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Toshiba Semiconductor and Storage CMS10(TE12L,Q,M)
- Part No.:
- CMS10(TE12L,Q,M)
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
CMS10(TE12L,Q,M).pdf
- Description:
- DIODE SCHOTTKY 40V 1A M-FLAT
- Quantity:
- Payment:
- Shipping:
Inventory:1,882
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Product details
Overview
CMS10(TE12L,Q,M) from Toshiba is a Schottky barrier rectifier optimized for low-loss DC/DC conversion in compact power supplies, delivering 1.0 A average forward current, 40 V repetitive peak reverse voltage, and a maximum forward voltage of 0.55 V at 1.0 A - enabling high-efficiency operation in portable battery-powered equipment and switching mode power supplies.
For engineers reviewing the CMS10(TE12L,Q,M) datasheet, CMS10(TE12L,Q,M) pinout, CMS10(TE12L,Q,M) application, or CMS10(TE12L,Q,M) equivalent, key selection criteria include thermal resistance (135 °C/W on glass-epoxy board), junction capacitance (50 pF at 10 V), surge capability (25 A non-repetitive), reliability derating guidance, and M-FLAT™ surface-mount package compatibility with automated assembly.
Technical Context
The CMS10(TE12L,Q,M) employs a planar Schottky barrier structure to achieve low forward voltage drop and fast switching recovery, eliminating minority-carrier storage delay. Its junction temperature range (−40 to +150 °C) and thermal resistance profile support operation in thermally constrained environments such as handheld chargers and USB PD adapters.
Designed for unidirectional rectification in low-voltage, high-frequency SMPS topologies, it exhibits minimal reverse recovery charge (Qrr not specified but inherently near-zero due to majority-carrier conduction) and stable reverse leakage (<500 µA at 40 V), making it suitable for synchronous rectifier replacement where gate drive complexity must be avoided.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - supports input rails up to 36 V DC with margin for transient spikes in 24 V industrial or 5–12 V portable systems |
| IF(AV) | 1.0 A - enables continuous output current for sub-12 W converters without forced air cooling |
| VFM (max) | 0.55 V at IF = 1.0 A - reduces conduction loss to ≤0.55 W, critical for thermal management in sealed enclosures |
| IFSM | 25 A (50 Hz half-sine) - withstands inrush currents during cold-start of battery-charging circuits |
| Rth(j-a) | 135 °C/W on 6 mm × 6 mm solder land - defines minimum PCB copper area needed to maintain Tj < 120 °C at full load |
| Cj | 50 pF at VR = 10 V, 1 MHz - limits high-frequency switching noise coupling in >100 kHz flyback or buck converters |
| IRRM | ≤500 µA at VRRM = 40 V - ensures low standby power loss in always-on battery backup paths |
Pinout & Package
The CMS10(TE12L,Q,M) uses Toshiba's proprietary M-FLAT™ surface-mount package (JEITA package code 3-4E1A), measuring 3.0 × 1.4 × 1.0 mm, with two terminals: anode and cathode. It is a 2-pin device with no internal connections beyond the Schottky junction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction | Connected to higher-potential node (e.g., transformer secondary or switch node); polarity-sensitive for rectification direction |
| Cathode | Output terminal for forward conduction | Connected to output capacitor or load return; marked with band on top surface per JEDEC standard |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | VFM ≤ 0.55 V at 1.0 A enables ≥92% efficiency in 5 V/1 A buck converter at 500 kHz |
| Compact M-FLAT™ package | 3.0 × 1.4 mm footprint saves >60% board area vs. SMA packages, supporting ultra-thin portable designs |
| High surge current rating | 25 A IFSM allows direct integration into AC/DC front-end rectifiers without external fusing in Class II adapters |
| Wide operating temperature | −40 to +150 °C junction range supports deployment in automotive cabin electronics and industrial edge sensors |
| Low junction capacitance | 50 pF minimizes capacitive turn-on loss and EMI generation in high-frequency synchronous rectifier replacements |
Applications
| USB-C Power Delivery Adapter | Wireless Charging Transmitter |
|---|---|
Use Scenario: Secondary-side rectification in 20–30 W GaN-based USB-C PD adapters operating at 200–500 kHz. IC Role / Device Role / Timing Role: Uncontrolled Schottky rectifier replacing slower PN diodes to reduce conduction loss and improve thermal performance. Use Value: Enables 1.0 A continuous output at <0.55 V drop, reducing heat sink requirements and allowing fully encapsulated, fanless designs. | Use Scenario: Rectifying high-frequency AC from resonant power transfer coils (100–200 kHz) in Qi-compliant transmitters. IC Role / Device Role / Timing Role: High-speed, low-VF rectifier in full-wave bridge configuration feeding regulated 5–12 V output. Use Value: Low Cj (50 pF) prevents RF energy loss into parasitic capacitance, preserving coil Q-factor and system efficiency. |
| Portable Medical Monitor Battery Charger | Industrial IoT Sensor Node Power Supply |
Use Scenario: Input rectification for linear or buck-boost charging circuitry in battery-backed medical devices requiring UL/IEC 60601-1 compliance. IC Role / Device Role / Timing Role: Primary rectifier in isolated flyback auxiliary supply powering microcontroller and display backlight. Use Value: 40 V VRRM provides margin over 24 V nominal input; low IR (≤500 µA) preserves battery runtime during standby. | Use Scenario: Output rectification in wide-input (9–36 V) DC/DC modules powering LoRaWAN or NB-IoT sensor nodes deployed outdoors. IC Role / Device Role / Timing Role: Compact, thermally robust rectifier handling intermittent 1 A loads with ambient temperatures up to 85 °C. Use Value: Rth(j-a) = 135 °C/W on standard FR4 enables reliable operation without thermal vias, simplifying 2-layer PCB design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB050M-40TF | Same VRRM (40 V), lower IF(AV) = 0.5 A, higher VFM = 0.62 V (max) at 0.5 A | Not suitable for sustained 1 A loads; limited to <0.5 A average current | Select only when board space or cost constraints outweigh current requirement |
| SS14-HF | Same package (SOD-123), IF(AV) = 1.0 A, VRRM = 40 V, but VFM = 0.5 V (typ.) at 1 A - slightly lower typical VF | Higher IR (1 mA max at 40 V) increases standby loss in battery-critical apps | Preferable where typical efficiency matters more than worst-case leakage |
Compared with RB050M-40TF and SS14-HF, the CMS10(TE12L,Q,M) offers the lowest guaranteed VFM (0.55 V max) at full rated current and superior thermal resistance control via its M-FLAT™ footprint, making it optimal for space-constrained, thermally demanding 1 A rectification tasks.
Availability
CMS10(TE12L,Q,M) is available at Aetrix Electronics and suitable for USB-C power adapters, wireless charging transmitters, portable medical battery chargers, and industrial IoT sensor node power supplies requiring stable component supply across long-lifecycle production programs.
Supply support for CMS10(TE12L,Q,M) 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 discrete power devices, analog ICs, and logic components, with global distribution and automotive-grade qualification capabilities.
The CMS10(TE12L,Q,M) belongs to Toshiba's M-FLAT™ Schottky rectifier product line, engineered specifically for miniaturized, high-efficiency AC/DC and DC/DC power conversion in portable and battery-operated equipment.
FAQ
What is the maximum junction temperature rating for CMS10(TE12L,Q,M)?
The CMS10(TE12L,Q,M) has a maximum junction temperature (Tj) rating of +150 °C, with recommended derating to ≤120 °C for high-reliability operation. This limit is defined under absolute maximum ratings and must be maintained using appropriate PCB copper area (e.g., 6 mm × 6 mm land) to achieve the specified Rth(j-a) of 135 °C/W. Exceeding 120 °C continuously may accelerate parametric drift per Toshiba's Reliability Handbook.
Is CMS10(TE12L,Q,M) suitable for use in automotive applications?
The CMS10(TE12L,Q,M) operates across −40 to +150 °C junction temperature and meets industrial reliability standards, but it is not AEC-Q101 qualified. While used in non-safety-critical automotive cabin electronics (e.g., infotainment USB ports), it is not approved for engine bay, ADAS, or safety-related systems. For automotive-grade alternatives, consult Toshiba's AEC-Q101-certified Schottky rectifier portfolio.
What does the marking "S0" indicate on CMS10(TE12L,Q,M)?
The "S0" marking on the top surface of the CMS10(TE12L,Q,M) is Toshiba's standardized abbreviation code identifying the device as part of the CMS10 series. It appears alongside the cathode band and confirms the exact variant within the CMS10 family - distinct from other markings like "S1" or "S2" used for different voltage or current grades in the same package.
How does the M-FLAT™ package differ from standard SOD-123?
The M-FLAT™ package used by CMS10(TE12L,Q,M) (JEITA code 3-4E1A) measures 3.0 × 1.4 mm with a 1.0 mm height and features flat, coplanar terminals optimized for low-inductance, high-current routing. Unlike SOD-123, it has no molded body curvature and uses a metal leadframe exposed on the bottom for enhanced thermal conduction - verified by its 16 °C/W Rth(j-l) value.
Can CMS10(TE12L,Q,M) replace a standard PN rectifier like 1N4007?
No - the CMS10(TE12L,Q,M) is not a drop-in replacement for 1N4007. It is a 40 V, 1 A Schottky rectifier with 0.55 V VF, whereas 1N4007 is a 1000 V, 1 A PN diode with ~1.1 V VF and slow recovery. Substituting CMS10(TE12L,Q,M) in high-voltage AC line applications would cause immediate breakdown. It is intended only for low-voltage, high-frequency DC/DC rectification where VRRM ≤ 40 V is sufficient.
CMS10(TE12L,Q,M) Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- SOD-128
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 40 V
- Capacitance @ Vr, F:
- 50pF @ 10V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- M-FLAT (2.4x3.8)
- Operating Temperature - Junction:
- -40°C ~ 150°C
CMS10(TE12L,Q,M) FAQ
1.How can I place an order for CMS10(TE12L,Q,M) through Aetrix?
Please submit a Request for Quotation (RFQ) for CMS10(TE12L,Q,M) 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 CMS10(TE12L,Q,M) reliable?
The price and inventory of CMS10(TE12L,Q,M) are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CMS10(TE12L,Q,M) is usually 5 days.
3.What payment methods are accepted for CMS10(TE12L,Q,M)?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CMS10(TE12L,Q,M) transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CMS10(TE12L,Q,M)?
CMS10(TE12L,Q,M) orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CMS10(TE12L,Q,M) 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 CMS10(TE12L,Q,M)?
For technical support, including CMS10(TE12L,Q,M) datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CMS10(TE12L,Q,M) requirements.
6.How does Aetrix verify that CMS10(TE12L,Q,M) is sourced from the original manufacturer or authorized distributors?
All CMS10(TE12L,Q,M) 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 CMS10(TE12L,Q,M) meets industry standards.
7.What is the process for return or replacement of CMS10(TE12L,Q,M)?
All CMS10(TE12L,Q,M) units undergo pre-shipment inspection (PSI). If there is an issue with CMS10(TE12L,Q,M), 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 CMS10(TE12L,Q,M) part is unused and in its original packaging.
Return procedure for CMS10(TE12L,Q,M):
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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