MF1/4DCT52R1540F Equivalent & Substitute Parts

Part Overview

The MF1/4DCT52R1540F is a 154 Ohms ±1% 0.25W through-hole resistor manufactured by KOA Speer Electronics, Inc. This metal film axial resistor is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently in active production status with 1,073 pieces available in stock. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and compliance certifications align with the original component requirements.

Substiute Parts

MF1/4DCT52R1540F

KOA Speer Electronics, Inc.In Stock: 1152MF1/4DCT52R1540F Datasheet

Current PartRFQ

MFR-25FBF52-154R

YAGEOIn Stock: 5061MFR-25FBF52-154R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MF1/4DCT52R1540F are identified based on the following critical parameters:

• Resistance value: 154 Ohms (exact match required)
• Tolerance: ±1% (ensures precision equivalent to original)
• Power rating: 0.25W / 1/4W (functional equivalence)
• Composition: Metal Film (maintains electrical characteristics)
• Package: Axial (mechanical compatibility with PCB layout)
• Temperature coefficient: ±100ppm/°C (thermal stability match)
• Operating temperature range: -55°C to 155°C (environmental compatibility)
• Termination count: 2 (electrical interface compatibility)
• Compliance: ROHS3 Compliant (regulatory alignment)

The MFR-25FBF52-154R from YAGEO meets all these criteria and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the MF1/4DCT52R1540F and MFR-25FBF52-154R are active production components with identical electrical and thermal specifications. Selection between these parts may be based on:

• Availability: MFR-25FBF52-154R has 4,951 pieces in stock versus 1,073 pieces for MF1/4DCT52R1540F
• Packaging format: MF1/4DCT52R1540F is supplied in Cut Tape (CT); MFR-25FBF52-154R is supplied in Bulk
• Mechanical dimensions: MF1/4DCT52R1540F measures 0.091" Dia × 0.248" L (2.30mm × 6.30mm); MFR-25FBF52-154R measures 0.094" Dia × 0.248" L (2.40mm × 6.30mm)

Both parts maintain ROHS3 compliance, REACH unaffected status, and EAR99 export classification. The slight dimensional difference in diameter (0.003" / 0.10mm) does not affect electrical performance or standard PCB mounting practices.

Frequently Asked Questions (FAQ)

Q: Can MFR-25FBF52-154R replace MF1/4DCT52R1540F in automotive applications?

A: Yes. Both parts meet identical electrical specifications (154 Ohms ±1%, 0.25W, ±100ppm/°C) and operate across the same temperature range (-55°C to 155°C). The MF1/4DCT52R1540F carries AEC-Q200 automotive qualification; the MFR-25FBF52-154R does not list this certification in the provided data. Verify AEC-Q200 requirement with your design specification before substitution.

Q: Are there mechanical compatibility concerns between these parts?

A: Both resistors use axial package configuration with identical length (0.248" / 6.30mm). The diameter difference is 0.003" (0.10mm), which does not impact standard through-hole PCB mounting or lead spacing. Verify PCB layout tolerances if dimensional precision is critical to your application.

Q: Do both parts comply with environmental and export regulations?

A: Yes. Both MF1/4DCT52R1540F and MFR-25FBF52-154R are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes. Both share the same HTSUS code (8533.21.0090).

Q: What is the difference between Cut Tape and Bulk packaging?

A: Cut Tape (CT) packaging supplies components on individual tape segments, suitable for smaller quantities and automated pick-and-place systems. Bulk packaging supplies loose components, typically used for higher-volume manufacturing. Select packaging based on your assembly process requirements and order quantity.