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Diodes Incorporated B330-13
- Part No.:
- B330-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
B330-13.pdf
- Description:
- DIODE SCHOTTKY 30V 3A SMC
- Quantity:
- Payment:
- Shipping:
Inventory:8,147
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Product details
Overview
B330-13 from Diodes Incorporated is a 30 V, 3.0 A surface-mount Schottky barrier rectifier in SMC package, with maximum forward voltage of 0.50 V at 3.0 A and reverse leakage current ≤0.1 mA at 25°C, designed for low-voltage, high-frequency polarity protection and freewheeling in DC power supplies and motor drives.
For engineers reviewing the B330-13 datasheet, B330-13 pinout, B330-13 application, or B330-13 equivalent, key selection criteria include its 30 V peak repetitive reverse voltage, 100 A non-repetitive surge rating, 20 °C/W junction-to-terminal thermal resistance, RoHS-compliant lead-free plating, and JEDEC-qualified reliability for commercial and industrial environments.
Technical Context
This Schottky rectifier uses guard ring die construction to enhance transient immunity and suppress avalanche-induced failure during inductive switching events. Its low forward voltage drop and fast recovery (inherently <10 ns) minimize conduction loss and switching loss in high-frequency DC/DC converters and synchronous rectification circuits.
The device operates across -55°C to +150°C junction temperature range and features 90 °C/W junction-to-ambient thermal resistance on standard glass-epoxy PCBs. Its 200 pF capacitance at 4 V reverse bias supports stable performance in EMI-sensitive freewheeling paths without requiring external snubbers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in polarity protection and flyback clamp applications |
| IO | 3.0 A - Average rectified output current; supports continuous 3.0 A DC load in ambient up to +75°C with proper PCB copper area |
| VF Max | 0.50 V @ 3.0 A - Low conduction loss enables >92% efficiency in 5–12 V input DC/DC stages |
| IR Max | 0.1 mA @ 30 V, 25°C - Minimal leakage preserves battery life in always-on backup power rails |
| IFSM | 100 A @ 8.3 ms - Withstands motor startup surges and capacitor inrush without degradation |
| RθJT | 20 °C/W - Enables direct thermal coupling to heatsink pads for sustained 3 A operation |
Pinout & Package
Package: SMC (DO-214AB), molded plastic body with matte tin-plated terminals, cathode band marking, moisture sensitivity level 1 per J-STD-020, weight ≈0.21 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal under forward bias | Connected to lower-potential side (e.g., ground or return path) in polarity protection; must be routed with low-inductance trace |
| Cathode | Current exit terminal under forward bias; marked with band | Connected to positive rail input; serves as clamping node in freewheeling diode configuration |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves ESD and surge robustness by preventing edge breakdown during transient overvoltage events |
| Low forward voltage (0.50 V) | Reduces power dissipation to ≤1.5 W at 3 A, enabling compact layout without forced air cooling |
| 100 A surge rating | Supports reliable operation in brushed DC motor H-bridge outputs and solenoid drivers with high dI/dt |
| RoHS-compliant & halogen-free | Meets IPC-1752A material declaration requirements for automotive and industrial end equipment |
Applications
| Power Supply Polarity Protection | DC Motor Freewheeling |
|---|---|
Use Scenario: Prevents damage from reverse battery connection in 12 V automotive accessory modules and industrial PLC I/O cards. IC Role / Device Role / Timing Role: Unidirectional current gate placed between input connector and main regulator IC. Use Value: Blocks reverse current flow while adding only 0.5 V drop in normal operation, preserving system efficiency. | Use Scenario: Suppresses inductive kickback in brushed 24 V DC motors used in HVAC actuators and conveyor controls. IC Role / Device Role / Timing Role: Freewheeling path across motor winding during MOSFET turn-off. Use Value: Limits voltage spike to ≤30 V, eliminating need for TVS clamps and reducing EMI emissions. |
| Synchronous Rectifier Auxiliary | Low-Voltage DC/DC Output Clamp |
Use Scenario: Provides auxiliary rectification in secondary-side synchronous buck converter designs where main FET fails open. IC Role / Device Role / Timing Role: Standby diode parallel to synchronous MOSFET, conducting only during dead-time or fault conditions. Use Value: Ensures continuous output regulation during gate driver faults without output collapse. | Use Scenario: Clamps output overshoot during load dump transients in 5 V/3.3 V point-of-load regulators. IC Role / Device Role / Timing Role: Voltage limiter connected between output rail and ground reference. Use Value: Limits overshoot to 30 V with sub-ns response, protecting downstream logic and analog ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB330-E3/52T (Vishay) | Same 30 V VRRM, 3 A IO, but VF = 0.52 V @ 3 A; RθJA = 95 °C/W vs. 90 °C/W | Slightly higher thermal resistance requires larger copper area for same current derating | Prefer B330-13 when board space is constrained and thermal margin is tight |
| SS33 (ON Semiconductor) | 30 V VRRM, 3 A IO, VF = 0.55 V @ 3 A; IR = 0.5 mA @ 25°C (5× higher leakage) | Higher leakage reduces suitability in battery-backed standby circuits | Prefer B330-13 for always-on systems where quiescent current budget is <100 µA |
Compared with SB330-E3/52T and SS33, B330-13 delivers lower forward voltage and tighter leakage control within identical SMC footprint, making it optimal for thermally dense 12 V–24 V industrial power rails where efficiency and long-term reliability are prioritized.
Availability
B330-13 is available at Aetrix Electronics and suitable for polarity protection, freewheeling diode, and low-voltage DC/DC clamp applications requiring stable component supply, consistent parametric performance, and full RoHS/halogen-free compliance.
Supply support for B330-13 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, serving industrial, computing, consumer, and communications markets with high-reliability components.
The B320–B360 series belongs to Diodes' general-purpose Schottky rectifier product line, engineered for cost-effective, high-efficiency AC/DC and DC/DC conversion in commercial-grade power systems.
FAQ
What is the maximum junction temperature for continuous operation of B330-13?
The B330-13 has a specified operating junction temperature range of -55°C to +150°C. For continuous 3.0 A operation, thermal design must ensure junction temperature remains ≤150°C, typically achieved using ≥25 mm² of 2 oz copper on both sides of the PCB with thermal vias under the SMC pad.
Does B330-13 require a heatsink for 3 A DC current handling?
No dedicated heatsink is required if mounted on a PCB with ≥25 mm² of 2 oz copper per terminal and thermal vias. At 3.0 A and 25°C ambient, junction temperature rises ~60°C above ambient (3.0 A × 0.5 V × 20 °C/W = 30°C self-heating + 30°C conduction rise), staying well below 150°C.
Is B330-13 suitable for automotive applications?
The standard B330-13 is qualified to JEDEC standards for commercial reliability. For automotive use, Diodes offers the AEC-Q200-qualified B330Q-13 variant; the -13 version is not certified for under-hood or safety-critical vehicle systems.
How does the guard ring structure improve transient performance?
The guard ring die construction prevents premature edge breakdown during voltage transients by redistributing electric field stress away from the active junction periphery, increasing the device's ability to withstand repetitive 100 A surge events without parameter shift or catastrophic failure.
B330-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 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:
- 500 µA @ 30 V
- Capacitance @ Vr, F:
- 200pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
- Operating Temperature - Junction:
- -55°C ~ 125°C
B330-13 FAQ
1.How can I place an order for B330-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for B330-13 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 B330-13 reliable?
The price and inventory of B330-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B330-13 is usually 5 days.
3.What payment methods are accepted for B330-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B330-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B330-13?
B330-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B330-13 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 B330-13?
For technical support, including B330-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B330-13 requirements.
6.How does Aetrix verify that B330-13 is sourced from the original manufacturer or authorized distributors?
All B330-13 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 B330-13 meets industry standards.
7.What is the process for return or replacement of B330-13?
All B330-13 units undergo pre-shipment inspection (PSI). If there is an issue with B330-13, 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 B330-13 part is unused and in its original packaging.
Return procedure for B330-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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