EPCOS Sample Kit 2016
SMD NTC Thermistors
Temperature Measurement and Compensation
in Automotive Applications
www.epcos.com
Temperature measurement and compensation
NTC (negative temperature coefficient) thermistors are thermally sensitive semiconductor
resistors which show a decrease in resistance as temperature increases. At –2%/K to –6%/K,
the negative temperature coefficients of resistance are about ten times greater than those of
metals and about five times greater than those of silicon temperature sensors. NTC thermistors are simple yet very sensitive and accurate sensing elements for measuring and control
circuits.
Features
Qualification based on AEC-Q200, Rev. D
Superior performance in high-stability applications
Accurate temperature sensing up to +150 °C
Excellent long-term aging stability in high-temperature and high humidity environment
Short response time
Alternative ratings available on request, e.g. resistance and B value
Applications
Electronic control units (ECU), e. g. for tire pressure, motor management, airbags
Displays, e. g. dashboard instruments, car radios, navigation systems
Temperature sensors for air-conditioning
Battery pack in conventional, hybrid electric and full-electric vehicles
Gear box control
LED temperature control (head and rear lights)
A short presentation with more details and applications examples can be found under:
www.epcos.com/smdntc_automotive
Important information: Some parts of this publication contain statements about the suitability of our products for certain areas of application. These
statements are based on our knowledge of typical requirements that are often placed on our products. We expressly point out that these statements
cannot be regarded as binding statements about the suitability of our products for a particular customer application. It is incumbent on the customer
to check and decide whether a product is suitable for use in a particular application. This publication is only a brief product survey which may be
changed from time to time. Our products are described in detail in our data sheets. The Important notes (www.epcos.com /ImportantNotes) and the
product-specific Cautions and warnings must be observed. All relevant information is available through our sales offices.
Components
B57251
V5472J060
B57232
V5103F360
B57251
V5103J060
B57256
V5473F360
B57254
V5104F360
B57332
V5103F360
B57342
V5103H060
B57351
V5103H060
B57352
V5103H060
B57351
V5223J060
B57352
V5223H060
B57352
V5473H060
B57356
V5473F260
B57442
V5472J062
B57452
V5472J062
B57442
V5103J062
B57451
V5103J062
B57452
V5103J062
B57451
V5333J062
B57451
V5473J062
B57452
V5104J062
B57355
V5104F360
Product range
Electrical specifications and ordering codes
R25
DRR/RR
B25/50
B25/85
B25/100
Ordering code
[kV]
%
[K]
[K]
[K]
3940
3380
3940
4050
4250
3980
3435
3980
4108
4311
4000
3455
4000
4131
4334
±3%
±1%
±3%
±1%
±1%
B57251V5472J060
B57232V5103+360
B57251V5103J060
B57256V5473+360
B57254V5104+360
3380
3590
3940
4386
3940
4386
4386
4050
4050
4200
4250
3435
3635
3980
4455
3980
4455
4455
4108
4108
4260
4311
3455
3650
4000
4480
4000
4480
4480
4131
4131
4282
4334
±1%
±3%
±3%
±3%
±3%
±3%
±3%
±1,5%
±2%
±1%
±2%
B57332V5103+360
B57342V5103+060
B57351V5103+060
B57352V5103+060
B57351V5223+060
B57352V5223+060
B57352V5473+060
B57356V5473+260
B57356V5473+160
B57355V5104+360
B57354V5104+160
3590
4386
3590
3940
4386
3940
3940
4386
3635
4455
3635
3980
4455
3980
3980
4455
3650
4480
3650
4000
4480
4000
4000
4480
±3%
±3%
±3%
±3%
±3%
±3%
±3%
±3%
B57442V5472+062
B57452V5472+062
B57442V5103+062
B57451V5103+062
B57452V5103+062
B57451V5333+062
B57451V5473+062
B57452V5104+062
EIA case size 0402
4.7
10
10
47
100
±5
±1, ±3, ±5
±5
±1, ±3, ±5
±1, ±3, ±5
EIA case size 0603
10
10
10
10
22
22
47
47
47
100
100
±1, ±3, ±5
±3, ±5
±3, ±5
±3, ±5
±3, ±5
±3, ±5
±3, ±5
±1, ±3, ±5
±3, ±5
±1, ±3, ±5
±3, ±5
EIA case size 0805
4.7
4.7
10
10
10
33
47
100
±3, ±5
±3, ±5
±3, ±5
±3, ±5
±3, ±5
±3, ±5
±3, ±5
±3, ±5
+ = Resistance tolerance:
F = ±1%
H = ±3%
J = ±5%
Application examples for SMD NTC thermistors
in automotive
1
6
4
3
2
5
1
2
3
4
5
6
Electronic control units (ECU),
e.g. tire pressure, motor management, airbags
LED temperature control (head and rear lights)
Gear box control
Temperature control for the battery pack in conventional, hybrid electric and
full-electric vehicles
Temperature sensors for air-conditioning
Display,
e.g. dashboard instruments, car radios, navigation systems
© EPCOS AG · A TDK Group Company
Edition 08/2016 · Ordering No. B57999V5999J199 · Printed in Germany · SO 0816.5