SMM02040D2002DB300 Equivalent & Substitute Parts

Part Overview

The SMM02040D2002DB300 is a 20 kOhms ±0.5% 0.25W thin film chip resistor in MELF 0204 package 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 1031 pieces in stock.

Substitute parts are identified when electrical and mechanical parameters remain compatible within the allowed tolerances for this product category. The primary driver for substitution in this case is tolerance improvement, where higher precision variants maintain all other critical specifications.

Substiute Parts

SMM02040D2002DB300

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1107SMM02040D2002DB300 Datasheet

Current PartRFQ

SMM02040D2002BB300

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 9144SMM02040D2002BB300 Datasheet

UpgradeRFQ

MMA02040D2002BB300

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 5728MMA02040D2002BB300 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMM02040D2002DB300 is determined by the following criteria:

Mandatory Matching Parameters:

• Resistance value: 20 kOhms
• Power rating: 0.25W (1/4W)
• Package type: MELF 0204
• Temperature coefficient: ±25ppm/°C
• Operating temperature range: -55°C to 125°C
• Composition: Thin Film
• Automotive qualification: AEC-Q200
• Anti-sulfur coating: Required
• RoHS compliance: ROHS3 Compliant

Allowable Variation:

• Tolerance: May be equal to or tighter than ±0.5%

The identified substitutes meet all mandatory parameters. The upgrade path involves tolerance improvement from ±0.5% to ±0.1%, which represents a tighter specification while maintaining full compatibility with the original design requirements.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are direct functional equivalents to the SMM02040D2002DB300 with improved tolerance specifications.

SMM02040D2002BB300 is an upgrade variant from the same SMM0204 series, offering ±0.1% tolerance in place of the original ±0.5%. This part maintains identical electrical and mechanical characteristics while providing enhanced precision. It carries full AEC-Q200 automotive qualification and ROHS3 compliance with higher inventory availability (9093 pieces).

MMA02040D2002BB300 is the manufacturer-recommended precision alternative from the MMA series. It delivers the same ±0.1% tolerance specification and meets all automotive and environmental compliance requirements. This variant is designated as part of the precision product line with adequate stock levels (5660 pieces).

Both substitutes are active production parts suitable for direct replacement in applications where the original ±0.5% tolerance is acceptable or where improved precision is beneficial. Selection between the two upgrade options depends on design requirements and supply chain preferences, as both meet identical electrical and mechanical specifications.

Frequently Asked Questions (FAQ)

Q: Can SMM02040D2002BB300 or MMA02040D2002BB300 be used as direct replacements for SMM02040D2002DB300?

A: Yes. Both substitute parts maintain identical resistance value, power rating, package type, temperature coefficient, and operating temperature range. The tighter tolerance specification (±0.1% versus ±0.5%) represents an improvement that does not compromise compatibility.

Q: What is the difference between SMM02040D2002BB300 and MMA02040D2002BB300?

A: Both parts share identical electrical specifications (20 kOhms ±0.1%, 0.25W, MELF 0204). The primary distinction is the product series designation: SMM0204 versus MMA (Precision). Both are manufactured by Vishay Beyschlag/Draloric/BC Components and carry equivalent AEC-Q200 automotive qualification.

Q: Are all three parts MELF 0204 package compatible?

A: Yes. All three parts use the MELF 0204 package with identical dimensions (0.055" Dia x 0.142" L / 1.40mm x 3.60mm) and two terminations. They are mechanically and electrically interchangeable at the board level.

Q: Do the substitute parts maintain AEC-Q200 automotive qualification?

A: Yes. Both SMM02040D2002BB300 and MMA02040D2002BB300 carry full AEC-Q200 qualification, anti-sulfur coating, and pulse withstanding capability identical to the original part.

Q: What is the tolerance improvement significance?

A: The upgrade from ±0.5% to ±0.1% tolerance reduces the maximum resistance deviation from ±100 ohms to ±20 ohms at the 20 kOhms nominal value. This improvement is applicable in precision analog circuits, measurement instrumentation, and applications with tighter circuit performance requirements.

Q: Are moisture sensitivity and RoHS compliance identical across all three parts?

A: Yes. All three parts are MSL 1 (Unlimited) rated and ROHS3 compliant, with identical environmental and regulatory compliance profiles.