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MAXIM INTEGRATED / ANALOG DEVICES MAX40203AUKT Ideal Diode

The MAX40203 is a nanoscale ideal diode with ultra-low forward voltage drop of approximately 230mV at 1A, providing efficient power switching for portable electronics. It operates from 1.2V to 5.5V, features thermal self-protection, and is available in a compact 0.77mm x 0.77mm wafer-level package and a 5-pin SOT-23 package, ensuring minimal footprint in space-constrained applications. Designed for battery backup, USB peripherals, and mobile devices, it offers low leakage, high efficiency, and robust reverse-voltage blocking up to 6V, with operation across -40°C to +125°C temperature range.

Authorized Distributors
Source:Newark
Part No:MAX40203AUK+T
Stock:36365
Inv Date:06-05-2026
Price: Unit price: $1.55
Buy/RFQ:
Source:DigiKey
Part No:MAX40203AUK+T
Stock:56152
Inv Date:06-05-2026
Price: Unit price: $2.08
Buy/RFQ:
Part No:MAX40203AUK+T
Stock:78880
Inv Date:06-06-2026
Price: Unit price: $1.5
Buy/RFQ:

MAXIM INTEGRATED / ANALOG DEVICES MAX40203AUKT Ideal Diode Specifications:

  • Supply Voltage Range: 1.2V to 5.5V
  • Forward Voltage Drop: approximately 230mV at 1A
  • Maximum Continuous Current: 1A
  • Reverse Voltage Blocking: up to 6V
  • Reverse Leakage Current: 10nA typ at 3.6V, 15-1000nA at higher voltages and temperatures
  • Operating Temperature Range: -40°C to +125°C
  • Package Options: 0.77mm x 0.77mm WLP, 5-pin SOT-23
  • Thermal Shutdown Threshold: approximately 150°C
  • Quiescent Current: approximately 300nA
  • Power Dissipation (WLP): 9.58mW/°C above 70°C, (SOT): 3.90mW/°C above 70°C
  • Lead Soldering Temperature: 300°C (10s), reflow at 260°C
  • Thermal Resistance (WLP): 104.41°C/W junction-to-ambient, (SOT): 255.90°C/W junction-to-ambient
  • Applications include battery management, power-supply switching, portable medical devices, and USB peripherals.

Buy the Buy MAXIM Integrated MAX40203AUKT Ideal Diode Part Number MAX40203AUKT Online

Order the MAXIM Integrated MAX40203AUKT ideal diode online today to enhance your power management systems. This ultra-compact, low-voltage-drop diode offers high efficiency, thermal self-protection, and a wide operating voltage range of 1.2V to 5.5V. Its small form factor in a 0.77mm x 0.77mm wafer-level package and 5-pin SOT-23 ensures minimal space utilization, making it ideal for battery backup, USB peripherals, medical devices, and portable electronics. Experience superior power switching with excellent reverse-voltage block, low leakage current, and robust thermal performance.

Buy MAXIM Integrated MAX40203AUKT now and experience unmatched efficiency with ultra-low voltage drop ideal diode technology for portable and power supply applications.

Frequently Asked Questions

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You can click on the BUY or RFQ button to purchase MAX40203AUKT from an authorized MAXIM INTEGRATED / ANALOG DEVICES distributor.

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You can download the MAX40203AUKT datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.

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