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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Diodes Incorporated SK15-13-F

Name: SK15-13-F
Brand: Diodes Incorporated
SKU: SK15-13-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SK15-13-F

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: SK15-13-F.pdf

Description:: DIODE SCHOTTKY 50V 1A SMB

Quantity:: RFQ Add To RFQ list

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Inventory:6,599

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Product details

Overview

SK15-13-F from Diodes Incorporated is a surface-mount Schottky barrier rectifier with 50 V maximum recurrent peak reverse voltage, 1.0 A average forward rectified current at 75°C, and 0.70 V maximum forward voltage at 1.0 A, used in low-loss DC power supply output stages and OR-ing diode applications.

For engineers reviewing the SK15-13-F datasheet, SK15-13-F pinout, SK15-13-F application, or SK15-13-F equivalent, key selection criteria include forward voltage drop at rated current, thermal resistance (25 °C/W), surge current capability (25 A), reverse leakage at 100°C (10 mA), and SMB package compatibility with automated SMT assembly.

Technical Context

This Schottky rectifier employs a high-temperature metallurgically bonded junction to achieve low forward voltage and fast switching with no minority-carrier storage delay. It operates across –65°C to +125°C junction temperature range and supports single-phase half-wave 60 Hz resistive/inductive loads.

Designed for surface-mounted power conversion, it features UL 94V-0 molded plastic case, moisture sensitivity level 1, and lead-free matte tin plating compliant with RoHS Directive Annex Notes 5 and 7.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - Maximum allowable repetitive reverse voltage before breakdown; sets safe operating limit in DC blocking or flyback clamp circuits.
I_(AV)	1.0 A @ T_A = 75°C - Continuous DC output current capability with 6.0 mm² copper pads; derates to zero at 140°C ambient.
V_F	0.70 V @ 1.0 A - Forward conduction loss directly impacts efficiency in low-voltage power supplies (e.g., 3.3 V or 5 V outputs).
I_FSM	25 A - Peak non-repetitive surge current tolerance for 8.3 ms half-sine; critical for handling inrush or transient overloads.
R_θJL	25 °C/W - Thermal resistance from junction to lead; determines temperature rise under steady-state power dissipation.
C_T	110 pF @ 1 MHz, 4 V reverse - Junction capacitance affects high-frequency switching noise and EMI in SMPS output stages.

Pinout & Package

Package: SMB (DO-214AA), molded plastic case, UL 94V-0 rated, cathode indicated by band or notch. Dimensions: A = 3.30–3.94 mm, B = 4.00–4.65 mm, C = 1.95–2.21 mm, E = 5.00–6.00 mm, J = 2.00–2.62 mm.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Current entry point during forward conduction	Connected to lower-potential side (e.g., ground or return path) in rectification; must handle full load current and surge.
Cathode	Current exit point during forward conduction	Marked with band; connects to positive output rail; carries forward current and blocks reverse voltage up to 50 V.

Key Features

Feature	Design Value
Low forward voltage	0.70 V max at 1.0 A reduces conduction loss and improves efficiency in 3.3 V/5 V power rails.
High surge current rating	25 A non-repetitive peak enables robustness against line transients and hot-swap events.
Thermal performance	25 °C/W junction-to-lead resistance allows reliable operation with minimal heatsinking on standard PCB copper.
RoHS-compliant packaging	Lead-free matte tin finish meets EU Directive Annex requirements and supports lead-free reflow profiles (265°C, 10 s).

Applications

AC-DC Adapter Output Stage

USB Power Delivery Rectification

Use Scenario: Secondary-side rectification in compact wall adapters delivering 5 V/3 A.

IC Role / Device Role / Timing Role: Schottky rectifier replacing conventional PN diodes to minimize forward loss and heat generation.

Use Value: 0.70 V V_F cuts conduction loss by ~40% vs. 1.1 V silicon diode, enabling smaller heatsinks and higher power density.

Use Scenario: OR-ing diode in dual-input USB PD power path selecting between adapter and battery sources.

IC Role / Device Role / Timing Role: Unidirectional current gate preventing backfeed while minimizing voltage drop across source selection path.

Use Value: Low 0.70 V forward drop preserves >97% of 5 V bus voltage, ensuring stable downstream regulation under full 1.0 A load.

Industrial Sensor Power Supply

LED Driver Output Rectification

Use Scenario: 24 V DC input converted to isolated 5 V/3.3 V for analog sensor front-ends in factory automation.

IC Role / Device Role / Timing Role: Secondary-side rectifier in flyback or forward converter supplying low-noise analog circuitry.

Use Value: 110 pF junction capacitance limits high-frequency ringing, reducing conducted EMI into sensitive signal paths.

Use Scenario: Constant-current LED driver output stage driving strings of white LEDs from 12 V–24 V input.

IC Role / Device Role / Timing Role: Output rectifier handling continuous 1.0 A forward current with minimal thermal rise.

Use Value: 25 °C/W thermal resistance enables stable operation at 75°C ambient without forced air, supporting sealed fixture designs.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
B150B-13-F	Same SMB package; 50 V V_RRM, 1.0 A I_(AV), 0.55 V V_F @ 1.0 A (lower than SK15-13-F)	Lower forward voltage improves efficiency in thermally constrained layouts but requires verification of reverse leakage at 100°C (15 µA vs. 10 mA)	Select when lowest conduction loss is prioritized and elevated temperature reverse leakage is not critical.
SS15-E3/5AT	SMB package; 50 V V_RRM, 1.0 A I_(AV), 0.55 V typical V_F; 100°C IR = 500 µA (higher than SK15-13-F's 10 mA)	Higher reverse leakage may impact standby power in always-on systems; tighter V_F distribution benefits production yield.	Prefer for consumer-grade designs where cost and typical performance outweigh worst-case leakage concerns.

Compared with SK15-13-F, B150B-13-F offers lower forward voltage but significantly lower reverse leakage at high temperature, while SS15-E3/5AT trades higher leakage for tighter V_F consistency-selection depends on whether thermal leakage or conduction loss dominates the design constraint.

Availability

SK15-13-F is available at Aetrix Electronics and suitable for AC-DC adapters, USB power delivery modules, and industrial sensor power supplies requiring stable component supply and RoHS-compliant manufacturing.

Supply support for SK15-13-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 US.

The SKx series Schottky rectifiers target cost-sensitive, high-volume power conversion applications where low forward voltage, robust surge capability, and SMB package compatibility are essential.

FAQ

Is SK15-13-F suitable for use in automotive applications?

No. SK15-13-F is not AEC-Q101 qualified and lacks automotive-grade screening, temperature cycling validation, or PPAP documentation. Its –65°C to +125°C operating range meets industrial but not automotive environmental requirements. For automotive use, consider Diodes' APx series or Vishay's VS-15MQxx-M3.

What is the maximum PCB pad size recommended for thermal performance?

The datasheet specifies 6.0 mm² copper pads for the I_(AV) rating derating curve. Using pads ≥6.0 mm² per terminal (e.g., 2.0 mm × 3.0 mm) ensures the 1.0 A rating at 75°C ambient. Smaller pads increase thermal resistance and require current derating per Figure 1.

Does SK15-13-F have a specified reverse recovery time?

No. As a Schottky barrier rectifier, SK15-13-F has no minority carrier storage and therefore no defined reverse recovery time (t_rr). Its switching is limited only by junction capacitance (110 pF) and circuit inductance, making it inherently faster than PN rectifiers.

Can SK15-13-F be used in parallel for higher current capacity?

Not recommended without external balancing. The device has no built-in current-sharing features, and forward voltage variation between units can cause uneven current distribution. If paralleling is required, use matched V_F lots and individual series resistors (0.01–0.05 Ω) per anode to ensure ±10% current sharing.

SK15-13-F Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: DO-214AA, SMB

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 50 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 700 mV @ 1 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 500 µA @ 50 V

Capacitance @ Vr, F:: 110pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMB

Operating Temperature - Junction:: -65°C ~ 125°C

SK15-13-F FAQ

1.How can I place an order for SK15-13-F through Aetrix?

Please submit a Request for Quotation (RFQ) for SK15-13-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 SK15-13-F reliable?

The price and inventory of SK15-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK15-13-F is usually 5 days.

3.What payment methods are accepted for SK15-13-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK15-13-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SK15-13-F?

SK15-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SK15-13-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 SK15-13-F?

For technical support, including SK15-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK15-13-F requirements.

6.How does Aetrix verify that SK15-13-F is sourced from the original manufacturer or authorized distributors?

All SK15-13-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 SK15-13-F meets industry standards.

7.What is the process for return or replacement of SK15-13-F?

All SK15-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SK15-13-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 SK15-13-F part is unused and in its original packaging.

Return procedure for SK15-13-F:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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