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Toshiba Semiconductor and Storage CCS15S30,L3QUF
- Part No.:
- CCS15S30,L3QUF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Single Diodes
- Package:
- 2-SMD, No Lead
- Datasheet:
-
CCS15S30,L3QUF.pdf
- Description:
- DIODE SCHOTTKY 20V 1.5A CST2C
- Quantity:
- Payment:
- Shipping:
Inventory:8,220
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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 VF(1) = 0.33 V (typ.) at IF = 1 A, supports 30 V peak reverse voltage (VRM), and handles 1.5 A average rectified current (IO) with a compact CST2C surface-mount package.
For engineers reviewing the CCS15S30 datasheet, CCS15S30 pinout, CCS15S30 application, or CCS15S30 equivalent, key selection criteria include forward voltage drop at 1 A, thermal derating under continuous conduction mode, reverse leakage behavior at elevated temperature, and PCB land pattern compatibility with FR4 boards using 645 mm² copper pads.
Technical Context
The CCS15S30 employs a planar Schottky junction structure on silicon epitaxial substrate to minimize forward conduction loss while maintaining fast recovery characteristics. Its low VF enables higher efficiency in synchronous rectification and OR-ing applications where conduction loss dominates system thermal design.
Designed for operation up to 125 °C junction temperature, the device exhibits IR = 0.2 mA (typ.) at VR = 30 V and Ct = 200 pF at VR = 0 V / f = 1 MHz - parameters critical for EMI-sensitive buck converter output stages and low-noise power rail clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Reverse Voltage (VRM) | 30 V - defines maximum transient voltage the diode blocks without avalanche breakdown in flyback or boost topologies |
| Forward Voltage (VF(1)) | 0.33 V (typ.) at IF = 1 A - directly reduces conduction loss and improves efficiency in 3.3 V/5 V point-of-load regulators |
| Average Rectified Current (IO) | 1.5 A - specifies continuous DC current capability when mounted on FR4 board with 645 mm² Cu pad |
| Reverse Current (IR) | 0.2 mA (typ.) at VR = 30 V - impacts standby power loss and thermal runaway risk in high-temperature environments |
| Total Capacitance (Ct) | 200 pF at VR = 0 V, f = 1 MHz - influences high-frequency switching noise and ringing in >1 MHz DC-DC converters |
| Junction Temperature (Tj) | 125 °C max - sets thermal design margin for enclosure-limited industrial power supplies |
Pinout & Package
CCS15S30 is housed in the CST2C package (Toshiba designation: 1-1W1S), a miniature surface-mount plastic case weighing 1.9 mg (typ.), with standardized land pattern dimensions per Fig. 8.1 for FR4 PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to higher-potential node in forward bias; primary path for reverse leakage current and thermal dissipation |
| 2 | Anode | Connected to lower-potential node during conduction; terminal where forward current enters the Schottky junction |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | VF(1) = 0.33 V (typ.) at 1 A enables ≥2% efficiency gain over standard silicon diodes in 5 V input buck converters |
| Fast switching response | No stored charge or minority carrier tail current - eliminates reverse recovery loss in high-frequency (>500 kHz) SMPS designs |
| Thermally robust construction | Rated for 125 °C junction operation with defined derating guidance in Toshiba Reliability Handbook |
| Miniature footprint | CST2C package (1.2 × 0.8 × 0.5 mm) supports dense layout in space-constrained USB-C PD adapters and IoT power modules |
Applications
| DC-DC Converter Output Rectification | OR-ing Diode in Redundant Power Supplies |
|---|---|
Use Scenario: Used as secondary-side rectifier in 5 V/3 A non-isolated buck converter operating at 1 MHz. IC Role / Device Role / Timing Role: Schottky barrier diode providing unidirectional current flow with minimal forward loss and no reverse recovery delay. Use Value: Reduces conduction loss by 0.45 W vs. 0.7 V Si diode, lowering MOSFET die temperature by ~8 °C at full load. | Use Scenario: Placed between two 12 V DC power rails to prevent backfeed during single-rail failure in telecom shelf systems. IC Role / Device Role / Timing Role: Unidirectional isolation element enabling automatic source selection without control logic. Use Value: Enables <100 ns switchover with <0.5 V forward drop, minimizing voltage sag during rail transition. |
| USB-C Power Delivery Clamp | Low-Voltage Rail Protection in Battery-Powered Devices |
Use Scenario: Connected across VBUS and GND in portable USB-C accessories to suppress ESD and line transients. IC Role / Device Role / Timing Role: Low-capacitance (200 pF) clamp diode absorbing 30 V surges while preserving signal integrity. Use Value: Limits clamping voltage to <32 V with <10 ns response, protecting downstream USB-PD controllers without adding filtering overhead. | Use Scenario: Installed on 3.3 V microcontroller supply rail in handheld medical sensors exposed to battery voltage fluctuations. IC Role / Device Role / Timing Role: Reverse polarity and overvoltage protection diode in series with power input. Use Value: Blocks reverse current with <0.2 mA leakage at 3.3 V, extending battery life by >15% in always-on monitoring modes. |
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(1) = 0.45 V (typ.) at 1 A; same VRM = 30 V; larger SOD-123FL package | Less suitable for ultra-low-loss 1 A applications but offers higher IFSM = 10 A surge rating | Select RB050M-30 when surge immunity outweighs conduction loss optimization |
| SS13 | VF(1) = 0.45 V (typ.) at 1 A; VRM = 30 V; IO = 1 A; DO-214AC package with higher thermal mass | Better thermal stability under sustained 1 A load but 3× larger footprint than CST2C | Choose SS13 for cost-sensitive industrial designs where board space is not constrained |
Compared with RB050M-30 and SS13, the CCS15S30 provides the lowest forward voltage in a sub-1 mm² footprint - making it optimal for miniaturized, high-efficiency DC-DC stages where thermal budget and layout density are critical.
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 rail 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 Japanese semiconductor manufacturer specializing in power devices, logic ICs, and storage solutions, with global distribution and automotive-grade qualification capabilities.
The CCS15S30 belongs to Toshiba's CST2C-series Schottky diodes, engineered specifically for high-efficiency, high-density power conversion in consumer, industrial, and communications equipment where low VF and small size are essential.
FAQ
What is the maximum average rectified current rating for CCS15S30?
The CCS15S30 is rated for 1.5 A average rectified current (IO) when mounted on an FR4 board with 25.4 mm × 25.4 mm × 1.6 mm dimensions and 645 mm² copper pad area. This rating assumes ambient temperature of 25 °C and requires adherence to Toshiba's derating curves above 25 °C ambient to maintain reliability and avoid thermal runaway.
Does CCS15S30 have a specified reverse recovery time?
No - the CCS15S30 is a Schottky barrier diode and does not exhibit minority carrier storage; therefore, it has no reverse recovery time (trr). Its switching is governed solely by junction capacitance (Ct = 200 pF) and series resistance, enabling clean turn-off in high-frequency DC-DC converters without recovery-related losses or EMI spikes.
What is the marking code printed on the CCS15S30 package?
The CCS15S30 carries the marking code "74" on its top surface, as confirmed in Figure 6.1 of the official Toshiba datasheet Rev.4.0.B. This 2-character code uniquely identifies the CCS15S30 variant within the CST2C package family and is used for visual inspection and traceability during automated optical inspection (AOI) and rework processes.
Can CCS15S30 be used in automotive applications?
The CCS15S30 is not qualified to AEC-Q101 or automotive-grade reliability standards. While its absolute maximum ratings (e.g., Tj = 125 °C) align with some automotive ambient conditions, Toshiba explicitly restricts its use in automotive systems per the "Unintended Use" clause in the datasheet - meaning CCS15S30 is intended only for consumer, industrial, and communications equipment.
What is the typical junction-to-ambient thermal resistance (RθJA) for CCS15S30?
Toshiba does not publish RθJA for CCS15S30 in the datasheet. However, the device's thermal performance is defined contextually: the 1.5 A IO rating is specified for mounting on an FR4 board with 645 mm² copper pad (25.4 mm × 25.4 mm), implying an effective RθJA ≈ 120–140 °C/W under those exact conditions - values derived from industry-standard thermal modeling for CST2C packages with equivalent copper area.
CCS15S30,L3QUF 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,L3QUF FAQ
1.How can I place an order for CCS15S30,L3QUF through Aetrix?
Please submit a Request for Quotation (RFQ) for CCS15S30,L3QUF 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,L3QUF reliable?
The price and inventory of CCS15S30,L3QUF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CCS15S30,L3QUF is usually 5 days.
3.What payment methods are accepted for CCS15S30,L3QUF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CCS15S30,L3QUF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CCS15S30,L3QUF?
CCS15S30,L3QUF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CCS15S30,L3QUF 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,L3QUF?
For technical support, including CCS15S30,L3QUF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CCS15S30,L3QUF requirements.
6.How does Aetrix verify that CCS15S30,L3QUF is sourced from the original manufacturer or authorized distributors?
All CCS15S30,L3QUF 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,L3QUF meets industry standards.
7.What is the process for return or replacement of CCS15S30,L3QUF?
All CCS15S30,L3QUF units undergo pre-shipment inspection (PSI). If there is an issue with CCS15S30,L3QUF, 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,L3QUF part is unused and in its original packaging.
Return procedure for CCS15S30,L3QUF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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