MCP9808-E/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
The Microchip MCP9808-E/MS is a high-accuracy I2C digital temperature sensor with ±1°C maximum accuracy and a 3 mm × 3 mm MSOP-8 surface-mount package. It delivers 0.0625°C resolution over a wide industrial temperature range. Available from stock worldwide with competitive pricing.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP9808-E/MS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0500(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 MCP9808-E/MS?
- ±1°C maximum accuracy with 0.0625°C resolution over the full operating range for precise thermal monitoring without external calibration
- I2C interface with configurable alert thresholds and shutdown mode enables event-driven temperature protection in MCU-based systems
- Ultra-compact 3 mm × 3 mm MSOP-8 footprint at 1.1 mm body height for space-constrained PCBs in wearables and IoT nodes
What is MCP9808-E/MS used for?
The MCP9808-E/MS is used in applications requiring accurate thermal monitoring such as CPU thermal management, battery charger protection, and environmental data logging in IoT sensor nodes. Its I2C interface and configurable alert pins allow the host microcontroller to receive temperature threshold interrupts at ±1°C accuracy without continuous polling. The 3 mm × 3 mm MSOP-8 package makes it straightforward to integrate alongside a microcontroller or power management IC on a compact two-layer PCB.
What are the specifications of MCP9808-E/MS?
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 15Weeks |
| YTEOL | 14 |
| Accuracy-Max (Cel) | 1Cel |
| Body Breadth | 3mm |
| Body Height | 1.1mm |
| Body Length or Diameter | 3mm |
| Housing | PLASTIC |
| JESD-609 Code | e3 |
| Mounting Feature | SURFACE MOUNT |
| Number of Bits | 16 |
| Operating Current-Max | 0.2mA |
| Output Interface Type | 2-WIRE INTERFACE |
| Package Body Material | PLASTIC |
| Package Shape/Style | SQUARE |
| Sensors/Transducers Type | TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.7V |
| Surface Mount | YES |
| Terminal Finish | Matte Tin (Sn) |
| Termination Type | SOLDER |
| ## MCP9808-E/MS Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the MCP9808-E/MS datasheet?
MCP9808-E/MS Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP9808-E/MS?
Compatible alternatives and drop-in replacements for MCP9808-E/MS:
Switch/Digital Sensor, 16 Bit(s), 1Cel, Square, 8 Pin, Surface Mount
suggested
suggested
suggested
suggested
Serial Switch/Digital Sensor, 16 Bit(s), 1Cel, Rectangular, 8 Pin, Surface Mount
Frequently Asked Questions
What temperature measurement accuracy and resolution does the MCP9808-E/MS provide for thermal monitoring applications?
The MCP9808-E/MS achieves a maximum accuracy of ±1°C and a measurement resolution of 0.0625°C. This combination makes it suitable for applications such as battery pack over-temperature protection, server inlet air monitoring, and HVAC zone control where a 1°C error budget is acceptable without the cost of factory-calibrated precision sensors.
How does the I2C alert output of the MCP9808-E/MS simplify over-temperature protection circuit design?
The MCP9808-E/MS has a programmable alert output that asserts when the measured temperature exceeds user-defined upper or lower thresholds or the critical temperature limit. This pin can drive an interrupt on the host MCU or directly trip a power switch, eliminating the need for a discrete comparator and external threshold resistors, while the I2C bus allows threshold values to be updated in firmware.
How many MCP9808-E/MS sensors can share a single I2C bus in a multi-zone temperature monitoring system?
The MCP9808-E/MS supports 3 hardware address pins, allowing up to 8 devices on one I2C bus. A system monitoring 8 thermal zones such as a server blade, a battery pack with 8 cells, or a multi-channel power supply can therefore use a single 2-wire bus running at 400 kHz without address conflicts or additional multiplexers.
How small is the MCP9808-E/MS package, and how does it compare to a TO-92 discrete temperature sensor in board area?
The MCP9808-E/MS MSOP-8 package body is 3 mm × 3 mm with a 1.1 mm height, occupying roughly 9 mm² of PCB area. A standard TO-92 package requires a through-hole footprint of about 15–20 mm² plus lead-bend clearance, making the MSOP-8 about 40–55% smaller by pad area and fully compatible with automated SMT reflow assembly.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.0800 | $1.08 |
| 2+ | $1.0678 | $2.14 |
| 100+ | $1.0500 | $105.00 |
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