TMP421YZDT Texas Instruments Integrated Circuit (Other) In Stock
TMP421YZDT is a dual-channel remote and local temperature sensor IC with 12-bit resolution and 2-wire interface. Offers up to ±2.5°C accuracy across a -40°C to +125°C operating range. Available from Texas Instruments in compact DSBGA package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TMP421YZDT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9600(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
- 12-bit resolution dual-channel temperature sensing with ±2.5°C accuracy
- 2-wire SMBus/I2C interface for simple microcontroller integration
- Ultra-low 0.038 mA operating current ideal for power-sensitive designs
Applications
TMP421YZDT is designed for systems requiring precise thermal monitoring of both local and remote temperature zones, such as laptop computers, servers, and industrial equipment. Its 12-bit resolution and 2-wire interface make it ideal for battery-powered devices and embedded controllers. The sensor supports thermal management algorithms in CPUs, GPUs, and power conversion circuits operating across a -40°C to +125°C range.
Specifications
| YTEOL | 0 |
| Accuracy-Max (Cel) | 2.5Cel |
| Body Breadth | 0.902mm |
| Body Height | 0.625mm |
| Body Length or Diameter | 2.092mm |
| JESD-609 Code | e1 |
| Mounting Feature | SURFACE MOUNT |
| Number of Bits | 12 |
| Operating Current-Max | 0.038mA |
| Output Interface Type | 2-WIRE INTERFACE |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | BGA8,2X4,20 |
| Package Shape/Style | RECTANGULAR |
| Sensors/Transducers Type | TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.7V |
| Surface Mount | YES |
| Terminal Finish | TIN SILVER COPPER |
| Termination Type | SOLDER |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What resolution and accuracy does the TMP421YZDT provide for temperature measurements?
The TMP421YZDT provides 12-bit resolution with a maximum accuracy of ±2.5°C. It supports both local and remote temperature sensing over the -40°C to +125°C operating range, making it suitable for precision thermal management in servers and industrial systems.
Which communication interface does TMP421YZDT use, and how many wires does it require?
TMP421YZDT uses a 2-wire SMBus/I2C interface, requiring only 2 wires for communication with a host microcontroller. This simplifies PCB routing and reduces pin count, making it an efficient choice for space-constrained designs with multiple sensors on a shared bus.
How does TMP421YZDT perform in battery-powered or low-power applications?
TMP421YZDT has a maximum operating current of only 0.038 mA, making it highly suitable for battery-powered and energy-efficient systems. At this low current draw, it can run continuously with minimal impact on overall system power budget, enabling extended battery life in portable devices.
What package does TMP421YZDT use and what are its physical dimensions?
TMP421YZDT comes in a compact DSBGA (YZDT) surface-mount package measuring approximately 2.092 mm x 0.902 mm x 0.625 mm body height. This small form factor is well-suited for space-constrained PCB layouts in mobile computing and wearable devices.
Related Guides
How to Choose a 3528 SMD Indicator LED for Blue Status Lighting: Selection Guide
A practical 3528 SMD indicator LED selection guide using 150141BS73100 and related Wurth 150141 variants for blue status lighting.
Jul 5, 2026
BAS70KFILM Design Guide for Low-Leakage Signal Clamping and RF Detector Inputs
Practical BAS70KFILM design guidance for signal clamps, RF detector inputs, leakage control, capacitance, layout, and sourcing alternatives.
Jul 5, 2026
How to Choose a BAS70 Schottky Diode for Signal Clamping: Selection Guide
A practical BAS70KFILM and BAS70-family Schottky diode selection guide for signal clamping, RF detection, leakage, and topology choices.
Jul 4, 2026
AMC1202DWVR Design Guide for Isolated Current Sensing
Practical AMC1202DWVR design guide covering shunt sizing, isolation layout, input filtering, ADC scaling, and sourcing choices.
Jul 4, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.6000 | $1.60 |
| 18+ | $1.2800 | $23.04 |
| 60+ | $0.9600 | $57.60 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”