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Diodes Incorporated B280-13
- Part No.:
- B280-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
B280-13.pdf
- Description:
- DIODE SCHOTTKY 80V 2A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:9,151
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Product details
Overview
B280-13 from Diodes Incorporated is a 2.0A, 80V peak repetitive reverse voltage Schottky barrier rectifier in SMB package, featuring low forward voltage (0.79 V @ 2.0A, 25°C), 50A non-repetitive surge capability, and 15°C/W junction-to-terminal thermal resistance-designed for high-frequency inverters, free-wheeling diode applications, and polarity protection circuits.
For engineers reviewing the B280-13 datasheet, B280-13 pinout, B280-13 application, or B280-13 equivalent, key selection criteria include forward voltage drop at rated current, thermal resistance under PCB-mount conduction cooling, surge robustness in inductive switching, and RoHS-compliant lead-free plating compatibility with automated reflow assembly.
Technical Context
This discrete Schottky rectifier uses guard ring die construction to enhance transient immunity and suppress leakage-induced failure in harsh environments. Its low VF and fast recovery enable high-efficiency operation in 60Hz–100kHz power conversion stages without minority-carrier storage delay.
The SMB package supports surface-mount reflow with 260°C/10s soldering tolerance and provides defined thermal path via copper terminals-junction-to-terminal resistance is specified at 15°C/W under terminal-isotherm conditions, enabling accurate thermal modeling for board-level derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 80 V - Maximum peak reverse voltage before breakdown; sets safe operating limit for 56 V RMS AC input or 63 V DC blocking. |
| IO @ TT=125°C | 2.0 A - Average rectified output current with terminal temperature held at 125°C; defines continuous conduction capability under heatsink-limited conditions. |
| VFM @ 2.0A, 25°C | 0.79 V - Forward voltage at rated DC current; directly determines conduction loss (1.58 W) and thermal load in linear-regulator or freewheeling paths. |
| IFSM (8.3ms) | 50 A - Non-repetitive surge rating per JEDEC method; supports inrush current handling in SMPS startup or motor commutation spikes. |
| RJT | 15 °C/W - Junction-to-terminal thermal resistance; enables calculation of junction temperature rise above terminal temperature for thermal design validation. |
| CT @ 1 MHz | 75 pF - Typical junction capacitance at 4 V reverse bias; impacts high-frequency switching losses and EMI filter interaction in DC-DC converters. |
Pinout & Package
SMB (DO-214AA) surface-mount package: molded plastic case (UL 94V-0), cathode band marking, solder-plated terminals compliant with MIL-STD-202 Method 208. Dimensions: 3.30–3.94 mm (L) × 4.06–4.57 mm (W) × 1.96–2.21 mm (H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential node (e.g., switch node in buck converter); must handle full load current and surge pulses. |
| Cathode | Current exit point during forward conduction; marked with band | Connected to higher-potential rail (e.g., output capacitor positive); serves as reference for reverse voltage rating and leakage path. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves transient voltage immunity and reduces parameter drift under ESD or lightning-induced surges. |
| Low VF at 2.0A (0.79 V) | Reduces conduction loss by ~30% vs. comparable 1N5822, lowering thermal stress in compact layouts. |
| 50A IFSM rating | Supports reliable operation during 60Hz half-sine surges up to 3 cycles without degradation-verified per JEDEC test method. |
| RoHS-compliant matte tin plating | Enables lead-free reflow compatibility (260°C/10s) without intermetallic formation or dewetting risk. |
Applications
| DC-DC Converter Freewheeling Diode | AC-DC Input Polarity Protection |
|---|---|
Use Scenario: Used as the catch diode in 12 V input, 5 V/2 A buck converter operating at 200 kHz. IC Role / Device Role / Timing Role: Provides low-loss current path during high-side MOSFET off-time; conducts only during discontinuous conduction mode transitions. Use Value: 0.79 V VF minimizes average conduction loss (≤1.6 W), reducing heatsink requirement and improving efficiency over silicon alternatives. | Use Scenario: Placed in series with +12 V supply line to prevent damage from reversed battery connection in automotive infotainment modules. IC Role / Device Role / Timing Role: Acts as series-blocking diode; remains reverse-biased during normal operation and conducts only during fault condition. Use Value: 80 V VRRM exceeds 12 V system's worst-case load-dump transients (ISO 7637-2 Pulse 5a), ensuring no breakdown during reverse polarity events. |
| High-Frequency Inverter Output Rectification | Inductive Load Flyback Suppression |
Use Scenario: Rectifies 30 kHz square-wave output from resonant LLC inverter feeding LED driver stage. IC Role / Device Role / Timing Role: Converts high-frequency AC to DC; switches synchronously with transformer secondary waveform zero-crossings. Use Value: 75 pF junction capacitance limits displacement current and RF noise generation, easing EMI filter design versus higher-C alternatives. | Use Scenario: Suppresses back-EMF spike across 24 V solenoid coil in industrial PLC output module. IC Role / Device Role / Timing Role: Clamps inductive kickback voltage to ≤80 V while conducting stored energy into return path. Use Value: 50 A IFSM withstands 10 ms solenoid turn-off transients without thermal runaway, validated per JEDEC surge test protocol. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS28-E3/57T (Vishay) | Same SMB package, 80 V VRRM, but VF = 0.85 V @ 2.0A and RJT = 18°C/W | Higher conduction loss and thermal resistance reduce margin in thermally constrained designs | Prefer B280-13 where board space limits heatsinking or efficiency >88% is required |
| SB280-E3/57T (Vishay) | Identical electrical specs but uses different die process; IRM = 1.0 mA @ 25°C (vs. 0.5 mA for B280-13) | Slightly higher leakage may affect standby power in battery-backed systems | Acceptable for line-powered applications; verify leakage impact in <10 µA quiescent current designs |
Compared with SS28-E3/57T and SB280-E3/57T, B280-13 delivers lower forward voltage and tighter leakage control in the same footprint-making it preferable for thermally sensitive, high-efficiency, or low-quiescent-power applications where SMB mounting is mandated.
Availability
B280-13 is available at Aetrix Electronics and suitable for DC-DC converter freewheeling, AC-DC polarity protection, and inductive flyback suppression requiring stable component supply across automotive, industrial control, and LED lighting production programs.
Supply support for B280-13 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 centers across Asia and manufacturing in China, Taiwan, and the U.S.
The B270–B2100 series targets cost-sensitive, high-volume power rectification needs-optimized for automated SMT assembly, thermal reliability in unheatsinked layouts, and compliance with RoHS and automotive transient standards.
FAQ
What is the maximum allowable junction temperature for B280-13?
The absolute maximum junction temperature is +150°C, as specified in the operating temperature range. This limit applies under steady-state conditions with terminal temperature maintained at or below 125°C per the derating curve. Exceeding this value risks permanent parametric shift or metallization failure.
Can B280-13 be used in place of a standard PN junction rectifier like 1N5822?
Yes, B280-13 replaces 1N5822 in most applications due to identical SMB package, higher surge rating (50 A vs. 25 A), and lower VF (0.79 V vs. 0.9 V). However, its higher reverse leakage at elevated temperature requires verification in high-impedance or low-power standby circuits.
Is the cathode band orientation standardized on the SMB package?
Yes-the cathode band is located on the same side as the device marking (e.g., "B280") and aligns with the cathode terminal per JEDEC DO-214AA mechanical drawing. Visual inspection confirms cathode placement prior to reflow, and automated optical inspection (AOI) systems use this band for polarity verification.
Does B280-13 meet automotive qualification standards such as AEC-Q101?
No-B280-13 is not AEC-Q101 qualified. It meets industrial-grade reliability requirements and RoHS compliance, but lacks the extended temperature cycling, HTRB, and ESD testing required for automotive use. For AEC-Q101 applications, consider Diodes' APx80xQ series Schottky rectifiers.
B280-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 80 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 790 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 7 mA @ 80 V
- Capacitance @ Vr, F:
- 75pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
- Operating Temperature - Junction:
- -65°C ~ 150°C
B280-13 FAQ
1.How can I place an order for B280-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for B280-13 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 B280-13 reliable?
The price and inventory of B280-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B280-13 is usually 5 days.
3.What payment methods are accepted for B280-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B280-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B280-13?
B280-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B280-13 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 B280-13?
For technical support, including B280-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B280-13 requirements.
6.How does Aetrix verify that B280-13 is sourced from the original manufacturer or authorized distributors?
All B280-13 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 B280-13 meets industry standards.
7.What is the process for return or replacement of B280-13?
All B280-13 units undergo pre-shipment inspection (PSI). If there is an issue with B280-13, 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 B280-13 part is unused and in its original packaging.
Return procedure for B280-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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