My Inquiry
My Account
Diodes Incorporated SDT20100CT
- Part No.:
- SDT20100CT
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
SDT20100CT.pdf
- Description:
- DIODE ARR SCHOT 100V 10A TO2203
- Quantity:
- Payment:
- Shipping:
Inventory:22
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SDT20100CT from Diodes Incorporated is a 20A dual common-cathode Trench Schottky rectifier in TO220AB package, rated for 100V peak reverse voltage, with max 0.71V forward voltage at 10A/25°C and 80µA reverse leakage at 100V/25°C; used as output rectifier in high-efficiency DC-DC converters and AC-DC adapters.
For engineers reviewing the SDT20100CT datasheet, SDT20100CT pinout, SDT20100CT application, or SDT20100CT equivalent, this page delivers verified electrical specs, thermal resistance (2°C/W junction-to-case), dual-leg configuration, automotive-grade packaging options (ITO220AB), and real-world switching behavior for power supply design validation.
Technical Context
This dual-diode Schottky rectifier integrates two independent 10A legs sharing a common cathode terminal, enabling synchronous rectification or dual-output configurations. Its trench MOS structure achieves low VF and stable IR up to +150°C junction temperature.
Designed for high-frequency switching topologies, it exhibits soft recovery with negligible reverse recovery charge (Qrr not specified but implied by "soft, fast switching capability"), and operates within -55°C to +150°C ambient range with derated current above +100°C case temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage per leg; defines safe operating limit in flyback or buck converter freewheel paths. |
| IO (per leg) | 10 A - Continuous average forward current per diode leg at TA=25°C; total device rating is 20A with shared cathode. |
| VF max | 0.71 V @ 10A, 25°C - Directly impacts conduction loss; enables <0.71W dissipation per leg at 10A, critical for thermal management. |
| IR max | 80 µA @ 100V, 25°C - Low leakage preserves efficiency in standby mode and high-temperature operation. |
| RθJC | 2 °C/W - Junction-to-case thermal resistance (TO220AB); allows precise heatsink sizing for 10A continuous operation. |
| TJ range | -55°C to +150°C - Full industrial and automotive-grade junction temperature support without parameter degradation. |
| IFSM | 150 A - Non-repetitive surge rating (8.3ms half-sine); withstands inrush currents in AC-DC front-end designs. |
Pinout & Package
Package: TO220AB (Generic) - 3-lead molded plastic package with isolated tab, UL 94V-0 rated, matte tin-plated copper leadframe, 1.85g weight. Mounting tab is cathode-connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode 1) | Anode of first Schottky diode leg | Connects to transformer secondary or switch node in dual-output DC-DC; electrically isolated from Pin 2. |
| Pin 2 (Cathode) | Common cathode for both diode legs | Shared output node; must be thermally and electrically connected to heatsink; carries full 20A combined current. |
| Pin 3 (Anode 2) | Anode of second Schottky diode leg | Enables independent input path for second output rail or phase interleaving in multiphase designs. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage drop | 0.71V max @ 10A/25°C reduces conduction loss by ~30% vs. standard silicon rectifiers in 12V output rails. |
| Soft, fast switching capability | No reverse recovery tail current minimizes EMI and eliminates snubber requirements in >100kHz SMPS designs. |
| High-temperature leakage stability | 20µA IR max @ 100V/125°C ensures reliable hold-up time in automotive under-hood environments. |
| Lead-free & halogen-free construction | RoHS 3 compliant (2015/863/EU) and "Green" certified (<900ppm Br+Cl, <1000ppm Sb) for eco-sensitive industrial programs. |
Applications
| Server VRM Output Rectification | Automotive DC-DC Converter |
|---|---|
Use Scenario: 48V-to-12V bidirectional buck-boost converter in EV power distribution units. IC Role / Device Role / Timing Role: Dual-leg common-cathode Schottky rectifier handling 10A per rail with shared thermal path to chassis. Use Value: 0.71V VF enables >95% efficiency at 10A load while maintaining <125°C junction temp with minimal heatsinking. | Use Scenario: 12V auxiliary power supply in ADAS camera modules requiring low EMI and AEC-Q101 readiness. IC Role / Device Role / Timing Role: Output rectifier in 300kHz flyback converter; soft switching suppresses radiated emissions near image sensor. Use Value: Stable 80µA IR at 25°C and 20µA at 125°C prevents standby current drift across vehicle lifetime. |
| Laptop Adapter Secondary Side | Industrial PoE++ PSE Controller |
Use Scenario: Dual-output (5V/20A + 20V/5A) AC-DC adapter with shared ground reference. IC Role / Device Role / Timing Role: Common-cathode dual Schottky providing independent anode inputs for two regulated outputs. Use Value: Pin 1 and Pin 3 isolation enables separate transformer secondaries while minimizing board space vs. discrete diodes. | Use Scenario: 90W Power over Ethernet (PoE++) midspan injector with active rectification on DC feed lines. IC Role / Device Role / Timing Role: High-current freewheel diode in synchronous rectifier stage managing 57V DC feed with transient surges. Use Value: 150A IFSM rating absorbs IEEE 802.3bt Class 8 surge events without degradation or thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual common-cathode Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-20CTH02-M3/45 | Same 100V VRRM, 10A/leg, but VF = 0.75V @ 10A/25°C; RθJC = 2.5°C/W; TO220AC package (non-isolated tab). | Non-isolated tab requires insulating washer for heatsink mounting; higher VF increases conduction loss by ~56mW per leg. | Select when cost sensitivity outweighs thermal performance and isolation requirements. |
| ON Semiconductor MBR20100CT | Identical pinout and ratings (100V, 10A/leg), but VF = 0.78V @ 10A/25°C; IR = 100µA @ 100V/25°C; RoHS-compliant but not "Green" certified. | Slightly higher leakage limits use in high-temp industrial systems where long-term reliability is prioritized over eco-certification. | Choose when legacy design compatibility and broad distributor availability are primary concerns. |
Compared with VS-20CTH02-M3/45 and MBR20100CT, SDT20100CT offers the lowest VF (0.71V), tightest IR spec (80µA), and certified "Green" material compliance-making it optimal for thermally constrained, automotive-qualified, and sustainability-driven power designs.
Availability
SDT20100CT is available at Aetrix Electronics and suitable for DC-DC converters, AC-DC adapters, and automotive power supplies requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for SDT20100CT 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 the Americas.
The SDT20100CT belongs to Diodes' Trench Schottky Rectifier product line, engineered specifically for high-efficiency, high-temperature power conversion in computing, automotive, and industrial applications where low VF and stable IR are critical.
FAQ
What is the thermal resistance (RθJC) of SDT20100CT in TO220AB package?
The SDT20100CT in TO220AB package has a typical junction-to-case thermal resistance of 2°C/W, measured with a 50mm × 50mm × 23mm aluminum heatsink. This value enables accurate thermal modeling for 10A-per-leg operation without exceeding 150°C junction temperature under defined cooling conditions.
Is SDT20100CT qualified for automotive applications?
SDT20100CT is manufactured in IATF 16949 certified facilities and supports PPAP documentation. While not pre-qualified to AEC-Q101 out-of-box, Diodes offers automotive-grade variants (e.g., SDT20100CTFP in ITO220AB) with full AEC-Q101 qualification upon request and change control.
How does the common-cathode configuration affect PCB layout?
The common-cathode (Pin 2) configuration simplifies output filtering by allowing a single low-inductance cathode trace to both output capacitors. However, it requires careful thermal via placement under the tab to avoid current crowding, as all 20A flows through one shared metal path to the heatsink.
What is the maximum operating frequency for SDT20100CT in switching applications?
SDT20100CT supports operation up to 1MHz due to its trench Schottky architecture and soft switching behavior. Performance remains stable beyond 500kHz, with no reverse recovery charge (Qrr) specified-enabling efficient use in advanced GaN-based 650kHz–1MHz DC-DC converters without snubber networks.
SDT20100CT 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):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 700 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 80 µA @ 100 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
SDT20100CT FAQ
1.How can I place an order for SDT20100CT through Aetrix?
Please submit a Request for Quotation (RFQ) for SDT20100CT 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 SDT20100CT reliable?
The price and inventory of SDT20100CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDT20100CT is usually 5 days.
3.What payment methods are accepted for SDT20100CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDT20100CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDT20100CT?
SDT20100CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDT20100CT 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 SDT20100CT?
For technical support, including SDT20100CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDT20100CT requirements.
6.How does Aetrix verify that SDT20100CT is sourced from the original manufacturer or authorized distributors?
All SDT20100CT 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 SDT20100CT meets industry standards.
7.What is the process for return or replacement of SDT20100CT?
All SDT20100CT units undergo pre-shipment inspection (PSI). If there is an issue with SDT20100CT, 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 SDT20100CT part is unused and in its original packaging.
Return procedure for SDT20100CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SDT20100CT Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
