Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
MMU01020D2009FB300
Vishay Beyschlag/Draloric/BC Components
MMU 0102-25 1% BL 20R
107429 Pcs New Original In Stock
Chip Resistor
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (277 Ratings)
MMU01020D2009FB300
Product Overview
2066560
DiGi Electronics Part Number
MMU01020D2009FB300-DGManufacturer
Vishay Beyschlag/Draloric/BC Components
MMU01020D2009FB300
Description
MMU 0102-25 1% BL 20RInventory
107429 Pcs New Original In Stock
Chip Resistor
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
Global Shipping & Secure Packaging
Worldwide Delivery in 3-5 Business Days
100% ESD Anti-Static Packaging
Real-Time Tracking for Every Order
Secure & Flexible Payment
Credit Card, VISA, MasterCard, PayPal, Western Union, Telegraphic Transfer(T/T) and more
All payments encrypted for security
MMU01020D2009FB300 Technical Specifications
Category
Chip Resistor - Surface Mount
Packaging
Tape & Reel (TR)
Series
*
Product Status
Active
Datasheet & Documents
HTML Datasheet
MMU01020D2009FB300-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
Other Names
749-MMU01020D2009FB300TR
Standard Package
3,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
грудня 02, 2025
Je ne peux que louer leur rapidité d'expédition et la qualité de leur service client.
грудня 02, 2025
製品の質が抜群で、配送もとても早かったです。非常に満足しています！
грудня 02, 2025
Shipping has always been on schedule, and I appreciate their professionalism.
грудня 02, 2025
Fast and reliable shipping ensured my order arrived well before the expected date, impressing me greatly.
грудня 02, 2025
The packaging was comprehensive, ensuring all components arrived in perfect condition.
грудня 02, 2025
They offer competitive prices that help us achieve better profit margins.
грудня 02, 2025
Fast shipment combined with excellent support makes DiGi Electronics my go-to supplier.
грудня 02, 2025
I always find their staff approachable and ready to help, making my shopping enjoyable.
грудня 02, 2025
The pricing advantage is outstanding, and the delivery was quicker than I expected. Very satisfied.
грудня 02, 2025
The company's dedication to customer satisfaction is evident in their responsive after-sales team.
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
What are the key reliability risks when replacing MMU01020D2009FB300 with a generic 0102-size 20Ω resistor in high-humidity environments, and how does its MSL 1 rating influence long-term performance?
The MMU01020D2009FB300’s MSL 1 (Unlimited) rating means it can be exposed to ambient conditions indefinitely without moisture-induced failure, making it ideal for humid or uncontrolled environments. Generic 0102 resistors often carry MSL 2 or higher, requiring strict bake-and-seal handling. Substituting without verifying MSL equivalence risks popcorning during reflow or drift over time due to moisture absorption—especially critical in automotive or outdoor IoT applications where the MMU01020D2009FB300 is commonly used.
Can I safely substitute MMU01020D2009FB300 with a Yageo RC0102FR-0720RL in a precision current-sensing circuit, and what performance trade-offs should I expect?
While both are 0102-size 20Ω ±1% resistors, the MMU01020D2009FB300 offers superior long-term stability and lower current noise due to Vishay’s bulk metal foil construction, unlike Yageo’s thin-film RC series. In high-precision current sensing (e.g., battery management systems), the Yageo part may introduce higher TCR drift and thermal EMF, leading to measurement errors over temperature cycles. Stick with MMU01020D2009FB300 for <10ppm/°C stability requirements; only consider Yageo if cost-driven and operating within narrow thermal envelopes.
How does the power rating derating curve of MMU01020D2009FB300 affect its use in compact PCB designs with limited airflow, and what layout practices mitigate thermal runaway risk?
The MMU01020D2009FB300 is rated for 0.15W at 70°C but must be derated linearly to zero at 155°C. In tightly packed boards with poor convection, localized heating from adjacent components can push the resistor beyond safe operating temperatures, accelerating resistance drift. To mitigate this, maintain at least 1mm clearance around the part, avoid placing it near heat sources like inductors or power ICs, and use thermal vias under the pads if grounded—this helps dissipate heat and preserves the resistor’s 1% tolerance over life.
Is the MMU01020D2009FB300 suitable for automotive under-hood applications, and how does its construction compare to AEC-Q200 qualified alternatives like the Vishay CRCW010220R0FKEA?
The MMU01020D2009FB300 is not AEC-Q200 qualified, despite its robust construction and RoHS3 compliance, so it should not be used in safety-critical under-hood systems (e.g., engine control units). The CRCW010220R0FKEA, while also 0102-sized and 20Ω, is AEC-Q200 certified with enhanced mechanical stress resistance and verified performance across -55°C to +155°C. If your design requires automotive-grade reliability, upgrade to the CRCW series; the MMU01020D2009FB300 is better suited for interior infotainment or cabin electronics with milder environmental demands.
What PCB assembly risks arise from using MMU01020D2009FB300 in high-volume SMT production, and how do its tape-and-reel packaging and solderability profile impact yield?
The MMU01020D2009FB300’s tape-and-reel (TR) packaging supports high-speed pick-and-place, but its small 0102 footprint increases susceptibility to tombstoning if solder paste stencil apertures are misaligned or reflow profiles are unbalanced. Ensure symmetrical pad design, use laser-cut stencils with 1:1 aperture ratio, and follow Vishay’s recommended reflow profile (peak ≤260°C, time above liquidus <60s). Its matte tin termination is compatible with SAC305 solder, but avoid prolonged exposure to sulfur-containing fluxes to prevent intermetallic growth that could weaken joints over thermal cycling.
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.
MMU01020D2009FB300 CAD Models
Vishay Beyschlag/Draloric/BC Components MMU01020D2009FB300 PCB symbols & footprints
productDetail
