| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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3,000 pcs
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3000 pcs | On Request | 1 | On Request | On Request | 05+ | On Request | On Request |
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The Microchip Technology MCP121T-300E/LB is a voltage supervisor IC designed to ensure reliable system operation by keeping microcontrollers in reset until system voltage stabilizes. It monitors a single voltage level with a typical threshold of 2.93V.
This device features an active-low, open-drain output and a typical reset delay time of 120 ms. It operates over an extended temperature range of -40°C to 125°C and is available in a compact SC-70, SOT-323 surface-mount package.
Applications for the MCP121T-300E/LB include critical microcontroller and microprocessor power-monitoring in portable battery-powered equipment, computers, and intelligent instruments. Its low supply current of 1.75 µA makes it suitable for power-sensitive designs.
The supervisor resets the microcontroller during power-loss events, preventing data corruption or system malfunction. The open-drain output requires an external pull-up resistor for proper operation.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.75 | $0.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The typical threshold voltage is 2.93V.
The typical supply current is 1 µA, with a maximum of 20 µA.
The operating temperature range is -40°C to 125°C.
It is available in a SC-70-3 surface-mount package.
The typical reset delay time is 120 ms.
The output is active-low, open-drain or open-collector.