PTC thermistors as
limit temperature sensors
Motor protection, single sensors
Series/Type:
Date:
B59100
January 2016
© EPCOS AG 2016. 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.
Sensors
Motor protection, single sensors
M1100
Applications
Thermal protection of winding in electric
motors
Limit temperature monitoring
Features
Thermistor pellet with insulating
encapsulation
Low-resistance type, steep R/T curve
Silver-plated and PTFE-insulated AWG 26
litz wires
Extremely fast response due to small
dimensions
Characteristics for sensing temperatures
T
sense
= 90 up to 160
°C
conform with
DIN 44081
Color coding of litz wires to DIN 44081
UL approval to UL 1434 (file number
E69802)
RoHS-compatible
Delivery mode
Bulk
General technical data
Max. operating voltage
Measuring voltage
1)
Max. measuring voltage
1)
Rated resistance
Insulating test voltage
Thermal threshold time
Operating temperature range
Operating temperature range
Dimensional drawing
Dimensions in mm
(T
A
= 0 ... 40
°C)
(T
A =
25
°C
... T
sense
+5 K)
For T
A
see table "Electrical
specifications"
(V
PTC
≤
2.5 V)
Acc. to DIN 44080
Acc. to DIN 44080
(V
≤
V
meas,max
)
(V = V
max
)
V
max
V
meas
V
meas,max
R
R
V
ins
t
a
T
op
T
op
30
≤
2.5
7.5
≤
100
2.5
≤
3
25/ T
sense
+23
0/+40
V DC
V DC
V DC
Ω
kV AC
s
°C
°C
1) V
meas
and V
meas,max
for 90
°C ≤
T
sense
≤
160
°C
acc. to DIN 44081.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 12
Sensors
Motor protection, single sensors
M1100
Electrical specifications and ordering codes
T
sense
R
(T
sense
∆T)
(V
PTC
≤
2.5 V)
Ω
≤
570
≤
570
≤
570
≤
550
≤
550
≤
550
≤
550
≤
550
≤
550
≤
550
≤
550
≤
550
≤
550
≤
570
≤
570
R
(T
sense
+
∆T)
(V
PTC
≤
2.5 V)
Ω
≥
570
≥
570
≥
570
≥
1330
≥
1330
≥
1330
≥
1330
≥
1330
≥
1330
≥
1330
≥
1330
≥
1330
≥
1330
≥
570
≥
570
R
(T
sense
+ 15 K)
(V
PTC
≤
7.5 V)
Ω
-
-
-
≥
4k
≥
4k
≥
4k
≥
4k
≥
4k
≥
4k
≥
4k
≥
4k
≥
4k
≥
4k
-
-
R
(T
sense
+ 23 K)
(V
PTC
≤
7.5 V)
Ω
≥
10 k
≥
10 k
≥
10 k
-
-
-
-
-
-
-
-
-
-
≥
10 k
≥
10 k
Ordering code
°C
∆T
=
±5
K
60
70
80
90
100
110
120
130
140
145
150
155
160
∆T
=
±7
K
170
180
B59100M1060A070
B59100M1070A070
B59100M1080A070
B59100M1090A070
B59100M1100A070
B59100M1110A070
B59100M1120A070
B59100M1130A070
B59100M1140A070
B59100M1145A070
B59100M1150A070
B59100M1155A070
B59100M1160A070
B59100M1170A070
B59100M1180A070
Color coding of litz wires (to DIN 44081)
T
sense
°C
60
70
80
90
100
110
120
130
140
145
150
155
160
170
180
Color
white/grey
white/brown
white/white
green/green
red/red
brown/brown
grey/grey
blue/blue
white/blue
white/black
black/black
blue/black
blue/red
white/green
white/red
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 12
Sensors
Motor protection, single sensors
M1100
Reliability data
Test
Electrical endurance,
constant
Damp heat
Standard
IEC 60738-1
IEC 60738-1
Test conditions
Storage at V
max
and T
op,max
(@ V
max
)
Test duration: 1000 h
Temperature of air: 40
°C
Relative humidity of air: 93%
Duration: 56 days
Test according to IEC 60068-2-78
T
1
= T
op,min
(0 V), T
2
= T
op,max
(0 V)
Number of cycles: 100
Test duration: 30 min
Test according to IEC 60068-2-14, test Na
Frequency range: 10 to 55 Hz
Displacement amplitude: 0.75 mm
Test duration: 3
×
2 h
Test according to IEC 60068-2-6, test Fc
∆R
25
/R
25
< 25%
< 10%
Rapid change
of temperature
IEC 60738-1
< 25%
Vibration
IEC 60738-1
< 5%
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 12
Sensors
Motor protection, single sensors
M1100
Characteristics (typical)
PTC resistance R
PTC
versus PTC temperature T
PTC
(measured at low signal voltage)
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 12
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