MMF204FRE33K2 Equivalent & Substitute Parts

Part Overview

The MMF204FRE33K2 is a 33.2 kOhms ±1% metal film chip resistor in MELF 0204 package format, rated for 0.4W power dissipation. This component is designed for precision applications requiring stable resistance values across temperature ranges from -55°C to 155°C. The part is currently active in production and maintains full RoHS3 compliance. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and regulatory certifications align with the original component requirements.

Substiute Parts

MMF204FRE33K2

YAGEOIn Stock: 739MMF204FRE33K2 Datasheet

Current PartRFQ

MMA02040C3322FB300

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 6264MMA02040C3322FB300 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MMF204FRE33K2 is determined by the following critical parameters:

• Resistance value: 33.2 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.4W minimum (2/5W specification)
• Package format: MELF 0204 (mechanical and electrical compatibility)
• Temperature coefficient: ±50ppm/°C (thermal stability requirement)
• Operating temperature range: -55°C to 155°C (full range coverage)
• Regulatory compliance: RoHS3 and REACH status alignment

The MMA02040C3322FB300 from Vishay Beyschlag/Draloric/BC Components meets all substitution criteria. While the substitute employs thin film composition with anti-sulfur and AEC-Q200 automotive qualification features, the core electrical parameters and package specifications remain equivalent to the original metal film component.

Parameter Comparison

Engineering Selection Recommendations

Both components maintain active product status and full regulatory compliance under RoHS3 and REACH frameworks. The MMF204FRE33K2 and MMA02040C3322FB300 are electrically and mechanically interchangeable for applications requiring 33.2 kOhms ±1% resistance at 0.4W power dissipation within the -55°C to 155°C operating window.

The MMA02040C3322FB300 includes AEC-Q200 automotive qualification and anti-sulfur features, which provide additional environmental protection in corrosive or automotive-grade applications. The dimensional variance of 0.004" (0.10mm) in length falls within standard MELF 0204 package tolerances and does not affect PCB layout compatibility.

Selection between these components should be based on application-specific requirements for automotive qualification and environmental resistance, not on electrical performance, as both deliver identical electrical characteristics.

Frequently Asked Questions (FAQ)

Q: Can the MMA02040C3322FB300 directly replace the MMF204FRE33K2 in existing designs?

A: Yes. Both components share identical resistance value (33.2 kOhms), tolerance (±1%), power rating (0.4W), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C to 155°C). The MELF 0204 package dimensions are equivalent within standard tolerances.

Q: What is the difference between metal film and thin film composition in these parts?

A: The MMF204FRE33K2 uses metal film construction, while the MMA02040C3322FB300 uses thin film with anti-sulfur treatment. Both compositions deliver the specified ±1% tolerance and ±50ppm/°C temperature coefficient. Thin film with anti-sulfur provides enhanced resistance to corrosive environments.

Q: Does the AEC-Q200 rating on the substitute part affect compatibility?

A: No. AEC-Q200 is an automotive qualification standard that indicates additional testing and reliability assurance. It does not alter electrical performance or package compatibility. The substitute part remains suitable for non-automotive applications.

Q: Are there dimensional concerns with the 0.004" length difference?

A: No. The dimensional variance (0.138" vs 0.142" length) is within standard MELF 0204 package tolerances and does not impact PCB footprint, soldering, or mechanical assembly.

Q: What is MSL 1 rating and why does it matter?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture baking requirements. Both components carry this rating, meaning they can be stored and handled under standard conditions without special moisture control procedures.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the MMF204FRE33K2 and MMA02040C3322FB300 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and distribution.