Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

Diodes Incorporated SDT20120GCTFP

Name: SDT20120GCTFP
Brand: Diodes Incorporated
SKU: SDT20120GCTFP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: SDT20120GCTFP

Manufacturer:: Diodes Incorporated

Category:: Diode Arrays

Package:: TO-220-3 Full Pack, Isolated Tab

Datasheet:: SDT20120GCTFP.pdf

Description:: DIODE ARR SCHOTTKY 120V ITO220AB

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,227

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

SDT20120GCTFP from Diodes Incorporated is a 20A dual-leg Trench Schottky rectifier in ITO220AB (Type WX) package, rated at 120V V_RRM, 0.83V max forward voltage at 10A/25°C, and 30µA max reverse leakage at 120V/25°C. It serves as a high-efficiency freewheel or output rectifier in automotive-grade DC-DC converters and AC-DC adapters operating up to +150°C junction temperature.

For engineers reviewing the SDT20120GCTFP datasheet, SDT20120GCTFP pinout, SDT20120GCTFP application, or SDT20120GCTFP equivalent, key selection criteria include its low VF stability across temperature, soft-switching behavior for EMI reduction, thermal resistance of 4°C/W (junction-to-case), and AEC-Q101 readiness via IATF 16949 manufacturing.

Technical Context

This dual-common-cathode Schottky rectifier integrates two independent 10A legs sharing one cathode terminal, enabling synchronous rectification or dual-output configurations. Its trench MOS structure delivers lower forward voltage than planar Schottkys while maintaining tight IR control up to +125°C.

Designed for high-frequency switching power supplies, it exhibits soft reverse recovery with minimal stored charge (Q_rr not specified but implied by "soft, fast switching" claim), and junction capacitance of ~1000pF at 0V reverse bias (per Figure 4). Thermal derating follows linear IO vs. TC curves-10A at 25°C case drops to ~5A at 100°C case (Figure 5).

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	120V - Maximum repetitive reverse blocking voltage per leg; supports 48V–60V bus systems with margin.
I_O (per leg)	10A - Continuous average forward current per diode leg at 25°C case; total device rating is 20A.
V_F max	0.83V @ 10A, 25°C - Low conduction loss enables >95% efficiency in 12V–24V output DC-DC stages.
I_R max	30µA @ 120V, 25°C - Ultra-low leakage preserves standby power in always-on automotive modules.
R_θJC	4°C/W - Junction-to-case thermal resistance for ITO220AB package; requires heatsink for >5A continuous operation.
T_J range	−55°C to +150°C - Full automotive temperature capability without derating penalty below +125°C.
Package	ITO220AB (Type WX) - Isolated tab variant with 1.65g mass, matte tin terminals, UL 94V-0 molding.

Pinout & Package

ITO220AB (Type WX) is an isolated-tab variant of TO220 with three leads: Pin 1 (Anode 1), Pin 2 (Cathode, common to both legs), Pin 3 (Anode 2). The metal tab is electrically isolated from all terminals and serves solely as a thermal path.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Anode of Leg 1	Connects to input/high-side node of first rectification path; must be routed with low-inductance trace.
Pin 2	Common Cathode	Shared output node for both legs; ties to ground or return rail; critical for thermal and EMI layout.
Pin 3	Anode of Leg 2	Connects to second input path (e.g., interleaved phase); enables dual-output or redundancy schemes.

Key Features

Feature	Design Value
Low forward voltage drop	0.83V max at 10A/25°C reduces conduction loss by ≥15% vs. standard Schottkys in 12V buck outputs.
High-temperature leakage stability	IR = 17µA @ 120V/125°C ensures <1mW standby dissipation in automotive infotainment power rails.
Soft, fast switching	No hard reverse recovery edge minimizes EMI generation during turn-off in 300–500kHz SMPS designs.
AEC-Q101 readiness	Manufactured in IATF 16949-certified facilities with PPAP support-enables direct use in qualified automotive modules.

Applications

Automotive DC-DC Converters

Server PSU Secondary Rectification

Use Scenario: 48V–12V bidirectional buck-boost converter in ADAS domain controllers.

IC Role / Device Role / Timing Role: Output synchronous rectifier replacing MOSFETs in high-current, space-constrained modules.

Use Value: Eliminates gate drive complexity and body diode conduction loss while maintaining <0.9V dropout at 15A peak.

Use Scenario: +5V/20A secondary-side rectification in redundant 1U server PSUs.

IC Role / Device Role / Timing Role: Dual-leg freewheel diode handling interleaved phase currents with shared cathode return.

Use Value: Enables compact layout with single heatsink mounting and eliminates cross-conduction risk in multi-phase designs.

Industrial AC-DC Adapters

Telecom Power Modules

Use Scenario: 24V/10A universal-input adapter for factory automation I/O modules.

IC Role / Device Role / Timing Role: Primary output rectifier in quasi-resonant flyback topology operating at 65–100kHz.

Use Value: Delivers stable 0.76V VF at 125°C ambient-reducing thermal design margin by 10°C vs. legacy Schottkys.

Use Scenario: −48V telecom rectifier module with hot-swap and OR-ing functionality.

IC Role / Device Role / Timing Role: Blocking diode in redundant feed paths with fast reverse recovery to prevent backfeed.

Use Value: Soft recovery limits dv/dt-induced gate ringing on upstream MOSFETs during load dump events.

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-20CPH12-M3	Same 120V/20A rating, but TO247AC package (R_θJC = 1.6°C/W); VF = 0.82V @ 10A/25°C.	Higher thermal performance but larger footprint; requires different heatsink interface.	Select when junction temperature must stay <110°C under 15A continuous load without forced air.
ON Semiconductor MBR20120CT	TO220AB package (non-isolated tab); VF = 0.87V @ 10A/25°C; IR = 50µA @ 120V/25°C.	Lower cost but higher leakage and no isolation-unsuitable for floating-ground or safety-isolated designs.	Acceptable for non-automotive industrial adapters where tab grounding is permitted and leakage <50µA is tolerable.

Compared with VS-20CPH12-M3 and MBR20120CT, SDT20120GCTFP offers optimal balance of isolation, thermal resistance (4°C/W), and leakage control (30µA) for space-constrained automotive modules requiring AEC-Q101 alignment and IATF 16949 traceability.

Availability

SDT20120GCTFP is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial AC-DC adapters, and telecom power modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant green packaging.

Supply support for SDT20120GCTFP 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 semiconductor company specializing in discrete, analog, and mixed-signal solutions for automotive, industrial, computing, and consumer markets.

SDT20120GCTFP belongs to Diodes' Trench Schottky Rectifier product line, engineered for high-efficiency, high-temperature power conversion in automotive and industrial applications demanding low VF, soft switching, and AEC-Q101 readiness.

FAQ

What is the maximum junction temperature and how does it affect derating?

The SDT20120GCTFP has a rated junction temperature range of −55°C to +150°C. Derating begins at +25°C case temperature: average forward current drops linearly from 10A/leg at 25°C to approximately 5A/leg at 100°C case (per Figure 5). At 150°C case, the device supports only pulsed operation with strict duty-cycle limits.

Is the ITO220AB package electrically isolated, and what is its creepage/clearance performance?

Yes-the ITO220AB (Type WX) package features an electrically isolated metal tab rated for 2500V_RMS isolation between tab and leads (per Diodes' package definition). Creepage and clearance meet UL 94V-0 requirements, supporting reinforced insulation in SELV circuits up to 600V_DC working voltage.

Does SDT20120GCTFP meet AEC-Q101, and what documentation supports this?

SDT20120GCTFP is manufactured in IATF 16949-certified facilities and supports PPAP; however, Diodes explicitly states that AEC-Q101 qualification requires customer-specific change control and testing. No AEC-Q101 test report is published for this part-design-in for automotive applications requires direct engagement with Diodes' automotive team.

How does the soft-switching characteristic reduce EMI in high-frequency converters?

Soft switching arises from the absence of minority-carrier storage and abrupt reverse recovery. This eliminates high-frequency ringing during turn-off, reducing peak dv/dt by >30% compared to fast-recovery diodes-directly lowering conducted EMI in the 30–100MHz band and easing compliance with CISPR 25 Class 5 limits in automotive systems.

SDT20120GCTFP 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):: 120 V

Current - Average Rectified (Io) (per Diode):: 10A

Voltage - Forward (Vf) (Max) @ If:: 830 mV @ 10 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 30 µA @ 120 V

Operating Temperature - Junction:: -55°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: ITO220AB (Type WX)

SDT20120GCTFP FAQ

1.How can I place an order for SDT20120GCTFP through Aetrix?

Please submit a Request for Quotation (RFQ) for SDT20120GCTFP 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 SDT20120GCTFP reliable?

The price and inventory of SDT20120GCTFP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDT20120GCTFP is usually 5 days.

3.What payment methods are accepted for SDT20120GCTFP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDT20120GCTFP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SDT20120GCTFP?

SDT20120GCTFP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SDT20120GCTFP 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 SDT20120GCTFP?

For technical support, including SDT20120GCTFP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDT20120GCTFP requirements.

6.How does Aetrix verify that SDT20120GCTFP is sourced from the original manufacturer or authorized distributors?

All SDT20120GCTFP 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 SDT20120GCTFP meets industry standards.

7.What is the process for return or replacement of SDT20120GCTFP?

All SDT20120GCTFP units undergo pre-shipment inspection (PSI). If there is an issue with SDT20120GCTFP, 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 SDT20120GCTFP part is unused and in its original packaging.

Return procedure for SDT20120GCTFP:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

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…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

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…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

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…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

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.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

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.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

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…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

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…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

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…