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SC78M09HT
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Product Detailed Parameters
- Description：ANA MED CUR POS VOLT REG
- Series：*
- Mfr：onsemi
- Package：Bulk
- Output Type：-
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- Number of Outputs：-
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- Voltage - Supply (Vcc/Vdd)：-
- Frequency - Switching：-
- Duty Cycle (Max)：-
- Synchronous Rectifier：-
- Clock Sync：-
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- Operating Temperature：-
- Mounting Type：-
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Overview
The SC78M09HT is a fixed linear voltage regulator from the MC78Mxx series, manufactured by onsemi. It provides a nominal output voltage of 9 V with a maximum output current capability of 500 mA. The device operates within an input voltage range of 11 V to 35 V and supports junction temperatures up to +125 °C. Key electrical parameters include a line regulation of 50 mV and a load regulation of 180 mV. It features a typical power supply rejection ratio (PSRR) of 80 dB and a static current of approximately 3.2 mA. The component is housed in a surface-mount TO-252-3 package.
Feature Summary
- Provides a stable fixed positive output voltage for DC power applications
- Capable of delivering up to 500 mA output current
- Includes internal thermal overload protection and safe operating area limitations
Applications
- General-purpose power supply regulation
- Battery-powered equipment voltage conditioning
- Embedded system logic power rails
Procurement Notes
Verify the exact suffix 'HT' against the official onsemi datasheet to confirm package type and tape-and-reel specifications. Ensure the ordering part number matches the required surface-mount configuration. Confirm RoHS compliance status and environmental declarations via the manufacturer's documentation before procurement.
Selection Notes
Select this component when a 9 V fixed output at 500 mA is required in a surface-mount form factor. Compare line and load regulation values against application tolerance requirements. Verify that the input voltage remains within the 11 V to 35 V operational window to ensure proper regulation and prevent dropout or overvoltage stress.
Part Context
This part belongs to the MC78Mxx family of 500 mA positive voltage regulators. It shares functional characteristics with other members like MC78M09CDTG but differs in packaging. The SC78M prefix typically denotes specific automotive or industrial grade variants within the broader 78M series portfolio offered by onsemi.
Replacement Considerations
Direct pin-compatible replacements include MC78M09CDTG or MC78M09CTG, provided the package type (TO-252 vs TO-220) and suffix specifications are verified for compatibility.
