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Diodes Incorporated SDT30100CT
- Part No.:
- SDT30100CT
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
SDT30100CT.pdf
- Description:
- DIODE ARR SCHOT 100V 15A TO2203
- Quantity:
- Payment:
- Shipping:
Inventory:5,613
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Product details
Overview
SDT30100CT from Diodes Incorporated is a 30A dual-leg trench Schottky rectifier in TO220AB package, rated for 100V peak reverse voltage, 15A average current per leg, 0.75V max forward voltage at 15A/25°C, and 100µA max reverse leakage at 100V/25°C. It serves as a high-efficiency freewheel or output rectifier in DC-DC converters and AC-DC adapters.
For engineers reviewing the SDT30100CT datasheet, SDT30100CT pinout, SDT30100CT application, or SDT30100CT equivalent, key selection criteria include its low VF stability at 125°C (0.70V @ 15A), soft switching behavior, thermal resistance of 2°C/W (TO220AB), and RoHS-compliant matte tin terminals.
Technical Context
This dual-common-cathode Schottky rectifier integrates two independent 100V/15A legs in a single TO220AB thermally optimized package. Its trench MOS structure enables low conduction loss and minimal reverse recovery charge, eliminating minority-carrier tail current.
The device operates across –55°C to +150°C junction temperature with stable IR ≤20µA at 125°C and VR = 100V. Thermal resistance RθJC = 2°C/W (with 50mm×50mm×23mm heatsink) supports high-power density designs without forced air cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage per leg; defines safe operating range in unidirectional DC bus applications. |
| IO (per leg) | 15 A - Continuous average forward current per diode leg at TA = 25°C; total device rating is 30A with shared cathode configuration. |
| VF max | 0.75 V @ 15A, 25°C - Peak forward drop determines conduction loss; 0.70 V @ 15A, 125°C confirms thermal stability for high-temp operation. |
| IR max | 100 µA @ 100V, 25°C - Low leakage preserves efficiency in standby modes; drops to 20 µA at 125°C, enabling reliable high-temp blocking. |
| RθJC | 2 °C/W - Junction-to-case thermal resistance (TO220AB); enables ~15W dissipation with 30°C case-to-ambient rise using standard heatsink. |
| IFSM | 200 A - Non-repetitive surge rating (8.3ms half-sine); supports inrush current handling in offline SMPS input stages. |
Pinout & Package
Package: TO220AB - 3-terminal, through-hole, single-row plastic power package with isolated metal tab (cathode-connected). Mounting hole accepts M3 screw; tab electrically connected to cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Left) | Anode Leg 1 | Independent anode terminal for first Schottky diode leg; used in dual-output or interleaved converter topologies. |
| Pin 2 (Center) | Cathode (Common) | Shared cathode connection for both legs; electrically tied to metal tab; requires insulated mounting if referenced to non-ground potential. |
| Pin 3 (Right) | Anode Leg 2 | Independent anode terminal for second Schottky diode leg; enables synchronous rectification or dual-channel output rectification. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage drop | 0.75 V max @ 15A/25°C - Reduces conduction loss by ≥15% vs. planar Schottky counterparts, improving efficiency in 12V–48V output rails. |
| Soft, fast switching | No reverse recovery charge (Qrr ≈ 0) - Eliminates switching loss and EMI associated with minority-carrier diodes; enables >500kHz operation. |
| High-temperature leakage stability | IR ≤20 µA @ 125°C - Maintains blocking integrity in automotive under-hood or industrial ambient environments without derating. |
| Thermally enhanced package | RθJC = 2°C/W (TO220AB) - Supports 15W continuous dissipation with passive heatsinking; reduces need for oversized thermal pads or airflow. |
Applications
| DC-DC Converter Output Rectification | AC-DC Adapter Secondary Side |
|---|---|
Use Scenario: High-current, isolated buck-derived topology delivering 12V/20A to server motherboard VRMs. IC Role / Device Role / Timing Role: Dual-leg common-cathode output rectifier replacing two discrete Schottkys; handles full load current split across legs. Use Value: 0.70V VF at 125°C minimizes thermal runaway risk and maintains >92% efficiency at full load and elevated ambient. |
Use Scenario: 36W universal-input adapter powering PoE-powered devices with tight no-load power requirements. IC Role / Device Role / Timing Role: Secondary-side freewheel diode in flyback converter; conducts during transformer reset phase. Use Value: Soft switching eliminates ringing-induced EMI, reducing need for snubbers and easing CISPR-32 Class B compliance. |
| Industrial Motor Drive Freewheeling | Telecom Power Supply Input Stage |
Use Scenario: 24V DC bus in brushless motor controller with PWM-driven H-bridge and regenerative braking. IC Role / Device Role / Timing Role: Bidirectional freewheel path for inductive kickback during PWM off-time; handles reverse energy return. Use Value: Low IR at 125°C ensures stable voltage clamp during repeated braking cycles without thermal drift or latch-up. |
Use Scenario: Front-end rectification in 48V telecom shelf power supply with active PFC and LLC resonant stage. IC Role / Device Role / Timing Role: Output rectifier for LLC secondary; conducts high-frequency sinusoidal current with minimal distortion. Use Value: Trench architecture delivers <10pF capacitance at 50V bias (Fig.5), preserving ZVS timing margin and reducing circulating losses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-30CTH02-M3/45 | Same 100V/30A rating, but TO220AC package (non-isolated tab); RθJC = 2.5°C/W; VF = 0.72V @ 15A/25°C. | Requires insulating washer for cathode-to-chassis isolation; slightly higher thermal resistance limits power density in compact layouts. | Select when cost sensitivity outweighs thermal performance and isolation requirements are absent. |
| ON Semiconductor SB3100 | Single-diode 100V/3A device in DO-201AD; not pin-compatible; VF = 0.82V @ 3A; IR = 500µA @ 25°C. | Only suitable for low-current auxiliary rails; lacks dual-leg configuration and thermal capability for primary outputs. | Use only for signal-level or bias supply rectification where SDT30100CT's current capacity is excessive. |
Compared with VS-30CTH02-M3/45, SDT30100CT offers lower RθJC and isolated tab for simplified thermal management; versus SB3100, it provides 10× current capacity and 5× lower leakage-making it appropriate for main power conversion rather than auxiliary functions.
Availability
SDT30100CT is available at Aetrix Electronics and suitable for DC-DC converters, AC-DC adapters, and industrial motor drives requiring stable component supply, long-term lifecycle support, and consistent thermal performance across temperature extremes.
Supply support for SDT30100CT 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The SDT30100CT belongs to Diodes' Trench Schottky Rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in computing, industrial, and telecom infrastructure where low VF and high-temperature stability are critical.
FAQ
Is SDT30100CT suitable for synchronous rectification circuits?
No-SDT30100CT is a passive Schottky rectifier, not a MOSFET-based synchronous rectifier controller or driver. It functions as a unidirectional, self-commutated diode. While it can replace MOSFETs in simple rectifier roles, it lacks gate drive interface or control logic required for true synchronous operation.
What is the maximum recommended case temperature for continuous operation?
The absolute maximum case temperature is defined by the junction limit: TJ(max) = +150°C. With RθJC = 2°C/W and typical PD ≈ 11.25W (15A × 0.75V), TC must remain ≤127.5°C to maintain TJ ≤150°C. Derating curves (Fig.4) confirm 15A operation up to TC = 125°C.
Does SDT30100CT have a built-in thermal shutdown feature?
No-this is a passive discrete diode with no integrated thermal protection circuitry. Overtemperature management relies entirely on external heatsinking, PCB copper area, and system-level thermal monitoring. Its high-temperature leakage stability (≤20µA at 125°C) supports safe operation without thermal runaway.
Can SDT30100CT be mounted directly to a grounded metal chassis?
Yes-but only if the cathode (pin 2 and metal tab) is intended to be at chassis ground potential. The TO220AB tab is electrically connected to the common cathode. For floating or negative-referenced cathode configurations, an insulating pad and shoulder washer must be used to prevent shorting.
SDT30100CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io) (per Diode):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 750 mV @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 100 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
SDT30100CT FAQ
1.How can I place an order for SDT30100CT through Aetrix?
Please submit a Request for Quotation (RFQ) for SDT30100CT 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 SDT30100CT reliable?
The price and inventory of SDT30100CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDT30100CT is usually 5 days.
3.What payment methods are accepted for SDT30100CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDT30100CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDT30100CT?
SDT30100CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDT30100CT 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 SDT30100CT?
For technical support, including SDT30100CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDT30100CT requirements.
6.How does Aetrix verify that SDT30100CT is sourced from the original manufacturer or authorized distributors?
All SDT30100CT 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 SDT30100CT meets industry standards.
7.What is the process for return or replacement of SDT30100CT?
All SDT30100CT units undergo pre-shipment inspection (PSI). If there is an issue with SDT30100CT, 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 SDT30100CT part is unused and in its original packaging.
Return procedure for SDT30100CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SDT30100CT Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
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BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
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BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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