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Diodes Incorporated SBRT05U20LPSQ-7B
- Part No.:
- SBRT05U20LPSQ-7B
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
SBRT05U20LPSQ-7B.pdf
- Description:
- DIODE SBR 20V 500MA 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:8,880
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Product details
Overview
SBRT05U20LPSQ-7B from Diodes Incorporated is a 20 V, 0.5 A Trench Super Barrier Rectifier (SBR®) in X2-DFN1006-2 package, featuring ultra-low VF (0.39 V max at 0.5 A), <50 µA IR at 125°C, 15 ns reverse recovery time, and AEC-Q101 qualification - deployed in automotive DC-DC converters for polarity protection and freewheeling.
For engineers reviewing the SBRT05U20LPSQ-7B datasheet, SBRT05U20LPSQ-7B pinout, SBRT05U20LPSQ-7B application, or SBRT05U20LPSQ-7B equivalent, key selection criteria include forward voltage drop at 0.5 A, high-temperature leakage stability, soft-switching behavior, thermal resistance (236 °C/W), and automotive-grade reliability under IATF 16949 manufacturing.
Technical Context
This SBR rectifier uses patented trench-based super barrier architecture to achieve lower VF than Schottky diodes while maintaining superior reverse leakage control up to +150°C junction temperature. Its soft, fast switching (tRR ≤ 15 ns) and low CT (14 pF) minimize EMI in high-frequency SMPS topologies.
The device operates with 20 V peak repetitive reverse voltage and supports 10 A non-repetitive surge current. Its X2-DFN1006-2 footprint enables compact layout in space-constrained automotive modules where thermal performance and AEC-Q101 compliance are mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 20 V - Maximum blocking voltage before breakdown; sets upper limit for input rail protection in 12 V automotive systems. |
| IO | 0.5 A - Continuous average forward current; suitable for low-power DC-DC output stages and auxiliary bias rails. |
| VF Max | 0.39 V @ 0.5 A - Ultra-low conduction loss reduces heat generation and improves efficiency in battery-sensitive applications. |
| IR Max | 50 µA @ 20 V, 125°C - Exceptionally stable leakage at elevated temperature ensures reliability in under-hood environments. |
| tRR | 15 ns - Fast, soft reverse recovery minimizes switching noise and voltage spikes in synchronous rectifier circuits. |
| RθJA | 236 °C/W - Thermal resistance on standard FR-4 board; defines power derating curve up to 150°C ambient. |
| AEC-Q101 | Qualified - Validated for automotive use with PPAP capability and IATF 16949 manufacturing traceability. |
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.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry | Connected to input/source side; requires PCB pad design per Diodes' recommended layout (X1=1.10 mm, Y=0.70 mm). |
| Cathode (bar-marked) | Forward current exit / reverse blocking terminal | Marked side on top surface; ties to ground or return path; critical for correct polarity protection orientation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low VF | 0.39 V max at 0.5 A - Reduces conduction loss by >30% vs. standard Schottky diodes in same package, extending battery life. |
| Soft switching | tRR ≤ 15 ns with low di/dt-induced ringing - Enables clean turn-off in high-frequency buck converters without snubbers. |
| +150°C TJ operation | Rated junction temperature - Supports placement near hot components (e.g., power inductors, MOSFETs) in engine control units. |
| AEC-Q101 qualification | PPAP-capable, IATF 16949 manufacturing - Meets automotive change control, lot traceability, and stress-test requirements. |
| Green compound | Halogen- and antimony-free, UL 94V-0 molding - Complies with automotive material declarations (e.g., IMDS, ELV) and RoHS 3. |
Applications
| Automotive DC-DC Converters | Reverse Polarity Protection |
|---|---|
Use Scenario: Step-down conversion from 12 V battery to 3.3 V/5 V for infotainment microcontrollers and sensors. IC Role / Device Role / Timing Role: Output rectifier in synchronous buck topology, conducting during low-side switch off-time. Use Value: 0.39 V VF reduces power loss by ~195 mW vs. 0.55 V Schottky, lowering thermal load in sealed enclosures. | Use Scenario: Input protection circuit preventing damage when battery terminals are reversed during service. IC Role / Device Role / Timing Role: Series-connected anode-to-input, cathode-to-system-rail; blocks reverse current flow. Use Value: 50 µA IR at 125°C ensures minimal standby drain, preserving battery charge over extended parking periods. |
| SMPS Freewheeling Diode | General Switching Applications |
Use Scenario: Freewheeling path in boost LED driver for automotive exterior lighting. IC Role / Device Role / Timing Role: Provides continuous current path for inductor energy decay during high-side switch off-phase. Use Value: Soft 15 ns tRR suppresses voltage overshoot across LED string, eliminating need for TVS clamping. | Use Scenario: Voltage clamping and flyback suppression in solenoid driver circuits for transmission control valves. IC Role / Device Role / Timing Role: Snubber diode across inductive load, absorbing stored energy during de-energization. Use Value: 10 A IFSM rating handles transient surges from 24 V solenoid coil collapse without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super barrier rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBRT05U20LP3Q-7 | Same die, different tape-and-reel packaging (3,000 pcs vs. 10,000 pcs); identical electrical specs and AEC-Q101 status. | No functional difference; used interchangeably where volume or reel size constraints apply. | Select based on procurement logistics - SBRT05U20LPSQ-7B preferred for high-volume automated assembly. |
| RB050M-30 | Higher VF (0.45 V min), higher IR (100 µA @ 125°C), no AEC-Q101 qualification; TO-220AC package. | Limited to industrial/non-automotive use due to qualification gap and larger footprint. | Only acceptable if automotive qualification and DFN miniaturization are not required. |
Compared with SBRT05U20LP3Q-7, the -7B variant offers optimized reel quantity for SMT line efficiency; versus RB050M-30, it delivers lower loss, tighter leakage, and certified automotive readiness - making it the sole qualified choice for under-hood DC-DC designs.
Availability
SBRT05U20LPSQ-7B is available at Aetrix Electronics and suitable for automotive DC-DC converters, reverse polarity protection circuits, and SMPS freewheeling applications requiring stable component supply, AEC-Q101 traceability, and high-temperature reliability.
Supply support for SBRT05U20LPSQ-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 rectification with enhanced thermal stability and automotive qualification - designed specifically for next-generation 12 V/48 V hybrid vehicle power systems and compact DC-DC modules.
FAQ
What is the maximum junction temperature and how does it affect layout?
The SBRT05U20LPSQ-7B has a rated maximum junction temperature of +150°C. Its RθJA of 236 °C/W on standard FR-4 means that at 0.5 A and 0.39 V VF, ~195 mW power dissipation raises junction temperature by ~46°C above ambient. Layout must provide adequate copper area and avoid thermal islands to sustain full-rated current at 125°C ambient.
Is this part suitable for synchronous rectification replacement?
No - the SBRT05U20LPSQ-7B is a unidirectional rectifier, not a synchronous MOSFET controller or gate driver. It replaces Schottky diodes in asynchronous topologies. For synchronous rectification, a dedicated controller (e.g., AP6320x) driving external MOSFETs is required.
Does the X2-DFN1006-2 package require special soldering profiles?
Yes - the X2-DFN1006-2 is a bottom-terminated, thermally enhanced DFN. Reflow must follow J-STD-020 Level 1 profile with peak temperature ≤ 260°C, and solder paste volume must match Diodes' recommended pad layout (X1=1.10 mm, Y=0.70 mm) to ensure void-free thermal interface and mechanical reliability.
How does its reverse recovery compare to standard Schottky diodes?
Unlike conventional Schottky diodes (which exhibit no true reverse recovery), this SBR exhibits controlled soft recovery with tRR ≤ 15 ns - significantly faster and less noisy than PN junction diodes, yet more robust against thermal runaway than Schottkys at high temperature due to lower IR drift.
SBRT05U20LPSQ-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
SBRT05U20LPSQ-7B FAQ
1.How can I place an order for SBRT05U20LPSQ-7B through Aetrix?
Please submit a Request for Quotation (RFQ) for SBRT05U20LPSQ-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 SBRT05U20LPSQ-7B reliable?
The price and inventory of SBRT05U20LPSQ-7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBRT05U20LPSQ-7B is usually 5 days.
3.What payment methods are accepted for SBRT05U20LPSQ-7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBRT05U20LPSQ-7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBRT05U20LPSQ-7B?
SBRT05U20LPSQ-7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBRT05U20LPSQ-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 SBRT05U20LPSQ-7B?
For technical support, including SBRT05U20LPSQ-7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBRT05U20LPSQ-7B requirements.
6.How does Aetrix verify that SBRT05U20LPSQ-7B is sourced from the original manufacturer or authorized distributors?
All SBRT05U20LPSQ-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 SBRT05U20LPSQ-7B meets industry standards.
7.What is the process for return or replacement of SBRT05U20LPSQ-7B?
All SBRT05U20LPSQ-7B units undergo pre-shipment inspection (PSI). If there is an issue with SBRT05U20LPSQ-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 SBRT05U20LPSQ-7B part is unused and in its original packaging.
Return procedure for SBRT05U20LPSQ-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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