SMM02040C6801FB300 Equivalent & Substitute Parts

Part Overview

The SMM02040C6801FB300 is a 6.8 kOhms ±1% 0.25W thin film chip resistor in MELF 0204 package format, manufactured by Vishay Beyschlag/Draloric/BC Components. This component is designed for automotive applications with AEC-Q200 qualification, anti-sulfur coating, and pulse withstanding capability. The part is currently active in production with 3537 units in stock. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and compliance certifications align with the original component requirements.

Substiute Parts

SMM02040C6801FB300

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 3630SMM02040C6801FB300 Datasheet

Current PartRFQ

SMM02040C6801FB000

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 9657SMM02040C6801FB000 Datasheet

DirectRFQ

MMA02040C6801FB300

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 10503MMA02040C6801FB300 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMM02040C6801FB300 are qualified based on the following criteria:

Electrical Parameters (Must Match):

• Resistance value: 6.8 kOhms
• Tolerance: ±1%
• Temperature coefficient: ±50ppm/°C
• Composition: Thin Film

Mechanical Parameters (Must Match):

• Package / Case: MELF 0204
• Physical dimensions: 0.055" Dia x 0.142" L (1.40mm x 3.60mm)
• Number of terminations: 2

Compliance & Ratings (Must Match or Exceed):

• AEC-Q200 automotive qualification
• Anti-sulfur coating
• RoHS3 compliance
• MSL 1 rating

Allowable Variation:

• Power rating may be equal or higher (0.25W minimum)
• Operating temperature range may be equal or extended
• Product status must be Active

Parameter Comparison

Engineering Selection Recommendations

SMM02040C6801FB000 is a direct electrical and mechanical equivalent to the SMM02040C6801FB300. Both components share identical resistance, tolerance, power rating, package format, and temperature coefficient specifications. Both maintain AEC-Q200 automotive qualification, anti-sulfur coating, and pulse withstanding capability. The primary distinction is packaging designation (FB300 vs. FB000), which does not affect functional performance. This part is suitable for direct substitution with higher inventory availability (9634 units).

MMA02040C6801FB300 qualifies as a substitute with enhanced specifications. It maintains all critical electrical parameters (6.8 kOhms, ±1%, ±50ppm/°C) and mechanical compatibility (MELF 0204 package). The MMA series offers increased power rating (0.4W versus 0.25W) and extended operating temperature range (-55°C ~ 155°C versus -55°C ~ 125°C). AEC-Q200 automotive qualification and anti-sulfur coating are retained. The higher power rating and extended temperature range provide design margin for applications requiring thermal headroom. This part is classified as manufacturer-recommended and carries the highest inventory level (10410 units).

Frequently Asked Questions (FAQ)

Q: Can SMM02040C6801FB000 replace SMM02040C6801FB300 in all applications?

A: Yes. Both parts are electrically and mechanically identical with matching resistance (6.8 kOhms), tolerance (±1%), power rating (0.25W), package format (MELF 0204), and automotive qualification (AEC-Q200). The packaging designation difference does not affect functional compatibility.

Q: What is the advantage of using MMA02040C6801FB300 instead of the original part?

A: The MMA02040C6801FB300 provides higher power dissipation capability (0.4W versus 0.25W) and extended operating temperature range (-55°C ~ 155°C versus -55°C ~ 125°C). These enhanced specifications offer additional design margin for thermal and environmental stress conditions while maintaining all other electrical and compliance requirements.

Q: Are all substitute parts AEC-Q200 qualified?

A: Yes. All listed substitute parts carry AEC-Q200 automotive qualification, anti-sulfur coating, and ROHS3 compliance, meeting the same regulatory and reliability standards as the original SMM02040C6801FB300.

Q: Does the MELF 0204 package remain consistent across all substitutes?

A: Yes. All substitute parts maintain the MELF 0204 package format with identical physical dimensions (0.055" Dia x 0.142" L / 1.40mm x 3.60mm), ensuring mechanical compatibility with existing PCB layouts and assembly processes.

Q: What is the difference between SMM and MMA series designations?

A: The SMM series represents standard automotive thin film resistors, while the MMA series is designated as Professional grade with enhanced power rating and extended temperature range. Both series meet AEC-Q200 requirements and are suitable for automotive applications.