UC3903Q
- Mfr.Part #
- UC3903Q
- Manufacturer
- Unitrode
- Package / Case
- 20-LCC (J-Lead)
- Datasheet
- Download
- Description
- IC SUPERVISOR 4 CHANNEL 20PLCC
- Stock
- 2,333
- In Stock :
- 2,333
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- Manufacturer :
- Unitrode
- Product Category :
- Supervisors
- Quiescent Current :
- 7mA
- Min Supply Voltage :
- 8V
- Watchdog Timer :
- No
- Lead Free :
- Lead Free
- Operating Temperature :
- 0°C~70°C TA
- JESD-609 Code :
- e3
- Number of Terminations :
- 20
- Number of Pins :
- 20
- Mounting Type :
- Surface Mount
- Length :
- 8.96mm
- ECCN Code :
- EAR99
- Number of Channels :
- 4
- Width :
- 8.96mm
- Terminal Position :
- QUAD
- Surface Mount :
- yes
- Pin Count :
- 20
- RoHS Status :
- ROHS3 Compliant
- Base Part Number :
- UC3903
- Moisture Sensitivity Level (MSL) :
- 2 (1 Year)
- Adjustable Threshold :
- yes
- Height :
- 4.57mm
- Number of Functions :
- 1
- Reset :
- Active Low
- Peak Reflow Temperature (Cel) :
- 260
- Package / Case :
- 20-LCC (J-Lead)
- Operating Supply Current :
- 7mA
- Terminal Pitch :
- 1.27mm
- Max Power Dissipation :
- 1W
- Max Supply Voltage :
- 40V
- Packaging :
- Tube
- Power Dissipation :
- 1W
- Thickness :
- 4.06mm
- Max Supply Current :
- 18mA
- Number of Voltages Monitored :
- 4
- Reset Timeout :
- Adjustable/Selectable
- Terminal Form :
- J BEND
- Supply Voltage :
- 15V
- Output :
- Open Drain or Open Collector
- Type :
- Multi-Voltage Supervisor
- Terminal Finish :
- Matte Tin (Sn)
- Datasheets
- UC3903Q

Supervisors Unitrode UC3903Q Overview
The Supervisors Unitrode UC3903Q is a highly reliable integrated circuit designed to provide supervision functions in electronic systems. Manufactured by Unitrode, a renowned name in the industry, this IC supervisor offers advanced features and robust performance, making it an ideal choice for a wide range of applications.
With its compact 20-pin PLCC package, the UC3903Q ensures easy integration into electronic circuits while delivering exceptional functionality. Whether used in industrial equipment, automotive systems, or consumer electronics, this supervisor IC enhances system reliability and performance.
Engineered with precision and expertise, the Supervisors Unitrode UC3903Q sets the standard for quality and reliability in the field of integrated circuits.
UC3903Q Features
- Four-channel supervision for enhanced system monitoring
- Compact 20-pin PLCC package for easy integration
- Wide operating voltage range for versatile applications
- Reset pulse width control for customizable reset timing
- Low standby current consumption for energy efficiency
- Power-on reset delay adjustment for optimized performance
- High noise immunity for reliable operation in harsh environments
UC3903Q Applications
- Industrial Control Systems: The UC3903Q is used in industrial control systems to monitor multiple channels, ensuring stable operation and timely system resets.
- Automotive Electronics: In automotive applications, the UC3903Q provides supervision for critical functions such as engine control units (ECUs) and safety systems, enhancing vehicle reliability and safety.
- Telecommunication Equipment: Telecommunication equipment utilizes the UC3903Q for power management and system monitoring, maintaining uptime and reliability in communication networks.
- Consumer Electronics: From home appliances to entertainment devices, the UC3903Q enhances the reliability and performance of consumer electronics by providing efficient supervision and reset functions.
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Most of our products are shipped via FEDEX,DHL,UPS and SF EXPRESS...
Shipping CostShipping Cost starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).If customer have shipping account, we can make shipment under customer’s shipping account with freight collect directly.
The basic freight (for package ≤0.5 KG ) depends on the time zones and countries
Once the goods are shipped, estimated delivery time depends on the shipping methods you chose. You can track it by the tracking no.
















