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Diodes Incorporated B320CE-13
- Part No.:
- B320CE-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
B320CE-13.pdf
- Description:
- DIODE SCHOTTKY 20V 3A SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,728
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Product details
Overview
B320CE-13 from Diodes Incorporated is a 20 V, 3 A surface-mount Schottky barrier rectifier in SMC package, featuring 0.5 V max forward voltage at 3 A and 0.10 mA max reverse leakage at 20 V/25°C, optimized for high-efficiency DC-DC boost stages in power supplies.
For engineers reviewing the B320CE-13 datasheet, B320CE-13 pinout, B320CE-13 application, or B320CE-13 equivalent, key selection criteria include thermal resistance (RθJC = 30°C/W), junction capacitance (140 pF @ 4 V), and high-temperature reverse leakage stability up to +150°C ambient.
Technical Context
This Schottky rectifier uses a planar metal-silicon junction to achieve low forward voltage drop and fast switching with no minority-carrier storage delay. Its SMC package provides enhanced thermal dissipation over SMB variants, supporting higher continuous current in compact layouts.
Designed for unidirectional conduction in low-voltage, high-current rectification, it operates across –55°C to +150°C with stable leakage performance - critical for automotive and industrial power converters where thermal runaway must be avoided.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 20 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in boost or flyback output stage |
| IO | 3 A - Average rectified output current; supports continuous 3 A DC load without derating at TA ≤ 75°C |
| VF (max) | 0.50 V @ 3 A, 25°C - Low conduction loss improves efficiency >95% in 5 V–12 V input converters |
| IR (max) | 0.10 mA @ 20 V, 25°C - Minimal leakage preserves standby power in always-on systems |
| RθJC | 30°C/W - Enables direct heatsinking to PCB copper; allows 3 A operation with <40°C junction rise above case |
| CT | 140 pF @ 4 V, 1 MHz - Low junction capacitance minimizes switching noise and EMI in high-frequency SMPS |
| TJ range | –55°C to +150°C - Rated for under-hood automotive and industrial environments without derating |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin–annealed copper leadframe; cathode indicated by band on body; weight ≈ 0.21 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to source/switch node in boost topology; requires low-inductance layout to minimize ringing |
| Cathode | Current exit point; marked with band | Connected to output rail; serves as reference for voltage sensing and feedback networks |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | VF ≤ 0.5 V @ 3 A reduces conduction loss by >30% vs. standard PN rectifiers at same current |
| High-temp leakage control | IR = 0.10 mA @ 25°C and ≤30 mA @ 45 V/125°C ensures reliability in thermally constrained enclosures |
| Thermal resistance | RθJC = 30°C/W enables 3 A operation with <25°C temperature rise over heatsinked PCB area |
| Green construction | Halogen- and antimony-free, RoHS-compliant molding compound meets IPC-1752A material declaration requirements |
Applications
| Boost Diode | Blocking Diode |
|---|---|
Use Scenario: Step-up DC-DC converter in USB PD adapters delivering 9 V/15 V/20 V from 5 V input. IC Role / Device Role / Timing Role: Unidirectional current path during switch off-time; clamps inductive kickback and transfers energy to output capacitor. Use Value: 0.5 V VF limits power loss to <1.5 W at 3 A, enabling compact thermal design without forced air cooling. | Use Scenario: Solar charge controller preventing battery discharge through PV panel at night. IC Role / Device Role / Timing Role: Reverse-polarity isolation element; blocks reverse current flow while sustaining open-circuit panel voltage. Use Value: 0.10 mA IR at 25°C minimizes overnight battery drain - critical for off-grid systems with limited capacity. |
| Recirculating Diode | OR-ing Diode |
Use Scenario: Motor driver H-bridge freewheeling path during PWM dead-time. IC Role / Device Role / Timing Role: Provides low-loss return path for inductive current when both high-side and low-side FETs are off. Use Value: Fast recovery (no stored charge) eliminates reverse recovery spikes, reducing EMI and gate drive stress on MOSFETs. | Use Scenario: Redundant 12 V power supply combining with ideal diode control. IC Role / Device Role / Timing Role: Passive OR-ing element ensuring seamless switchover between primary and backup rails. Use Value: Low RDS(on) equivalent (via VF) enables <50 mV forward drop at 2 A, minimizing voltage mismatch and cross-conduction risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS32H (ON Semiconductor) | Same 20 V/3 A rating; VF = 0.5 V @ 3 A, but RθJC = 40°C/W (SMA package) | Limited to lower ambient temps due to higher thermal resistance; unsuitable for sealed enclosures >85°C | Select when cost sensitivity outweighs thermal margin; verify PCB copper area for thermal relief |
| SB320 (Vishay) | Identical electrical specs; SMC package, but IR = 0.15 mA @ 20 V/25°C (vs. 0.10 mA for B320CE-13) | Marginally higher leakage may impact ultra-low-power standby in battery-backed systems | Prefer for legacy designs already qualified with SB320; validate leakage impact in final thermal environment |
Compared with SS32H and SB320, B320CE-13 delivers superior thermal performance (RθJC = 30°C/W) and lowest specified leakage (0.10 mA), making it optimal for space-constrained, high-ambient industrial power modules requiring long-term reliability.
Availability
B320CE-13 is available at Aetrix Electronics and suitable for boost diode, blocking diode, recirculating diode, and OR-ing diode applications requiring stable component supply across automotive, industrial, and consumer power electronics programs.
Supply support for B320CE-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-reliability power management and signal integrity solutions for industrial and automotive markets.
The B320CE-13 belongs to Diodes' Schottky rectifier product line, engineered for high-efficiency, high-temperature rectification in compact surface-mount power supplies and DC-DC converters.
FAQ
What is the maximum junction temperature for continuous operation?
The B320CE-13 is rated for continuous operation with junction temperature ranging from –55°C to +150°C. At 3 A DC current and ambient temperature of 75°C, the junction rise is approximately 30°C (using RθJA = 70°C/W), keeping TJ well within limit. Derating begins above 75°C ambient per Figure 4 in DS38600.
Is the B320CE-13 suitable for use in automotive under-hood applications?
Yes - its –55°C to +150°C operating range, AEC-Q200-compatible construction (green, halogen-free, matte tin finish), and stable leakage up to 125°C make it qualified for non-safety-critical under-hood power conversion, including engine control module auxiliary supplies and HVAC fan drivers.
How does the SMC package compare thermally to SMB for this device?
The SMC package offers RθJC = 30°C/W versus SMB's 50°C/W, enabling ~40% lower junction-to-case temperature rise at 3 A. This translates to higher sustained current capability or relaxed PCB copper requirements - especially valuable in multi-layer boards with limited thermal vias.
Can B320CE-13 replace B320BE-13 in existing designs?
Yes - both share identical electrical specifications and polarity marking. The only difference is package: B320BE-13 uses SMB (smaller footprint, higher RθJA), while B320CE-13 uses SMC (larger, better thermal performance). Layout change is required, but no circuit requalification is needed if thermal margins are sufficient.
B320CE-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- 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:
- SMC
- Operating Temperature - Junction:
- -55°C ~ 150°C
B320CE-13 FAQ
1.How can I place an order for B320CE-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for B320CE-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 B320CE-13 reliable?
The price and inventory of B320CE-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B320CE-13 is usually 5 days.
3.What payment methods are accepted for B320CE-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B320CE-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B320CE-13?
B320CE-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B320CE-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 B320CE-13?
For technical support, including B320CE-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B320CE-13 requirements.
6.How does Aetrix verify that B320CE-13 is sourced from the original manufacturer or authorized distributors?
All B320CE-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 B320CE-13 meets industry standards.
7.What is the process for return or replacement of B320CE-13?
All B320CE-13 units undergo pre-shipment inspection (PSI). If there is an issue with B320CE-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 B320CE-13 part is unused and in its original packaging.
Return procedure for B320CE-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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