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Diodes Incorporated B320AE-13
- Part No.:
- B320AE-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
B320AE-13.pdf
- Description:
- DIODE SCHOTTKY 20V 3A SMA
- Quantity:
- Payment:
- Shipping:
Inventory:14,956
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Product details
Overview
B320AE-13 from Diodes Incorporated is a 3.0A, 20V Schottky barrier rectifier in SMA package, featuring 0.50V max forward voltage at 3A/25°C, 0.10mA max reverse leakage at 20V/25°C, and 60°C/W junction-to-ambient thermal resistance - optimized for boost, blocking, and recirculating diode roles in DC-DC converters and power supplies.
For engineers reviewing the B320AE-13 datasheet, B320AE-13 pinout, B320AE-13 application, or B320AE-13 equivalent, key selection criteria include low VF for efficiency-critical 3A rectification, high-temperature IR stability up to +150°C, RoHS-compliant matte tin terminals, and SMA package compatibility with standard surface-mount reflow profiles.
Technical Context
This Schottky rectifier uses a planar metal-semiconductor junction to achieve low forward conduction loss and fast switching with no minority-carrier storage delay. Its 20V VRRM rating targets low-voltage DC-DC stages where reverse recovery time and forward drop directly impact converter efficiency.
Thermal design is enabled by a 30°C/W junction-to-case resistance and defined FR-4 mounting conditions (1"×1", 2oz copper). The device operates across –55°C to +150°C, with reverse leakage tightly controlled (<0.10mA at 25°C) and derated only modestly at elevated temperatures per Figure 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 20 V - Maximum repetitive reverse voltage before breakdown; sets upper limit for blocking capability in low-voltage power rails. |
| IO | 3 A - Average rectified output current under specified thermal conditions; defines continuous DC conduction capacity. |
| VF (max) | 0.50 V @ 3A, 25°C - Peak forward voltage drop; directly determines I²R conduction loss and thermal load in high-current paths. |
| IR (max) | 0.10 mA @ 20V, 25°C - Maximum reverse leakage; critical for standby power loss and thermal runaway avoidance at high ambient temperatures. |
| RθJA | 60 °C/W - Junction-to-ambient thermal resistance on standard FR-4 PCB; enables thermal budget calculation for 3A operation without forced cooling. |
| TJ Range | –55°C to +150°C - Full operating junction temperature range; supports automotive under-hood and industrial high-temp environments. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount molded plastic case with cathode band marking; dimensions: 4.60 × 2.92 × 2.29 mm (L × W × H); weight ≈ 0.063 g; RoHS-compliant matte tin over copper leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., switch node in boost converter); accepts 3A DC with ≤0.5V drop. |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; connects to higher-potential rail (e.g., output capacitor); blocks up to 20V reverse bias with <0.1mA leakage. |
Key Features
| Feature | Design Value |
|---|---|
| Low VF Schottky architecture | 0.50V max at 3A/25°C - reduces conduction loss by ~30% vs. comparable PN rectifiers, lowering thermal stress in compact layouts. |
| High-temperature IR stability | 0.10mA max at 25°C, well-controlled up to 150°C - prevents thermal runaway in unventilated enclosures or high-ambient applications. |
| SMA package with J-STD-020 Level 1 MSL | Moisture-insensitive, reflow-compatible outline - eliminates baking requirements and supports high-yield automated assembly. |
| Halogen- and antimony-free "Green" construction | <900ppm Br, <900ppm Cl, <1000ppm Sb - meets global environmental compliance mandates without sacrificing electrical performance. |
Applications
| Boost Diode | Blocking Diode |
|---|---|
Use Scenario: Used in step-up DC-DC converters to transfer energy from input inductor to output capacitor during switch-off phase. IC Role / Device Role / Timing Role: Unidirectional current path enabling voltage gain; conducts only when switch is off and inductor voltage polarity reverses. Use Value: 0.50V VF minimizes voltage loss across diode, preserving output regulation and efficiency at 3A load currents. | Use Scenario: Placed between parallel power sources (e.g., battery and USB supply) to prevent backfeed and cross-conduction. IC Role / Device Role / Timing Role: Reverse-biased isolator that blocks current flow from higher-voltage source to lower-voltage source. Use Value: 0.10mA IR at 25°C ensures negligible standby drain, extending battery life in dual-input portable systems. |
| Recirculating Diode | Output Rectifier in SMPS |
Use Scenario: Connected across inductive loads (e.g., solenoids, relays) to clamp flyback voltage spikes during turn-off. IC Role / Device Role / Timing Role: Freewheeling path for stored inductor energy; conducts transient current until magnetic field collapses. Use Value: Fast Schottky response (no reverse recovery time) eliminates voltage overshoot and EMI from slow PN diode recovery. | Use Scenario: Secondary-side rectifier in isolated flyback or forward converters delivering regulated 3.3V/5V/12V outputs. IC Role / Device Role / Timing Role: Converts transformer AC output to DC; conducts during transformer secondary half-cycle. Use Value: 60°C/W RθJA allows full 3A output without heatsink on standard 1"×1" PCB, simplifying cost-sensitive power supply designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS32 (Micro Commercial Components) | Same 20V VRRM, 3A IO, SMA package; VF = 0.50V @ 3A but IR = 0.50mA @ 20V/25°C - 5× higher leakage. | Less suitable for high-temperature or ultra-low-standby designs due to elevated IR. | Select B320AE-13 where IR < 0.15mA is required above 85°C ambient. |
| SB320 (ON Semiconductor) | 20V VRRM, 3A IO, SMA; VF = 0.52V @ 3A, IR = 0.15mA @ 20V/25°C; RθJA = 65°C/W - slightly worse thermal resistance. | Acceptable in moderate-temperature applications but may require larger copper area for same 3A thermal margin. | Prefer B320AE-13 when board space is constrained and thermal resistance ≤60°C/W is mandatory. |
Compared with SS32 and SB320, B320AE-13 delivers the lowest combination of forward voltage and reverse leakage at 25°C, along with superior thermal resistance - making it optimal for space- and efficiency-critical 3A rectification where ambient temperatures exceed 70°C.
Availability
B320AE-13 is available at Aetrix Electronics and suitable for boost diode, blocking diode, and recirculating diode applications requiring stable component supply, consistent thermal performance, and RoHS/Green compliance in high-volume production.
Supply support for B320AE-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, specializing in high-efficiency power management, signal integrity, and protection solutions.
The B320AE-13 belongs to Diodes' Schottky rectifier product line, engineered specifically for low-VF, high-reliability rectification in space-constrained DC-DC converters and industrial power supplies.
FAQ
What is the maximum junction temperature for continuous operation of the B320AE-13?
The B320AE-13 has a rated operating junction temperature range of –55°C to +150°C. Continuous operation at +150°C is permitted provided the device's thermal design (e.g., PCB copper area, ambient temperature, and power dissipation) maintains actual TJ within this limit - verified via RθJA = 60°C/W on standard FR-4.
Is the B320AE-13 suitable for automotive applications?
The B320AE-13 is not AEC-Q101 qualified per Diodes' documentation. While it operates across –55°C to +150°C and meets RoHS/Green standards, automotive use requires explicit AEC-Q101 qualification and PPAP support - which Diodes offers for designated automotive-grade variants, not this standard part.
Does the B320AE-13 have a specified reverse recovery time (trr)?
No - as a Schottky barrier rectifier, the B320AE-13 has no minority-carrier storage and therefore no defined reverse recovery time. Its switching is governed solely by junction capacitance (CT = 140 pF at 4V), enabling near-instantaneous turn-off without recovery loss or ringing.
Can the B320AE-13 be used in place of a PN junction rectifier like the 1N5822?
Yes - the B320AE-13 replaces 1N5822 (3A, 40V) in 20V-rated circuits, offering lower VF (0.50V vs. 0.9V typical) and faster switching. However, its 20V VRRM is half that of the 1N5822, so substitution is valid only where peak reverse voltage remains ≤20V.
B320AE-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
B320AE-13 FAQ
1.How can I place an order for B320AE-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for B320AE-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 B320AE-13 reliable?
The price and inventory of B320AE-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B320AE-13 is usually 5 days.
3.What payment methods are accepted for B320AE-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B320AE-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B320AE-13?
B320AE-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B320AE-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 B320AE-13?
For technical support, including B320AE-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B320AE-13 requirements.
6.How does Aetrix verify that B320AE-13 is sourced from the original manufacturer or authorized distributors?
All B320AE-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 B320AE-13 meets industry standards.
7.What is the process for return or replacement of B320AE-13?
All B320AE-13 units undergo pre-shipment inspection (PSI). If there is an issue with B320AE-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 B320AE-13 part is unused and in its original packaging.
Return procedure for B320AE-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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