TMP421YZDT Texas Instruments Integrated Circuit (Other) In Stock

Name: TMP421YZDT
Brand: Texas Instruments
SKU: TMP421YZDT
Availability: InStock

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.

OBSOLETEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

TMP421YZDTOther

Quick Facts

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

What are the key features of TMP421YZDT?

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

What is TMP421YZDT used for?

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.

What are the specifications of TMP421YZDT?

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

Where can I find the TMP421YZDT datasheet?

TMP421YZDT Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for TMP421YZDT?

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.

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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.

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AvailabilityIn Stock

Reference Price (USD)

From $0.9600

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$1.6000	$1.60
18+	$1.2800	$23.04
60+	$0.9600	$57.60

pcs

Unit price: $1.6000 · Total: $1.60

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”

James Wright

Supply Chain Director, CircuitPro Ltd, UK

TMP421YZDT Texas Instruments Integrated Circuit (Other) In Stock

What are the key features of TMP421YZDT?

What is TMP421YZDT used for?

What are the specifications of TMP421YZDT?

Compliance & Regulatory

Where can I find the TMP421YZDT datasheet?

What are equivalent replacements for TMP421YZDT?

Frequently Asked Questions

What resolution and accuracy does the TMP421YZDT provide for temperature measurements?

Which communication interface does TMP421YZDT use, and how many wires does it require?

How does TMP421YZDT perform in battery-powered or low-power applications?

What package does TMP421YZDT use and what are its physical dimensions?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Texas Instruments

More from Texas Instruments

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