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AZ78L05Z-E1 is listed in the Voltage Regulators - Linear, Low Drop Out (LDO) Regulators range at ChipApex. The manufacturer field lists Diodes Incorporated. Its product description is IC REG LINEAR 5V 100MA TO92. Review the specifications below when checking this part for your BOM.
The AZ78L05Z-E1 is a three-terminal positive linear regulator from the AZ78LXX series, manufactured by BCD Semiconductor Manufacturing Limited. It provides a fixed output voltage of 5V with an output current capability up to 100mA. The device features internal short circuit current limiting and thermal overload protection. It operates within an input voltage range of 15V to 20V and maintains an output voltage tolerance of ±5% over the full temperature range of -40°C to 125°C. The component is housed in a plastic TO-92 package.
Verify that the part number suffix 'E1' corresponds to lead-free compliance as specified in the ordering information table. Confirm the package type matches the Z designation for TO-92 bulk packing. Ensure the manufacturer listed on documentation aligns with BCD Semiconductor Manufacturing Limited rather than Diodes Incorporated.
Select this component when local on-card regulation is required to eliminate distribution problems associated with single-point regulation. It serves as a replacement for Zener diode/resistor combinations, offering improved effective output impedance and lower quiescent current. Suitable for applications needing fixed 5V regulation without external feedback networks.
This component belongs to the AZ78LXX series of three-terminal positive regulators available in multiple fixed output voltages including 5V, 8V, 9V, and 12V. The series supports various packages such as TO-92, SOT-223, and SOT-89. The specific model utilizes the Z package variant designed for through-hole mounting in standard TO-92 configurations.
Public confirmed substitute part numbers include AZ78L05Z-G1.
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