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ONSEMI CAT811LTBIGT3 Power Supply Supervisor

The CAT811 is a compact 4-pin microprocessor power supply supervisor designed for industrial applications. It monitors the supply voltage, providing an active LOW reset signal when voltage drops below preset thresholds such as +5.0 V, +3.3 V, +3.0 V, or +2.5 V. Featuring a manual reset input and guaranteed reset active from 1.0 V Vcc, it offers high transient immunity, low supply current of 6–20 µA, and operation across -40°C to +85°C. Its small SOT-143 package makes it suitable for embedded control, communication systems, and power management modules.

Authorized Distributors
Source:DigiKey
Part No:CAT811LTBI-GT3
Stock:1131
Inv Date:06-10-2026
Price: Unit price: $0.71
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Part No:CAT811LTBI-GT3
Stock:3338
Inv Date:06-11-2026
Price: Unit price: $0.56
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Part No:CAT811LTBI-GT3
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.54
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Part No:CAT811LTBI-GT3
Stock:1000
Inv Date:06-11-2026
Price: N/A
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ONSEMI CAT811LTBIGT3 Power Supply Supervisor Specifications:

  • Supply Voltage Range: 1.0 V to 55 V
  • Reset Threshold Voltage: 4.63 V, 4.38 V, 4.00 V, 3.08 V, 2.93 V, 2.63 V, 2.32 V depending on version
  • Reset Active Duration: minimum 140 ms after voltage rises above threshold
  • Input Current: 20 mA maximum per pin
  • Output Voltage Low (Reset): < 0.4 V at 1.2 mA sink
  • Output Voltage High (Reset): > Vcc - 1.5 V at 0.8 mA source
  • Power Dissipation: 320 mW maximum, derate 4 mW/°C above 70°C
  • Operating Temperature Range: -40°C to +85°C
  • Package: SOT-143, 4-pin
  • Qualification: RoHS, Pb-Free, Halogen and BFR Free, JEDEC compliant
  • Power-up Reset Timeout: approximately 140 ms
  • Transient Immunity: approximately 4 µs to 100 mV transient pulses
  • Manual Reset Input: active LOW, with internal 20 kΩ pull-up resistor
  • Supply Current: 6–20 µA depending on version and load
  • Certifications: RoHS compliant, halogen free

Buy the Buy ON Semiconductor CAT811LTBIGT3 Power Supply Supervisor Part Number CAT811LTBIGT3 Online

Purchase the ON Semiconductor CAT811LTBIGT3 power supply supervisor online today. Designed for industrial temperature range operations, this compact 4-pin device delivers precise voltage monitoring, a manual reset feature, low power consumption, and high transient immunity. Ideal for embedded control, communication modules, and power management systems, it guarantees fast and reliable reset signals with a minimum 140 ms duration. Order now to enhance the stability and reliability of your electronic projects with this essential control component.

Order your ON Semiconductor CAT811LTBIGT3 microprocessor supervisory circuit today and ensure reliable power management in your embedded control systems and industrial applications.

Frequently Asked Questions

Where can I buy ONSEMI CAT811LTBIGT3?

You can click on the BUY or RFQ button to purchase CAT811LTBIGT3 from an authorized ONSEMI distributor.

How do I troubleshoot issues or seek technical support for part CAT811LTBIGT3?

You can download the CAT811LTBIGT3 datasheet or visit the ONSEMI website for support.

Who is the manufacturer of CAT811LTBIGT3?

ONSEMI

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