MCP131T-300E/TT Microchip Integrated Circuit (Other) In Stock
The Microchip MCP131T-300E/TT is a single-channel voltage supervisor and microprocessor reset IC that monitors a 3.0 V rail with a trip threshold between 2.857 V and 3.003 V. It asserts a reset output to hold a processor in a safe state during power-up and brownout conditions, housed in a minimal 3-pin SOT-23 package.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP131T-300E/TT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2964(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 3.0 V threshold voltage supervisor with tight trip window from 2.857 V to 3.003 V
- Single-channel reset output keeps MCU in reset during power-up and undervoltage conditions
- Ultra-compact SOT-23-3 package requiring negligible PCB footprint
- Pb-free, RoHS-compliant construction with JEDEC e3 finish code
- No external components required for basic power-on reset operation
Applications
MCP131T-300E/TT is used in microcontroller-based systems powered from a 3.3 V rail where a reliable power-on reset and brownout detection are essential for safe program execution. It is commonly placed on IoT sensor nodes, handheld instruments, and consumer electronics boards to prevent undefined MCU behavior during supply ramp-up or momentary voltage dips.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-3 |
| Factory Lead Time | 19Weeks |
| 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 | R-PDSO-G3 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TO-236 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| 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 | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +2.93V |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the monitored voltage threshold range of MCP131T-300E/TT and how tightly is it specified?
MCP131T-300E/TT monitors a nominal 3.0 V supply and asserts its reset output whenever VCC falls below the 2.857 V to 3.003 V trip window. This ±5% threshold tolerance is sufficiently tight for most 3.3 V microcontroller power rails without needing external trim components.
How many external components does MCP131T-300E/TT require for a complete power-on reset circuit?
MCP131T-300E/TT requires zero external components for basic power-on reset operation. The fixed-threshold supervisor integrates all necessary comparator and delay circuitry within its 3-pin SOT-23-3 body, making it one of the smallest complete reset solutions available for 3 V systems.
For a space-constrained wearable design, how does the SOT-23-3 package of MCP131T-300E/TT compare to larger supervisor packages?
The SOT-23-3 package measures approximately 2.9 mm × 1.6 mm with a 0.95 mm pin pitch, dramatically smaller than SOIC-8 alternatives. With only 3 pins, it minimizes routing complexity and allows the reset supervisor to be placed directly adjacent to the MCU's VCC pin even on densely populated wearable PCBs.
What is the factory lead time for MCP131T-300E/TT, and should procurement teams carry safety stock?
The factory lead time for MCP131T-300E/TT is 19 weeks. Given this extended lead time, procurement teams supporting production builds should maintain safety stock of at least 8 to 12 weeks of demand to absorb supply variability and avoid line stoppages on MCU-based products.
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