Investor Relations Diodes Incorporated (DIOD) Plano, TX, USA February 6, 2024 Exhibit 99.3

Safe Harbor Statement Safe Harbor Statement Under the Private Securities Litigation Reform Act of 1995: Any statements set forth above that are not historical facts are forward-looking statements that involve risks and uncertainties that could cause actual results to differ materially from those in the forward-looking statements. Such statements include statements containing forward-looking words such as “expect,” “anticipate,” “aim,” “estimate,” and variations thereof, including without limitation statements, whether direct or implied, regarding expectations of that for the first quarter of 2024, we expect revenue to be approximately $305 million plus or minus 3 percent; we expect GAAP gross margin to be 34.0 percent, plus or minus 1 percent; non-GAAP operating expenses, which are GAAP operating expenses adjusted for amortization of acquisition-related intangible assets, are expected to be approximately 28.7 percent of revenue, plus or minus 1 percent; we expect non-GAAP net interest income to be approximately $2.0 million; we expect our income tax rate to be 18.0 percent, plus or minus 3 percent; shares used to calculate diluted EPS for the first quarter are anticipated to be approximately 46.5 million. Potential risks and uncertainties include, but are not limited to, such factors as: the risk that such expectations may not be met; the risk that the expected benefits of acquisitions may not be realized or that integration of acquired businesses may not continue as rapidly as we anticipate; the risk that the cost, expense,; the risk that we may not be able to maintain our current growth strategy or continue to maintain our current performance, costs, and loadings in our manufacturing facilities; the risk that we may not be able to increase our automotive, industrial, or other revenue and market share; risks of domestic and foreign operations, including excessive operating costs, labor shortages, higher tax rates, and our joint venture prospects; the risks of cyclical downturns in the semiconductor industry and of changes in end-market demand or product mix that may affect gross margin or render inventory obsolete; the risk of unfavorable currency exchange rates; the risk that our future outlook or guidance may be incorrect; the risks of global economic weakness or instability in global financial markets; the risks of trade restrictions, tariffs, or embargoes; the risk that the coronavirus outbreak or other similar epidemics may harm our domestic or international business operations to a greater extent than we currently anticipate; the risk of breaches of our information technology systems; and other information, including the “Risk Factors” detailed from time to time in Diodes’ filings with the United States Securities and Exchange Commission. This presentation also contains non-GAAP measures. See the Company’s press release on February 6, 2024 titled, “Diodes Incorporated Reports Fourth Quarter and Fiscal 2023 Financial Results” for detailed information related to the Company’s non-GAAP measures and a reconciliation of GAAP net income to non-GAAP net income.

Management Representative Dr. Keh-Shew Lu Chairman and CEO Experience: President & CEO, Diodes Incorporated Since 2005 Texas Instruments 27 years Senior Vice President of TI Worldwide Analog and Logic President of Texas Instruments – Asia Education: Honorary Doctorate in Engineering National Cheng Kung University Doctorate and Master's Degree in Electrical Engineering Texas Tech University Bachelor's Degree in EngineeringNational Cheng Kung University – Taiwan

Management Representative Gary Yu President Experience: Diodes Incorporated, since 2008 Chief Operating Officer Senior Vice President, Business Groups President, Asia Pacific Region General Manager, Shanghai Wafer Fabrication and BCD Business Unit Vice President of Asia Pacific Sales Manager, Sensor and Satellite Business Unit Lite-On Semiconductor Corporation Vice President, Worldwide Sales Texas Instruments IT, Finance and Capacity Planning Education: MBA - University of Dallas Master’s Degree in Telecommunication Engineering Southern Methodist University Bachelor's Degree in MISFu-Jen University, Taiwan

Company Representative Experience: Head of Corporate Marketing, Diodes Incorporated Head of Corporate Marketing, Pericom Semiconductor Vice President, Marketing, CA Technologies (Broadcom) Director, Global Marketing Strategy, EMC Director, Marketing, Zarlink Semiconductor (Microchip) Marketing Management positions at Cisco and National Semiconductor (TI) Education: MBA, Marketing/Entrepreneurship, Saint Mary's College of California BS in Electrical and Computer Engineering, UC Santa Barbara Gurmeet Dhaliwal Company spokespersonHead of Corporate Marketing & Investor Relations

About Diodes Incorporated Vision: Profitability Growth to Maximize Shareholder Value Our Core Values: Integrity, Commitment, Innovation Diodes delivers high-quality (analog, discrete, logic and mixed signal) semiconductor products to the world’s leading companies in the automotive, industrial, computing, consumer electronics, and communications markets DIOD Stock Symbol 65 Years inbusiness 32 Consecutive yearsof profitability 32 Number of locationsworldwide ~8600 Number ofemployees 1.7Bn Annual Revenue 2023 >42Bn Number of unitsshipped in 2023 >28K Number ofproducts (SKU) shipped in 2023 >50 Number ofdistributors >50K Number ofcustomers 46% of 2023 product revenue from Automotive/Industrial

Investing for the Future 2006 2006 2012 2015 2008 2013 2019 2020 2022 Anachip Corporation Taiwan Advanced Power Devices ZetexSemiconductors Power Analog Microelectronics BCDSemiconductor Pericom Semiconductor TI’s Greenock fab (GFAB) Lite-OnSemiconductor Onsemi‘s fab (SPFAB) Global Operations and World-class Manufacturing Headquartered in Plano, TX Manufacturing in US, UK, Germany, China, and Taiwan ISO 9001:2015 Certified / IATF 16949:2016 Certified ISO 14001:2015 Certified Key Acquisitions

Global Organization Wuxi, China Shanghai,China Jhongli,Taiwan Hsinchu,Taiwan Taipei,Taiwan Munich,Germany Neuhaus,Germany Plano, Texas Milpitas,California Greenock, UK Chengdu,China LogisticsHub andWarehouses Oldham,UK Key: Headquarters Wafer Fab Assembly/Test Design/Sales/Marketing South, Portland,Maine Keelung,Taiwan

Our Sustainability Commitment Our commitment to a sustainable and profitable business is built around ESG Please refer to Governance and Oversight for additional details  Social (S) Governance (G) Environment (E) Climate Change Natural Resources Pollution & Waste Biodiversity Strategy & Oversight Risks Management Business Continuity Accountability & Transparency Supply Chain Product Integrity Human Capital Community

Longer Term $B Corporate Objectives Goal 1: $1B Market Cap Goal 2: $1B Annual Revenue Goal 3: $1B Gross Profit Goal 4: $1B Profit Before Tax $1B Market Cap $1B Revenue $1B Gross Profit $1B PBT - 2010 - 2017 2025 Target:$1B Gross profit Gross Margin: 40%Revenue: $2.5B by 2025

Profitability Growth Track record of Continued Outperformance Annual Revenue Gross Profit ($ in millions) ($ in millions) CAGR: 12% (2005 – 2023) CAGR: 13% (2005 - 2023)

Gross Margins and EPS Gross Margins (%) Non-GAAP EPS ($) CAGR: 22% (2012 - 2023)

Targeted Market Segment Goal Automotive Connected driving, comfort/style/safety, electrification/powertrain Industrial Embedded systems and precision controls, and AIoT Consumer IoT: wearables, home automation, smart infrastructure Communications Smart phones, 5G networks, advanced protocols, and charging solutions Computing Cloud computing: server, AI server, storage, data centers ~60% of revenue ~40% of revenue (54% for FY2023) (46% for FY2023)

Key Growth Areas Automotive and Industrial are Driving Growth Automotive – 28% CAGR (2013 – 2023) Focused on connected driving, comfort, style, safety, and electrification Released 362 new automotive-compliant products in 2023 Increased dollar content per car to $161 Industrial – 11% CAGR (2013 – 2023) Focused on embedded systems, networked systems, automation, motor controls, sensors, power management, and IIoT Building momentum for SiC Schottky diodes and MOSFETs Expanding content in security, medical, green energy generation and energy storage systems

Total Solutions Provider Example: Embedded System Applications

Automotive Applications Driving Growth Connected Driving ADAS (Advanced Driver Assistance Systems) Telematics Infotainment Systems Comfort, Style, and Safety Lighting Migration to LED and intelligent illumination BLDC motor / fan control Migration from Brushed to Brushless DC Motors Electrification/Powertrain Conventional Powertrain  Hybrid  Electrification Battery management Move to 48V battery Focus Applications: Automotive Revenue Growth Year 2013 – 2023 CAGR: 28% Year

Automotive Opportunity Automotive Potential Revenue $ / Car Automotive Motor Control $50.70 Connected Driving (Infotainment, Telematics & ADAS) $71.30 Powertrain, Electrification & Body Control Electronics $22.60 Lighting – Moving to LED $16.50 Total $161.20 Normalized to 2013 $ Content/Car Year

Automotive Surround-View SuperCAM Platform Advanced Clock Gen, Clock Buffer, Crystal Oscillator, USB Power Switch, and Protection solutions for mission-critical need Automotive Compliant* Products Diodes’ Key Products $ / Box Analog >$1.20 Power Management >$0.70 MOS/BJT >$3.50 Diodes and Rectifiers >$5.00 Timing and Connectivity $14.00 Total $24.40 * AEC qualified, manufactured in IATF 16949 certified sites supporting PPAP documentation (if applicable)

Automotive Compliant USB Charging USB charging is a high growth application with approximately 2 to 8 ports per vehicle USB PD is an important expansion capability  up to 100W/port USB-C supports DP over USB and opens up the opportunity to share portable equipment’s screen on interior display Diodes provides a system solution for USB charging including Port Controller, USB Muxes, Signal Switches, ReDrivers, Xtals, Power Management, and Protection. Automotive Compliant* product portfolio expansion is expanding the SAM further * AEC qualified, manufactured in IATF 16949 certified sites supporting PPAP documentation (if applicable) Diodes’ Key Products $ / per car Power Management $6.20 MOS/BJT $1.30 Diodes and Rectifiers $0.60 Timing and Connectivity $3.20 Total $11.30

Industrial Content Expansion Increasing IC content in embedded systems Switching and signal path for networked systems and automation Signal conditioning and timing for precision controls Industrial / motor controls, sensors, and power management for smart meters Green power, Energy storage 2013 - 2023 CAGR: 11% Industrial Revenue Growth Net Sales Year

IoT – Machine to Machine (M2M) Growth Opportunities: Power, Sensor, DC-DC Gate Driver, BJT, MOSFET XTAL and clock Packet switch, ReDriver, IO Expander, MIPI, and USB charging M2M – Dominated by short range technology 73% are short range, mostly Wi-Fi 2030: connections @ 29,400 million M2M – By Application IoT and M2M Modems POS, Routers, Edge Server On-Premise Edge Gateway AGV (Automated Guided Vehicle) AMR (Autonomous Mobile Robots) UAV (Unmanned Aerial Vehicle) POS Display PortSwitch I2C Level Shifterw/Buffer USBSwitch USB PowerSwitch USB 3.0ReDriver USB 3.0Switch PCI Switch/ReDriver SATA Switch/ReDriver VoltageDetector Xtal USB Port USB 3.0Controller HighBandwidthMux ReDriver AC-DC Adapter GPIO Expander TemperatureSensor DVI Scaler Mobile DDR/NOR Flash NAND Flash USB 3.0 PCIe/SATA DP I2C Bus UART USB 2.0 CPU STDLIN DC-DC / LDO AC-DC Diodes’ Key Products $ / AGV Discrete $3.50 Analog & Power Mgmt. $2.20 Timing and Connectivity $18.00 Total $23.70 PMU DDR WiFiModule Gate Driver and MOS LiDAR /Gyro Sensor PCIe Packet Switch CameraSensor CANTransceiver Embedded Processor SSD M Isolated DCDC 48V Battery LDO, DCDC, Hall sensor, Audio Amp IO Expander AGV

Cloud Computing Accelerating Enterprise Market ReDriver support for PCIe or USB connectivity Wide range of signal protocols: PCIe, CXL, SAS, SATA, USB MUX switch products for high capacity solid state storage Packet switches for accelerating AI computing Crystal oscillators for increasing clocking speeds LDOs, DCDC, SBR, and TVS for power management and protection

Server Platform Solution Almost all of Server vendors are Diodes’ existing customers Diodes’ products are well positioned in this segment PCIe, USB, & SATA ReDrivers, Clock Buffer, Oscillator, I3C MUX, Level shifter, IO Expander, Bus Switch, QSPI MUX, Logic IC, MOSFET, LDO, TVS, DC-DC Diodes’ Key Products $ / Box Analog $6.90 Power Management $2.20 MOS/BJT $0.70 Timing and Connectivity $43.20 Total $53.00 Data Center – Blade Server

Consumer: IoT Driving Power & Connectivity Requirements Diodes’ Key Products $ / Box Analog >$0.20 Power Management >$1.30 MOS/BJT >$10.00 Diodes and Rectifiers >$5.00 Timing and Connectivity $3.50 Total $20.00 Enterprise Smart Infrastructure Wearables Consumer & Home Asset Tracking Security & Surveillance Retail

Sensor IoT Segment: Smart Home Smart Home Safety and Security Climate Control Consumer Electronics Lighting control Host Controller X1 PCIe2 100MHz HCSL Clk SSD X1 PCIe2 (or SATA controller) 25MHz Xtal PCIe CG PI6C557-05 PCIe Packet SW PI7C9X2G304SL Wireless Controller Wireless Controller Smart Home Gateway Smart Lighting MHz Xtal kHz Xtal AC Power LED Driver AC-DC Light User Interface Smart Speaker MHz Xtal SoC Growth Opportunities Power LED driver Xtal and clock Packet switch SoC MHzXtal MOSFET TVS NAND SDRAM Wi-Fi LED Drive Audio Amp Digital Assistant Diodes’ Key Products $ / Box Analog $0.55 ~ $0.80 Power Management $1.80 MOS/BJT $1.10 Diodes and Rectifiers $0.50 Timing and Connectivity $3.50 Total $7.70 AC-DC Audio Amp Wi-Fi Memory Ethernetport AC Power SoC DC-DC / LDO DC-DC / LDO Op Amp

Communications - 5G Applications Focus Applications: Cloud Computing AI / Data Center Server Gateway Internet Gateway Fiber network Core Network, Cell Stations Small Cells Base Station Edge Computing Server Smart antenna Fiber network End Products Portables: Smartphone, Tablet Smart Car Consumer: VR/AR, Drone, IoT Telecom: 5G CPEs Embedded/Industrial

Communication – 5G Distributed Unit Advanced Solution in Signal Integrity, Signal/Bus/Power Switches and IO Expanders for diversified networking applications Global Logistics provide cost-competitive solution with industry standard pin-outs and flexible package options Diodes' Key Products $ / Box Analog $12.00 Power Management & Discrete $3.00 Timing and Connectivity $23.00 Total $38.00

Complete Platform Solution DCDCConverter CPU PCH MOSFET LED Driver USB 2.0Switch A/V Codec DDRRegulator LDO Analog Switch TVS USB 3.0ReDriver CrossbarSwitch Vcore DCDC Controller Sleep / Charge Detect VideoSwitch MCU USB3 /DP Switch LSP Con LCDPanel TVS DP-to-VGAConverter VideoSwitch TVS HDMIReDriver SATA / PCIeReDriver HDD / SSD USB2 / 3Switch USBPower Switch TVS Docking Sub-system DDR4 DIMM 3DCamera LDO USB3ReDriver UART D+, D- Memory Bus DP0..3 Tx, Rx I2C D+, D- D+, D- AUXHPD+AUXHPD- SATA / PCIe DDI USB3.0 eDP1.3 DP1.2b HDMI 1.4 TVS LANSwitch MOSFET AudioAmplifier Sensor DCDC LDO Logic Sensor TVS USB Switch LED Driver Timing Signal Integrity Switching Connectivity Audio SBR ACDC Std Linear High-Speed Serial Connectivity SBR Diode Diode DP/LAN Mux Clock Buffer ACDC External Adapter / Charger MOSFET / SBR TVS, LDO,Thyristor Bridge Rectifier TVS Thyristor Bridge Rectifier Example: Notebook

Technology Focus Products eUSB/USB repeater and Ultra Low Cj TVS for signal integrity Automotive Packet Switch for Telematics / ADAS, high voltage LDO and DCDC products Complete USB-C / Power Delivery Solutions Low jitter timing solution for cloud computing High precision high bandwidth standard analog Ultra low power and low noise LDOs for IoT Lowest RDS(ON) LDMOS for battery efficiency IntelliFET - self-protected power switches Comprehensive MOSFETs (8V to 800V) SiC Schottky Diodes and SiC MOSFET for industrial and automotive applications Cu Pillar with flip chip on lead frame High pin count BGA, LGA, and AQFN packages Chip scale packaging with highest current density Compact QFN and DFN Power density PowerDI High performance 8” MOSFET trench technology Advanced Epi bipolar transistor processes Proprietary rectifier technology Rugged automotive grade NMOS and PMOS Low power low noise SiGe BiCMOS process High voltage high power BCD process Assembly/Test Wafer Fab

Assembly and Test Efficient Manufacturing + Superior Processes China: Shanghai, Chengdu, and Wuxi Taiwan: Jhongli Germany: Neuhaus US: South Portland, Maine China: Shanghai and Wuxi Taiwan: Hsinchu and Keelung UK: Greenock and Oldham Bipolar, BiCMOS, CMOS and BCD process Global footprint with strong engineering capabilities Wafer Fabs

Revenue Profile for FY2023 By End Market Computing Consumer Industrial Communications Automotive By Channel Distribution Direct By Region Asia Pacific Europe Americas

Income Statement – Fourth Quarter 2023 ($ in millions, except EPS) 4Q22 3Q23 4Q23 Net sales 496.2 404.6 322.7 Gross profit (GAAP) 206.2 155.9 112.5 Gross profit margin % (GAAP) 41.6% 38.5% 34.9% Net income (GAAP) 92.1 48.7 25.3 Net income (non-GAAP) 79.6 52.5 23.4 Diluted EPS (non-GAAP) 1.73 1.13 0.51 Cash flow from operations 102.9 50.1 38.4 EBITDA (non-GAAP) 129.6 90.6 58.4

Balance Sheet ($ in millions) Dec 31, 2021 Dec 31, 2022 Dec 31, 2023 Cash* 373 348 329 Inventory 349 360 390 Current Assets 1,188 1,162 1,187 Total Assets 2,194 2,288 2,368 Total Debt 301 185 62 Total Liabilities 892 705 558 Total Equity 1,303 1,583 1,810 * Cash and cash equivalents, restricted cash and short-term investments

Revenue to be ~$305 million, +/- 3.0% GAAP gross margin of 34.0%, +/- 1% Non-GAAP operating expenses 28.7% of revenue, +/- 1%, which are GAAP operating expenses adjusted for amortization of acquisition-related intangible assets Net Interest income of ~$2.0 million Income tax rate to be 18%, +/- 3% Shares used to calculate diluted EPS approximately 46.5 million Amortization of $3.1 million, after tax, for previous acquisitions is not included in these non-GAAP estimates *Guidance as provided on February 6, 2024 First Quarter 2024 Business Outlook

Investment Summary Vision: Expand shareholder value Mission: Profitability growth to drive 20%+ operating profit Next Strategic Goal: $1B gross profit Tactics: Total system solutions sales approach and content expansion driving growth Focus on key accounts Increased focus on high-margin automotive, industrial, analog, and power discrete products Investment for technology leadership in target products, fab processes, and advanced packaging Accelerate fab process and product qualifications