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Diodes Incorporated B330A-13
- Part No.:
- B330A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
B330A-13.pdf
- Description:
- DIODE SCHOTTKY 30V 3A SMA
- Quantity:
- Payment:
- Shipping:
Inventory:8,593
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Product details
Overview
B330A-13 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, optimized for low-loss DC-DC converters and freewheeling paths in automotive and industrial power supplies.
For engineers reviewing the B330A-13 datasheet, B330A-13 pinout, B330A-13 application, or B330A-13 equivalent, key selection criteria include its 30 V reverse blocking rating, thermal resistance of 140 °C/W (junction-to-ambient), RoHS-compliant lead-free plating, AEC-Q101 qualification, and cathode-band polarity marking for automated assembly verification.
Technical Context
The B330A-13 employs guard ring die construction to suppress transient-induced avalanche breakdown and sustain reliable operation under repetitive surge conditions up to 80 A (8.3 ms half-sine). Its low VF enables high-efficiency rectification in 12 V and 24 V input DC-DC stages where conduction loss dominates thermal design.
Designed for surface-mount reflow assembly on FR-4 PCBs with minimum pad layout per AP02001, it operates from –55 °C to +150 °C junction temperature and exhibits 200 pF typical junction capacitance at 4 V reverse bias-critical for EMI control in high-frequency switching nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse voltage before breakdown; sets upper limit for DC bus or flyback clamp voltage |
| IO(AV) | 3.0 A @ TT = +100°C - Continuous average forward current derated for thermal management on standard PCB |
| VF(max) | 0.50 V @ IF = 3.0 A, TA = +25°C - Directly determines conduction loss (1.5 W max at full load) and heatsink requirements |
| IR(max) | 0.5 mA @ VRRM, TA = +25°C - Low leakage preserves efficiency in battery-backed or standby circuits |
| RθJA | 140 °C/W - Thermal resistance defining junction temperature rise above ambient; requires ≥100 mm² copper pour for full 3 A rating |
| CT | 200 pF @ VR = 4 V, f = 1 MHz - Junction capacitance influencing high-frequency switching noise and snubber design |
| IFSM | 80 A @ 8.3 ms half-sine - Surge capability supports inrush current handling in offline SMPS inputs |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte-tin plated terminals, cathode band marking, and UL 94V-0 flammability rating. Weight: 0.064 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., switch node in buck converter); must route with low-inductance trace |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; ties to output rail or ground return; defines polarity protection direction |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Suppresses edge breakdown during voltage transients, enabling robust operation in noisy automotive environments |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Lead-free & halogen-free | Meets RoHS 2 (2011/65/EU) and JEDEC JS709C green standards (<900 ppm Br/Cl, <1000 ppm Sb) |
| Low thermal resistance junction-to-terminal | RθJT = 25 °C/W - Enables efficient heat transfer to PCB copper when mounted with recommended pad layout |
| Moisture sensitivity level | MSL Level 1 per J-STD-020 - No bake required prior to reflow; supports standard SMT line handling |
Applications
| Automotive Body Control Module (BCM) | Industrial DC-DC Converter |
|---|---|
Use Scenario: Reverse polarity protection on 12 V supply input to microcontroller-based lighting control unit. IC Role / Device Role / Timing Role: Unidirectional blocking diode preventing damage during battery jump-start misconnection. Use Value: 0.50 V VF minimizes voltage drop across protection path, preserving >11.5 V at MCU under 3 A load. | Use Scenario: Output rectification in 48 V to 5 V synchronous buck converter for PLC I/O modules. IC Role / Device Role / Timing Role: Freewheeling diode clamping inductor current during high-side FET off-time. Use Value: 30 V VRRM safely handles 48 V bus transients; 200 pF CT limits high-frequency ringing in 500 kHz switching node. |
| Consumer USB-C Power Delivery Adapter | Telecom Remote Radio Unit (RRU) |
Use Scenario: Input OR-ing diode in dual-input (AC adapter + PoE) 20 V power path. IC Role / Device Role / Timing Role: Prevents backfeed between sources while enabling seamless switchover. Use Value: 3.0 A IO rating supports 65 W PD delivery; cathode-band marking ensures correct orientation in dense SMT layout. | Use Scenario: Bias supply rectification for GaN FET gate drivers in 4G/5G macro base station power stage. IC Role / Device Role / Timing Role: High-efficiency 24 V auxiliary rail generation from isolated flyback output. Use Value: AEC-Q101 qualification ensures long-term stability in thermally cycled outdoor enclosures (-40 °C to +85 °C ambient). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS33-E3/57T (Vishay) | Same 30 V VRRM, 3 A IO, but VF = 0.52 V max; RθJA = 130 °C/W; no AEC-Q101 qualification | Not qualified for automotive; suitable for commercial-grade AC-DC adapters | Select if cost-sensitive and AEC-Q101 not required; verify thermal margin with lower RθJA |
| SB330 (ON Semiconductor) | 30 V VRRM, 3 A IO, VF = 0.52 V max; RθJA = 125 °C/W; AEC-Q101 qualified; different marking code | Identical automotive qualification; slightly higher VF increases conduction loss by ~40 mW at 3 A | Prefer for second-source assurance in automotive programs; validate marking compatibility in AOI inspection |
Compared with SS33-E3/57T and SB330, the B330A-13 offers the lowest VF (0.50 V) among 30 V/3 A Schottkys, delivering best-in-class conduction efficiency, while maintaining full AEC-Q101 compliance and industry-standard SMA footprint for drop-in replacement in space-constrained designs.
Availability
B330A-13 is available at Aetrix Electronics and suitable for automotive body electronics, industrial DC-DC converters, and telecom power supplies requiring stable component supply, long-lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for B330A-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 B330A-13 belongs to Diodes' high-reliability Schottky rectifier product line, engineered specifically for automotive and industrial power conversion where low VF, robust surge handling, and extended temperature operation are critical.
FAQ
What is the maximum junction temperature for continuous operation of the B330A-13?
The B330A-13 has a specified operating junction temperature range of –55 °C to +150 °C. For continuous 3.0 A operation, thermal design must ensure TJ does not exceed +150 °C-achievable with proper PCB copper area (≥100 mm² per pad) and ambient temperature ≤+70 °C per Fig. 6 derating curve.
Is the B330A-13 compatible with lead-free reflow profiles?
Yes-the B330A-13 uses matte-tin lead-free plating and is qualified for standard IPC/JEDEC J-STD-020D reflow profiles, including peak temperatures up to 260 °C. Its MSL Level 1 rating means no pre-bake is required, supporting direct placement into high-volume SMT lines.
How does the guard ring structure improve reliability in automotive applications?
The guard ring die construction prevents premature edge breakdown during load-dump transients (e.g., ISO 7637-2 Pulse 5a), allowing the B330A-13 to sustain 30 V reverse bias under harsh electrical conditions without parametric shift or failure-key for BCM and infotainment power rails.
Can the B330A-13 replace the B320A-13 in an existing design?
Yes-both share identical SMA package, pinout, and thermal characteristics, but the B330A-13 offers higher 30 V VRRM versus 20 V for the B320A-13. Designers must verify that increased reverse voltage rating does not affect circuit behavior (e.g., snubber sizing) and that system transients remain within new 30 V margin.
B330A-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
B330A-13 FAQ
1.How can I place an order for B330A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for B330A-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 B330A-13 reliable?
The price and inventory of B330A-13 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 is usually 5 days.
3.What payment methods are accepted for B330A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B330A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B330A-13?
B330A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B330A-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 B330A-13?
For technical support, including B330A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B330A-13 requirements.
6.How does Aetrix verify that B330A-13 is sourced from the original manufacturer or authorized distributors?
All B330A-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 B330A-13 meets industry standards.
7.What is the process for return or replacement of B330A-13?
All B330A-13 units undergo pre-shipment inspection (PSI). If there is an issue with B330A-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 B330A-13 part is unused and in its original packaging.
Return procedure for B330A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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