MCP112-315E/TO Microchip Integrated Circuit (Other) In Stock
The Microchip MCP112-315E/TO is a single-channel voltage supervisor IC with a fixed 3.15V threshold and active-low reset output, drawing only 1µA quiescent current. It features a TO-92-3 through-hole package and provides reliable microprocessor supervisory functions for reset control. Ideal for battery-powered systems, microcontroller power-on reset, and embedded systems requiring low standby current.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP112-315E/TO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2900(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
- Ultra-low 1µA typical quiescent current extends battery life in always-on supervisory circuits
- Fixed 3.15V threshold voltage with active-low RESET output simplifies microcontroller power-on reset design
- Single-channel voltage supervisor in compact TO-92-3 through-hole package for easy prototyping and low-cost production
- No external components required — no adjustable resistor network needed for standard 3.15V rail supervision
- RoHS-compliant (e3 JEDEC code) Pb-free construction suitable for green electronics manufacturing
Applications
The MCP112-315E/TO is designed for microprocessor and microcontroller reset supervision in embedded systems running from 3.15V regulated rails, such as those powered by a single Li-Ion cell or 3.3V system supply. Its 1µA quiescent current makes it especially appropriate for battery-operated devices like remote sensors, handheld meters, and IoT edge nodes where standby power budget is critical. It is also used in industrial control units and consumer electronics to ensure orderly reset behavior during power-up, brownout conditions, or supply glitches.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TO-92-3 |
| Factory Lead Time | 31Weeks |
| 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 | O-PBCY-W3 |
| 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) | 0.00175mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1V |
| Supply Voltage-Nom (Vsup) | 3.003V |
| Surface Mount | NO |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | WIRE |
| Terminal Pitch | 1.27mm |
| Terminal Position | BOTTOM |
| Threshold Voltage-Nom | +3.08V |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
At what supply voltage does the MCP112-315E/TO assert its active-low RESET output, and how precise is this threshold?
The MCP112-315E/TO asserts its active-low RESET output when the monitored supply falls below 3.15V, with a factory-trimmed threshold accuracy of approximately ±2% across the -40°C to +125°C operating temperature range. This precision eliminates the need for external resistor dividers or trimmers, reducing BOM cost and improving repeatability in volume production of microcontroller-based boards.
How does the 1µA quiescent current of MCP112-315E/TO compare to general-purpose voltage supervisors in battery applications?
At 1µA typical quiescent current, the MCP112-315E/TO consumes roughly 10x to 50x less standby power than many standard supervisory ICs that draw 10µA to 50µA. In a coin-cell battery application using a CR2032 (approximately 220mAh capacity), the MCP112-315E/TO alone would consume under 0.01% of total capacity per year, making it effectively transparent to the power budget of IoT sensors, data loggers, and wearable devices.
Can the MCP112-315E/TO be used in a 3.3V microcontroller system, and what is the voltage margin implication?
Yes, the MCP112-315E/TO with its 3.15V threshold is commonly used to supervise a 3.3V rail, asserting RESET when the supply drops below 3.15V — providing a 150mV margin below the nominal 3.3V. This ensures the microcontroller receives a reset signal before the supply falls outside the MCU's guaranteed operating range (typically 2.7V minimum for 3.3V-class MCUs), preventing erratic program execution during brownouts or power cycling.
What are the mechanical dimensions of the TO-92-3 package, and how does it affect hand-soldering and prototyping workflows?
The TO-92-3 package used by MCP112-315E/TO has a cylindrical plastic body approximately 4.5mm in diameter and 3.5mm tall, with three 0.45mm-diameter leads on 1.27mm (0.050") pitch spacing. This standard through-hole form factor is compatible with standard 2.54mm perfboard and breadboards when leads are bent, making it easy to hand-solder during prototyping. The low-profile body and axial lead arrangement also suit wave-soldering in through-hole production runs.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.6400 | $0.64 |
| 100+ | $0.4900 | $49.00 |
| 250+ | $0.3680 | $92.00 |
| 1000+ | $0.3430 | $343.00 |
| 2000+ | $0.2950 | $590.00 |
| 4000+ | $0.2900 | $1160.00 |
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