SMM02040C3482FB300 Equivalent & Substitute Parts

Part Overview

The SMM02040C3482FB300 is a 34.8 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 1036 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this resistor category.

Substiute Parts

SMM02040C3482FB300

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1059SMM02040C3482FB300 Datasheet

Current PartRFQ

MMA02040C3482FB300

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 3759MMA02040C3482FB300 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SMM02040C3482FB300 is determined by the following critical parameters:

• Resistance value: 34.8 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package format: MELF 0204 (mechanical and electrical compatibility)
• Composition: Thin Film (performance characteristics)
• Temperature coefficient: ±50ppm/°C (stability specification)
• Automotive qualification: AEC-Q200 (compliance requirement)
• RoHS compliance: ROHS3 (regulatory requirement)

The MMA02040C3482FB300 qualifies as a substitute based on matching resistance, tolerance, package, composition, temperature coefficient, AEC-Q200 rating, and RoHS3 compliance. The higher power rating (0.4W vs. 0.25W) and extended operating temperature range (-55°C ~ 155°C vs. -55°C ~ 125°C) of the substitute part provide additional design margin without compromising compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the SMM02040C3482FB300 and MMA02040C3482FB300 are active production parts from the same manufacturer with identical electrical specifications and package compatibility. Selection between these parts should be based on application power dissipation requirements and thermal operating conditions. The MMA02040C3482FB300 offers higher power handling capability (0.4W vs. 0.25W) and extended upper temperature rating (155°C vs. 125°C), making it suitable for applications with elevated thermal stress. Both parts maintain AEC-Q200 automotive qualification and ROHS3 compliance, ensuring regulatory and quality standards are met in either configuration.

Frequently Asked Questions (FAQ)

Q: Can the MMA02040C3482FB300 be used as a direct replacement for the SMM02040C3482FB300?

A: Yes. Both parts share identical resistance value (34.8 kOhms), tolerance (±1%), package format (MELF 0204), composition (thin film), temperature coefficient (±50ppm/°C), and automotive qualification (AEC-Q200). The substitute part has higher power rating and extended temperature range, which do not compromise compatibility.

Q: What are the key differences between these two parts?

A: The primary differences are power rating (0.25W vs. 0.4W) and maximum operating temperature (125°C vs. 155°C). The MMA02040C3482FB300 provides additional thermal margin and power dissipation capability while maintaining all other electrical and mechanical specifications.

Q: Are both parts RoHS compliant?

A: Yes. Both the SMM02040C3482FB300 and MMA02040C3482FB300 are ROHS3 compliant with moisture sensitivity level 1 (unlimited shelf life).

Q: Do both parts meet automotive standards?

A: Yes. Both parts carry AEC-Q200 automotive qualification and anti-sulfur coating, meeting automotive reliability and environmental requirements.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. Both parts use identical MELF 0204 package format with the same physical dimensions (0.055" Dia x 0.142" L / 1.40mm x 3.60mm) and two terminations, ensuring mechanical and electrical compatibility in PCB layouts designed for either part number.