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Diodes Incorporated SDM20U30LPQ-7
- Part No.:
- SDM20U30LPQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
SDM20U30LPQ-7.pdf
- Description:
- DIODE SCHOTTKY 30V 200MA 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,529
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Product details
Overview
SDM20U30LPQ-7 from Diodes Incorporated is a surface-mount Schottky barrier diode rated for 30 V reverse voltage, 200 mA average forward current, and 0.575 V maximum forward voltage at 200 mA. It features ultra-low capacitance (20 pF), 3 ns reverse recovery time, and AEC-Q101 qualification for automotive use in DC-DC converters and reverse polarity protection circuits.
For engineers reviewing the SDM20U30LPQ-7 datasheet, SDM20U30LPQ-7 pinout, SDM20U30LPQ-7 application, or SDM20U30LPQ-7 equivalent, this device offers verified performance in high-frequency switching, low-loss freewheeling, and space-constrained automotive power rails where thermal resistance (400 °C/W) and lead-free RoHS compliance are critical selection criteria.
Technical Context
This Schottky diode employs guard ring construction to suppress transient-induced failure and delivers fast switching with 3 ns reverse recovery time under IF = IR = 10 mA, IR(REC) = 1 mA conditions. Its low VF (≤575 mV @ 200 mA) and low CT (20 pF @ 0 V, 1 MHz) enable high-efficiency operation in 1–500 kHz SMPS topologies.
The X1-DFN1006-2 package provides minimal footprint (1.0 × 0.6 mm) and low thermal resistance to ambient (400 °C/W on FR-4), supporting compact layout in automotive body control modules and USB-C PD adapters where junction temperature must stay below +125 °C under continuous 200 mA load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (VRRM) | 30 V - Blocks up to 30 V DC or peak AC reverse voltage without breakdown in power rail protection. |
| IF(AV) | 200 mA - Sustains continuous forward current in low-power DC-DC output stages and sensor supply paths. |
| VF MAX | 575 mV @ 200 mA - Minimizes conduction loss and self-heating in battery-powered applications. |
| tRR | 3 ns - Enables clean switching in >100 kHz buck/boost converters with reduced EMI generation. |
| CT | 20 pF @ 0 V, 1 MHz - Limits capacitive loading on high-speed gate drive or signal lines. |
| IR MAX | 150 µA @ 30 V - Ensures low leakage in reverse-biased standby modes of always-on automotive subsystems. |
| RθJA | 400 °C/W - Requires minimum pad copper area per Diodes' recommended layout to maintain TJ ≤ 125 °C at full load. |
Pinout & Package
Package: X1-DFN1006-2 - ultra-small 2-terminal surface-mount plastic package (1.0 mm × 0.6 mm × 0.5 mm), cathode identified by bar or dot marking on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in synchronous rectifier or ground return path). |
| Cathode | Forward current exit / reverse blocking terminal | Marked with bar/dot; ties to higher-potential rail (e.g., output of buck converter or protected VBUS line). |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring construction | Suppresses edge breakdown during voltage transients (e.g., load dump pulses in 12 V automotive systems). |
| Ultra-low forward voltage | Reduces power loss by ≥30% vs. standard silicon diodes at 200 mA, extending battery runtime in portable ECUs. |
| AEC-Q101 qualification | Validated for automotive underhood environments including temperature cycling (-40 °C to +125 °C) and mechanical shock. |
| Lead-free & halogen-free | Meets IATF 16949 manufacturing standards and EU RoHS 3 (2015/863/EU) with <900 ppm Br/Cl and <1000 ppm Sb. |
Applications
| Automotive Body Control Module | USB-C Power Delivery Adapter |
|---|---|
Use Scenario: Reverse polarity protection on 12 V input rail feeding microcontroller and CAN transceiver. IC Role / Device Role / Timing Role: Unidirectional blocking diode preventing damage during battery jump-start misconnection. Use Value: 30 V rating covers ISO 7637-2 pulse 1/2/5a; 150 µA IR ensures negligible quiescent drain on vehicle battery. |
Use Scenario: Output rectification in 20 W flyback converter supplying 5–20 V USB-PD profiles. IC Role / Device Role / Timing Role: High-frequency freewheeling diode synchronized with primary-side MOSFET switching. Use Value: 3 ns tRR and 20 pF CT minimize switching losses and EMI, enabling compact transformer design. |
| Industrial Sensor Node | Smartphone Charging Circuit |
Use Scenario: Input protection for 3.3 V LDO powering MEMS accelerometer and BLE radio. IC Role / Device Role / Timing Role: Low-leakage reverse-blocking element isolating backup coin-cell from main Li-ion supply. Use Value: 0.575 V VF at 200 mA enables >92% efficiency in 3.3 V output stage; 0.001 g weight supports miniaturization. |
Use Scenario: Load switch isolation between USB port and internal battery charging IC. IC Role / Device Role / Timing Role: Directional current valve preventing backfeed during OTG mode or charger removal. Use Value: X1-DFN1006-2 footprint fits within 1.2 mm board edge clearance; NiPdAu terminals ensure reliable reflow soldering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB050M-30TE25 (ROHM) | Higher VF (0.65 V @ 200 mA); same 30 V VR; larger SOD-523 package (1.6 × 0.8 mm). | Less suitable for ultra-dense layouts; marginally higher conduction loss in thermally constrained designs. | Select when legacy SOD-523 footprint compatibility is required and 80 mV VF penalty is acceptable. |
| SBM2030L (ON Semiconductor) | Same X1-DFN1006-2 package; slightly higher IR (200 µA @ 30 V); identical VF and tRR specs. | Not AEC-Q101 qualified; limited to commercial-grade industrial or consumer applications. | Choose for cost-sensitive non-automotive designs where automotive qualification is unnecessary. |
Compared with RB050M-30TE25 and SBM2030L, SDM20U30LPQ-7 uniquely combines AEC-Q101 qualification, industry-leading 0.575 V VF at full rated current, and the smallest DFN footprint-making it optimal for next-generation automotive ECUs requiring both reliability and miniaturization.
Availability
SDM20U30LPQ-7 is available at Aetrix Electronics and suitable for automotive body control modules, USB-C power delivery adapters, and industrial sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SDM20U30LPQ-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management and signal integrity solutions for automotive, industrial, and consumer markets.
The SDM20U30LPQ-7 belongs to Diodes' AEC-Q101-qualified Schottky diode product line, engineered specifically for high-efficiency, space-constrained power conversion and protection in automotive electronics.
FAQ
Is SDM20U30LPQ-7 suitable for reflow soldering?
Yes. The device uses NiPdAu-annealed terminals over copper leadframe and is rated for standard Pb-free reflow profiles per J-STD-020. Its moisture sensitivity level is Class 1, eliminating bake requirements prior to assembly. Thermal resistance data assumes mounting on FR-4 with Diodes' recommended pad layout.
What is the maximum operating temperature for continuous 200 mA current?
At 200 mA DC forward current, junction temperature must not exceed +125 °C. With RθJA = 400 °C/W and TA = +85 °C, maximum allowable power dissipation is 87.5 mW. Since PD = VF × IF ≈ 115 mW at 575 mV, derating to ≤150 mA is required above +85 °C ambient unless enhanced PCB copper is used.
Does the cathode marking vary between production lots?
No. Cathode identification is consistently marked with either a bar or dot on the top surface per Diodes' specification. From date code 1527 (2015, week 27), the marking changed to dual LM codes flanking the cathode indicator, but the functional polarity reference remains unambiguous and unchanged.
How does guard ring construction improve robustness?
The integrated guard ring mitigates electric field crowding at the die edge during transient overvoltage events-such as ISO 7637-2 pulse 5a (load dump)-by providing a controlled breakdown path. This prevents localized avalanche damage and maintains stable reverse leakage (<150 µA) after repeated stress exposure.
SDM20U30LPQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 0402 (1006 Metric)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 575 mV @ 200 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 3 ns
- Current - Reverse Leakage @ Vr:
- 150 µA @ 30 V
- Capacitance @ Vr, F:
- 20pF @ 0V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X1-DFN1006-2
- Operating Temperature - Junction:
- -65°C ~ 125°C
SDM20U30LPQ-7 FAQ
1.How can I place an order for SDM20U30LPQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SDM20U30LPQ-7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SDM20U30LPQ-7 reliable?
The price and inventory of SDM20U30LPQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDM20U30LPQ-7 is usually 5 days.
3.What payment methods are accepted for SDM20U30LPQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDM20U30LPQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDM20U30LPQ-7?
SDM20U30LPQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDM20U30LPQ-7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SDM20U30LPQ-7?
For technical support, including SDM20U30LPQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDM20U30LPQ-7 requirements.
6.How does Aetrix verify that SDM20U30LPQ-7 is sourced from the original manufacturer or authorized distributors?
All SDM20U30LPQ-7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SDM20U30LPQ-7 meets industry standards.
7.What is the process for return or replacement of SDM20U30LPQ-7?
All SDM20U30LPQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with SDM20U30LPQ-7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SDM20U30LPQ-7 part is unused and in its original packaging.
Return procedure for SDM20U30LPQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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