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

Taiwan Semiconductor Corporation SK115BHR5G

Name: SK115BHR5G
Brand: Taiwan Semiconductor Corporation
SKU: SK115BHR5G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SK115BHR5G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: SK115BHR5G.pdf

Description:: DIODE SCHOTTKY 150V 1A DO214AA

Quantity:: RFQ Add To RFQ list

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Inventory:9,475

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Product details

Overview

SK115BHR5G from Taiwan Semiconductor is a 1 A, 150 V Schottky barrier surface-mount rectifier in DO-214AA (SMB) package, featuring 0.95 V forward voltage at 1 A and 2 mA reverse leakage at 125 °C, designed for high-efficiency DC/DC converters and industrial power adapters.

For engineers reviewing the SK115BHR5G datasheet, SK115BHR5G pinout, SK115BHR5G application, or SK115BHR5G equivalent, key selection criteria include peak reverse voltage rating, thermal resistance (25 °C/W), surge current capability (30 A), junction temperature limit (+150 °C), and RoHS/halogen-free compliance for automotive-grade power supplies.

Technical Context

This Schottky rectifier uses a single-die construction with guard ring structure to enhance overvoltage robustness and suppress avalanche-induced failure. Its low forward voltage minimizes conduction loss in high-frequency switching topologies operating up to 1 MHz.

The device supports continuous operation at junction temperatures up to +150 °C and withstands 8.3 ms non-repetitive surge currents of 30 A, making it suitable for transient-heavy input stages in offline SMPS and LED drivers where thermal cycling reliability is critical.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	150 V - Maximum repetitive reverse blocking voltage; defines usable input voltage range in 100–120 VAC or 200–240 VAC-derived DC rails.
I_F	1 A - Continuous average forward current; sets maximum steady-state output power capability in buck or flyback secondary-side rectification.
V_F	0.95 V @ 1 A, 25 °C - Low conduction loss enables >92% efficiency in 12 V output converters at full load.
I_R	100 µA @ 150 V, 25 °C; 2 mA @ 150 V, 125 °C - Leakage stability ensures minimal standby power loss across extended temperature range.
I_FSM	30 A - Peak surge current rating supports cold-start inrush and line-transient events without bond-wire fusing.
R_θJL	25 °C/W - Junction-to-lead thermal resistance enables direct PCB copper pour heatsinking without external heatsink in space-constrained designs.
T_J max	+150 °C - Extended junction temperature rating allows operation in sealed enclosures or high-ambient industrial environments.

Pinout & Package

Package: DO-214AA (SMB), surface-mount plastic case with matte tin-plated leads, polarity indicated by cathode band, weight ≈ 0.093 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential node (e.g., transformer secondary center-tap or switch node); requires adequate copper area for thermal dissipation.
Cathode	Forward current exit point	Connected to output rail or filter capacitor; cathode band marking ensures correct orientation during automated placement.

Key Features

Feature	Design Value
Guard ring structure	Improves dv/dt immunity and prevents premature edge breakdown under fast-rising transients in high-frequency converters.
Moisture sensitivity level 1	Eliminates need for baking prior to reflow soldering, reducing manufacturing cost and process complexity.
JESD201 Class 2 whisker resistance	Ensures long-term solder joint integrity in vibration-prone applications such as transportation electronics.
UL 94V-0 molding compound	Meets flammability safety requirements for enclosed power supplies in consumer and industrial equipment.
Halogen-free per IEC 61249-2-21	Supports environmental compliance for export markets including EU RoHS and China RoHS II.

Applications

Industrial SMPS	LED Driver Secondary Rectification
Use Scenario: 48 V input, 24 V/1 A isolated flyback converter powering PLC I/O modules in factory automation cabinets. IC Role / Device Role / Timing Role: Primary-side synchronous rectifier replacement; conducts during transformer demagnetization phase to recover energy and reduce losses. Use Value: 0.95 V V_F lowers conduction loss by ~18% versus standard PN diodes, improving full-load efficiency from 87% to 90.5%.	Use Scenario: Constant-current LED driver for high-bay warehouse lighting, operating from 300 VDC bus derived from PFC stage. IC Role / Device Role / Timing Role: Output rectifier in LLC resonant half-bridge secondary; handles 1 A average current with 30 A surge tolerance during lamp ignition. Use Value: 150 V V_RRM provides 2× margin over 300 VDC bus peak, eliminating risk of reverse breakdown during line surges.
AC-DC Adapter Front-End	Telecom DC/DC Module Input Protection
Use Scenario: Universal-input (90–264 VAC) 12 V/1 A wall adapter for network routers, with compact SMB footprint. IC Role / Device Role / Timing Role: Bridge rectifier output diode; conducts during positive half-cycles after bulk capacitor charging. Use Value: DO-214AA package fits tight board spacing; 0.093 g mass reduces mechanical stress on solder joints during thermal cycling.	Use Scenario: 48 V telecom system with hot-swap controller and redundant power inputs feeding a 12 V intermediate bus module. IC Role / Device Role / Timing Role: OR-ing diode in input stage; blocks reverse current from backup supply while conducting forward current from primary source. Use Value: 25 °C/W R_θJL enables direct thermal coupling to copper plane, maintaining <110 °C junction temp at 1 A continuous under 60 °C ambient.

Industrial SMPS

LED Driver Secondary Rectification

Use Scenario: 48 V input, 24 V/1 A isolated flyback converter powering PLC I/O modules in factory automation cabinets.

IC Role / Device Role / Timing Role: Primary-side synchronous rectifier replacement; conducts during transformer demagnetization phase to recover energy and reduce losses.

Use Value: 0.95 V V_F lowers conduction loss by ~18% versus standard PN diodes, improving full-load efficiency from 87% to 90.5%.

Use Scenario: Constant-current LED driver for high-bay warehouse lighting, operating from 300 VDC bus derived from PFC stage.

IC Role / Device Role / Timing Role: Output rectifier in LLC resonant half-bridge secondary; handles 1 A average current with 30 A surge tolerance during lamp ignition.

Use Value: 150 V V_RRM provides 2× margin over 300 VDC bus peak, eliminating risk of reverse breakdown during line surges.

AC-DC Adapter Front-End

Telecom DC/DC Module Input Protection

Use Scenario: Universal-input (90–264 VAC) 12 V/1 A wall adapter for network routers, with compact SMB footprint.

IC Role / Device Role / Timing Role: Bridge rectifier output diode; conducts during positive half-cycles after bulk capacitor charging.

Use Value: DO-214AA package fits tight board spacing; 0.093 g mass reduces mechanical stress on solder joints during thermal cycling.

Use Scenario: 48 V telecom system with hot-swap controller and redundant power inputs feeding a 12 V intermediate bus module.

IC Role / Device Role / Timing Role: OR-ing diode in input stage; blocks reverse current from backup supply while conducting forward current from primary source.

Use Value: 25 °C/W R_θJL enables direct thermal coupling to copper plane, maintaining <110 °C junction temp at 1 A continuous under 60 °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
SS115H from Diodes Inc.	Same 150 V V_RRM, 1 A I_F, but VF = 0.87 V @ 1 A; R_θJL = 20 °C/W; DO-214AA package.	Slightly lower conduction loss and better thermal resistance, but higher IR (500 µA @ 25 °C vs. 100 µA).	Preferred where efficiency dominates over leakage-sensitive standby modes.
SB1150 from ON Semiconductor	150 V V_RRM, 1 A I_F, VF = 0.92 V @ 1 A; I_R = 100 µA @ 25 °C; R_θJL = 22 °C/W; same DO-214AA package.	Near-identical electrical specs, but qualified to AEC-Q101 for automotive use.	Required for automotive infotainment or body control modules needing automotive qualification.

Compared with SK115BHR5G, SS115H offers marginally better efficiency and thermal performance but higher room-temperature leakage, while SB1150 adds AEC-Q101 qualification at nearly identical electrical behavior-making it suitable for automotive deployments where SK115BHR5G serves industrial and commercial power systems.

Availability

SK115BHR5G is available at Aetrix Electronics and suitable for industrial SMPS, LED driver secondary rectification, AC-DC adapter front-end, and telecom DC/DC module input protection requiring stable component supply and consistent DO-214AA packaging.

Supply support for SK115BHR5G 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

Taiwan Semiconductor Company (TSC) is a vertically integrated Taiwanese manufacturer specializing in discrete semiconductors, with over 30 years of experience in power rectifiers, TVS diodes, and MOSFETs.

The SK1xB series was developed specifically for high-reliability, cost-sensitive AC/DC and DC/DC power conversion in industrial, lighting, and consumer electronics, emphasizing thermal robustness and automated assembly compatibility.

FAQ

What is the maximum junction temperature rating for SK115BHR5G?

The SK115BHR5G has a maximum junction temperature (T_J) rating of +150 °C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet revision M2212. This allows continuous operation in sealed enclosures or high-ambient environments where thermal management is constrained. The device maintains specified electrical performance up to this limit, and derating curves confirm usable current capacity down to 0.6 A at 150 °C ambient with appropriate PCB copper area.

Does SK115BHR5G meet RoHS and halogen-free requirements?

Yes, SK115BHR5G is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the "Features" section of the Taiwan Semiconductor datasheet. The molding compound is UL 94V-0 rated, and terminals are matte tin plated to meet J-STD-002 solderability standards. These certifications are confirmed in the "MECHANICAL DATA" and "FEATURES" sections of document version M2212.

What is the forward voltage of SK115BHR5G at 1 A and 25 °C?

The forward voltage (V_F) of SK115BHR5G is 0.95 V at 1 A and 25 °C, as specified in the "ELECTRICAL SPECIFICATIONS" table under conditions IF = 1 A, T_J = 25 °C. This value is measured using a 0.3 ms pulse test and reflects typical conduction loss in high-frequency switching applications. At 100 °C junction temperature, V_F decreases to approximately 0.82 V due to negative temperature coefficient of Schottky diodes.

Is SK115BHR5G suitable for surge-prone power supply inputs?

Yes, SK115BHR5G supports 30 A non-repetitive forward surge current (I_FSM) for 8.3 ms half-sine wave, enabling reliable operation during cold-start inrush and AC line transients. Its guard ring design enhances overvoltage protection, and the 150 V V_RRM provides sufficient margin against 300 VDC bus peaks. These characteristics make SK115BHR5G well-suited for front-end rectification in unregulated offline supplies subject to frequent surges.

What package type does SK115BHR5G use, and what are its key mechanical features?

SK115BHR5G uses the DO-214AA (SMB) surface-mount package, with dimensions matching JEDEC DO-214 variation AA. Key mechanical features include matte tin-plated leads compliant with J-STD-002, moisture sensitivity level 1 (no bake required), UL 94V-0 flammability rating, and JESD201 Class 2 whisker resistance. Polarity is marked by a cathode band, and typical weight is 0.093 g.

SK115BHR5G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AA, SMB

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 150 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 950 mV @ 3 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 100 µA @ 150 V

Capacitance @ Vr, F:: -

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AA (SMB)

Operating Temperature - Junction:: -55°C ~ 150°C

SK115BHR5G FAQ

1.How can I place an order for SK115BHR5G through Aetrix?

Please submit a Request for Quotation (RFQ) for SK115BHR5G 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 SK115BHR5G reliable?

The price and inventory of SK115BHR5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK115BHR5G is usually 5 days.

3.What payment methods are accepted for SK115BHR5G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK115BHR5G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SK115BHR5G?

SK115BHR5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SK115BHR5G 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 SK115BHR5G?

For technical support, including SK115BHR5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK115BHR5G requirements.

6.How does Aetrix verify that SK115BHR5G is sourced from the original manufacturer or authorized distributors?

All SK115BHR5G 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 SK115BHR5G meets industry standards.

7.What is the process for return or replacement of SK115BHR5G?

All SK115BHR5G units undergo pre-shipment inspection (PSI). If there is an issue with SK115BHR5G, 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 SK115BHR5G part is unused and in its original packaging.

Return procedure for SK115BHR5G:

1.Submit a request within 90 days.

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

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