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Diodes Incorporated SBR05U20SN-7
- Part No.:
- SBR05U20SN-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
SBR05U20SN-7.pdf
- Description:
- DIODE ARR SBR 20V 250MA SC-59-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,411
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Product details
Overview
SBR05U20SN-7 from Diodes Incorporated is a 0.5A surface-mount Super Barrier Rectifier with 20V peak repetitive reverse voltage, ultra-low forward voltage drop (0.51V typ. @ 0.5A, 25°C), and AEC-Q101 qualification for automotive-grade reliability. It operates up to 150°C junction temperature and features soft, fast switching for high-efficiency DC/DC output rectification in compact power supplies.
For engineers reviewing the SBR05U20SN-7 datasheet, SBR05U20SN-7 pinout, SBR05U20SN-7 application, or SBR05U20SN-7 equivalent, key selection criteria include its 20V VRRM, 0.51V VF at 0.5A, 3A non-repetitive surge rating, SC-59 package thermal resistance (134°C/W), and AEC-Q101 qualification for under-hood automotive use.
Technical Context
This Super Barrier Rectifier replaces Schottky diodes in low-voltage, high-current rectification where lower forward voltage and superior avalanche ruggedness are required. Its patented structure delivers lower VF than standard PN diodes while maintaining higher reverse breakdown stability than conventional Schottkys.
Designed for single-phase, half-wave rectification with resistive or inductive loads, it supports 500mA average forward current at 25°C ambient and derates linearly to zero at 150°C. Reverse leakage remains ≤0.5µA at 20V/25°C and ≤20µA at 20V/125°C - critical for standby power integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 20 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in 12V automotive or 5V/3.3V SMPS secondary-side applications. |
| IF(AV) | 500 mA - Continuous DC output current capability at 25°C; sufficient for point-of-load converters in infotainment and body control modules. |
| VF | 0.51 V (typ) @ 0.5A, 25°C - Ultra-low conduction loss reduces heat generation and improves efficiency vs. standard Schottky alternatives. |
| IFSM | 3 A - Non-repetitive surge current rating; withstands inrush and transient overloads without failure. |
| TJ | –65°C to +150°C - Extended junction temperature range enables placement near hot components in engine bay or powertrain ECUs. |
| RθJA | 134 °C/W - Thermal resistance on standard 2oz copper PCB; informs heatsinking requirements for sustained 500mA operation. |
Pinout & Package
Package: SC-59 - Surface-mount, 3-terminal plastic molded case (0.008 g), UL 94V-0 rated, matte tin-plated copper leadframe, RoHS-compliant and "Green" certified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Input current entry point | Connected to positive side of AC source or switching node; must handle full forward current and surge transients. |
| Cathode (Pin 2) | Output current exit point | Connected to output rail; polarity marking visible on top surface; determines direction of rectified current flow. |
| Tab / Exposed Pad (Pin 3) | Thermal and electrical connection to cathode | Internally tied to cathode; provides enhanced thermal path to PCB copper pour for improved power dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low forward voltage | 0.51V typ. @ 0.5A/25°C - Reduces conduction loss by ~15% vs. comparable Schottky diodes, directly improving system efficiency. |
| Superior reverse avalanche capability | Rated for repetitive avalanche energy - Enables robust operation in inductive load switching without external snubbers. |
| AEC-Q101 qualified | Validated for automotive applications including engine control, lighting, and ADAS subsystems - ensures long-term reliability under thermal cycling and vibration. |
| Soft, fast switching | Low reverse recovery charge (Qrr) - Minimizes EMI and switching losses during turn-off in high-frequency DC/DC converters. |
Applications
| Automotive Body Control Module (BCM) | USB-C Power Delivery (5V Rail) |
|---|---|
Use Scenario: Rectifying switched 12V input to regulated 5V supply for microcontroller, CAN transceiver, and sensor interfaces. IC Role / Device Role: Output rectifier in synchronous buck converter secondary stage. Use Value: Low VF minimizes dropout and thermal rise in space-constrained BCM PCBs; AEC-Q101 ensures compliance with automotive qualification standards. | Use Scenario: Secondary-side rectification in isolated 5V flyback or active clamp forward converters powering USB-C PD ports. IC Role / Device Role: High-efficiency, low-noise output diode replacing Schottky in cost-sensitive consumer adapters. Use Value: Soft switching reduces EMI emissions below CISPR-32 limits; 150°C rating allows operation in sealed enclosures without forced air. |
| Industrial PLC I/O Power Supply | LED Driver Constant-Current Stage |
Use Scenario: Providing isolated 24V-to-5V/3.3V auxiliary rails for digital I/O conditioning and communication ICs. IC Role / Device Role: Input rectifier for unregulated DC-DC front-end stage feeding LDOs or buck controllers. Use Value: 3A IFSM withstands brown-out surges; low leakage (<0.5µA @ 25°C) preserves standby current budget in always-on modules. | Use Scenario: Rectifying high-frequency AC from transformer-coupled LED driver stages delivering constant current to high-brightness LEDs. IC Role / Device Role: Fast-recovery, low-loss rectifier in resonant or quasi-resonant LED driver output stage. Use Value: Superior avalanche ruggedness prevents failure during LED open-circuit transients; 134°C/W RθJA enables compact thermal design on FR4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Super Barrier Rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBRT0520H-7 | Same SC-59 package, 20V VRRM, but 0.49V VF (typ) @ 0.5A and 175°C TJ rating. | Higher temperature capability suits under-hood engine control units beyond 150°C ambient zones. | Select when extended junction temperature margin is required; otherwise identical footprint and function. |
| MBR0520L-7 | Standard Schottky, same 20V/0.5A rating, but higher VF (0.55V typ) and no AEC-Q101 qualification. | Lacks automotive qualification and has inferior avalanche ruggedness - limited to commercial-grade consumer power supplies. | Acceptable only for non-automotive, cost-driven designs where qualification and ruggedness are not mandatory. |
Compared with SBRT0520H-7, SBR05U20SN-7 trades 25°C higher max TJ for broader availability and lower cost; versus MBR0520L-7, it adds AEC-Q101 validation and lower VF, enabling automotive deployment without redesign.
Availability
SBR05U20SN-7 is available at Aetrix Electronics and suitable for automotive body electronics, USB-C adapter power supplies, and industrial PLC auxiliary power rails requiring stable component supply, AEC-Q101 compliance, and consistent thermal performance across production batches.
Supply support for SBR05U20SN-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, signal integrity, and protection solutions for automotive, industrial, and consumer markets.
The SBR® Super Barrier Rectifier product line was developed to deliver Schottky-like forward performance with enhanced reverse ruggedness and temperature stability - specifically targeting automotive and high-efficiency switch-mode power supply applications.
FAQ
What is the maximum continuous forward current for SBR05U20SN-7 at 100°C ambient?
At 100°C ambient temperature, the SBR05U20SN-7 supports approximately 350mA average forward current, based on its derating curve (Figure 5). This value assumes standard 2oz copper PCB layout per Diodes' recommended pad dimensions and accounts for thermal resistance of 134°C/W.
Is SBR05U20SN-7 pin-compatible with standard SOD-123 or SMA packages?
No - SBR05U20SN-7 uses the SC-59 package (also known as SOT-23 variant with exposed cathode tab), which has different footprint, pin spacing, and thermal pad layout than SOD-123 or SMA. Mechanical dimensions and pad recommendations are specified in the datasheet (page 3).
Does SBR05U20SN-7 require a heatsink for 500mA operation?
No external heatsink is required for 500mA operation at 25°C ambient when mounted on a standard 2oz copper PCB with Diodes' recommended pad layout. The device's 134°C/W RθJA and 150°C TJ rating allow self-cooled operation within this condition.
How does the SBR05U20SN-7 perform in reverse bias during transient voltage spikes?
It exhibits superior reverse avalanche capability - rated for repetitive avalanche energy events without degradation. At 20V reverse bias, leakage stays ≤0.5µA at 25°C, and the device sustains short-duration transients up to its VRRM without breakdown, unlike standard Schottkys with softer reverse characteristics.
SBR05U20SN-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- SBR®
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Super Barrier
- Voltage - DC Reverse (Vr) (Max):
- 20 V
- Current - Average Rectified (Io) (per Diode):
- 250mA
- Voltage - Forward (Vf) (Max) @ If:
- 560 mV @ 500 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 20 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-59-3
SBR05U20SN-7 FAQ
1.How can I place an order for SBR05U20SN-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR05U20SN-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 SBR05U20SN-7 reliable?
The price and inventory of SBR05U20SN-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR05U20SN-7 is usually 5 days.
3.What payment methods are accepted for SBR05U20SN-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR05U20SN-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR05U20SN-7?
SBR05U20SN-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR05U20SN-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 SBR05U20SN-7?
For technical support, including SBR05U20SN-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR05U20SN-7 requirements.
6.How does Aetrix verify that SBR05U20SN-7 is sourced from the original manufacturer or authorized distributors?
All SBR05U20SN-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 SBR05U20SN-7 meets industry standards.
7.What is the process for return or replacement of SBR05U20SN-7?
All SBR05U20SN-7 units undergo pre-shipment inspection (PSI). If there is an issue with SBR05U20SN-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 SBR05U20SN-7 part is unused and in its original packaging.
Return procedure for SBR05U20SN-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBR05U20SN-7 Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
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BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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