B57869S0103G140

NTC thermistors for

temperature measurement

Miniature sensors

with bendable wires

Series/Type: B57869S

Date: January 2018

© EPCOS AG 2018. Reproduction, publication and dissemination of this publication, enclosures hereto and the

information contained therein without EPCOS' prior express consent is prohibited.

EPCOS AG is a TDK Group Company.

High measuring accuracy

between 0 °C and 70 °C

Excellent long-term stability

Epoxy encapsulation

Silver-plated nickel leads

UL approval (E69802)

Options

Alternative lead lengths on request

Delivery mode

Bulk

Temperature tolerance (0 ... 70 °C) ∆T ±0.2, ±0.5 K

Dissipation factor (in air) δ

th

approx. 1.5 mW/K

Thermal cooling time constant (in air) τ

c

approx. 12 s

Heat capacity C

th

approx. 18 mJ/K

Electrical specification and ordering codes

R

25

10 k 8016 3988 B57869S0103+140

30 k 8018 3964 B57869S0303+140

Temperature measurement B57869S

Miniature sensors with bendable wires S869

Page 2 of 21Please read Cautions and warnings and

For calculation of the R/T characteristics refer to our special tool "NTC R/T calculation". You may

download this tool from the Internet (www.epcos.com/tools → NTC Thermistors → NTC R/T

Calculation).

T: 155 °C

t: 1000 h

Storage in damp

heat, steady state

IEC

60068-2-78

Temperature of air: 40 °C

Relative humidity of air: 93%

Duration: 56 days

< 1% No visible

damage

Rapid temperature

cycling

IEC

60068-2-14

Lower test temperature: 55 °C

Upper test temperature: 155 °C

Number of cycles: 100

< 1% No visible

damage

Endurance P

max

< 3% No visible

Temperature measurement B57869S

Miniature sensors with bendable wires S869

Page 3 of 21Please read Cautions and warnings and