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Toshiba Semiconductor and Storage CMS17(TE12L,Q,M)
- Part No.:
- CMS17(TE12L,Q,M)
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
CMS17(TE12L,Q,M).pdf
- Description:
- DIODE SCHOTTKY 30V 2A M-FLAT
- Quantity:
- Payment:
- Shipping:
Inventory:2,998
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Product details
Overview
CMS17(TE12L,Q,M) from TOSHIBA is a Schottky barrier diode optimized for high-efficiency DC/DC conversion in compact power supplies, featuring a maximum forward voltage of 0.48 V at 2.0 A, 30 V repetitive peak reverse voltage, and 2.0 A average forward current. It is packaged in Toshiba's M-FLAT™ surface-mount package for low-profile board assembly in space-constrained applications like portable battery chargers and SMPS outputs.
For engineers reviewing the CMS17(TE12L,Q,M) datasheet, CMS17(TE12L,Q,M) pinout, CMS17(TE12L,Q,M) application, or CMS17(TE12L,Q,M) equivalent, key selection criteria include thermal resistance (Rth(j-a) = 210 °C/W on glass-epoxy board), junction capacitance (90 pF at 10 V), peak reverse current (100 µA at 30 V), and derating guidance for Tj ≤ 120 °C under continuous operation.
Technical Context
The CMS17(TE12L,Q,M) employs a planar Schottky barrier structure with low series resistance and minimal minority-carrier storage, enabling fast switching with negligible reverse recovery time. Its low VFM and moderate VRRM target mid-voltage, high-current rectification where conduction loss dominates over switching loss.
Thermal performance is highly dependent on PCB layout: Rth(j-a) ranges from 60 °C/W (ceramic board, 2 mm × 2 mm pad) to 210 °C/W (glass-epoxy board, 2.1 mm × 1.4 mm pad). The device requires careful derating per Toshiba's reliability handbook-especially for Tj > 120 °C and VR near 30 V due to temperature-sensitive reverse leakage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum reverse blocking capability; sets upper limit for output rectification in 24 V nominal systems. |
| IF(AV) | 2.0 A at Ta = 77 °C - Continuous DC output current rating under defined board thermal conditions. |
| VFM (max) | 0.48 V at IFM = 2.0 A - Directly determines conduction loss: ~0.96 W dissipation at full load. |
| IRRM (max) | 100 µA at VRRM = 30 V - Reverse leakage impacts standby power and thermal stability at elevated Tj. |
| Cj | 90 pF at VR = 10 V - Junction capacitance affects high-frequency switching noise and EMI filter design. |
| Rth(j-a) | 210 °C/W - Thermal resistance on standard glass-epoxy board; dictates minimum copper area needed for safe Tj control. |
| Tj range | −40 to 150 °C - Operating junction temperature envelope; reliability derating recommended below 120 °C. |
Pinout & Package
Package: M-FLAT™ (Toshiba proprietary surface-mount package, JEITA code 3-4E1A, dimensions 3.0 × 1.4 × 1.4 mm, weight 0.023 g).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to switching node or input rail; low-resistance metal contact optimized for high-current pulse handling. |
| Cathode | Forward current exit / reverse voltage reference | Connected to output capacitor ground or common return; large-area metallization aids heat spreading. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | VFM ≤ 0.48 V at 2.0 A enables ≥92% efficiency in 5–12 V output SMPS stages. |
| Compact M-FLAT™ package | 3.0 × 1.4 mm footprint saves >40% board area vs. SOD-123 while maintaining thermal pad access. |
| Controlled junction capacitance | 90 pF at 10 V supports clean turn-off in 500 kHz–1 MHz converters without excessive ringing. |
| High surge tolerance | IFSM = 30 A (50 Hz half-sine) withstands inrush and transient overload in battery-input circuits. |
| Wide operating temperature | Rated from −40 to 150 °C junction enables use in sealed industrial enclosures without forced cooling. |
Applications
| USB-C PD Adapters | Portable Power Banks |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 20–60 W USB-C PD adapters with GaN primary-side switching. IC Role / Device Role / Timing Role: Low-loss output rectifier replacing MOSFET gate drivers and discrete FETs in cost-sensitive designs. Use Value: Reduces conduction loss by 35% vs. standard silicon diodes, lowering thermal stress on compact aluminum-cased adapters. | Use Scenario: Battery charging path isolation and load dump protection in multi-cell Li-ion power banks. IC Role / Device Role / Timing Role: Reverse-polarity and backfeed protection diode in 3.7–12.6 V battery stack interfaces. Use Value: Enables <10 mW standby power with IR ≤ 100 µA at 12.6 V, extending shelf life without compromising charge efficiency. |
| Industrial SMPS Modules | LED Driver Outputs |
Use Scenario: Output rectification in DIN-rail mounted 24 V/5 A industrial DC-DC modules operating in 0–60 °C ambient. IC Role / Device Role / Timing Role: Primary output freewheeling diode in flyback and forward converter topologies. Use Value: Maintains stable VFM across temperature with <±5% drift from −25 to 85 °C, simplifying thermal margining. | Use Scenario: Constant-current LED string rectification in outdoor signage drivers exposed to thermal cycling. IC Role / Device Role / Timing Role: High-reliability output clamp and reverse-bias protection for PWM-controlled LED strings. Use Value: Withstands 150 °C junction temperature during summer ambient peaks, eliminating thermal shutdown events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB055LAM-40TR | Higher VRRM (40 V), slightly higher VFM (0.52 V max at 2 A), same M-FLAT™ package. | Better suited for 36 V nominal systems; less optimal for 24 V where lower VFM improves efficiency. | Select RB055LAM-40TR when reverse voltage margin >10 V is required; otherwise CMS17(TE12L,Q,M) offers lower conduction loss. |
| SS24-HF | Same VRRM (40 V), higher IF(AV) (3 A), larger SOD-123 package (3.7 × 1.6 mm), Rth(j-a) ≈ 250 °C/W. | Requires more PCB area and delivers higher thermal resistance; better for lower-current, higher-voltage use cases. | Choose SS24-HF only if 3 A rating is mandatory and board space allows larger footprint; CMS17(TE12L,Q,M) provides superior power density. |
Compared with RB055LAM-40TR and SS24-HF, CMS17(TE12L,Q,M) delivers the lowest VFM in its 30 V class within the smallest M-FLAT™ footprint, making it optimal for thermally constrained, efficiency-critical 24 V output SMPS where layout area and junction temperature are limiting factors.
Availability
CMS17(TE12L,Q,M) is available at Aetrix Electronics and suitable for USB-C PD adapters, portable power banks, and industrial SMPS modules requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.
Supply support for CMS17(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 power devices, logic ICs, and memory solutions, with decades of leadership in Schottky and MOSFET technologies.
The CMS17 belongs to Toshiba's M-FLAT™ Schottky diode product line, engineered for high-density, high-efficiency DC/DC conversion in consumer and industrial power supplies where low forward voltage and compact packaging are critical.
FAQ
What is the maximum junction temperature rating for CMS17(TE12L,Q,M)?
The absolute maximum junction temperature (Tj) for CMS17(TE12L,Q,M) is 150 °C. However, Toshiba recommends derating to ≤120 °C for continuous operation to ensure long-term reliability, especially under high VR or high IF conditions. This guidance is based on thermal runaway risk analysis in Schottky diodes and is documented in the Toshiba Semiconductor Reliability Handbook.
Does CMS17(TE12L,Q,M) have a specified reverse recovery time (trr)?
No-CMS17(TE12L,Q,M) is a Schottky barrier diode and exhibits no minority-carrier storage, so trr is effectively zero. This eliminates reverse recovery losses and associated EMI, making CMS17(TE12L,Q,M) ideal for high-frequency switching applications up to 1 MHz without snubber networks.
What PCB layout recommendations apply to CMS17(TE12L,Q,M) for optimal thermal performance?
For CMS17(TE12L,Q,M), Toshiba specifies Rth(j-a) = 210 °C/W when mounted on a glass-epoxy board with a 2.1 mm × 1.4 mm solder land. To improve thermal performance, increase copper area under the cathode pad and use internal ground planes. On ceramic boards (2 mm × 2 mm land), Rth(j-a) drops to 60 °C/W-so layout must match the intended thermal model used in design.
Is CMS17(TE12L,Q,M) suitable for automotive applications?
CMS17(TE12L,Q,M) is not qualified to AEC-Q101 and is not recommended for automotive applications. Toshiba explicitly excludes automotive use in its RESTRICTIONS ON PRODUCT USE notice. For automotive-grade alternatives, consult Toshiba's AEC-Q101-certified Schottky diode portfolio-CMS17(TE12L,Q,M) is intended for industrial and consumer power supplies only.
What is the marking code for CMS17(TE12L,Q,M) on the device body?
The marking code for CMS17(TE12L,Q,M) is "SG", as confirmed in Toshiba's official documentation. This two-character laser mark appears on the top surface of the M-FLAT™ package and is used for traceability and visual identification during assembly and inspection of CMS17(TE12L,Q,M).
CMS17(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):
- 30 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 480 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 30 V
- Capacitance @ Vr, F:
- 90pF @ 10V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- M-FLAT (2.4x3.8)
- Operating Temperature - Junction:
- -40°C ~ 150°C
CMS17(TE12L,Q,M) FAQ
1.How can I place an order for CMS17(TE12L,Q,M) through Aetrix?
Please submit a Request for Quotation (RFQ) for CMS17(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 CMS17(TE12L,Q,M) reliable?
The price and inventory of CMS17(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 CMS17(TE12L,Q,M) is usually 5 days.
3.What payment methods are accepted for CMS17(TE12L,Q,M)?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CMS17(TE12L,Q,M) transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CMS17(TE12L,Q,M)?
CMS17(TE12L,Q,M) orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CMS17(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 CMS17(TE12L,Q,M)?
For technical support, including CMS17(TE12L,Q,M) datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CMS17(TE12L,Q,M) requirements.
6.How does Aetrix verify that CMS17(TE12L,Q,M) is sourced from the original manufacturer or authorized distributors?
All CMS17(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 CMS17(TE12L,Q,M) meets industry standards.
7.What is the process for return or replacement of CMS17(TE12L,Q,M)?
All CMS17(TE12L,Q,M) units undergo pre-shipment inspection (PSI). If there is an issue with CMS17(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 CMS17(TE12L,Q,M) part is unused and in its original packaging.
Return procedure for CMS17(TE12L,Q,M):
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CMS17(TE12L,Q,M) Tags
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