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Diodes Incorporated SBRT05U20LPS-7B
- Part No.:
- SBRT05U20LPS-7B
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
SBRT05U20LPS-7B.pdf
- Description:
- DIODE SBR 20V 500MA 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:94,763
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Product details
Overview
SBRT05U20LPS-7B from Diodes Incorporated is a 0.5A, 20V Trench Super Barrier Rectifier (SBR®) in X2-DFN1006-2 package, featuring ultra-low VF (0.39 V max at 0.5A, +25°C), 0.05 mA IR max at 20V/+25°C, and +150°C operating junction temperature. It serves as a high-efficiency freewheeling or polarity protection diode in compact DC-DC converters and SMPS secondary-side rectification.
For engineers reviewing the SBRT05U20LPS-7B datasheet, SBRT05U20LPS-7B pinout, SBRT05U20LPS-7B application, or SBRT05U20LPS-7B equivalent, key selection criteria include forward voltage drop at 0.5A, reverse leakage stability up to +125°C, thermal resistance (236°C/W), AEC-Q101 qualification, and DFN1006 footprint compatibility with space-constrained power rails.
Technical Context
This SBR device uses patented trench-based super barrier technology to achieve lower VF than Schottky diodes while maintaining superior reverse leakage performance-especially critical above +85°C. Its soft, fast switching behavior minimizes EMI in high-frequency switching topologies like synchronous buck converters.
Rated for 20V repetitive reverse voltage and 10A non-repetitive surge current (8.3ms half-sine), it operates reliably from −65°C to +150°C junction temperature and is qualified to AEC-Q101 for automotive-grade reliability in under-hood and infotainment power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 20 V - Maximum repetitive reverse blocking voltage; defines safe DC/AC peak voltage limit before breakdown |
| IO | 0.5 A - Average forward rectified current; derated linearly above +25°C ambient per Figure 4 |
| VF Max | 0.39 V @ 0.5A, +25°C - Enables <195 mW conduction loss at full load; critical for >90% efficiency targets |
| IR Max | 0.05 mA @ 20V, +25°C - Low leakage preserves battery life in always-on reverse-polarity protection circuits |
| RθJA | 236 °C/W - Thermal resistance on 1-layer FR-4; requires careful PCB copper area planning for >300 mW dissipation |
| TJ Range | −65°C to +150°C - Supports operation in automotive engine compartments and industrial motor drives |
| CT | 14 pF @ 1 MHz, 20V - Low capacitance reduces switching losses and noise coupling in 1–3 MHz DC-DC designs |
Pinout & Package
Package: X2-DFN1006-2 - 1.0 mm × 0.6 mm, 0.37 mm height, lead-free NiPdAu-plated copper leadframe, moisture sensitivity level 1, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry | Connected to input/source side in rectifier or cathode-side clamp configurations |
| Cathode | Forward current exit / reverse blocking terminal | Marked with cathode dot; ties to output/load or ground return path; handles full reverse voltage |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low VF | 0.32 V typ @ 0.5A, +25°C - Reduces conduction loss by ~30% vs. standard Schottky diodes in 5V/3.3V rail rectification |
| +150°C TJ rating | Enables use in thermally constrained locations without derating penalties up to maximum ambient |
| AEC-Q101 qualified | Validated for automotive applications including infotainment, body control modules, and ADAS power supplies |
| Soft, fast switching | Minimizes reverse recovery ringing and EMI in 500 kHz–2 MHz switching converters |
Applications
| SMPS Secondary Rectification | Reverse Polarity Protection |
|---|---|
Use Scenario: Output rectification in isolated flyback or forward converters delivering 3.3V/5V at ≤0.5A. IC Role / Device Role / Timing Role: Unidirectional current path enabling efficient energy transfer during switch-off phase; replaces higher-VF Schottky diodes. Use Value: 0.39 V VF reduces conduction loss to <200 mW, improving light-load efficiency and easing thermal design on small PCBs. | Use Scenario: Input protection for USB-C PD adapters, portable medical monitors, and industrial sensors. IC Role / Device Role / Timing Role: Series-connected anode-to-input, cathode-to-load; blocks reverse current during incorrect connector insertion. Use Value: 0.05 mA IR at +25°C and low VF ensure minimal standby power loss and no voltage drop penalty in always-on systems. |
| DC-DC Converter Freewheeling | Automotive Body Electronics |
Use Scenario: Freewheeling path in non-synchronous buck regulators powering FPGA I/O banks or microcontroller cores. IC Role / Device Role / Timing Role: Provides low-loss current recirculation path when high-side MOSFET is off; clamps inductive kickback. Use Value: Soft switching and 14 pF CT suppress voltage overshoot and reduce EMI filtering component count. | Use Scenario: Power rail protection in door module ECUs, seat control units, and LED lighting drivers. IC Role / Device Role / Timing Role: AEC-Q101-qualified polarity guard on 12V supply inputs; withstands load dump transients via avalanche capability. Use Value: +150°C operation and robust reverse avalanche performance ensure reliability in under-dash environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super barrier rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBRT05U20LP-7 | Same die, identical electrical specs; differs only in tape-and-reel quantity (3,000 vs. 10,000 units) | No functional difference; used interchangeably where volume packaging is not constrained | Select -7 for prototyping or low-volume production; -7B for high-volume automated assembly |
| AP1020GH-HF | 0.5A/20V SBR; VF = 0.42 V max @ 0.5A; IR = 0.1 mA max @ 20V/+25°C; RθJA = 250°C/W | Slightly higher VF and leakage; same DFN1006 footprint but not AEC-Q101 qualified | Choose for cost-sensitive industrial applications where automotive qualification is unnecessary |
Compared with SBRT05U20LPS-7B, SBRT05U20LP-7 offers identical performance in smaller reels, while AP1020GH-HF trades AEC-Q101 compliance and tighter leakage for marginally higher conduction loss-making the -7B optimal for automotive and thermally demanding designs.
Availability
SBRT05U20LPS-7B is available at Aetrix Electronics and suitable for SMPS secondary rectification, reverse polarity protection, and DC-DC converter freewheeling requiring stable component supply across automotive, industrial, and portable electronics programs.
Supply support for SBRT05U20LPS-7B 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-efficiency power management and signal integrity solutions for automotive, industrial, and consumer markets.
The Trench SBR product line delivers ultra-low VF rectifiers optimized for high-frequency, space-constrained power conversion-targeting efficiency-critical roles in DC-DC, SMPS, and automotive body electronics.
FAQ
What is the maximum continuous forward current for SBRT05U20LPS-7B at +100°C ambient?
At +100°C ambient, the average forward current is derated to approximately 0.32 A per Figure 4's forward current derating curve. This reflects thermal limits imposed by its 236°C/W junction-to-ambient resistance on standard FR-4 PCBs, not intrinsic device failure.
Does SBRT05U20LPS-7B have a specified reverse recovery time (trr)?
No trr value is specified in the datasheet because the device uses super barrier technology-not PN or Schottky junctions-resulting in inherently soft, quasi-gradual reverse recovery without abrupt carrier snap-off. Its "soft, fast switching" behavior is validated by low EMI in application testing, not trr measurement.
Can SBRT05U20LPS-7B replace a standard Schottky diode in a 5V/0.5A buck converter?
Yes-it is a direct footprint-compatible replacement for DFN1006 Schottky diodes. With 0.39 V VF vs. typical 0.45–0.55 V for Schottkys, it reduces conduction loss by ≥120 mW at full load, improving efficiency and reducing thermal stress on adjacent components.
Is the cathode marking visible on the top or bottom surface of SBRT05U20LPS-7B?
The cathode is marked with a dot on the top surface of the X2-DFN1006-2 package, aligned with the cathode terminal. The bottom surface contains no markings; orientation must be verified using top-side dot placement during automated optical inspection or manual assembly.
SBRT05U20LPS-7B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 0402 (1006 Metric)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Super Barrier
- Voltage - DC Reverse (Vr) (Max):
- 20 V
- Current - Average Rectified (Io):
- 500mA
- Voltage - Forward (Vf) (Max) @ If:
- 390 mV @ 500 mA
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 50 µA @ 20 V
- Capacitance @ Vr, F:
- 14pF @ 20V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X2-DFN1006-2
- Operating Temperature - Junction:
- -65°C ~ 150°C
SBRT05U20LPS-7B FAQ
1.How can I place an order for SBRT05U20LPS-7B through Aetrix?
Please submit a Request for Quotation (RFQ) for SBRT05U20LPS-7B 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 SBRT05U20LPS-7B reliable?
The price and inventory of SBRT05U20LPS-7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBRT05U20LPS-7B is usually 5 days.
3.What payment methods are accepted for SBRT05U20LPS-7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBRT05U20LPS-7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBRT05U20LPS-7B?
SBRT05U20LPS-7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBRT05U20LPS-7B 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 SBRT05U20LPS-7B?
For technical support, including SBRT05U20LPS-7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBRT05U20LPS-7B requirements.
6.How does Aetrix verify that SBRT05U20LPS-7B is sourced from the original manufacturer or authorized distributors?
All SBRT05U20LPS-7B 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 SBRT05U20LPS-7B meets industry standards.
7.What is the process for return or replacement of SBRT05U20LPS-7B?
All SBRT05U20LPS-7B units undergo pre-shipment inspection (PSI). If there is an issue with SBRT05U20LPS-7B, 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 SBRT05U20LPS-7B part is unused and in its original packaging.
Return procedure for SBRT05U20LPS-7B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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Diodes Incorporated
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