MCP111T-240E/LB Microchip Integrated Circuit (SOT23 (3-Pin)) In Stock
Microchip MCP111T-240E/LB is a single-channel voltage detector and supervisor with a 2.4 V nominal trip threshold (2.262 V to 2.378 V range). It provides an active-low reset output to protect microcontrollers during brownout and power-down events. Packaged in a 3-pin SC-70 for ultra-compact designs, it suits battery-powered IoT devices, wearables, and embedded modules.
- Manufacturer
- Microchip
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP111T-240E/LB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1990(MOQ 100)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 2.4 V nominal threshold with ±2.4% accuracy (2.262 V to 2.378 V detection range)
- Active-low open-drain RESET output for direct MCU connection
- 3-pin SC-70-3 ultra-compact package for minimal board footprint
- No external components required for voltage supervisor operation
- Lead-free and RoHS compliant (JESD-609 e3)
- Extended operating temperature from -40°C to +125°C for industrial designs
Applications
The MCP111T-240E/LB is deployed as a power supply supervisor in battery-operated IoT nodes, wearable devices, and handheld instruments where a 2.4 V reset threshold is needed to protect microcontroller state during low-battery events. Its SC-70-3 package and zero-external-component design allow system designers to add reliable brownout protection in space-constrained embedded layouts.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SC70-3 |
| Factory Lead Time | 7Weeks |
| YTEOL | 8 |
| Additional Feature | MNL RST:N;PW FL IO:N;PRG RST DLY:N;WD:N;WDO:N;WWD:N |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE DETECTOR |
| 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 | TSOP3,.08,25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Supply Current-Max (Isup) | 0.00175mA |
| 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 | 0.65mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +2.32V |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | SOT23 (3-Pin) |
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 exact threshold voltage range of the MCP111T-240E/LB, and how tight is the detection accuracy?
The MCP111T-240E/LB detects a supply falling between 2.262 V and 2.378 V, corresponding to a nominal 2.4 V trip threshold with approximately ±2.4% accuracy. This tight band ensures that the active-low RESET output asserts reliably before the monitored 2.5 V or 3.3 V logic rail drops below safe operating limits for the MCU.
How does the SC-70-3 package of MCP111T-240E/LB compare to SOT-23-3 for ultra-compact board designs?
The MCP111T-240E/LB uses an SC-70-3 package, which has a body size of approximately 2 mm x 1.25 mm — notably smaller than the SOT-23-3 at 3 mm x 1.75 mm. This extra space savings is valuable in wearable devices, hearing aids, and miniature IoT sensors where every square millimeter of PCB area counts.
What is the lead time for MCP111T-240E/LB, and should engineers carry safety stock for this part?
The MCP111T-240E/LB has a factory lead time of 7 weeks. For production schedules relying on this 3-pin SC-70 voltage supervisor, procurement teams should plan safety stock of at least 4 to 6 weeks of consumption to buffer against demand spikes, especially for high-volume IoT device builds.
Can the MCP111T-240E/LB supervise a 3.3 V supply rail in an MCU system without any additional external components?
The MCP111T-240E/LB is designed as a standalone supervisor requiring no external resistors or capacitors for basic operation; it monitors the supply pin directly and drives its open-drain RESET pin low when VCC falls below 2.4 V. However, since its trip threshold is 2.4 V, it is better suited to supervise a 2.5 V or lower rail rather than a 3.3 V rail without additional level shifting.
Related Guides
How to Choose a BAS70 Schottky Diode for Signal Clamping: Selection Guide
A practical BAS70KFILM and BAS70-family Schottky diode selection guide for signal clamping, RF detection, leakage, and topology choices.
Jul 4, 2026
AMC1202DWVR Design Guide for Isolated Current Sensing
Practical AMC1202DWVR design guide covering shunt sizing, isolation layout, input filtering, ADC scaling, and sourcing choices.
Jul 4, 2026
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $0.3400 | $34.00 |
| 250+ | $0.3090 | $77.25 |
| 1000+ | $0.2800 | $280.00 |
| 1500+ | $0.2550 | $382.50 |
| 2250+ | $0.2380 | $535.50 |
| 3000+ | $0.1990 | $597.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”