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Toshiba Semiconductor and Storage CCS15S30,L3IDTF
- Part No.:
- CCS15S30,L3IDTF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Single Diodes
- Package:
- 2-SMD, No Lead
- Datasheet:
-
CCS15S30,L3IDTF.pdf
- Description:
- DIODE SCHOTTKY 20V 1.5A CST2C
- Quantity:
- Payment:
- Shipping:
Inventory:9,216
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Product details
Overview
CCS15S30 from Toshiba Electronic Devices & Storage Corporation is a silicon epitaxial Schottky barrier diode optimized for high-speed switching in low-voltage DC/DC converters and power management circuits. It delivers a typical forward voltage of 0.33 V at 1 A, supports 30 V peak reverse voltage, and handles 1.5 A average rectified current in the CST2C surface-mount package.
For engineers reviewing the CCS15S30 datasheet, CCS15S30 pinout, CCS15S30 application, or CCS15S30 equivalent, key selection criteria include low VF for efficiency-critical 3.3 V/5 V rail rectification, thermal design margins under pulsed IFSM = 5 A, and compatibility with FR4 PCB land patterns per TOSHIBA's 1-1W1S footprint.
Technical Context
The CCS15S30 employs a planar Schottky junction structure on silicon epitaxial substrate to minimize forward conduction loss while maintaining controlled reverse leakage. Its low VF(1) = 0.33 V (typ.) and VF(2) = 0.39 V (typ.) at 1 A and 1.5 A respectively enable high-efficiency synchronous rectification in compact power supplies.
Designed for operation up to TJ = 125 °C, the device exhibits IR = 0.2 mA (typ.) at VR = 30 V and Ct = 200 pF (typ.) at VR = 0 V / f = 1 MHz - parameters critical for EMI-sensitive buck converter output stages and OR-ing applications where capacitance and leakage directly impact transient response and standby loss.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Reverse Voltage | 30 V - defines maximum blocking capability in flyback or boost topologies without avalanche breakdown |
| Forward Voltage (IF = 1 A) | 0.33 V (typ.) - reduces conduction loss and heat generation in high-current, low-VOUT DC/DC stages |
| Average Rectified Current | 1.5 A - sets continuous output current limit for compact SMD power rectifiers on FR4 boards |
| Non-repetitive Surge Current | 5 A (10 ms pulse) - withstands inrush and transient overloads during startup or load dump |
| Junction Temperature Range | –55 °C to +125 °C - enables deployment in industrial ambient environments with minimal derating |
| Total Capacitance | 200 pF (at 0 V, 1 MHz) - impacts high-frequency switching noise and snubber design in >500 kHz converters |
Pinout & Package
Package: CST2C (TOSHIBA designation: 1-1W1S), ultra-small surface-mount plastic package with 1.9 mg typical weight and optimized thermal pad layout for FR4 boards (25.4 mm × 25.4 mm × 1.6 mm, Cu pad: 645 mm²).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to higher-potential node (e.g., switch node in buck converter); carries full output current during conduction |
| 2 | Anode | Connected to lower-potential node (e.g., ground or output rail); polarity must be observed to prevent reverse conduction failure |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | VF = 0.33 V (typ.) at 1 A enables ≥2% efficiency gain vs. standard PN diodes in 5 V input/3.3 V output converters |
| Controlled reverse leakage | IR = 0.2 mA (typ.) at VR = 30 V supports stable operation in battery-powered standby circuits |
| High surge tolerance | IFSM = 5 A (10 ms) accommodates repetitive inrush events without bond-wire fusing |
| Thermally optimized package | CST2C footprint with exposed thermal pad design improves θJA by ~15% vs. generic SOD-123 equivalents |
Applications
| DC/DC Converter Output Rectification | OR-ing Diode in Redundant Power Supplies |
|---|---|
Use Scenario: Used as secondary-side rectifier in 500 kHz synchronous buck converter delivering 3.3 V/1.2 A from 12 V input. IC Role / Device Role / Timing Role: Schottky rectifier replacing MOSFET synchronous switch where gate drive complexity is undesirable. Use Value: Delivers 0.33 V forward drop at full load, reducing conduction loss by 0.4 W versus 0.7 V PN diode and easing thermal design. | Use Scenario: Placed in parallel power paths of dual 5 V supplies feeding common backplane bus. IC Role / Device Role / Timing Role: Unidirectional current valve preventing reverse current flow during supply fault or hot-swap event. Use Value: Low VF ensures minimal voltage drop (<16.5 mV at 50 mA bias), preserving bus regulation margin across temperature. |
| Low-Voltage Polarity Protection | Clamp Diode in USB-C Power Delivery Circuits |
Use Scenario: Installed between VBUS and system ground to block reverse connection of 5 V adapter with incorrect polarity. IC Role / Device Role / Timing Role: Reverse-polarity protection element conducting only during fault condition. Use Value: Withstands 30 V reverse standoff and conducts <0.5 mA leakage at room temperature, minimizing quiescent drain on backup batteries. | Use Scenario: Integrated into USB-C PD sink port to clamp transient overvoltage spikes on CC and VCONN lines. IC Role / Device Role / Timing Role: Fast-turn-on clamp limiting line voltage to safe levels during hot-plug ESD events. Use Value: 200 pF capacitance and sub-0.4 V turn-on ensure clamping action within <1 ns, protecting Type-C controller I/O pins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB050M-30 | Higher VF = 0.45 V (typ.) at 1 A; same 30 V VR and CST2C package | Suitable for cost-sensitive designs where 120 mV higher forward drop is acceptable | Select RB050M-30 if thermal margin exceeds 15°C and BOM cost reduction is prioritized over peak efficiency |
| SS13 | Different package (SOD-123); VF = 0.45 V (typ.), VR = 30 V, IO = 1 A (lower current rating) | Limited to ≤1 A continuous use; requires PCB land pattern revision | Choose SS13 only when legacy SOD-123 footprint is fixed and 0.5 A derating is acceptable |
Compared with RB050M-30 and SS13, the CCS15S30 provides the lowest VF among CST2C-packaged 30 V Schottkys, enabling higher efficiency in space-constrained 1.5 A applications without layout change - critical for next-gen portable power modules.
Availability
CCS15S30 is available at Aetrix Electronics and suitable for DC/DC converter output rectification, OR-ing diode implementation in redundant power supplies, and low-voltage polarity protection requiring stable component supply and consistent parametric performance across production lots.
Supply support for CCS15S30 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
Toshiba Electronic Devices & Storage Corporation is a global semiconductor manufacturer specializing in power devices, logic ICs, and storage solutions, with core expertise in silicon process technology and reliability engineering.
The CCS15S30 belongs to Toshiba's CST2C-series Schottky barrier diodes, engineered specifically for high-efficiency, high-density power conversion in consumer, industrial, and computing applications where low VF and thermal robustness are essential.
FAQ
What is the maximum average rectified current rating for CCS15S30?
The CCS15S30 is rated for 1.5 A average rectified current when mounted on an FR4 board measuring 25.4 mm × 25.4 mm × 1.6 mm with a 645 mm² copper pad. This rating assumes Ta = 25 °C and accounts for thermal resistance to ambient; derating is required above 25 °C ambient or with smaller copper areas. The CCS15S30 datasheet specifies this value in Absolute Maximum Ratings Table 4.
Does CCS15S30 have a specified junction-to-ambient thermal resistance (θJA)?
No, the CCS15S30 datasheet does not list a guaranteed θJA value. Instead, Toshiba specifies thermal performance via the test board condition: 25.4 mm × 25.4 mm × 1.6 mm FR4 with 645 mm² Cu pad. Actual θJA depends on PCB layout, airflow, and adjacent heat sources. For thermal design, engineers should use the measured TJ limits (125 °C max) and IR/VR derating curves in the CCS15S30 datasheet Figures 9.1–9.3.
What is the marking code printed on the CCS15S30 package?
Each CCS15S30 device is marked with the code "74" on its top surface, per Figure 6.1 in the official Toshiba datasheet. This two-character laser marking identifies the part number CCS15S30 unambiguously and is used for traceability and visual inspection during assembly. The full part number "CCS15S30" also appears in the marking legend.
Can CCS15S30 be used in automotive applications?
The CCS15S30 is not qualified to AEC-Q101 or automotive-grade reliability standards. Toshiba explicitly restricts its use in equipment requiring extraordinarily high reliability - including automobiles - per the "Unintended Use" clause in the datasheet. For automotive applications, engineers must select AEC-Q101-qualified Schottky diodes with validated PPAP documentation; the CCS15S30 is intended for industrial and consumer power systems only.
How does the reverse leakage current of CCS15S30 behave at elevated temperatures?
The CCS15S30 exhibits increased reverse leakage (IR) with rising junction temperature, as shown in Figure 9.2 of its datasheet. At VR = 30 V, IR rises from 0.2 mA (typ.) at 25 °C to approximately 2.5 mA (typ.) at 125 °C. This behavior necessitates thermal-aware design: designers must verify that total power dissipation (VR × IR) remains within safe limits and does not trigger thermal runaway, especially in high-temperature enclosures.
CCS15S30,L3IDTF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- 2-SMD, No Lead
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 20 V
- Current - Average Rectified (Io):
- 1.5A
- Voltage - Forward (Vf) (Max) @ If:
- 400 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 30 V
- Capacitance @ Vr, F:
- 200pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- CST2C
- Operating Temperature - Junction:
- 125°C (Max)
CCS15S30,L3IDTF FAQ
1.How can I place an order for CCS15S30,L3IDTF through Aetrix?
Please submit a Request for Quotation (RFQ) for CCS15S30,L3IDTF 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 CCS15S30,L3IDTF reliable?
The price and inventory of CCS15S30,L3IDTF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CCS15S30,L3IDTF is usually 5 days.
3.What payment methods are accepted for CCS15S30,L3IDTF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CCS15S30,L3IDTF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CCS15S30,L3IDTF?
CCS15S30,L3IDTF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CCS15S30,L3IDTF 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 CCS15S30,L3IDTF?
For technical support, including CCS15S30,L3IDTF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CCS15S30,L3IDTF requirements.
6.How does Aetrix verify that CCS15S30,L3IDTF is sourced from the original manufacturer or authorized distributors?
All CCS15S30,L3IDTF 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 CCS15S30,L3IDTF meets industry standards.
7.What is the process for return or replacement of CCS15S30,L3IDTF?
All CCS15S30,L3IDTF units undergo pre-shipment inspection (PSI). If there is an issue with CCS15S30,L3IDTF, 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 CCS15S30,L3IDTF part is unused and in its original packaging.
Return procedure for CCS15S30,L3IDTF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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