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Toshiba Semiconductor and Storage CCS15S40,L3F
- Part No.:
- CCS15S40,L3F
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Single Diodes
- Package:
- 2-SMD, No Lead
- Datasheet:
-
CCS15S40,L3F.pdf
- Description:
- DIODE SCHOTTKY 40V 1.5A CST2C
- Quantity:
- Payment:
- Shipping:
Inventory:108,152
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Product details
Overview
CCS15S40 from Toshiba Electronic Devices & Storage Corporation is a silicon epitaxial Schottky barrier diode optimized for high-speed switching applications, featuring VF(2) = 0.47 V (typ.) at IF = 1.5 A, VR = 30 V, IO = 1.5 A average rectified current, and CST2C surface-mount package. It serves as a low-loss freewheeling or DC-DC synchronous rectifier in compact power supplies.
For engineers reviewing the CCS15S40 datasheet, CCS15S40 pinout, CCS15S40 application, or CCS15S40 equivalent, key selection criteria include forward voltage drop at rated current, reverse leakage under 40 V bias, thermal derating limits, junction temperature margin up to 125 °C, and compatibility with FR4 PCB land patterns per Fig. 8.1.
Technical Context
This Schottky diode uses a metal–semiconductor junction to achieve fast recovery (no minority-carrier storage), enabling operation in high-frequency DC-DC converters and OR-ing circuits. Its low VF reduces conduction loss, while limited reverse blocking (VR = 30 V) constrains use to low-voltage secondary-side rectification.
The CST2C package supports automated placement and has a thermal resistance of ~200 K/W (junction-to-ambient, mounted on 645 mm² Cu pad), requiring careful layout for thermal management under continuous 1.5 A load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Reverse Voltage | 40 V - maximum transient reverse voltage the diode can withstand without breakdown |
| Reverse Voltage (VR) | 30 V - continuous DC reverse blocking capability under normal operation |
| Forward Voltage (VF) | 0.47 V (typ.) at IF = 1.5 A - directly lowers conduction loss in high-current paths |
| Average Rectified Current | 1.5 A - maximum continuous forward current with specified thermal conditions |
| Reverse Current | 0.2 mA max at VR = 40 V - impacts standby power and thermal runaway risk at elevated temperature |
| Total Capacitance | 170 pF typ. at VR = 0 V, f = 1 MHz - affects high-frequency switching noise and snubber design |
Pinout & Package
Package: CST2C - ultra-small surface-mount plastic package (1.2 × 0.8 × 0.5 mm), weight 1.9 mg (typ.), designed for high-density PCB layouts and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to higher-potential node in forward bias; carries return current path |
| 2 | Anode | Connected to lower-potential node in forward bias; source of forward current |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | VF = 0.47 V (typ.) at 1.5 A enables >3 % efficiency gain vs. standard PN diodes in 5 V output rails |
| Small footprint package | CST2C (1.2 × 0.8 mm) saves >60 % board area versus SOD-123, critical for space-constrained USB-C PD adapters |
| High-speed switching | No minority-carrier storage ensures <1 ns reverse recovery - eliminates switching tail current in 1–3 MHz converters |
| Thermal robustness | Junction temperature rating of 125 °C allows operation in sealed enclosures with 40 °C ambient + 25 K rise |
Applications
| USB-C Power Delivery Adapter | Industrial IoT Sensor Node PSU |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 20–30 W flyback converter powering USB-C PD sink. IC Role / Device Role / Timing Role: Low-VF Schottky rectifier replacing MOSFET gate driver + FET, reducing component count and BOM cost. Use Value: 0.47 V VF cuts conduction loss by 450 mW vs. 0.9 V PN diode at 1.5 A, lowering thermal stress on 2-layer FR4 PCB. | Use Scenario: Input polarity protection and reverse-battery safeguard in battery-powered edge sensor node. IC Role / Device Role / Timing Role: Unidirectional current path enabler with minimal forward drop to preserve battery runtime. Use Value: 1.5 A IO rating supports peak 1.2 A modem transmit bursts without derating; CST2C footprint fits 8 mm² module area budget. |
| 5 V/3.3 V Point-of-Load Converter | Automotive Body Control Module (Non-Safety) |
Use Scenario: Output rectification in compact 1 MHz buck converter supplying FPGA I/O banks. IC Role / Device Role / Timing Role: High-frequency rectifier minimizing switching node ringing due to low Ct (170 pF). Use Value: 170 pF capacitance limits displacement current during 10 ns edge transitions, reducing EMI filter burden. | Use Scenario: Reverse-voltage protection for 12 V accessory rail feeding LIN transceivers and LED drivers. IC Role / Device Role / Timing Role: Fail-safe clamp preventing damage from jump-start or load-dump transients. Use Value: 5 A non-repetitive surge rating handles 10 ms load-dump spikes per ISO 7637-2 Pulse 5a without failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB050M-40TF | Higher VF = 0.52 V (typ.) at 1.5 A; same VR = 40 V; SOD-523 package (1.6 × 0.8 mm) | Larger footprint increases board area by 33 %; slightly higher conduction loss | Choose RB050M-40TF only if CST2C placement equipment is unavailable |
| SS12 | Lower IO = 1.0 A; VF = 0.5 V (typ.); SMA package (4.5 × 2.7 mm) | Not suitable for space-constrained designs; thermal performance inferior on small pads | Select SS12 only when legacy SMA footprint must be retained and current demand ≤ 1.0 A |
Compared with RB050M-40TF and SS12, the CCS15S40 delivers the lowest VF in the smallest footprint among 30–40 V Schottky diodes rated ≥1.5 A, making it optimal for miniaturized, thermally constrained DC-DC stages where conduction loss dominates efficiency.
Availability
CCS15S40 is available at Aetrix Electronics and suitable for USB-C power adapters, industrial IoT sensor nodes, and point-of-load converters requiring stable component supply, consistent parametric performance across production lots, and long-term lifecycle support.
Supply support for CCS15S40 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 designs and manufactures discrete semiconductors, power devices, and logic ICs with emphasis on energy efficiency and reliability.
The CCS15S40 belongs to Toshiba's CST2C-series Schottky diodes, engineered specifically for high-frequency, space-constrained power conversion in consumer and industrial applications where low VF and minimal parasitic capacitance are critical.
FAQ
What is the maximum continuous forward current rating for CCS15S40?
The CCS15S40 is rated for an average rectified current (IO) of 1.5 A under specified thermal conditions: mounted on an FR4 board with 645 mm² copper pad. Exceeding this current without adequate heatsinking risks junction temperature exceeding 125 °C, accelerating degradation per Toshiba's Reliability Handbook derating guidelines.
Does CCS15S40 have a documented reverse recovery time (trr)?
No - the CCS15S40 is a Schottky barrier diode and does not exhibit minority-carrier storage; therefore, trr is not specified. Its switching behavior is governed by junction capacitance (Ct = 170 pF typ.) and series resistance, enabling effective operation in converters switching up to 3 MHz without reverse recovery loss.
What is the marking code printed on the CCS15S40 package?
The CCS15S40 is marked with "7D" on its top surface, as shown in Fig. 6.1 of the official datasheet. This 2-character code uniquely identifies the device variant and is used for traceability and visual inspection during assembly and quality control.
Can CCS15S40 be used in automotive applications?
The CCS15S40 is not qualified to AEC-Q101 and is not recommended for safety-critical automotive systems (e.g., ADAS, powertrain). However, it may be used in non-safety automotive body electronics - such as infotainment USB ports or interior lighting - provided thermal design accounts for ambient temperatures up to 105 °C and transients are clamped externally.
What is the thermal resistance (RθJA) of CCS15S40 on a standard FR4 board?
Toshiba specifies thermal performance based on a 25.4 × 25.4 × 1.6 mm FR4 board with 645 mm² copper pad. While RθJA is not explicitly listed, junction-to-ambient rise of ~200 K/W is inferred from power dissipation limits and 125 °C Tj max. For precise thermal modeling, use the device's 1.9 mg mass and CST2C package geometry in simulation tools.
CCS15S40,L3F 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):
- 40 V
- Current - Average Rectified (Io):
- 1.5A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 1.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 40 V
- Capacitance @ Vr, F:
- 170pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- CST2C
- Operating Temperature - Junction:
- 125°C (Max)
CCS15S40,L3F FAQ
1.How can I place an order for CCS15S40,L3F through Aetrix?
Please submit a Request for Quotation (RFQ) for CCS15S40,L3F 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 CCS15S40,L3F reliable?
The price and inventory of CCS15S40,L3F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CCS15S40,L3F is usually 5 days.
3.What payment methods are accepted for CCS15S40,L3F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CCS15S40,L3F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CCS15S40,L3F?
CCS15S40,L3F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CCS15S40,L3F 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 CCS15S40,L3F?
For technical support, including CCS15S40,L3F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CCS15S40,L3F requirements.
6.How does Aetrix verify that CCS15S40,L3F is sourced from the original manufacturer or authorized distributors?
All CCS15S40,L3F 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 CCS15S40,L3F meets industry standards.
7.What is the process for return or replacement of CCS15S40,L3F?
All CCS15S40,L3F units undergo pre-shipment inspection (PSI). If there is an issue with CCS15S40,L3F, 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 CCS15S40,L3F part is unused and in its original packaging.
Return procedure for CCS15S40,L3F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CCS15S40,L3F Tags
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