MF1/4DC3R01F Equivalent & Substitute Parts

Part Overview

The MF1/4DC3R01F is a 3.01 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 active in production with 947 pieces in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required for component procurement, inventory management, or supply chain continuity.

Substiute Parts

MF1/4DC3R01F

KOA Speer Electronics, Inc.In Stock: 1025MF1/4DC3R01F Datasheet

Current PartRFQ

CFR-25JB-52-3R

YAGEOIn Stock: 7593CFR-25JB-52-3R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MF1/4DC3R01F is determined by the following critical parameters:

• Resistance Value: Nominal resistance must be 3 Ohms or 3.01 Ohms
• Power Rating: Must support 0.25W (1/4W) minimum
• Package Configuration: Axial through-hole format required
• Operating Temperature Range: Must cover -55°C to 155°C
• Compliance: RoHS3 compliance and REACH unaffected status required

The CFR-25JB-52-3R from YAGEO meets these core substitution criteria. While tolerance and temperature coefficient specifications differ, the part maintains functional equivalence within the allowed electrical and mechanical parameters for this resistor category.

Parameter Comparison

Engineering Selection Recommendations

Both the MF1/4DC3R01F and CFR-25JB-52-3R are active production parts with ROHS3 compliance and REACH unaffected status. Selection between these parts depends on application-specific tolerance and stability requirements. The MF1/4DC3R01F provides tighter tolerance (±1%) and lower temperature coefficient (±100ppm/°C), suitable for precision circuits. The CFR-25JB-52-3R offers broader tolerance (±5%) and higher temperature coefficient range (-500/+350ppm/°C), appropriate for general-purpose applications. Both parts maintain identical power ratings, operating temperature ranges, and axial through-hole package compatibility.

Frequently Asked Questions (FAQ)

Q: Can CFR-25JB-52-3R replace MF1/4DC3R01F in all applications?

A: Substitution is valid when circuit design tolerates ±5% resistance tolerance and -500/+350ppm/°C temperature coefficient variation. Applications requiring ±1% tolerance and ±100ppm/°C stability should use the original MF1/4DC3R01F specification.

Q: Are the physical dimensions compatible?

A: Both parts use axial through-hole packaging with 0.248" length. Diameter differs slightly (0.091" vs 0.094"), which does not affect PCB hole compatibility for standard 0.1" pitch through-hole designs.

Q: Do both parts meet automotive qualification requirements?

A: The MF1/4DC3R01F carries AEC-Q200 automotive qualification. The CFR-25JB-52-3R does not list automotive qualification in the provided specifications. Applications requiring AEC-Q200 compliance must use the MF1/4DC3R01F.

Q: What is the resistance value difference impact?

A: The MF1/4DC3R01F specifies 3.01 Ohms while CFR-25JB-52-3R specifies 3 Ohms. This 0.33% nominal difference, combined with tolerance ranges (±1% vs ±5%), results in overlapping acceptable resistance bands suitable for general circuit applications.

Q: Are both parts RoHS and REACH compliant?

A: Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.