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Taiwan Semiconductor Corporation SK110BH
- Part No.:
- SK110BH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SK110BH.pdf
- Description:
- DIODE SCHOTTKY 100V 1A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,955
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Product details
Overview
SK110BH from Taiwan Semiconductor is a 100 V, 1 A surface-mount Schottky barrier rectifier in DO-214AA (SMB) package, featuring 0.85 V forward voltage at 1 A and 0.1 mA reverse leakage at rated VR and 25°C, qualified to AEC-Q101 for automotive-grade reliability, and used in reverse battery protection and DC/DC converters.
For engineers reviewing the SK110BH datasheet, SK110BH pinout, SK110BH application, or SK110BH equivalent, key selection criteria include peak reverse voltage (100 V), forward current rating (1 A), thermal resistance (25 °C/W), surge capability (30 A), and AEC-Q101 qualification status.
Technical Context
The SK110BH employs a single-die Schottky junction optimized for low VF and fast switching in low-voltage, high-frequency power conversion. Its guard ring structure enhances overvoltage robustness, and its DO-214AA package supports automated placement with J-STD-002 solderability.
Rated for TJ = –55°C to +150°C operation, it delivers 30 A non-repetitive surge current (8.3 ms half-sine) and maintains <0.1 mA IR at 100 V and 25°C, making it suitable for thermally constrained automotive and industrial environments where low conduction loss and high reliability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage; defines safe operating range in reverse-biased applications like reverse polarity protection. |
| IF | 1 A - Continuous average forward current; sets steady-state power handling limit in DC/DC output stages and freewheeling paths. |
| VF @ 1 A, 25°C | 0.85 V - Low forward drop reduces conduction losses and improves efficiency in 12–48 V systems. |
| IR @ 100 V, 25°C | 0.1 mA - Ultra-low reverse leakage minimizes standby power loss in always-on automotive modules. |
| IFSM | 30 A - Peak surge rating enables robustness against load dump transients and inrush events without failure. |
| RθJL | 25 °C/W - Junction-to-lead thermal resistance supports direct PCB heat sinking via cathode pad for thermal management. |
| TJ max | +150 °C - Extended junction temperature rating allows operation in under-hood automotive environments. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, single-anode/single-cathode configuration. Cathode indicated by band on molded body. Matte tin-plated leads, moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., ground or switch node); must handle full IF and IFSM. |
| Cathode | Forward current exit / reverse-blocking terminal | Connected to higher-potential node (e.g., input rail); carries heat to PCB copper; marked with band. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use per stress test requirements including HTGB, HTRB, and temperature cycling-enables deployment in safety-critical vehicle subsystems. |
| Guard ring structure | Improves edge termination robustness, raising dV/dt rating to 10,000 V/µs and reducing risk of premature avalanche breakdown under transient overvoltage. |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow, supporting standard SMT assembly without process modification or yield loss. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS directives-ensures environmental compliance for global automotive OEM supply chains. |
Applications
| Reverse Battery Protection | DC/DC Converter Output Rectification |
|---|---|
Use Scenario: Prevents damage to vehicle electronics during incorrect battery connection or jump-start events. IC Role / Device Role / Timing Role: Unidirectional blocking diode placed in series with main power input rail. Use Value: 100 V VRRM withstands 12 V system load dump spikes; 0.85 V VF limits voltage drop and heat generation during normal operation. | Use Scenario: Rectifies switched output in buck or flyback converters powering infotainment or ADAS modules. IC Role / Device Role / Timing Role: Freewheeling path for inductive energy recovery during high-side switch off-time. Use Value: Fast recovery and low VF improve converter efficiency (>92% typical at 1 A); SMB footprint fits dense PCB layouts. |
| Automotive LED Lighting | Industrial Power Supply Freewheeling |
Use Scenario: Provides reverse polarity immunity and EMI filtering in headlamp and tail lamp driver circuits. IC Role / Device Role / Timing Role: Input protection diode upstream of constant-current LED drivers. Use Value: AEC-Q101 qualification ensures long-term reliability in vibration-prone lighting housings; 150°C TJ max accommodates sealed enclosure temperatures. | Use Scenario: Clamps inductive kickback in relay or solenoid control circuits within factory automation PLCs. IC Role / Device Role / Timing Role: Snubber diode across inductive loads to suppress voltage spikes and protect driving transistors. Use Value: 30 A IFSM handles repeated mechanical actuation surges; 25 °C/W RθJL enables direct thermal coupling to heatsink pads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS110H (ON Semiconductor) | Same VRRM (100 V), IF (1 A), and DO-214AA package; VF = 0.87 V @ 1 A (slightly higher than SK110BH's 0.85 V). | Also AEC-Q101 qualified; identical thermal and surge ratings; minor VF difference has negligible impact in most 12 V systems. | Drop-in alternative where ON Semi sourcing is preferred; verify marking and reel packaging compatibility. |
| SB1100 (Diotec) | VRRM = 100 V, IF = 1 A, DO-214AA; VF = 0.82 V @ 1 A (lower), but IR = 0.5 mA @ 100 V/25°C (5× higher than SK110BH's 0.1 mA). | Better conduction loss, but higher leakage may increase standby power in always-on modules; not AEC-Q101 qualified. | Suitable for cost-sensitive industrial designs where leakage is less critical and automotive qualification is not required. |
Compared with SS110H and SB1100, the SK110BH offers the lowest reverse leakage (0.1 mA) among the three while maintaining AEC-Q101 qualification and competitive VF-making it optimal for automotive applications demanding ultra-low standby current and certified reliability.
Availability
SK110BH is available at Aetrix Electronics and suitable for reverse battery protection, DC/DC converter output rectification, and automotive LED lighting requiring stable component supply across production lifecycles.
Supply support for SK110BH 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and consumer markets since 1979.
The SK110BH belongs to TSC's AEC-Q101-qualified Schottky rectifier family designed specifically for high-reliability 12 V and 24 V automotive power systems, emphasizing low VF, low IR, and robust surge tolerance.
FAQ
What is the maximum junction temperature rating for the SK110BH?
The SK110BH is rated for a maximum junction temperature of +150°C, enabling reliable operation in under-hood automotive environments and enclosed industrial power supplies where ambient temperatures exceed 105°C. This rating is validated per AEC-Q101 stress testing and supported by its 25 °C/W junction-to-lead thermal resistance. The SK110BH must be mounted on adequate copper area to maintain TJ ≤ 150°C under full 1 A load.
Is the SK110BH pin-compatible with other DO-214AA Schottky diodes?
Yes-the SK110BH uses the standard DO-214AA (SMB) package with anode and cathode terminals in the industry-standard pinout. It is mechanically and electrically compatible with all DO-214AA rectifiers, including SS110H and SB1100, allowing direct PCB footprint reuse. Polarity is marked by a cathode band, consistent with JEDEC DO-214AA specifications.
Does the SK110BH meet automotive qualification standards?
Yes, the SK110BH is explicitly qualified to AEC-Q101, covering stress tests such as high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling. This qualification is documented in Taiwan Semiconductor's official datasheet revision B2212 and confirms suitability for automotive power management, lighting, and infotainment systems.
What is the forward voltage of the SK110BH at 1 A and 125°C?
The SK110BH forward voltage increases with temperature: while VF = 0.85 V at 1 A and 25°C, the datasheet does not specify a typ/max value at 125°C. However, typical Schottky behavior shows VF decreasing ~2 mV/°C-so VF at 125°C is estimated near 0.65 V. For design-critical applications, engineers should consult the SK110BH's Fig.10 forward characteristics curve in the official datasheet.
How is moisture sensitivity handled for the SK110BH during assembly?
The SK110BH is rated at Moisture Sensitivity Level (MSL) 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/60% RH without baking prior to reflow soldering. This eliminates pre-assembly bake steps, reduces manufacturing cycle time, and prevents potential damage from moisture-induced popcorning during reflow-critical for high-volume automotive electronics production.
SK110BH 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):
- 100 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 850 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 100 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
SK110BH FAQ
1.How can I place an order for SK110BH through Aetrix?
Please submit a Request for Quotation (RFQ) for SK110BH 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 SK110BH reliable?
The price and inventory of SK110BH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK110BH is usually 5 days.
3.What payment methods are accepted for SK110BH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK110BH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK110BH?
SK110BH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK110BH 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 SK110BH?
For technical support, including SK110BH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK110BH requirements.
6.How does Aetrix verify that SK110BH is sourced from the original manufacturer or authorized distributors?
All SK110BH 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 SK110BH meets industry standards.
7.What is the process for return or replacement of SK110BH?
All SK110BH units undergo pre-shipment inspection (PSI). If there is an issue with SK110BH, 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 SK110BH part is unused and in its original packaging.
Return procedure for SK110BH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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