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Diodes Incorporated B550C-13-F
- Part No.:
- B550C-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
B550C-13-F.pdf
- Description:
- DIODE SCHOTTKY 50V 5A SMC
- Quantity:
- Payment:
- Shipping:
Inventory:23,406
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Product details
Overview
B550C-13-F from Diodes Incorporated is a 50 V, 5.0 A surface-mount Schottky barrier rectifier in SMC package, featuring 0.70 V max forward voltage at 5.0 A and 0.5 mA max reverse leakage at rated VR, optimized for low-voltage, high-frequency freewheeling and polarity protection in DC/DC converters and power supplies.
For engineers reviewing the B550C-13-F datasheet, B550C-13-F pinout, B550C-13-F application, or B550C-13-F equivalent, key selection criteria include its 50 V peak repetitive reverse voltage, 100 A non-repetitive surge rating, 10 °C/W junction-to-terminal thermal resistance, RoHS-compliant lead-free plating, and JEDEC-qualified reliability for commercial and industrial power conversion designs.
Technical Context
This Schottky rectifier uses guard ring die construction to enhance transient robustness and suppress avalanche-induced failure during inductive switching events. Its low VF (0.70 V max) and low IR (0.5 mA @ 50 V) enable high-efficiency operation in 3.3 V–12 V output stages where conduction loss dominates.
The device operates across –55 °C to +150 °C with 50 °C/W junction-to-ambient thermal resistance on standard FR-4 PCBs. It supports automated SMT assembly and meets J-STD-020 moisture sensitivity Level 1, eliminating bake requirements prior to reflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - blocks up to 50 V reverse voltage without breakdown, suitable for 36 V nominal bus systems with margin |
| IO | 5.0 A - continuous average forward current rating at TA = +25°C with adequate heatsinking |
| VF Max | 0.70 V @ 5.0 A - limits conduction loss to ≤3.5 W per diode in high-current freewheel paths |
| IR Max | 0.5 mA @ 50 V, 25°C - ensures minimal standby power loss in polarity protection circuits |
| IFSM | 100 A @ 8.3 ms - withstands typical inrush and short-circuit surge currents in SMPS outputs |
| RθJT | 10 °C/W - enables direct thermal coupling to copper pads for predictable junction temperature estimation |
| CT | 300 pF @ 4 V, 1 MHz - low capacitance minimizes switching noise and EMI in high-frequency (>100 kHz) topologies |
Pinout & Package
Package: SMC (DO-214AB), molded plastic body with UL 94V-0 flammability rating, cathode indicated by band or notch, weight ≈0.21 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); must be routed with low-inductance trace |
| Cathode | Forward current exit point | Connected to output rail or ground return; serves as reference for reverse blocking path |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Suppresses edge breakdown during voltage transients, improving reliability in inductive load switching |
| Low VF / high efficiency | Reduces power dissipation by ≥30% vs. comparable PN rectifiers at 5 A, lowering thermal design burden |
| Lead-free & RoHS compliant | Meets EU Directive 2015/863/EU with <900 ppm Br/Cl and <1000 ppm Sb, enabling green product certification |
| JEDEC-qualified reliability | Validated per AEC-Q stress test standards for extended lifetime in industrial ambient conditions |
Applications
| DC/DC Converter Freewheeling | Polarity Protection |
|---|---|
Use Scenario: Used as the freewheeling diode in synchronous and non-synchronous buck converters delivering 3.3 V–12 V at up to 5 A. IC Role / Device Role / Timing Role: Provides low-loss current recirculation path during high-side MOSFET off-time; critical for maintaining regulation under light-load conditions. Use Value: 0.70 V VF reduces conduction loss by ~1.5 W vs. silicon diode alternatives, directly improving full-load efficiency by 1.2–1.8%. | Use Scenario: Placed in series with input power rail to prevent damage from reverse battery or supply connection. IC Role / Device Role / Timing Role: Acts as unidirectional current gate; conducts only when anode voltage exceeds cathode by >0.475 V. Use Value: Low 0.5 mA IR at 25°C ensures <1.5 mW standby loss in always-on systems, preserving battery life. |
| Low-Voltage Inverter Output | Re-circulating Diode in Motor Drivers |
Use Scenario: Employed in half-bridge inverter legs for 24 V BLDC motor control and LED driver applications. IC Role / Device Role / Timing Role: Clamps inductive kickback during PWM dead-time; handles bidirectional energy recovery in regenerative braking. Use Value: 100 A IFSM rating supports safe handling of motor stall currents without thermal runaway. | Use Scenario: Mounted across relay coils or brushed DC motor terminals to absorb back-EMF spikes. IC Role / Device Role / Timing Role: Provides fast, low-loss path for stored magnetic energy dissipation during turn-off transitions. Use Value: 300 pF CT and 10 °C/W RθJT minimize voltage overshoot and localized heating during repeated switching cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB550-E3/54 (Vishay) | Same 50 V VRRM, 5 A IO, but VF = 0.75 V max @ 5 A; slightly higher RθJA (55 °C/W) | Marginally lower efficiency in high-duty-cycle freewheeling; less thermal headroom on minimal copper | Select if Vishay sourcing preference exists and 0.05 V VF penalty is acceptable |
| SS5P5L (ON Semiconductor) | 50 V VRRM, 5 A IO, VF = 0.55 V typ @ 5 A, but IR = 1.0 mA @ 50 V; SMC-compatible but not identical footprint | Lower conduction loss but higher leakage may impact ultra-low-power standby performance | Prefer for efficiency-critical 12 V systems where leakage is not constrained |
Compared with SB550-E3/54 and SS5P5L, B550C-13-F delivers balanced trade-offs: lower VF than Vishay's part, lower IR than ON's part, and JEDEC-qualified reliability-making it optimal for cost-sensitive industrial power supplies requiring consistent long-term stability.
Availability
B550C-13-F is available at Aetrix Electronics and suitable for DC/DC converters, polarity protection circuits, and motor driver recirculation paths requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing.
Supply support for B550C-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 B520C–B560C series belongs to Diodes' general-purpose Schottky rectifier product line, engineered specifically for high-efficiency, low-voltage power conversion in commercial and industrial equipment where thermal robustness and assembly compatibility are essential.
FAQ
What is the maximum junction temperature for B550C-13-F?
The absolute maximum junction temperature is +150 °C, with continuous operation supported from –55 °C to +150 °C. Derating begins above +25 °C ambient per Figure 7; at 100 °C ambient, the maximum sustainable DC forward current drops to approximately 2.8 A with standard PCB heatsinking.
Is B550C-13-F suitable for automotive applications?
No-B550C-13-F is qualified for commercial and industrial use per JEDEC standards. For automotive-grade operation, Diodes offers the pin- and package-compatible B550CQ-13-F variant, which meets AEC-Q101 requirements and undergoes additional stress testing for under-hood environments.
Does B550C-13-F have a specified reverse recovery time (trr)?
No-Schottky barrier rectifiers like B550C-13-F are majority-carrier devices with no minority-carrier storage delay; they exhibit effectively zero reverse recovery time. This eliminates switching losses and EMI associated with trr in PN diodes, confirmed by absence of trr specification in DS13012 Rev. 18–2.
What is the recommended PCB pad layout for SMC package mounting?
Per Diodes' package outline documentation, the recommended SMC pad layout uses 6.90 mm × 4.40 mm copper pads with 2.50 mm spacing (X) and 9.40 mm overall length (X1). Thermal performance improves significantly with ≥8 mm² copper area per terminal, as specified in Note 5 for RθJA = 50 °C/W measurement conditions.
B550C-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 700 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 50 V
- Capacitance @ Vr, F:
- 300pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
- Operating Temperature - Junction:
- -55°C ~ 150°C
B550C-13-F FAQ
1.How can I place an order for B550C-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for B550C-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 B550C-13-F reliable?
The price and inventory of B550C-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 B550C-13-F is usually 5 days.
3.What payment methods are accepted for B550C-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B550C-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B550C-13-F?
B550C-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B550C-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 B550C-13-F?
For technical support, including B550C-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B550C-13-F requirements.
6.How does Aetrix verify that B550C-13-F is sourced from the original manufacturer or authorized distributors?
All B550C-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 B550C-13-F meets industry standards.
7.What is the process for return or replacement of B550C-13-F?
All B550C-13-F units undergo pre-shipment inspection (PSI). If there is an issue with B550C-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 B550C-13-F part is unused and in its original packaging.
Return procedure for B550C-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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