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MMA02040C1821FB000
Vishay Beyschlag/Draloric/BC Components
RES 1.82K OHM 1% 2/5W MELF 0204
10206 Pcs New Original In Stock
1.82 kOhms ±1% 0.4W, 2/5W Chip Resistor MELF, 0204 Anti-Sulfur, Automotive AEC-Q200 Thin Film
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5.0 / 5.0
- (79 Ratings)
MMA02040C1821FB000
Product Overview
1068247
DiGi Electronics Part Number
MMA02040C1821FB000-DGManufacturer
Vishay Beyschlag/Draloric/BC Components
MMA02040C1821FB000
Description
RES 1.82K OHM 1% 2/5W MELF 0204Inventory
10206 Pcs New Original In Stock
1.82 kOhms ±1% 0.4W, 2/5W Chip Resistor MELF, 0204 Anti-Sulfur, Automotive AEC-Q200 Thin Film
CAD Models - PCB Symbols & Footprints
Quantity
Minimum 1
Minimum 1
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MMA02040C1821FB000 Technical Specifications
Category
Chip Resistor - Surface Mount
Packaging
Tape & Reel (TR)
Series
MMA - Professional
Product Status
Active
Resistance
1.82 kOhms
Tolerance
±1%
Power (Watts)
0.4W, 2/5W
Composition
Thin Film
Features
Anti-Sulfur, Automotive AEC-Q200
Temperature Coefficient
±50ppm/°C
Operating Temperature
-55°C ~ 155°C
Package / Case
MELF, 0204
Supplier Device Package
0204
Ratings
AEC-Q200
Size / Dimension
0.055" Dia x 0.142" L (1.40mm x 3.60mm)
Height - Seated (Max)
-
Number of Terminations
2
Failure Rate
-
Datasheet & Documents
HTML Datasheet
MMA02040C1821FB000-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8533.21.0040
Additional Information
Standard Package
10,000
Alternative Parts
View DetailsPART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
MMA02040C1821FB300
Vishay Beyschlag/Draloric/BC Components
12183
MMA02040C1821FB300-DG
0.0121
Direct
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Les données de tracking fournis par leur système sont détaillées et très utiles pour planifier mes activités.
de desembre 02, 2025
Service d'expédition très efficace, mon colis était bien emballé et sécurisé.
de desembre 02, 2025
Quick delivery and transparent tracking made the process enjoyable.
de desembre 02, 2025
Excellent packaging that kept everything intact and secure during transportation.
de desembre 02, 2025
Impressed by how quickly my order was dispatched and the promptness of their support.
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Frequently Asked Questions (FAQ)
Can the MMA02040C1821FB000 be used in high-vibration automotive applications, and how does its AEC-Q200 certification impact reliability in engine control modules?
Yes, the MMA02040C1821FB000 is qualified to AEC-Q200, making it suitable for high-vibration automotive environments such as engine control units (ECUs). Its robust thin film MELF construction provides superior mechanical stability and resistance to thermal shock compared to standard chip resistors. When designing with the MMA02040C1821FB000, ensure proper PCB layout with adequate pad sizing to handle mechanical stress, and avoid placing near high-stress board flex zones to maintain long-term reliability under constant vibration exposure.
What are the key thermal design considerations when operating the MMA02040C1821FB000 near its maximum rated temperature of 155°C?
When operating the MMA02040C1821FB000 near 155°C, it's critical to manage power dissipation derating—its 0.4W (2/5W) rating decreases above 70°C ambient. Ensure sufficient PCB copper land area for heat dissipation, avoid tight clustering with other heat-generating components, and consider airflow or thermal vias if operating in enclosed automotive or industrial enclosures. The ±50ppm/°C temperature coefficient ensures stable performance, but prolonged exposure near limits may accelerate aging; thus, maintain at least a 10–15°C safety margin if possible for long-life designs.
How does the anti-sulfur construction of the MMA02040C1821FB000 improve reliability in industrial sensing applications compared to standard thin film resistors?
The MMA02040C1821FB000 features an anti-sulfur barrier layer that protects against sulfur-induced degradation, a common failure mode in industrial environments with high sulfide exposure (e.g., oil/gas, wastewater treatment). Unlike standard thin film resistors, which can experience resistance drift or open failures due to silver migration in sulfurous atmospheres, the MMA02040C1821FB000's construction prevents this, ensuring long-term stability. Use it in sensor signal conditioning circuits where reliability over 10+ years is critical and ambient sulfur levels are uncontrolled.
Is the MMA02040C1821FB000 a reliable drop-in replacement for the MMA02040C1821FB300, and are there any PCB layout changes needed?
Yes, the MMA02040C1821FB000 is a functional replacement for the MMA02040C1821FB300, with identical electrical specs (1.82kΩ, ±1%, 0.4W) and MELF 0204 package dimensions (1.40mm x 3.60mm). Both are AEC-Q200 qualified and anti-sulfur, so no PCB layout changes are required. However, verify reel specifications and pick-and-place nozzle compatibility if automating assembly, as slight packaging differences may affect manufacturing. The FB000 part is in tape & reel, so it's suitable for high-volume production.
What are the risks of using the MMA02040C1821FB000 in precision voltage divider circuits, and how can I minimize resistance drift over time?
While the MMA02040C1821FB000 offers ±1% tolerance and ±50ppm/°C stability, MELF resistors can be sensitive to soldering thermal stress, which may cause initial resistance shift. To minimize drift in precision voltage dividers, use controlled soldering profiles (per IEC 61191-3), avoid lead-free reflow peaks exceeding 260°C, and allow thermal stabilization before calibration. Avoid mechanical loading after assembly—such as conformal coating stress or board bending—as MELF devices are more brittle than rectangular chips. For highest precision, perform post-reflow trimming or use tighter-tolerance alternatives if budget allows.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
MMA02040C1821FB000 CAD Models
Vishay Beyschlag/Draloric/BC Components MMA02040C1821FB000 PCB symbols & footprints
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