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
What are the key features of MCP1321T-46LE/OT?
- 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
What is MCP1321T-46LE/OT used for?
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.
What are the specifications of MCP1321T-46LE/OT?
| 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 |
Where can I find the MCP1321T-46LE/OT datasheet?
MCP1321T-46LE/OT Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP1321T-46LE/OT?
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.
Related Guides
LM34966QPWPRQ1 Converter Selection and Procurement Guide
Select LM34966QPWPRQ1 and compare four power-management paths using topology, compatibility, qualification, and procurement checks.
Oct 27, 2026
ERJ-2RKF49R9X Design Guide for PCB Validation
Validate a 49.9 ohm resistor position with power calculations, termination topology, thermal checks, and controlled PCB measurements.
Oct 27, 2026
LM34966QPWPRQ1 Design Guide for SEPIC Power Supplies
Design an LM34966QPWPRQ1 SEPIC supply with practical current, voltage, magnetic, thermal, and validation checks.
Oct 26, 2026
NSI50350AST3G Selection Guide: Package, Current and Procurement Fit
Select NSI50350AST3G and screen four NSI alternatives by current, package, thermal limits, compliance evidence, and traceable supply.
Oct 26, 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.
More from Microchip
| 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 |
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.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit