CMF5524K300FKBF Equivalent & Substitute Parts

Part Overview

The CMF5524K300FKBF is a 24.3 kOhms ±1% metal film through-hole resistor rated at 0.5W (1/2W) in axial package configuration. Manufactured by Vishay Dale, this component features flame retardant coating and moisture-resistant properties suitable for industrial and commercial applications. The part is currently active in production. Substitute parts may be required due to packaging availability, compliance requirements, or inventory constraints in specific distribution channels.

Substiute Parts

CMF5524K300FKBF

Vishay DaleIn Stock: 1159CMF5524K300FKBF Datasheet

Current PartRFQ

CMF5524K300FHEB

Vishay DaleIn Stock: 8316CMF5524K300FHEB Datasheet

UpgradeRFQ

RNF12FTD24K3

Stackpole Electronics IncIn Stock: 5234RNF12FTD24K3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMF5524K300FKBF is determined by the following critical parameters:

• Resistance value: 24.3 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Composition: Metal Film (exact match required)
• Package: Axial through-hole (exact match required)
• Number of terminations: 2 (exact match required)

Two substitute parts meet these criteria:

1. CMF5524K300FHEB (Vishay Dale) – Direct upgrade variant with improved temperature coefficient and enhanced RoHS3 compliance
2. RNF12FTD24K3 (Stackpole Electronics Inc) – Cross-manufacturer equivalent with identical electrical specifications

Parameter Comparison

Engineering Selection Recommendations

CMF5524K300FHEB is the preferred upgrade path when RoHS3 compliance and REACH unaffected status are required. This variant maintains identical electrical performance while offering improved temperature coefficient stability (±50ppm/°C versus ±100ppm/°C) and is available in cut tape packaging for automated assembly processes.

RNF12FTD24K3 provides cross-manufacturer equivalence with full RoHS3 and REACH compliance. Selection of this part is appropriate when supply chain diversification or Stackpole-specific procurement requirements are in effect. Note the operating temperature maximum of 155°C versus 175°C for Vishay variants; applications requiring operation above 155°C must use CMF series parts.

The original CMF5524K300FKBF remains suitable for applications where RoHS non-compliance is acceptable and bulk packaging is preferred.

Frequently Asked Questions (FAQ)

Q: Can CMF5524K300FHEB be used as a direct replacement for CMF5524K300FKBF?

A: Yes. Both parts share identical resistance (24.3 kOhms), tolerance (±1%), power rating (0.5W), composition (metal film), and axial package configuration. The CMF5524K300FHEB offers superior temperature coefficient performance and improved compliance status.

Q: What is the primary difference between CMF5524K300FHEB and RNF12FTD24K3?

A: Both are electrically equivalent at 24.3 kOhms ±1% 0.5W. The CMF5524K300FHEB is manufactured by Vishay Dale with operating temperature to 175°C, while RNF12FTD24K3 is manufactured by Stackpole Electronics with operating temperature to 155°C. Temperature coefficient differs: ±50ppm/°C (CMF upgrade) versus ±100ppm/°C (RNF).

Q: Are there physical dimension differences between these parts?

A: CMF5524K300FKBF and CMF5524K300FHEB share identical dimensions (0.090" Dia × 0.240" L / 2.29mm × 6.10mm). RNF12FTD24K3 has larger dimensions (0.108" Dia × 0.344" L / 2.75mm × 8.75mm). PCB layout and mechanical clearance must accommodate the larger RNF package.

Q: Which substitute part should be selected for new designs?

A: Selection depends on compliance requirements and thermal performance needs. For RoHS3 and REACH compliance with superior temperature stability, use CMF5524K300FHEB. For cross-manufacturer supply chain flexibility within the same compliance framework, use RNF12FTD24K3. Verify operating temperature requirements do not exceed 155°C when using RNF parts.

Q: Is packaging format (Bulk vs. Cut Tape) a substitution factor?

A: Packaging format affects procurement and assembly processes but does not impact electrical or mechanical compatibility. Bulk packaging (CMF5524K300FKBF) suits manual assembly or small-volume builds. Cut tape packaging (CMF5524K300FHEB, RNF12FTD24K3) is optimized for automated pick-and-place assembly.