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Product Detailed Parameters
- Description：IC VREF SHUNT 0.5% SOT23-3
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：1.225V
- Voltage - Output (Max)：-
- Current - Output：12 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The LM4041CELT-1.2 is a micropower shunt voltage reference manufactured by STMicroelectronics, providing a fixed output of 1.225 V. It features an initial accuracy of ±0.5% at 25 °C and a maximum temperature coefficient of 100 ppm/°C. The device operates within a wide temperature range from -40 °C to +125 °C and draws a typical cathode current of 50 µA. Packaged in a surface-mount SOT-23-3 (TO-236-3) case, it supports a maximum shunt current of 12 mA and exhibits low noise characteristics.
Feature Summary
- Provides stable 1.225 V reference with high precision
- Operates stably under capacitive loads without external components
- Ultra-low power consumption suitable for battery applications
- Available in compact surface-mount packages
Applications
- Portable battery-powered instrumentation
- Data acquisition systems requiring precise references
- Temperature sensing circuits
- Handheld devices with space constraints
Procurement Notes
Verify the specific grade suffix 'C' corresponds to the required ±0.5% accuracy and extended temperature range (-40°C to +125°C). Confirm the package designation matches the SOT-23-3 footprint requirements for your PCB layout. Ensure the ordering code includes the correct tape and reel quantity if automated assembly is planned.
Selection Notes
Select this component when a fixed 1.225 V reference with moderate precision is needed. It is suitable for designs prioritizing low quiescent current and stability with capacitive loads. Consider alternative grades if tighter tolerance or different temperature ranges are required.
Part Context
This part belongs to the LM4041 family of micropower shunt voltage references. The family offers various accuracy grades and temperature ranges in small surface-mount packages. It serves as a cost-effective solution for precision voltage referencing in industrial and consumer electronics.
Replacement Considerations
LM4041AECT-1.2: Offers higher accuracy (±0.1%) but limited to industrial temperature range. LM4041AILT-1.2: Provides ±0.1% accuracy in SOT-23-3L package.
