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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION

DATA.

TMP61

SBOS921 – DECEMBER 2018

TMP61 Silicon-Based Linear Thermistor for Temperature Sensing

1

1 Features

1

•

Silicon-Based Thermistor With a

Positive Temperature Coefficient (PTC)

•

Linear Resistance Change With Temperature

–

Simplifies Resistance-to-Temperature

Conversion

–

Decrease Accuracy Spread Compared to Non-

Linear Negative Temperature Coefficient

(NTC) Thermistor-Based Circuits Across a

Wide Temperature Range

•

10-k

Ω Nominal Resistance at 25°C (R25)

–

±1% Maximum (0°C to 70°C)

•

Consistent Sensitivity Across Temperature

–

6400 ppm/°C TCR (25°C)

–

0.2% Typical TCR Tolerance Across

Temperature (-40°C to 125°C)

•

Wide Operating Temperature:

–

–65 to +150°C

•

Fast Thermal Response Time:

–

0.6s (DEC package)

•

Long Lifetime and Robust Performance

–

Ultra low power consumption compared to

traditional NTCs that lower errors due to self

heating

–

Built-in fail-safe in case of short circuit failures

–

<1% Maximum Drift after high temperature and

high humidity stress tests

•

Available Package Options:

–

X1SON (DEC/0402 Footprint)

–

TO-92S (LPG)

(Contact Representative for Availability)

2 Applications

•

Temperature Measurement And Monitoring

•

Thermal Compensation

•

Thermal Protection (With Comparator)

3 Description

The TMP61xx series of Silicon Linear Thermistors

has a linear positive temperature coefficient (PTC)

that results in a uniform, consistent temperature

coefficient resistance (TCR) across a wide operating

temperature range. These devices are designed for

temperature measurement, protection, compensation,

and control systems. Compared to traditional NTC

thermistors, the TMP61xx series of devices offers

enhanced linearity and consistent sensitivity across

the full temperature range. They also have robust

performance due to their immunity to environmental

variation and their built-in fail-safe behavior at high

temperatures. These devices are currently available

in a 2-pin, surface-mount, 0402 footprint-compatible

X1SON package and a 2-pin, through-hole, mini-

sized transistor-outline TO-92S package.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TMP61

X1SON

0.60 mm × 1.00 mm

TO-92S (2)(2)

4.00 mm × 3.15 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

(2) This package is in preview

SPACER

Typical Implementation Circuits

Typical Resistances vs Ambient Temperature