MMF25SFRE1R5 Equivalent & Substitute Parts

Part Overview

The MMF25SFRE1R5 is a 1.5 Ohms ±1% 0.25W Metal Film Chip Resistor in MELF 0204 package format, manufactured by YAGEO. This component is actively produced and widely used in precision analog circuits, measurement equipment, and applications requiring stable resistance values with low temperature coefficients. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the MELF 0204 form factor, ensuring direct replacement capability in existing designs.

Substiute Parts

MMF25SFRE1R5

YAGEOIn Stock: 1032MMF25SFRE1R5 Datasheet

Current PartRFQ

MMA02040C1508FB300

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 3899MMA02040C1508FB300 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MMF25SFRE1R5 is based on strict electrical and mechanical compatibility criteria. The substitute part MMA02040C1508FB300 qualifies as an equivalent because it maintains the following critical parameters:

• Identical resistance value: 1.5 Ohms
• Identical tolerance: ±1%
• Identical temperature coefficient: ±50ppm/°C
• Identical operating temperature range: -55°C to 155°C
• Identical package format: MELF 0204
• Identical number of terminations: 2
• Identical RoHS3 compliance status
• Identical MSL rating: 1 (Unlimited)

The substitute part features a higher power rating (0.4W vs. 0.25W) and thin film composition with anti-sulfur treatment and AEC-Q200 automotive qualification. These enhancements provide superior performance margins without compromising compatibility in applications designed for the original 0.25W specification.

Parameter Comparison

Engineering Selection Recommendations

The MMA02040C1508FB300 is a direct substitute for the MMF25SFRE1R5 in applications where component availability or supply chain requirements necessitate an alternative source. Both parts maintain identical electrical specifications and RoHS3 compliance. The substitute part's enhanced power rating (0.4W) and thin film construction with anti-sulfur treatment provide additional performance margin in thermal stress environments. The AEC-Q200 automotive qualification of the substitute part indicates enhanced reliability screening and is suitable for automotive and industrial applications. Dimensional variance (0.138" vs. 0.142" length) is within standard MELF 0204 tolerance and does not affect PCB layout or mechanical assembly.

Frequently Asked Questions (FAQ)

Q: Can MMA02040C1508FB300 directly replace MMF25SFRE1R5 in existing designs?

A: Yes. Both parts share identical resistance (1.5 Ohms), tolerance (±1%), temperature coefficient (±50ppm/°C), operating temperature range (-55°C to 155°C), and MELF 0204 package format. The substitute part's higher power rating and thin film composition do not compromise compatibility.

Q: What is the difference between Metal Film and Thin Film composition?

A: Metal Film and Thin Film are both precision resistor technologies. Thin Film typically offers tighter tolerances and better temperature stability in some applications. Both compositions are suitable for the specified electrical parameters in this comparison.

Q: Does the 0.4W power rating of the substitute part affect circuit performance?

A: No. The higher power rating provides additional thermal margin and does not alter electrical behavior. The substitute part will perform identically to the original in circuits designed for 0.25W operation.

Q: Are there dimensional compatibility concerns?

A: The length difference (0.138" vs. 0.142") is within standard MELF 0204 package tolerance. Both parts are mechanically compatible with standard MELF 0204 footprints and do not require PCB redesign.

Q: What does AEC-Q200 qualification mean?

A: AEC-Q200 is an automotive industry standard qualification that certifies component reliability through enhanced screening and testing. This qualification is beneficial for automotive, industrial, and high-reliability applications but does not affect compatibility in non-automotive designs.