts

Part Overview

The CMF552R1510FKBF is a 2.151 Ohms ±1% 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 in compact axial packages. The part is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and component procurement.

Substiute Parts

CMF552R1510FKBF

Vishay DaleIn Stock: 772CMF552R1510FKBF Datasheet

Current PartRFQ

CMF552R1500FKEB

Vishay DaleIn Stock: 970CMF552R1500FKEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CMF552R1510FKBF is determined by equivalence across the following critical parameters:

Electrical Parameters: Resistance value, tolerance, power rating, temperature coefficient, and operating temperature range must remain within acceptable circuit design margins. The substitute part must maintain ±1% tolerance and 0.5W power rating to ensure functional compatibility.

Mechanical Parameters: Package type (axial through-hole), physical dimensions (0.090" Dia x 0.240" L), and termination count (2) must match to ensure PCB compatibility and assembly process alignment.

Material & Composition: Metal film construction with flame retardant coating and moisture resistance properties must be preserved to maintain environmental performance and safety certifications.

Compliance & Status: Active product status with current RoHS3 compliance is preferred over obsolete status to ensure long-term availability and regulatory alignment.

The CMF552R1500FKEB qualifies as a substitute based on matching all critical parameters within acceptable engineering tolerances.

Parameter Comparison

Engineering Selection Recommendations

The CMF552R1500FKEB is the direct substitute for the obsolete CMF552R1510FKBF. Selection of this substitute is based on the following engineering criteria:

Electrical Equivalence: The resistance values 2.151 Ohms and 2.15 Ohms are functionally equivalent within the ±1% tolerance specification. Both parts operate identically in circuit applications requiring this resistance range.

Mechanical Compatibility: Identical axial package dimensions and termination configuration ensure direct PCB footprint compatibility without layout modifications.

Environmental & Safety Performance: Both parts maintain identical temperature coefficient, operating temperature range, and protective features (flame retardant coating, moisture resistance). No performance degradation occurs with substitution.

Regulatory Compliance: The substitute part (CMF552R1500FKEB) carries RoHS3 compliance status, providing improved regulatory alignment compared to the non-compliant main part. Both parts are REACH Affected and classified as EAR99.

Product Availability: The substitute part is currently active with 943 pieces in stock, ensuring reliable procurement compared to the obsolete status of the main part.

Frequently Asked Questions (FAQ)

Q: Can CMF552R1500FKEB be used as a direct replacement for CMF552R1510FKBF?

A: Yes. The CMF552R1500FKEB is a direct substitute. Both parts share identical electrical specifications (2.15 Ohms ±1%, 0.5W), temperature characteristics (±100ppm/°C, -55°C to 175°C), mechanical dimensions (0.090" Dia x 0.240" L), and protective features. The resistance values differ by 0.001 Ohms, which is within the ±1% tolerance band and functionally equivalent for circuit operation.

Q: Are there any PCB layout or assembly considerations when substituting these parts?

A: No layout modifications are required. Both parts use identical axial through-hole packages with matching physical dimensions. Assembly processes, lead spacing, and mounting procedures remain unchanged.

Q: What is the difference between the Bulk and Tape & Reel packaging options?

A: Bulk packaging (CMF552R1510FKBF) is supplied loose for manual handling and small-quantity applications. Tape & Reel packaging (CMF552R1500FKEB) is supplied on continuous tape for automated assembly equipment. The electrical and mechanical specifications are identical; packaging format selection depends on production volume and assembly methodology.

Q: Does the RoHS3 compliance of the substitute part affect circuit performance?

A: No. RoHS3 compliance indicates improved environmental and regulatory alignment but does not alter electrical performance. The substitute part maintains all functional characteristics of the original part while meeting current regulatory requirements.

Q: Are the temperature coefficients identical between these parts?

A: Yes. Both parts specify ±100ppm/°C temperature coefficient and operate across the identical temperature range of -55°C to 175°C. Thermal performance is equivalent.

Q: What is the resistance tolerance impact when using the substitute part?

A: Both parts carry ±1% tolerance. The nominal resistance difference (2.151 Ohms vs. 2.15 Ohms) represents a 0.047% variation, well within the ±1% tolerance specification. This variation is negligible for circuit design purposes.