MCP131-450E/TO Microchip Integrated Circuit (Other) In Stock
The MCP131-450E/TO is a single-channel voltage supervisor and microcontroller reset IC from Microchip, with a fixed threshold of 4.38 V. It monitors supply voltage and asserts a reset output when VCC falls below the threshold, ensuring reliable system startup and brownout protection. Available in the compact TO-92-3 through-hole package from global authorized distributors.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP131-450E/TO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2990(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP131-450E/TO?
- Fixed 4.38 V supervisory threshold for accurate brownout detection
- Single-channel voltage monitoring with active-low reset output
- Low quiescent current consumption for battery-sensitive designs
- TO-92-3 through-hole package for easy prototyping and high-reliability assemblies
- RoHS-compliant, halogen-free construction
- Wide operating temperature range for industrial environments
What is MCP131-450E/TO used for?
The MCP131-450E/TO is used in microcontroller-based systems where reliable power-on reset and brownout detection are required. It is well suited for embedded systems, industrial controllers, and consumer electronics that operate from a regulated 5 V supply and need to ensure the processor is held in reset during undervoltage conditions. The TO-92 package makes it a convenient drop-in solution for designs requiring through-hole components on dense PCBs.
What are the specifications of MCP131-450E/TO?
| Pbfree Code | Yes |
| Manufacturer Package Code | TO-92-3 |
| Factory Lead Time | 21Weeks |
| YTEOL | 9 |
| Additional Feature | BAT BUP SW:N;MNL RST:N;OV DET:N;PW FL IP:N;PW FL IO:N;PW FL OP:N;PRG RST DLY:N;UV DET:N;WD:N;WWD:N |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | O-PBCY-T3 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SIP3,.1,50 |
| Package Shape | ROUND |
| Package Style | CYLINDRICAL |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Supply Current-Max (Isup) | 0.09mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1V |
| Supply Voltage-Nom (Vsup) | 3V |
| Surface Mount | NO |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | BOTTOM |
| Threshold Voltage-Nom | +4.38V |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Philippines, Taiwan |
Where can I find the MCP131-450E/TO datasheet?
MCP131-450E/TO Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP131-450E/TO?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
At what supply voltage does the MCP131-450E/TO assert its reset output?
The MCP131-450E/TO has a fixed supervisory threshold of 4.38 V. When VCC drops below this level, the device asserts its active-low RESET output, holding the microcontroller in reset until the supply recovers and a defined timeout period elapses. This protects against brownout conditions in 5 V embedded systems.
How does the TO-92-3 package affect PCB design choices for the MCP131-450E/TO?
The 3-pin TO-92 through-hole package requires a simple 3-hole footprint on the PCB with 2.54 mm pitch spacing, making it easy to hand-solder during prototyping or rework. While its footprint is larger than SOT-23 surface-mount alternatives, the TO-92 package improves mechanical stability in vibration-prone industrial environments and supports wave-soldering in high-volume production.
Can the MCP131-450E/TO replace other fixed-threshold supervisors in an existing 5 V microcontroller design?
Yes. The MCP131-450E/TO is pin-compatible with many standard 3-pin voltage supervisors that provide a 4.38 V reset threshold in a TO-92-3 package. Its single-channel architecture, active-low open-drain reset output, and RoHS-compliant construction make it a direct replacement in designs originally using comparable Microchip MCP130 or MCP131 family devices, reducing qualification effort for the new part.
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