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Diodes Incorporated B330A-13-F
- Part No.:
- B330A-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
B330A-13-F.pdf
- Description:
- DIODE SCHOTTKY 30V 3A SMA
- Quantity:
- Payment:
- Shipping:
Inventory:35,841
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Product details
Overview
B330A-13-F from Diodes Incorporated is a 30 V, 3.0 A surface-mount Schottky barrier rectifier in SMA package, featuring 0.50 V max forward voltage at 3 A and 0.5 mA max reverse leakage at rated voltage. It delivers low power loss and high efficiency for DC-DC converters, freewheeling diode applications, and polarity protection circuits in automotive and industrial power supplies.
For engineers reviewing the B330A-13-F datasheet, B330A-13-F pinout, B330A-13-F application, or B330A-13-F equivalent, key selection criteria include its 30 V reverse blocking rating, thermal resistance (140 °C/W junction-to-ambient), RoHS-compliant lead-free plating, AEC-Q101 qualification, and cathode-band polarity marking.
Technical Context
This Schottky rectifier uses guard ring die construction to enhance transient voltage immunity and improve reliability under repetitive surge conditions. Its low VF (≤0.50 V @ 3 A) minimizes conduction losses in high-frequency switching topologies, while its 80 A non-repetitive peak forward surge current supports robust operation during load transients.
The device operates across –55 °C to +150 °C junction temperature range and is qualified to AEC-Q101 standards, confirming suitability for automotive-grade power management. Thermal performance is specified with two RθJA values (140 °C/W on FR-4, 100 °C/W on glass epoxy), reflecting real-world PCB layout dependencies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - maximum repetitive reverse voltage; defines safe DC blocking capability in 24 V system rails |
| IO | 3.0 A - average rectified output current at TT = +100 °C; sets continuous power handling limit |
| VF (max) | 0.50 V @ 3.0 A - ensures ≤1.5 W conduction loss per diode in high-efficiency buck converter outputs |
| IR (max) | 0.5 mA @ 30 V - low leakage preserves battery runtime in always-on polarity protection circuits |
| IFSM | 80 A - withstands single half-sine surge (8.3 ms); supports motor drive flyback energy dissipation |
| RθJA | 140 °C/W - requires ≥25 mm² copper pad on FR-4 to maintain TJ < 150 °C at full load |
| Package | SMA - industry-standard surface-mount outline (4.0–4.6 mm length, 2.29–2.92 mm width) compatible with automated pick-and-place |
Pinout & Package
SMA package: molded plastic case, cathode band marking, matte-tin lead-free terminals, UL 94V-0 flammability rating, 0.064 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in synchronous buck); must route with low-inductance trace |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to output rail or ground return path; determines polarity protection direction |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves ESD and surge immunity without external TVS; validated per AEC-Q101 stress tests |
| Low forward voltage (0.50 V max) | Reduces power loss by ~30% vs. comparable silicon rectifiers at 3 A, directly improving converter efficiency |
| AEC-Q101 qualification | Confirms reliability for automotive under-hood applications including engine control and lighting modules |
| Lead-free, halogen-free "Green" construction | Meets EU RoHS 2 and JEDEC J-STD-020 moisture sensitivity Level 1 for reflow compatibility |
Applications
| Automotive LED Headlamp Driver | Industrial 24 V DC-DC Converter |
|---|---|
Use Scenario: Freewheeling path in synchronous buck regulator powering high-brightness LEDs. IC Role / Device Role / Timing Role: Schottky rectifier providing low-loss current recirculation during high-side MOSFET off-time. Use Value: 0.50 V VF limits power dissipation to 1.5 W at 3 A, enabling compact heatsinkless design in sealed headlamp housing. | Use Scenario: Output rectification in isolated flyback converter supplying 5 V/3 A to PLC I/O modules. IC Role / Device Role / Timing Role: Primary-side synchronous rectifier replacing diode+MOSFET controller; used as passive clamp diode. Use Value: 30 V VRRM provides 25% margin over 24 V input transients, ensuring reliable operation during load dump events. |
| USB-C Power Delivery Polarity Protection | Telecom DC Power Distribution Board |
Use Scenario: Reverse-voltage blocking at USB-C port input to prevent damage from miswired adapters. IC Role / Device Role / Timing Role: Unidirectional polarity guard diode placed in series with VBUS line. Use Value: 0.5 mA IR at 20 V ensures negligible standby current draw, preserving battery life in portable PD sink devices. | Use Scenario: OR-ing diode in redundant 48 V telecom power feed combining two hot-swap controllers. IC Role / Device Role / Timing Role: Low-VF pass element minimizing voltage drop between parallel power sources. Use Value: 3.0 A IO rating supports continuous 3 A load sharing; SMA footprint enables dense dual-diode placement on backplane. |
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 (max @ 3 A); RθJA = 130 °C/W | Slightly higher conduction loss; tighter thermal resistance improves margin on small pads | Select when board space allows smaller thermal pad or when Vishay's qualification history is preferred |
| SS33 (ON Semiconductor) | 30 V VRRM, 3 A IO, VF = 0.55 V (max @ 3 A); not AEC-Q101 qualified | Lacks automotive reliability validation; suitable only for commercial-grade systems | Choose for cost-sensitive consumer power supplies where AEC-Q101 is not required |
Compared with SB330-E3/52T and SS33, B330A-13-F offers the lowest forward voltage (0.50 V) and formal AEC-Q101 qualification-critical for automotive and industrial designs requiring long-term reliability under thermal cycling and surge stress.
Availability
B330A-13-F is available at Aetrix Electronics and suitable for automotive LED drivers, industrial 24 V DC-DC converters, and telecom power distribution boards requiring stable component supply and long-lifecycle support.
Supply support for B330A-13-F 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 and manufacturing operations across Asia and the Americas.
The B3xxA series belongs to Diodes' high-reliability Schottky rectifier product line, engineered specifically for efficient, low-noise power conversion in automotive, industrial, and communications infrastructure applications.
FAQ
What is the maximum junction temperature for continuous operation of B330A-13-F?
The B330A-13-F has a rated operating junction temperature range of –55 °C to +150 °C. For continuous 3.0 A operation, thermal design must ensure TJ remains ≤150 °C-achievable with ≥25 mm² copper pad on FR-4 (RθJA = 140 °C/W) and ambient ≤75 °C.
Is B330A-13-F suitable for use in automotive under-hood applications?
Yes. B330A-13-F is qualified to AEC-Q101 standards, including high-temperature operating life (HTOL), temperature cycling, and unclamped inductive switching tests. Its –55 °C to +150 °C operating range and guard ring die construction meet requirements for engine control units and lighting modules.
How does the cathode band marking align with the SMA package pinout?
The cathode band on the B330A-13-F SMA package identifies the cathode terminal, located at the end of the body opposite the anode. When viewed from the top with marking side up and band on the left, the left lead is cathode and right lead is anode-consistent with JEDEC standard SMA orientation.
Can B330A-13-F replace B320A-13-F in existing designs?
Yes, with design verification. B330A-13-F shares identical SMA package, pinout, and thermal characteristics with B320A-13-F, but offers higher 30 V VRRM (vs. 20 V) and same 0.50 V VF. It provides improved voltage margin in 24 V systems without layout changes, though layout parasitics should be rechecked for higher-voltage transients.
B330A-13-F 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):
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
B330A-13-F FAQ
1.How can I place an order for B330A-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for B330A-13-F 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 B330A-13-F reliable?
The price and inventory of B330A-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B330A-13-F is usually 5 days.
3.What payment methods are accepted for B330A-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B330A-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B330A-13-F?
B330A-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B330A-13-F 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 B330A-13-F?
For technical support, including B330A-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B330A-13-F requirements.
6.How does Aetrix verify that B330A-13-F is sourced from the original manufacturer or authorized distributors?
All B330A-13-F 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 B330A-13-F meets industry standards.
7.What is the process for return or replacement of B330A-13-F?
All B330A-13-F units undergo pre-shipment inspection (PSI). If there is an issue with B330A-13-F, 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 B330A-13-F part is unused and in its original packaging.
Return procedure for B330A-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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