MCP102T-315E/TT Microchip Integrated Circuit (SOT23 (3-Pin)) In Stock
MCP102T-315E/TT is a push-pull output voltage supervisory and reset IC with a fixed 3.15 V threshold and 150 ms reset timeout. Housed in a compact 3-pin SOT-23 package. Available from stock worldwide with short lead times and competitive pricing.
- Manufacturer
- Microchip
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP102T-315E/TT Datasheet PDF
- Category
- Integrated Circuit
- 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 reset threshold with push-pull active-low output eliminates external discrete reset circuitry in 3.3 V microcontroller systems
- 150 ms minimum reset timeout provides reliable power-on stabilization for processors and FPGAs requiring clean reset assertion
- Ultra-compact 3-pin SOT-23 package occupies under 5 mm² of PCB area, ideal for battery-powered and space-constrained embedded designs
Applications
MCP102T-315E/TT is designed for microcontroller and microprocessor reset management in battery-powered consumer electronics, handheld instruments, and IoT edge devices running on 3.3 V rails. It provides automatic system reset when supply voltage drops below 3.15 V, ensuring reliable startup and brownout recovery without firmware intervention. The single-channel push-pull output directly drives the RESET pin of most MCUs, simplifying board design in small form-factor products.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-3 |
| Factory Lead Time | 6Weeks |
| 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) | 0.02mA |
| 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 | +3.08V |
| 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
Compatible alternatives and drop-in replacements for MCP102T-315E/TT:
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Frequently Asked Questions
What reset threshold voltage does MCP102T-315E/TT monitor and how accurate is it across temperature?
MCP102T-315E/TT monitors the supply voltage against a fixed 3.15 V reset threshold with a typical accuracy of ±2% across the full -40°C to +125°C operating temperature range. When VCC falls below 3.15 V, the push-pull RESET output asserts low within microseconds, holding the system in reset until the supply recovers and the 150 ms timeout elapses.
How long does MCP102T-315E/TT hold the reset signal active after power is restored to the monitored rail?
MCP102T-315E/TT holds the RESET output asserted for a minimum 150 ms reset timeout period after VCC rises above the 3.15 V threshold. This 150 ms window ensures that oscillators, voltage regulators, and memory devices complete their startup sequences before the MCU begins executing code, preventing initialization errors common in fast-ramp power supplies.
For a 3.3 V ARM Cortex-M microcontroller design, when would MCP102T-315E/TT be preferred over an adjustable threshold supervisor?
MCP102T-315E/TT is preferred when the MCU reset threshold is standardized at 3.15 V, eliminating the need for external resistors to program the trip point and reducing component count by 2-3 parts. For a Cortex-M system drawing 1 mA to 50 mA from a 3.3 V Li-ion or regulated rail, the fixed-threshold design lowers BOM cost and assembly risk versus adjustable alternatives.
What package does MCP102T-315E/TT use and what does the /TT suffix indicate for ordering?
MCP102T-315E/TT is packaged in a 3-pin SOT-23 surface-mount package measuring 2.9 mm × 1.3 mm, one of the smallest available for supervisory ICs. The /TT suffix indicates tape-and-reel packaging in quantities of 3000 units per reel, supporting automated pick-and-place assembly in high-volume manufacturing without manual component handling.
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