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Taiwan Semiconductor Corporation SK36BH
- Part No.:
- SK36BH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SK36BH.pdf
- Description:
- DIODE SCHOTTKY 60V 3A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,900
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Product details
Overview
SK36BH from Taiwan Semiconductor is a 3A, 60V Schottky barrier rectifier in DO-214AA (SMB) package, designed for low-loss freewheeling and reverse battery protection in automotive lighting and DC/DC converters. It features AEC-Q101 qualification, 0.85V max forward voltage at 3A/25°C, 100µA max reverse leakage at 60V/25°C, and 70A non-repetitive surge capability.
For engineers reviewing the SK36BH datasheet, SK36BH pinout, SK36BH application, or SK36BH equivalent, key selection criteria include its 60V VRRM, thermal resistance (RθJL = 23°C/W), junction temperature range (–55°C to +150°C), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
The SK36BH implements a single-die Schottky structure with guard ring overvoltage protection and matte tin-plated leads compliant with J-STD-002 solderability. Its 60V peak reverse voltage and 10,000 V/µs dV/dt rating support fast-switching topologies in constrained space.
Thermally, it delivers RθJA = 63°C/W (free air) and RθJL = 23°C/W (lead-mounted), enabling sustained 3A operation up to +125°C ambient when properly heatsinked via PCB copper. Moisture sensitivity level is J-STD-020 Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 60 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in reverse-biased applications like reverse battery protection. |
| IF | 3 A - Continuous forward current rating; supports steady-state power delivery in DC/DC output stages without derating at ≤75°C ambient. |
| VF (max) | 0.85 V @ 3A, 25°C - Low conduction loss enables >92% efficiency in 5–12V buck converters at full load. |
| IR (max) | 100 µA @ 60V, 25°C - Minimal leakage preserves battery standby life in always-on automotive modules. |
| IFSM | 70 A - Peak surge current handling for 8.3ms half-sine; withstands load dump transients in 12V vehicle systems. |
| TJ max | +150°C - Extended junction temperature rating allows operation in under-hood environments without thermal shutdown. |
| RθJL | 23 °C/W - Low junction-to-lead thermal resistance enables direct PCB copper thermal path design for compact layouts. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount plastic case with cathode band polarity indicator, 0.100g mass, UL 94V-0 molding compound, and JESD 201 Class 2 whisker-resistant matte tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); requires low-inductance trace routing. |
| Cathode | Forward current exit / reverse-blocking terminal | Marked by band; ties to higher-potential rail (e.g., output capacitor positive); serves as reference for voltage clamping. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TC, and HAST-enables use in headlight control and body ECUs without additional qualification. |
| Guard ring structure | Enhances edge termination robustness against transient overvoltage events, improving reliability in noisy 12V/24V vehicle electrical systems. |
| Moisture sensitivity Level 1 | No bake preconditioning required before reflow; compatible with standard SMT assembly lines without process modification. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU-supports environmental compliance for global OEM supply chains. |
Applications
| Automotive LED Lighting | DC/DC Converter Output Rectification |
|---|---|
Use Scenario: High-brightness LED headlamps powered from 12V battery with PWM dimming and EMI filtering. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck controller output stage, providing low-loss current path during high-side FET off-time. Use Value: 0.85V VF minimizes heat generation and improves lumen-per-watt efficiency versus silicon diodes; AEC-Q101 ensures lifetime reliability under thermal cycling. | Use Scenario: 5V/3A point-of-load regulator supplying infotainment SoC core voltage. IC Role / Device Role / Timing Role: Secondary-side rectifier replacing synchronous MOSFET in cost-sensitive isolated flyback design. Use Value: Eliminates gate-drive complexity while maintaining >88% efficiency at full load; SMB footprint fits tight board spacing near transformer. |
| Reverse Battery Protection | Industrial 24V Power Input Stage |
Use Scenario: Aftermarket dashcam with dual-battery input (main + backup) and polarity reversal risk during jump-start. IC Role / Device Role / Timing Role: Series-connected Schottky diode blocking reverse current flow into system during incorrect battery connection. Use Value: 60V VRRM exceeds 24V system surge limits; 100µA leakage prevents drain on backup battery during multi-month parking mode. | Use Scenario: Programmable logic controller (PLC) power module accepting 24V DC industrial supply with line transients. IC Role / Device Role / Timing Role: Input protection diode clamping negative transients and preventing backfeed from auxiliary rails. Use Value: 70A IFSM handles 24V line surges per IEC 61000-4-5; DO-214AA package allows automated placement alongside other power components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-3EY60-M3/5BT | Same 60V VRRM, 3A IF, but TO-277 package (lower RθJA = 50°C/W); VF = 0.72V typ @ 3A. | TO-277 offers better thermal performance in high-ambient environments but requires different footprint and stencil design. | Select when board-level thermal management is critical and layout revision is acceptable. |
| ON Semiconductor SB360-E3/54 | 60V VRRM, 3A IF, SMB package, but AEC-Q101 not claimed; VF = 0.72V max @ 3A; IR = 200µA max @ 60V/25°C. | Lacks automotive qualification; higher leakage may impact long-term battery retention in always-on systems. | Select for cost-sensitive industrial or consumer applications where AEC-Q101 is not mandated. |
Compared with VS-3EY60-M3/5BT and SB360-E3/54, the SK36BH uniquely combines AEC-Q101 qualification, SMB footprint compatibility, and 100µA low-leakage performance-making it optimal for automotive lighting and battery-critical reverse protection where qualification and leakage are non-negotiable.
Availability
SK36BH is available at Aetrix Electronics and suitable for automotive LED lighting, DC/DC converter output rectification, and reverse battery protection requiring stable component supply across production lifecycles.
Supply support for SK36BH 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 Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and consumer markets since 1979.
The SK36BH belongs to TSC's AEC-Q101-qualified Schottky rectifier family targeting high-efficiency, high-reliability power conversion in automotive subsystems and ruggedized industrial power supplies.
FAQ
What is the maximum junction temperature rating for the SK36BH?
The SK36BH has a maximum junction temperature (TJ) of +150°C, validated per AEC-Q101 stress testing. This allows continuous operation in under-hood automotive environments where ambient temperatures reach +105°C, provided thermal design maintains junction temperature below this limit. The SK36BH datasheet specifies derating curves confirming 3A capability up to +125°C ambient with proper PCB copper area.
Is the SK36BH pin-compatible with other parts in the SK3xBH series?
Yes, all SK3xBH devices-including SK36BH-share identical DO-214AA (SMB) package dimensions, anode/cathode pinout, and mechanical footprint. Voltage variants (e.g., SK33BH, SK39BH) can be substituted on the same PCB layout without modification, though electrical parameters like VF and IR differ per voltage grade.
Does the SK36BH require moisture sensitivity baking before reflow soldering?
No, the SK36BH is rated at Moisture Sensitivity Level 1 per J-STD-020, meaning it has unlimited floor life and does not require dry-pack storage or pre-reflow baking. This simplifies SMT line integration and eliminates yield loss risks associated with moisture-induced popcorning during reflow.
What is the forward voltage specification for SK36BH at elevated temperature?
The SK36BH forward voltage increases with junction temperature: typical VF rises to ~0.72V at 100°C and ~0.65V at 125°C (measured at 3A). The datasheet specifies only maximum VF = 0.85V at 25°C; no max value is given at higher temperatures, but curve data confirms monotonic decrease in VF with rising TJ.
Can SK36BH be used in place of a silicon PN rectifier in a 12V automotive circuit?
Yes, the SK36BH is a direct upgrade over 1N5822-type silicon rectifiers in 12V circuits, offering lower VF (0.85V vs. 0.9V–1.1V), faster switching, and zero reverse recovery charge. Its 60V VRRM safely covers 12V system transients, and AEC-Q101 qualification ensures automotive-grade reliability-unlike generic silicon diodes.
SK36BH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 60 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 750 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 60 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
SK36BH FAQ
1.How can I place an order for SK36BH through Aetrix?
Please submit a Request for Quotation (RFQ) for SK36BH 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 SK36BH reliable?
The price and inventory of SK36BH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK36BH is usually 5 days.
3.What payment methods are accepted for SK36BH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK36BH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK36BH?
SK36BH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK36BH 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 SK36BH?
For technical support, including SK36BH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK36BH requirements.
6.How does Aetrix verify that SK36BH is sourced from the original manufacturer or authorized distributors?
All SK36BH 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 SK36BH meets industry standards.
7.What is the process for return or replacement of SK36BH?
All SK36BH units undergo pre-shipment inspection (PSI). If there is an issue with SK36BH, 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 SK36BH part is unused and in its original packaging.
Return procedure for SK36BH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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