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Taiwan Semiconductor Corporation SKL13BH
- Part No.:
- SKL13BH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SKL13BH.pdf
- Description:
- DIODE SCHOTTKY 30V 1A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,771
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Product details
Overview
SKL13BH from Taiwan Semiconductor is a 1 A, 30 V Schottky barrier surface-mount rectifier in DO-214AA (SMB) package, featuring low forward voltage (VF ≤ 0.39 V at 1 A), high surge capability (IFSM = 50 A), and AEC-Q101 qualification for automotive use - deployed as freewheeling diodes in DC/DC converters and reverse battery protection circuits.
For engineers reviewing the SKL13BH datasheet, SKL13BH pinout, SKL13BH application, or SKL13BH equivalent, key selection criteria include its 30 V repetitive peak reverse voltage, 125 °C maximum junction temperature, moisture sensitivity level 1 rating, and SMB package compatibility with automated SMT placement.
Technical Context
The SKL13BH is a single-die Schottky rectifier optimized for low-loss operation in high-frequency switching topologies. Its guard ring structure enhances overvoltage robustness, while matte tin-plated leads ensure solderability per J-STD-002 and whisker resistance per JESD 201 Class 2.
Thermally, it delivers RθJL = 30 °C/W and RθJA = 85 °C/W, supporting continuous 1 A conduction at ambient temperatures up to 75 °C without derating. Reverse leakage remains ≤200 µA at 25 °C and ≤50 mA at 100 °C under rated VR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - supports 24 V automotive systems with margin against load dump transients |
| IF | 1 A continuous - suitable for low-power DC/DC output stages and LED driver return paths |
| IFSM | 50 A (8.3 ms half-sine) - withstands inrush and fault currents in automotive lighting modules |
| VF | ≤0.39 V @ 1 A, 25 °C - reduces conduction loss and thermal stress in compact layouts |
| TJ max | 125 °C - enables operation in under-hood environments without active cooling |
| RθJA | 85 °C/W - allows PCB-level thermal design with standard copper pour on FR-4 |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, cathode indicated by band. Weight: 0.093 g. Molding compound meets UL 94V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential node (e.g., switch node in buck converter) |
| Cathode | Current exit point during forward conduction; marked by band | Connected to higher-potential rail (e.g., output capacitor positive terminal) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Guard ring structure | Improves edge breakdown immunity and stabilizes VRRM under voltage transients |
| Moisture sensitivity level 1 | Enables direct placement without baking; compatible with standard reflow profiles |
| Halogen-free construction | Meets IEC 61249-2-21; supports RoHS-compliant and eco-conscious manufacturing |
Applications
| Automotive Reverse Battery Protection | DC/DC Converter Freewheeling Diode |
|---|---|
Use Scenario: Prevents damage when battery terminals are accidentally reversed in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional current blocking device placed in series with power input. Use Value: Low VF minimizes voltage drop and heat generation during normal operation; 50 A surge rating handles jump-start surges. | Use Scenario: Provides current path during low-side MOSFET off-time in synchronous buck converters. IC Role / Device Role / Timing Role: Passive freewheeling element enabling continuous inductor current flow. Use Value: 0.39 V forward drop reduces conduction loss vs. silicon diodes, improving efficiency at 1 A output loads. |
| Low-Voltage Inverter Output Stage | Car Interior Lighting Driver |
Use Scenario: Rectifies high-frequency AC output in compact inverters powering 12 V LED arrays. IC Role / Device Role / Timing Role: High-speed output rectifier handling >100 kHz switching frequencies. Use Value: Low junction capacitance and fast recovery enable minimal switching loss and EMI reduction. | Use Scenario: Isolates LED strings from reverse polarity in multi-zone cabin lighting control units. IC Role / Device Role / Timing Role: Polarity protection diode in constant-current LED driver return path. Use Value: AEC-Q101 qualification ensures long-term reliability in thermally cycled interior environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB130-E3/54 (Vishay) | Same 30 V VRRM, 1 A IF, but SMB package with VF = 0.45 V (max) at 1 A | Slightly higher conduction loss; not AEC-Q101 qualified | Preferred where automotive qualification is not required and cost is prioritized |
| SS13 (ON Semiconductor) | Identical SMB package, 30 V/1 A rating, VF = 0.45 V (typ), no AEC-Q101 certification | Lacks automotive stress test validation; moisture sensitivity level 1 confirmed | Valid for industrial DC/DC designs where qualification overhead is unnecessary |
Compared with SB130-E3/54 and SS13, the SKL13BH offers lower forward voltage and certified AEC-Q101 reliability - making it the preferred choice for automotive reverse battery protection and in-vehicle DC/DC converters where thermal efficiency and qualification compliance are mandatory.
Availability
SKL13BH is available at Aetrix Electronics and suitable for automotive reverse battery protection, DC/DC converter freewheeling, and car lighting applications requiring stable component supply across production lifecycles.
Supply support for SKL13BH 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 SKL13BH belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability 12 V/24 V automotive subsystems demanding low-loss, high-surge, and thermally robust power diodes.
FAQ
What is the maximum junction temperature rating for the SKL13BH?
The SKL13BH has a maximum junction temperature (TJ) of +125 °C, validated across its full operating range from –55 °C to +125 °C. This rating enables reliable deployment in under-hood automotive environments where ambient temperatures exceed 85 °C. The device maintains specified electrical performance up to this limit, supported by its RθJA = 85 °C/W thermal resistance. Designers must ensure PCB copper area and airflow keep TJ within bounds during 1 A continuous operation.
Is the SKL13BH suitable for reverse battery protection in 24 V systems?
Yes, the SKL13BH is suitable for reverse battery protection in 24 V systems due to its 30 V VRRM, which provides adequate margin against typical 24 V nominal bus transients. Its 50 A IFSM rating handles jump-start surges, and AEC-Q101 qualification confirms robustness under automotive stress conditions. However, system-level TVS clamping should still be considered for extreme load-dump events exceeding 30 V.
Does the SKL13BH have a halogen-free construction?
Yes, the SKL13BH is halogen-free in accordance with IEC 61249-2-21, and is also RoHS compliant. This makes it suitable for environmentally regulated manufacturing processes, including those targeting WEEE and ELV directives. The molding compound and internal materials meet strict halogen content thresholds, verified through material declarations and third-party testing per TSC's compliance documentation.
What is the marking code printed on the SKL13BH device body?
The SKL13BH is marked with "SKL13B" on its surface, per the manufacturer's ordering and marking specification. This 6-character code identifies the base part number and distinguishes it from other variants in the SKL13x family. The full orderable part number SKL13BH includes the "H" suffix denoting tape-and-reel packaging (3,000 pcs per reel), while the device body retains the shortened marking for space constraints.
How does the guard ring feature improve reliability in the SKL13BH?
The guard ring in the SKL13BH mitigates edge breakdown by controlling electric field distribution at the die periphery, thereby enhancing stability of VRRM under transient overvoltage conditions. This structural feature increases ruggedness against repetitive voltage spikes common in automotive switching circuits - such as those generated by relay coil de-energization or motor commutation - without requiring external snubbers in many implementations.
SKL13BH 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):
- 30 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 390 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 30 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 125°C
SKL13BH FAQ
1.How can I place an order for SKL13BH through Aetrix?
Please submit a Request for Quotation (RFQ) for SKL13BH 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 SKL13BH reliable?
The price and inventory of SKL13BH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SKL13BH is usually 5 days.
3.What payment methods are accepted for SKL13BH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SKL13BH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SKL13BH?
SKL13BH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SKL13BH 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 SKL13BH?
For technical support, including SKL13BH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SKL13BH requirements.
6.How does Aetrix verify that SKL13BH is sourced from the original manufacturer or authorized distributors?
All SKL13BH 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 SKL13BH meets industry standards.
7.What is the process for return or replacement of SKL13BH?
All SKL13BH units undergo pre-shipment inspection (PSI). If there is an issue with SKL13BH, 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 SKL13BH part is unused and in its original packaging.
Return procedure for SKL13BH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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