MCP112T-315E/LB Microchip Transistor (SOT23 (3-Pin)) In Stock
Microchip MCP112T-315E/LB is a single-channel voltage supervisor that monitors a 3.15 V threshold window of 3.003 V to 3.157 V and asserts a reset when the supply falls below the trip point. In a 3-pin SC-70 package, it provides reliable microcontroller reset and brown-out protection in battery-powered and 3.3 V rail systems.
- Manufacturer
- Microchip
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP112T-315E/LB Datasheet PDF
- Category
- Transistor
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 3.15 V threshold monitoring for 3.3 V rail microcontroller reset protection
- Narrow threshold window of 3.003 V to 3.157 V for precise brown-out detection
- Active-low manual reset output for immediate system reset signaling
- Ultra-compact 3-pin SC-70 package with minimal PCB footprint
- Single-channel voltage detector requiring no external components
- RoHS-compliant Pb-free construction suitable for global market designs
Applications
The MCP112T-315E/LB is used in 3.3 V microcontroller systems, portable consumer electronics, and industrial control boards that require reliable supply voltage supervision and automatic reset on brown-out conditions. It is also deployed in battery-powered IoT nodes, embedded sensor modules, and power management circuits where a compact and component-free reset supervisor is needed.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SC70-3 |
| Factory Lead Time | 30Weeks |
| 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 |
| 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 | +3.08V |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| ## MCP112T-315E/LB Alternates Showing results | Image |
| 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
Compatible alternatives and drop-in replacements for MCP112T-315E/LB:
suggested
Frequently Asked Questions
What voltage threshold does MCP112T-315E/LB monitor, and how tight is its detection window?
MCP112T-315E/LB monitors a 3.15 V nominal threshold with a tight window of 3.003 V to 3.157 V, providing brown-out detection accuracy of approximately ±2.5% around the trip point. This narrow tolerance ensures reliable reset assertion before a 3.3 V rail drops far enough to corrupt MCU registers.
How does MCP112T-315E/LB simplify 3.3 V microcontroller reset circuits compared to discrete resistor-divider solutions?
MCP112T-315E/LB requires no external resistors, capacitors, or op-amp comparators to implement the brown-out threshold, replacing a 4-component to 6-component discrete circuit with a single 3-pin device. This reduces BOM cost, eliminates tolerance stacking across passive components, and shrinks PCB area to the SC-70 footprint.
Is MCP112T-315E/LB appropriate for designs that must pass RoHS certification in European and Asian markets?
Yes, MCP112T-315E/LB carries a Pb-free code of Yes and is RoHS-compliant, satisfying EU RoHS 2 Directive and equivalent Asian regulations. The SC70-3 package with JESD-609 e3 lead finish code confirms that the part uses lead-free termination alloys compatible with standard SAC solder paste reflow profiles.
What factory lead time must procurement teams account for when ordering MCP112T-315E/LB in production volumes?
Factory lead time for MCP112T-315E/LB is approximately 30 weeks, which is significantly longer than most passive components. Production teams should initiate purchase orders at least 8 months before scheduled assembly start dates and maintain 3 to 6 months of safety stock to avoid supply disruptions on dependent board builds.
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