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Diodes Incorporated B320BE-13
- Part No.:
- B320BE-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
B320BE-13.pdf
- Description:
- DIODE SCHOTTKY 20V 3A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:4,259
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Product details
Overview
B320BE-13 from Diodes Incorporated is a 20 V, 3 A surface-mount Schottky barrier rectifier in SMB package with max 0.5 V forward voltage at 3 A and 0.10 mA reverse leakage at 20 V/25°C, used as boost diode in DC-DC converters for portable power supplies.
For engineers reviewing the B320BE-13 datasheet, B320BE-13 pinout, B320BE-13 application, or B320BE-13 equivalent, this page delivers verified electrical specs, thermal resistance (90°C/W junction-to-ambient), SMB mechanical dimensions, and real-world rectification use cases - not generic diode descriptions.
Technical Context
This Schottky rectifier uses a platinum-silicide or similar low-barrier metal-semiconductor junction to achieve low VF and fast switching with no minority-carrier storage delay. Its 20 V VRRM rating targets low-voltage DC-DC output stages where efficiency and thermal stability are critical.
Designed for operation up to +150°C, it maintains <0.10 mA IR at 25°C and exhibits controlled leakage rise at high temperature - enabling reliable blocking in automotive body electronics and industrial SMPS where ambient exceeds 85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 20 V - Maximum repetitive reverse voltage before breakdown; sets safe operating limit in 12 V rail rectification. |
| IO(AV) | 3 A - Average forward current rating at TA = +25°C; defines continuous conduction capability in boost/flyback outputs. |
| VF(max) | 0.50 V @ 3 A, +25°C - Low forward drop reduces conduction loss by ~40% vs. standard PN diodes, improving converter efficiency. |
| IR(max) | 0.10 mA @ 20 V, +25°C - Tight leakage spec ensures minimal standby power loss in battery-powered systems. |
| RθJA | 90 °C/W - Junction-to-ambient thermal resistance on FR-4 board; determines required copper area for 3 A operation at 70°C ambient. |
| CT | 140 pF @ 4 V, 1 MHz - Junction capacitance impacts high-frequency switching noise and EMI in >100 kHz converters. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount plastic case with cathode band marking; dimensions: 3.30–3.94 mm (L) × 4.06–4.57 mm (W) × 1.96–2.21 mm (H); RoHS-compliant matte tin finish over copper leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to input/source side of rectifier; must handle full 3 A RMS current and surge IFSM = 80 A. |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; ties to output/load; sustains 20 V reverse bias while leaking ≤0.10 mA at room temperature. |
Key Features
| Feature | Design Value |
|---|---|
| Low VF at rated current | 0.50 V max @ 3 A enables ≥2% efficiency gain over 0.7 V silicon diodes in 5–12 V output converters. |
| High-temp IR stability | Leakage remains controlled up to +150°C junction, preventing thermal runaway in enclosed power modules. |
| SMB footprint compatibility | Standard DO-214AA outline allows drop-in replacement in existing layouts without PCB redesign. |
| Halogen- and antimony-free | Meets "Green" definition (<900 ppm Br, <900 ppm Cl, <1000 ppm Sb); supports eco-design compliance for EU/Asia markets. |
Applications
| Boost Converter Output Rectifier | USB Power Delivery Input Protection |
|---|---|
Use Scenario: Rectifies switched output in 5 V–12 V boost regulators powering PMICs or display backlights. IC Role / Device Role / Timing Role: Unidirectional current path with minimal conduction loss and zero recovery time. Use Value: 0.5 V VF cuts power dissipation by 0.6 W vs. 1.1 V diode at 3 A, reducing thermal stress on adjacent ICs. | Use Scenario: Blocks reverse current from downstream USB PD sink when upstream source is disconnected. IC Role / Device Role / Timing Role: Reverse-polarity protection diode in 5–20 V input rails. Use Value: 20 V VRRM safely handles USB PD 20 V negotiation transients; 0.10 mA IR prevents battery drain during sleep mode. |
| Automotive Body Control Module Supply | Industrial Sensor Node Power Rail |
Use Scenario: Provides isolated 5 V supply from 12 V battery in BCMs exposed to under-hood temperatures up to +125°C ambient. IC Role / Device Role / Timing Role: Blocking diode in redundant power path or load-dump protected LDO input. Use Value: Stable IR performance at +125°C ensures no thermal runaway during prolonged high-temp operation. | Use Scenario: Powers low-power microcontrollers and analog sensors in factory-floor wireless nodes with wide ambient range. IC Role / Device Role / Timing Role: Output rectifier in miniature flyback or buck-derived auxiliary supply. Use Value: SMB package fits space-constrained PCBs; 90°C/W RθJA enables natural convection cooling without heatsink. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS32-E3/57T (Vishay) | Same 20 V/3 A rating; VF = 0.52 V max @ 3 A; RθJA = 95°C/W; SMB package. | Marginally higher VF increases conduction loss by ~0.06 W at 3 A; identical thermal derating curve. | Select if dual-sourcing required and Vishay's qualification data aligns with your reliability program. |
| SB320-E3/57T (Vishay) | Same SMB footprint; VF = 0.55 V max @ 3 A; IR = 0.15 mA @ 20 V/25°C; slightly higher leakage. | Higher IR may impact battery life in always-on sensor nodes; otherwise functionally interchangeable. | Prefer for cost-sensitive designs where 0.05 mA extra leakage is acceptable and Vishay is preferred vendor. |
Compared with SS32-E3/57T and SB320-E3/57T, B320BE-13 offers the lowest specified VF (0.50 V) and tightest IR (0.10 mA), making it optimal for thermally constrained or ultra-low-quiescent-current applications where every millivolt and microamp matters.
Availability
B320BE-13 is available at Aetrix Electronics and suitable for boost converter output rectification, USB PD input protection, and automotive body control module power supplies requiring stable component supply across production lifecycles.
Supply support for B320BE-13 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The B320BE-13 belongs to Diodes' Schottky rectifier product line, engineered for high-efficiency, low-VF power conversion in space- and thermal-constrained applications from consumer adapters to automotive subsystems.
FAQ
What is the maximum junction temperature for continuous operation?
The B320BE-13 has an operating junction temperature range of –55°C to +150°C. For continuous 3 A DC operation at +70°C ambient, the 90°C/W RθJA results in ~160°C junction temperature - exceeding the absolute maximum. Derating per Figure 4 is required: at +70°C ambient, max IO drops to ~2.2 A to stay within +150°C TJ.
Is the B320BE-13 suitable for synchronous rectification circuits?
No - B320BE-13 is a passive Schottky rectifier, not a MOSFET-based synchronous rectifier controller or driver. It lacks gate drive interface, timing logic, or adaptive control. It functions only as a unidirectional conduction device and cannot replace active synchronous rectification ICs like the AP6320x series.
Does the SMB package support reflow soldering per J-STD-020?
Yes - the B320BE-13's matte tin annealed terminals are qualified for Pb-free reflow per J-STD-020, with peak temperature up to 260°C for ≤30 seconds. Moisture sensitivity level is MSL 1, meaning unlimited floor life at ≤30°C/60% RH, eliminating bake requirements prior to assembly.
How does its reverse leakage compare at elevated temperature?
At +125°C and VR = 20 V, IR rises to approximately 30 µA (per Figure 2), remaining well below 100 µA. This is significantly lower than typical 1N5822 leakage (>100 µA at same conditions), confirming superior thermal stability for high-reliability power rails.
B320BE-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 20 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 500 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 20 V
- Capacitance @ Vr, F:
- 140pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
- Operating Temperature - Junction:
- -55°C ~ 150°C
B320BE-13 FAQ
1.How can I place an order for B320BE-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for B320BE-13 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 B320BE-13 reliable?
The price and inventory of B320BE-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B320BE-13 is usually 5 days.
3.What payment methods are accepted for B320BE-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B320BE-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B320BE-13?
B320BE-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B320BE-13 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 B320BE-13?
For technical support, including B320BE-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B320BE-13 requirements.
6.How does Aetrix verify that B320BE-13 is sourced from the original manufacturer or authorized distributors?
All B320BE-13 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 B320BE-13 meets industry standards.
7.What is the process for return or replacement of B320BE-13?
All B320BE-13 units undergo pre-shipment inspection (PSI). If there is an issue with B320BE-13, 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 B320BE-13 part is unused and in its original packaging.
Return procedure for B320BE-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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