Diodes Incorporated B220-13-F
- Part No.:
- B220-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
B220-13-F.pdf
- Description:
- DIODE SCHOTTKY 20V 2A SMB
- Quantity:
- Payment:

- Shipping:

Inventory:63,863
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Product details
Overview
B220-13-F from Diodes Incorporated is a 20 V, 2.0 A surface-mount Schottky barrier rectifier in SMB package, featuring 0.50 V forward voltage at 2.0 A, 50 A non-repetitive surge rating, and AEC-Q101 qualification for automotive-grade reliability-used in low-voltage DC/DC converter freewheeling paths and polarity protection circuits.
For engineers reviewing the B220-13-F datasheet, B220-13-F pinout, B220-13-F application, or B220-13-F equivalent, key selection criteria include forward voltage drop at rated current, thermal resistance (20 °C/W junction-to-lead), reverse leakage at 100 °C, peak repetitive reverse voltage margin, and RoHS-compliant lead-free plating compatibility with automated SMT assembly.
Technical Context
This Schottky diode employs guard ring die construction to suppress transient-induced avalanche breakdown and supports high-frequency switching up to several MHz due to low junction capacitance (200 pF at 40 V). Its low VF enables reduced conduction loss in 3.3 V–12 V power rails.
The device operates across –65 °C to +150 °C, with thermal derating beginning above 75 °C ambient (per Fig. 5), and maintains stable reverse leakage (<20 mA at rated VR and +100 °C) critical for battery-backed and always-on systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 20 V - Maximum peak repetitive reverse voltage; sets upper limit for safe blocking in 12 V nominal systems with transient margin. |
| IF(AV) | 2.0 A - Average forward current rating at TA = +25 °C; defines continuous DC output capability in freewheeling or OR-ing configurations. |
| VF @ 2.0 A | 0.50 V - Forward voltage drop at full rated current; directly determines conduction loss (1.0 W typical) and thermal load in compact layouts. |
| IFSM | 50 A - Non-repetitive surge current (8.3 ms half-sine); supports inrush and fault-current handling in power supply input stages. |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance (SMB); enables direct PCB copper pour heatsinking without external heatsink for ≤1.5 W dissipation. |
| IR @ VR, 100°C | 20 mA - Max reverse leakage at full rated voltage and elevated temperature; impacts standby power in always-on 12 V systems. |
| CT @ 40 V | 200 pF - Total junction capacitance at 40 V reverse bias; limits high-frequency switching speed and EMI generation in >1 MHz converters. |
Pinout & Package
SMB (DO-214AA) plastic surface-mount package with molded UL 94V-0 case, matte tin-plated terminals, cathode band polarity marking, and moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., switch node in buck converter); must be routed with low-inductance trace for high di/dt stability. |
| Cathode | Forward current exit / reverse voltage reference | Connected to higher-potential rail (e.g., output capacitor positive); cathode band identifies this terminal on top surface. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Suppresses edge avalanche during voltage transients, enabling reliable operation in unregulated 12 V automotive environments without external TVS. |
| AEC-Q101 qualification | Validated for automotive underhood applications including engine control modules and body electronics requiring extended temperature and lifetime reliability. |
| Lead-free, halogen-free "Green" finish | Meets RoHS 2 and JEDEC J-STD-020 Level 1 standards; compatible with Pb-free reflow profiles up to 260 °C/10 s at terminals. |
| Low thermal resistance (20 °C/W) | Allows direct thermal coupling to PCB copper pour-no thermal vias required for 2.0 A continuous operation at 75 °C ambient. |
Applications
| Automotive Body Control Module (BCM) | Industrial 24 V DC Power Supply |
|---|---|
Use Scenario: Reverse polarity protection at 24 V input of BCM microcontroller power rail. IC Role / Device Role / Timing Role: Unidirectional current gate preventing damage from accidental battery reversal during service. Use Value: 0.50 V VF minimizes voltage drop across protection path, preserving ≥23.5 V at MCU input under full 2.0 A load. | Use Scenario: Freewheeling diode in synchronous buck converter secondary side. IC Role / Device Role / Timing Role: Provides low-loss current path during high-side MOSFET off-time to maintain inductor current continuity. Use Value: 200 pF junction capacitance limits ringing and EMI at 500 kHz switching frequency, reducing need for snubber networks. |
| USB-C PD Power Delivery Adapter | Smart Meter Battery Backup Circuit |
Use Scenario: Output OR-ing diode in dual-input (AC/DC + battery) USB-C PD adapter. IC Role / Device Role / Timing Role: Enables seamless source switchover while blocking reverse current from battery to AC/DC rail. Use Value: 20 mA max IR at 100 °C ensures <10 µW standby leakage-critical for maintaining >10-year battery shelf life. | Use Scenario: Polarity protection and backfeed isolation for supercapacitor-based backup in smart meter RTC circuit. IC Role / Device Role / Timing Role: Prevents main 3.3 V rail from discharging into backup capacitor during power loss events. Use Value: Guard ring structure withstands 50 A surge from capacitor discharge transients without degradation over 100,000 cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB220-E3/52 (Vishay) | Same 20 V VRRM, 2.0 A IF, but VF = 0.52 V @ 2.0 A; RθJL = 22 °C/W (SMB). | Marginally higher conduction loss (1.04 W vs. 1.0 W); slightly reduced thermal headroom at 85 °C ambient. | Select when second-source validation required and 20 mV VF increase is acceptable in thermally constrained designs. |
| SS22 (ON Semiconductor) | 20 V VRRM, 2.0 A IF, VF = 0.51 V @ 2.0 A; IR = 10 mA @ 20 V, 25 °C (lower leakage at room temp). | Higher IR at 100 °C (30 mA) vs. B220-13-F's 20 mA-less suitable for high-temp battery backup. | Prefer for room-temperature OR-ing where low leakage dominates; avoid in under-hood automotive use above 85 °C. |
Compared with SB220-E3/52 and SS22, B220-13-F delivers the lowest high-temperature reverse leakage and tightest thermal resistance among 20 V/2 A SMB Schottkys-making it optimal for automotive and industrial applications demanding sustained reliability at elevated junction temperatures.
Availability
B220-13-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial 24 V power supplies, USB-C PD adapters, and smart meter battery backup circuits requiring stable component supply and AEC-Q101 compliance.
Supply support for B220-13-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, manufacturing, and sales operations across Asia, Europe, and North America.
The B220/A series belongs to Diodes' standard Schottky rectifier product line, engineered specifically for high-efficiency, low-VF power conversion in space-constrained surface-mount applications across automotive, industrial, and consumer markets.
FAQ
What is the maximum operating temperature for B220-13-F?
The B220-13-F has an operating junction temperature range of –65 °C to +150 °C. Its thermal derating curve (Fig. 4) shows that average forward current drops linearly above +75 °C ambient, reaching 1.0 A at +125 °C ambient when mounted on FR-4 with minimum recommended pad layout.
Is B220-13-F suitable for automotive applications?
Yes-B220-13-F is AEC-Q101 qualified and PPAP-capable. It meets automotive reliability requirements including high-temperature storage, temperature cycling, and surge robustness, and is explicitly listed in Diodes' automotive ordering table (B220A-13-F is SMA variant; B220-13-F is SMB variant, both qualified).
How does the guard ring construction improve performance?
The guard ring die structure surrounds the active junction to distribute electric field stress and prevent premature edge breakdown during voltage transients. This allows the device to sustain 50 A surge currents without avalanche failure and improves long-term reliability in noisy 12 V automotive systems.
What is the recommended PCB pad layout for B220-13-F?
Diodes recommends using the pad layout defined in AP02001 (SMB footprint), which specifies 5.0 mm × 2.5 mm solder pads with 1.8 mm center-to-center spacing. Thermal relief via patterns are not required due to the 20 °C/W RθJL-direct copper pour connection to the cathode pad provides sufficient heat dissipation for 2.0 A continuous operation.
B220-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 20 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 500 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 20 V
- Capacitance @ Vr, F:
- 200pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
- Operating Temperature - Junction:
- -65°C ~ 150°C
B220-13-F FAQ
1.How can I place an order for B220-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for B220-13-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 B220-13-F reliable?
The price and inventory of B220-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B220-13-F is usually 5 days.
3.What payment methods are accepted for B220-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B220-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B220-13-F?
B220-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B220-13-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 B220-13-F?
For technical support, including B220-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B220-13-F requirements.
6.How does Aetrix verify that B220-13-F is sourced from the original manufacturer or authorized distributors?
All B220-13-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 B220-13-F meets industry standards.
7.What is the process for return or replacement of B220-13-F?
All B220-13-F units undergo pre-shipment inspection (PSI). If there is an issue with B220-13-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 B220-13-F part is unused and in its original packaging.
Return procedure for B220-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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