MCP1321T-46LE/OT Microchip Integrated Circuit (SOT23 (5-Pin)) In Stock
Microchip MCP1321T-46LE/OT is a single-channel voltage supervisor that monitors a 4.60 V rail and asserts a reset output when supply falls below threshold, packaged in a compact 5-pin SOT-23 footprint. From $0.35 in stock worldwide shipping.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MCP1321T-46LE/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6100(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 4.60 V threshold voltage supervisor with no external resistors required, simplifying board design
- Single-channel active-low reset output in a 5-pin SOT-23 package enabling minimal PCB footprint in space-constrained designs
- RoHS-compliant SOT-23-5 package with 6-week factory lead time supporting reliable supply chain planning
Applications
The MCP1321T-46LE/OT is used in microcontroller and FPGA power supervision circuits where a 4.60 V supply rail must be monitored to guarantee proper reset on power-up and brownout conditions. It is well-suited for battery-powered portable devices, industrial sensor nodes, and automotive accessories that require a compact, low-cost supervisory function without external resistor dividers. Its fixed threshold and push-pull reset output simplify firmware development by ensuring the processor starts only when the supply is within specification.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-5 |
| Factory Lead Time | 6Weeks |
| YTEOL | 9 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.01mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1V |
| Supply Voltage-Nom (Vsup) | 1.5V |
| 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 | +4.6V |
| Package | SOT23 (5-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 | Malaysia, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
At what supply voltage does the MCP1321T-46LE/OT assert its reset output?
The MCP1321T-46LE/OT asserts its reset output when the monitored supply drops below its fixed 4.60 V threshold. No external resistors are needed to set this threshold, making the device suitable for directly supervising a 5 V rail in microcontroller systems where an accurate power-on reset is required during startup and brownout events.
How does the 5-pin SOT-23 package of the MCP1321T-46LE/OT benefit space-constrained PCB layouts?
The 5-pin SOT-23 package measures approximately 2.9 mm x 1.6 mm, which allows the MCP1321T-46LE/OT to fit in dense PCB areas near the processor or power converter without consuming significant board space. This compact footprint is especially valuable in handheld devices and wearable electronics where every square millimeter of PCB area affects overall product dimensions.
Is the MCP1321T-46LE/OT a suitable alternative to a discrete RC reset circuit for a 4.5 V to 5 V power rail?
Yes, the MCP1321T-46LE/OT replaces an RC reset circuit with a precise 4.60 V fixed-threshold supervisor that guarantees reset assertion even during slow voltage ramps. Unlike an RC circuit, it provides a well-defined trip point, active reset drive on a single SOT-23-5 output pin, and RoHS-compliant packaging, which discrete components cannot match without additional calibration or testing.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.8600 | $0.86 |
| 25+ | $0.7100 | $17.75 |
| 100+ | $0.6400 | $64.00 |
| 1000+ | $0.6100 | $610.00 |
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