MF1/4DCT52R5232F Equivalent & Substitute Parts

Part Overview

The MF1/4DCT52R5232F is a 52.3 kOhms ±1% metal film through-hole resistor rated at 0.25W (1/4W) in axial package configuration. Manufactured by KOA Speer Electronics, Inc., this component is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently in active production status with 757 units available in inventory. Identifying equivalent substitute parts is necessary to ensure supply chain continuity, optimize procurement costs, and maintain design flexibility across manufacturing environments.

Substiute Parts

MF1/4DCT52R5232F

KOA Speer Electronics, Inc.In Stock: 781MF1/4DCT52R5232F Datasheet

Current PartRFQ

MFR-25FBF52-52K3

YAGEOIn Stock: 11996MFR-25FBF52-52K3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MF1/4DCT52R5232F is determined by strict equivalence across the following critical parameters:

• Resistance value: 52.3 kOhms (exact match required)
• Tolerance: ±1% (no deviation permitted)
• Power rating: 0.25W, 1/4W (functional equivalence)
• Composition: Metal Film (electrical performance equivalence)
• Package: Axial through-hole (mechanical and thermal equivalence)
• Temperature coefficient: ±100ppm/°C (stability equivalence)
• Operating temperature range: -55°C to 155°C (environmental equivalence)
• Termination count: 2 (circuit interface equivalence)
• RoHS compliance: ROHS3 Compliant (regulatory equivalence)

The MFR-25FBF52-52K3 manufactured by YAGEO meets all substitution criteria and is classified as a direct equivalent part.

Parameter Comparison

Engineering Selection Recommendations

Both the MF1/4DCT52R5232F and MFR-25FBF52-52K3 are active production components with full regulatory compliance. Selection between these parts should be based on:

• Inventory availability and lead time requirements
• Procurement cost optimization
• Existing supplier relationships and qualification status
• Physical dimensions: The MFR-25FBF52-52K3 exhibits a marginal diameter increase (0.094" vs 0.091"), which remains within typical PCB layout tolerances for axial through-hole components
• Packaging format: The KOA part is supplied in Cut Tape (CT), while the YAGEO part is supplied in Bulk format

Both components satisfy identical electrical specifications, temperature performance, and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the MFR-25FBF52-52K3 be used as a direct replacement for the MF1/4DCT52R5232F?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical resistance values, tolerance, power rating, temperature coefficient, and operating temperature range. The minor dimensional difference (0.003" diameter variance) does not affect circuit performance or PCB compatibility for standard through-hole layouts.

Q: What is the significance of the ±1% tolerance specification?

A: The ±1% tolerance indicates that the actual resistance value will fall within the range of 51.727 kOhms to 52.873 kOhms. This tight tolerance is critical for precision analog circuits and signal conditioning applications. Both substitute parts maintain this specification.

Q: Are there differences in automotive qualification between these parts?

A: The MF1/4DCT52R5232F carries explicit AEC-Q200 automotive qualification. The MFR-25FBF52-52K3 does not list AEC-Q200 in its feature set. For applications requiring automotive-grade components, the KOA part is the specified choice. For non-automotive applications, both parts are functionally equivalent.

Q: How do the packaging formats affect component handling?

A: Cut Tape (CT) packaging provides individual component accessibility and is suitable for automated pick-and-place assembly. Bulk packaging requires manual sorting and is typically used for manual assembly or reel-based automated processes. Packaging format selection depends on manufacturing process requirements, not electrical performance.

Q: What is the practical impact of the temperature coefficient specification?

A: The ±100ppm/°C temperature coefficient means the resistance value will change by approximately 0.01% per degree Celsius of temperature change. Across the full operating range (-55°C to 155°C), this results in a maximum resistance drift of approximately ±1%. Both parts exhibit identical temperature stability.