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Taiwan Semiconductor Corporation SK16BH
- Part No.:
- SK16BH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SK16BH.pdf
- Description:
- DIODE SCHOTTKY 60V 1A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,205
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Product details
Overview
SK16BH from Taiwan Semiconductor is a 1 A, 60 V Schottky barrier surface-mount rectifier in DO-214AA (SMB) package, qualified to AEC-Q101, with 30 A surge capability, 0.75 V forward voltage at 1 A and 25°C, and 0.5 mA reverse leakage at rated VR and 25°C - used for freewheeling and reverse battery protection in automotive lighting systems.
For engineers reviewing the SK16BH datasheet, SK16BH pinout, SK16BH application, or SK16BH equivalent, key selection criteria include its 60 V repetitive peak reverse voltage, 125°C maximum junction temperature, guard ring overvoltage protection, moisture sensitivity level 1 rating, and compatibility with automated SMT placement.
Technical Context
The SK16BH operates as a single-die Schottky rectifier optimized for low forward voltage drop and fast switching in DC/DC converters and low-voltage inverters. Its junction-to-lead thermal resistance is 25°C/W, enabling reliable power dissipation under continuous 1 A conduction.
It features a cathode band polarity indicator, matte tin-plated solderable leads compliant with J-STD-002, and meets JESD201 Class 2 whisker resistance. The device supports operation from –55°C to +125°C junction temperature, with optional 150°C-rated variants in the same family but not applicable to SK16BH.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 60 V - maximum repetitive reverse blocking voltage; defines safe operating range in reverse-biased applications like reverse battery protection |
| IF | 1 A - continuous forward current rating; sets steady-state power delivery capacity in freewheeling paths |
| IFSM | 30 A - non-repetitive surge current (8.3 ms half-sine); enables robustness against transient inrush or inductive kickback |
| VF | 0.75 V @ 1 A, 25°C - low forward drop reduces conduction loss and self-heating in high-efficiency DC/DC stages |
| IR | 0.5 mA @ 60 V, 25°C - low leakage preserves system standby power in always-on automotive modules |
| TJ max | 125°C - maximum junction temperature; constrains thermal design margin when mounted on PCB with limited copper area |
| dV/dt | 10,000 V/µs - high critical rate of rise tolerance prevents false turn-on during fast-switching transients |
Pinout & Package
Package: DO-214AA (SMB), surface-mount plastic case with cathode band marking; dimensions per JEDEC DO-214AA, weight ≈ 0.093 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., ground or switch node) in freewheeling configuration |
| Cathode | Forward current exit / reverse-blocking terminal | Marked by band; connects to higher-potential rail (e.g., battery positive or output node) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| Guard ring structure | Enhances edge termination robustness to prevent premature avalanche breakdown under voltage transients |
| Moisture sensitivity level 1 | Enables unlimited floor life before reflow; eliminates baking requirement prior to assembly |
| Halogen-free construction | Complies with IEC 61249-2-21; supports environmental compliance for global automotive OEMs |
| High dV/dt immunity | 10,000 V/µs rating ensures stable blocking behavior in fast-switching SMPS and motor drive circuits |
Applications
| Automotive LED Lighting | DC/DC Converter Freewheeling |
|---|---|
Use Scenario: Reverse polarity protection in 12 V automotive LED headlamp modules. IC Role / Device Role / Timing Role: Discrete Schottky rectifier used as reverse-battery protection diode in input stage. Use Value: 0.75 V forward drop minimizes power loss and heat generation in compact lamp housings; AEC-Q101 qualification ensures field reliability. | Use Scenario: Freewheeling path in synchronous buck converter supplying infotainment SoC rails. IC Role / Device Role / Timing Role: Low-loss flyback diode clamping inductor current during high-side FET off-time. Use Value: 30 A surge rating handles peak inductor current spikes; 25°C/W RθJL allows direct thermal coupling to PCB copper for passive cooling. |
| Low-Voltage Inverter Output | Reverse Battery Protection |
Use Scenario: Output rectification in 24 V brushless DC motor inverter for HVAC blower. IC Role / Device Role / Timing Role: High-frequency unidirectional current steering at inverter phase outputs. Use Value: Fast recovery and low capacitance (<100 pF at 1 MHz) reduce switching losses and EMI generation. | Use Scenario: Input protection in telematics control unit exposed to jump-start transients. IC Role / Device Role / Timing Role: Series-connected blocking diode preventing reverse-current damage during incorrect battery connection. Use Value: 60 V VRRM withstands load-dump surges up to ISO 7637-2 Pulse 5a; guard ring improves ruggedness against line transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS16 (ON Semiconductor) | Same DO-214AA package, 60 V VRRM, but VF = 0.72 V @ 1 A; no AEC-Q101 qualification stated | Not automotive-qualified; suitable for industrial/commercial DC/DC where qualification is not required | Select SS16 only if AEC-Q101 is not mandated and tighter VF tolerance is needed |
| SB160 (SMC Diode Solutions) | DO-214AA, 60 V VRRM, VF = 0.75 V @ 1 A, but IR = 1.0 mA @ 25°C - 2× higher leakage than SK16BH | Higher leakage may impact ultra-low-power sleep modes in always-on vehicle networks | Prefer SK16BH where low standby current is critical; SB160 acceptable in cost-sensitive non-automotive designs |
Compared with SS16 and SB160, the SK16BH delivers automotive-grade reliability with lower leakage and identical forward drop - making it the preferred choice for safety-critical 12 V/24 V automotive subsystems requiring long-term field stability.
Availability
SK16BH is available at Aetrix Electronics and suitable for automotive LED lighting, DC/DC converter freewheeling, and reverse battery protection requiring stable component supply across production lifecycles.
Supply support for SK16BH 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 SK16BH belongs to TSC's AEC-Q101-qualified SMB Schottky rectifier product line, designed specifically for high-reliability automotive power management where low VF, surge robustness, and moisture-insensitive packaging are essential.
FAQ
What is the maximum junction temperature rating for the SK16BH?
The SK16BH has a maximum junction temperature (TJ) rating of +125°C, as specified in the Absolute Maximum Ratings table. This value applies under continuous operation and must be maintained via proper PCB thermal design - including adequate copper pour and thermal vias - to ensure long-term reliability in automotive environments where ambient temperatures can exceed 85°C.
Is the SK16BH pin-compatible with other devices in the SK1xBH family?
Yes, all SK1xBH series devices - including SK12BH through SK115BH - share identical DO-214AA (SMB) package dimensions and anode/cathode pinout. However, electrical parameters differ significantly: SK16BH is rated for 60 V VRRM, while SK115BH is rated for 150 V. Substitution requires verification of voltage, leakage, and thermal requirements for the target application.
Does the SK16BH require special handling due to moisture sensitivity?
No - the SK16BH is rated at Moisture Sensitivity Level 1 per J-STD-020, meaning it has unlimited floor life at standard conditions (≤30°C / 60% RH) and does not require dry-packaging or baking prior to reflow soldering. This simplifies manufacturing logistics and reduces process risk in high-volume SMT lines.
What is the forward voltage specification for the SK16BH under real operating conditions?
The SK16BH specifies VF = 0.75 V typical at IF = 1 A and TJ = 25°C. At elevated junction temperatures (e.g., 100°C), VF decreases slightly (~0.68 V), while at lower currents (e.g., 0.1 A), it drops to ~0.45 V. These values are measured using 0.3 ms pulse testing to avoid self-heating effects, ensuring accuracy for dynamic switching analysis.
Can the SK16BH be used in place of a standard silicon rectifier in a 12 V automotive circuit?
Yes - the SK16BH replaces standard PN-junction rectifiers in 12 V automotive circuits to reduce conduction loss and improve efficiency. With its 0.75 V forward drop versus ~0.9–1.1 V for silicon diodes, the SK16BH lowers power dissipation by ~20–30% at 1 A, directly reducing thermal stress and enabling smaller heatsinks or denser board layouts in space-constrained modules like body control units.
SK16BH 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):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 750 mV @ 1 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
SK16BH FAQ
1.How can I place an order for SK16BH through Aetrix?
Please submit a Request for Quotation (RFQ) for SK16BH 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 SK16BH reliable?
The price and inventory of SK16BH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK16BH is usually 5 days.
3.What payment methods are accepted for SK16BH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK16BH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK16BH?
SK16BH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK16BH 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 SK16BH?
For technical support, including SK16BH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK16BH requirements.
6.How does Aetrix verify that SK16BH is sourced from the original manufacturer or authorized distributors?
All SK16BH 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 SK16BH meets industry standards.
7.What is the process for return or replacement of SK16BH?
All SK16BH units undergo pre-shipment inspection (PSI). If there is an issue with SK16BH, 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 SK16BH part is unused and in its original packaging.
Return procedure for SK16BH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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