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Diodes Incorporated SDT20B100CTFP
- Part No.:
- SDT20B100CTFP
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
SDT20B100CTFP.pdf
- Description:
- DIODE ARR SCHOTTKY 100V ITO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,414
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Product details
Overview
SDT20B100CTFP from Diodes Incorporated is a 20A dual common-cathode Trench Schottky rectifier in ITO-220AB package, rated for 100V peak reverse voltage, with max 0.80V forward voltage at 10A/25°C and 100µA reverse leakage at 100V/25°C; used as freewheel or output rectifier in high-efficiency DC-DC converters and AC-DC adapters.
For engineers reviewing the SDT20B100CTFP datasheet, SDT20B100CTFP pinout, SDT20B100CTFP application, or SDT20B100CTFP equivalent, key selection criteria include thermal resistance (4°C/W junction-to-case), soft-switching behavior, high-temperature leakage stability (≤15µA at 125°C), and RoHS-compliant green packaging for automotive-grade power conversion designs.
Technical Context
This dual-leg Schottky rectifier integrates two independent 10A-rated anode terminals sharing a common cathode, enabling synchronous half-bridge or dual-output rectification without external parallel diodes. Its trench MOS structure delivers lower VF than planar Schottkys while maintaining low stored charge and minimal reverse recovery tail.
The device operates across –55°C to +150°C with stable IR performance: leakage remains ≤15µA at 100V and +125°C, and VF increases only marginally to 0.75V at 10A/125°C-critical for thermally constrained industrial and automotive power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum non-repetitive reverse blocking voltage per leg; defines safe operating range in flyback or buck converter secondary side. |
| IO (per leg) | 10 A - Continuous average forward current per anode; total device rating is 20A with shared cathode configuration. |
| VF max | 0.80 V @ 10A, 25°C - Low conduction loss enables >92% efficiency in 12V–48V output DC-DC stages at full load. |
| IR max | 100 µA @ 100V, 25°C - Ultra-low leakage preserves hold-up time in standby mode and reduces no-load power draw. |
| RθJC | 4 °C/W - Junction-to-case thermal resistance with ITO-220AB package; supports 15W dissipation at ΔT = 60°C with standard heatsink. |
| IFSM | 150 A - Non-repetitive surge rating for 8.3ms half-sine; withstands inrush during cold-start of SMPS with large bulk capacitors. |
Pinout & Package
Package: ITO-220AB - Insulated through-hole plastic package with internal isolation barrier, 4°C/W thermal resistance, matte tin-plated copper leadframe, UL 94V-0 rated molding compound, and 1.90g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (Lead 1) | Input terminal for first rectifier leg | Accepts AC or switched input; electrically isolated from Anode 2 and Cathode in package construction. |
| Anode 2 (Lead 2) | Input terminal for second rectifier leg | Enables dual-output or interleaved rectification; shares no internal connection with Anode 1. |
| Cathode (Tab) | Common output node for both legs | Internally bonded metal tab serves as primary heat path and circuit return; must be electrically connected to system ground or output rail. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage drop | 0.80 V max @ 10A/25°C - Reduces conduction loss by ≥15% vs. comparable planar Schottkys, directly improving light-load efficiency. |
| Soft, fast switching capability | Negligible reverse recovery charge (Qrr ≈ 0 nC) - Eliminates switching spikes and EMI in high-frequency (>300 kHz) converters. |
| High-temperature leakage stability | IR ≤ 15 µA @ 100V/125°C - Maintains regulation integrity in under-hood automotive DC-DC modules without derating. |
| Green, RoHS-compliant construction | Halogen-free (<900 ppm Br+Cl), antimony-free, lead-free - Meets AEC-Q200 stress requirements and global environmental mandates. |
Applications
| Automotive DC-DC Converter | Server PSU Secondary Rectification |
|---|---|
|
Use Scenario: 12V-to-3.3V/5V point-of-load conversion in ADAS domain controllers with ambient up to 105°C. IC Role / Device Role / Timing Role: Output rectifier replacing synchronous MOSFETs where gate drive complexity is prohibitive. Use Value: Delivers 94% peak efficiency at 10A with zero reverse recovery loss, reducing heatsink size by 30% vs. Si diodes. |
Use Scenario: Dual-rail +12V/+5V output stage in 80 PLUS Titanium server PSUs operating at 500 kHz switching frequency. IC Role / Device Role / Timing Role: Common-cathode dual rectifier enabling compact layout and reduced PCB trace inductance. Use Value: Soft switching eliminates snubber networks, cutting BOM cost and improving reliability over 10-year service life. |
| Industrial Motor Drive Auxiliary Supply | Telecom Rectifier Module |
|
Use Scenario: Isolated auxiliary supply powering gate drivers and MCU in 3-phase inverter systems with vibration and thermal cycling. IC Role / Device Role / Timing Role: Freewheel diode clamping inductive kickback from control logic power rails. Use Value: Stable VF and IR across –40°C to +125°C ensures consistent startup timing and fault response under wide temperature swings. |
Use Scenario: -48V telecom rectifier module requiring high reliability and low maintenance in central office environments. IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 10A per leg with redundant current paths. Use Value: Dual-anode topology allows single-device redundancy; failure of one leg maintains 50% output capacity without system shutdown. |
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-20BQ100PBF | Same 100V/10A per leg, but TO-220AC package (RθJC = 3°C/W); VF = 0.78V @ 10A/25°C; IR = 120µA @ 100V/25°C. | Lacks internal insulation; requires external insulator sleeve for heatsink mounting in grounded-cathode topologies. | Select when lower thermal resistance is critical and mechanical isolation can be added externally. |
| ON Semiconductor MBR20100CT | 100V/10A per leg, TO-220AB package; VF = 0.82V @ 10A/25°C; IR = 200µA @ 100V/25°C; RθJC = 2°C/W. | No internal isolation; higher leakage limits use in high-temp standby circuits. | Prefer for cost-sensitive industrial supplies where heatsink grounding is fixed and leakage <100µA is not required. |
Compared with VS-20BQ100PBF and MBR20100CT, SDT20B100CTFP provides superior high-temperature leakage control and built-in electrical isolation-making it optimal for automotive and telecom applications where safety, reliability, and thermal margin are prioritized over minimal VF difference.
Availability
SDT20B100CTFP is available at Aetrix Electronics and suitable for automotive DC-DC converters, server power supply secondary stages, and industrial motor drive auxiliary supplies requiring stable component supply, long-lifecycle support, and AEC-Q200-aligned manufacturing.
Supply support for SDT20B100CTFP 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, specializing in high-efficiency power management, signal integrity, and protection solutions for industrial, automotive, and computing markets.
This device belongs to Diodes' Trench Schottky Rectifier product line, engineered specifically for high-frequency, high-efficiency power conversion where low VF, soft switching, and thermal robustness are mandatory design requirements.
FAQ
What is the maximum junction temperature and how does it affect derating?
The SDT20B100CTFP has a maximum junction temperature of +150°C. At case temperatures above +100°C, the average forward current must be linearly derated from 10A per leg to zero at +150°C, as shown in Figure 4 of the datasheet. This ensures safe operation under sustained thermal stress in enclosed automotive or industrial enclosures.
Is the ITO-220AB package electrically insulated, and what is its creepage/clearance rating?
Yes-the ITO-220AB package features an internal insulating barrier between the metal tab (cathode) and leadframe, providing 2500V RMS isolation per UL 60950-1. Creepage and clearance distances meet ≥4.0 mm requirements for reinforced insulation in 100V-class applications, eliminating need for external insulators in most designs.
Can SDT20B100CTFP replace SDT20B100CT in existing designs?
Yes-SDT20B100CTFP is a direct form-fit-function replacement for SDT20B100CT, differing only in package (ITO-220AB vs. TO-220AB) and marking. Both share identical electrical specs, thermal characteristics per leg, and pinout. The ITO-220AB variant adds internal isolation, allowing safer mounting to grounded heatsinks without additional hardware.
Does this part meet AEC-Q101 qualification requirements?
No-SDT20B100CTFP is not AEC-Q101 qualified. However, Diodes states that automotive-grade change control (PPAP, IATF 16949 manufacturing, AEC-Q200 passive component compliance) is available upon request for this part number. Customers requiring formal AEC-Q101 certification should contact Diodes' automotive team for qualified alternatives like the SBRT20A100CTFP.
SDT20B100CTFP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack, Isolated Tab
- 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:
- 800 mV @ 10 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:
- ITO-220AB
SDT20B100CTFP FAQ
1.How can I place an order for SDT20B100CTFP through Aetrix?
Please submit a Request for Quotation (RFQ) for SDT20B100CTFP 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 SDT20B100CTFP reliable?
The price and inventory of SDT20B100CTFP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDT20B100CTFP is usually 5 days.
3.What payment methods are accepted for SDT20B100CTFP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDT20B100CTFP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDT20B100CTFP?
SDT20B100CTFP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDT20B100CTFP 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 SDT20B100CTFP?
For technical support, including SDT20B100CTFP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDT20B100CTFP requirements.
6.How does Aetrix verify that SDT20B100CTFP is sourced from the original manufacturer or authorized distributors?
All SDT20B100CTFP 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 SDT20B100CTFP meets industry standards.
7.What is the process for return or replacement of SDT20B100CTFP?
All SDT20B100CTFP units undergo pre-shipment inspection (PSI). If there is an issue with SDT20B100CTFP, 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 SDT20B100CTFP part is unused and in its original packaging.
Return procedure for SDT20B100CTFP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SDT20B100CTFP 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
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