232267191155 [VISHAY]
RESISTOR, TEMPERATURE DEPENDENT, PTC, 120 ohm, THROUGH HOLE MOUNT, RADIAL LEADED;
| 型号： | 232267191155 |
| 厂家： | 
VISHAY |
| 描述： | RESISTOR, TEMPERATURE DEPENDENT, PTC, 120 ohm, THROUGH HOLE MOUNT, RADIAL LEADED |
| 文件： | 总4页 (文件大小：180K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
2322 671 911..
Vishay BCcomponents
PTC Thermistors, For Temperature Protection
FEATURES
• Well-defined protection temperature levels
• Very fast reaction time
• Accurate resistance for ease of circuit design
• Excellent long term behavior
• Wide range of protection temperatures
• No need to reset supply after overtemperature switch
• Small size and rugged
• Coated leaded and naked devices available.
QUICK REFERENCE DATA
PARAMETER
APPLICATIONS
VALUE
UNIT
• Industrial electronics
• Power supplies
Maximum resistance at 25 °C
120
Ω
Ω
Minimum resistance at
4000
• Electronic data processing
• Motor protection.
(Tn + 15) °C
Maximum (DC) voltage
30
V
Temperature range
Weight:
−20 to (Tn + 15)
°C
DESCRIPTION
91102 to 91114
91152 to 91164
Climatic category
≈0.08
≈0.09
g
g
These directly heated thermistors have a positive
temperature coefficient and are primarily intended for
sensing.
25/125/56
NOMINAL WORKING TEMPERATURES AND ORDERING INFORMATION
NOMINAL WORKING TEMPERATURE
CATALOG NUMBER 2322 671 .....
RESISTANCE from
LEADED DEVICE
COLOR CODE
RESISTANCE
at Tn −5 °C
(Ω)
RESISTANCE
at Tn +5 °C
(kΩ)
Tn
(°C)
−20 °C
to Tn −20 °C
(Ω)
NORMAL
LONG LEADS
LEADS
91102
91103
91104
91105
91106
91107
91109
91112
91114
70
80
30 to 250
30 to 250
30 to 250
30 to 250
30 to 250
30 to 250
30 to 250
30 to 250
30 to 250
50 to 570
50 to 550
50 to 550
50 to 550
50 to 550
50 to 550
50 to 550
50 to 550
50 to 550
0.570 to 50
1.33 to 50
1.33 to 50
1.33 to 50
1.33 to 50
1.33 to 50
1.33 to 50
1.33 to 50
1.33 to 50
91152
91153
91154
91155
91156
91157
91159
91162
91164
black
brown
red
90
100
110
120
130
140
150
orange
yellow
green
blue
violet
grey
www.vishay.com
172
For technical questions contact: nlr.europe@vishay.com
Document Number: 29012
Revision: 18-Aug-04
2322 671 911..
PTC Thermistors, For Temperature Protection
Vishay BCcomponents
ELECTRICAL CHARACTERISTICS
PARAMETER
VALUES
Maximum resistance at 25 °C
Maximum resistance at (Tn − 5) °C
Minimum resistance at (Tn + 15) °C
Minimum resistance at (Tn + 5) °C
Maximum voltage
120 Ω
see Nominal Working Temperatures and Ordering Information table
4000 Ω
see Nominal Working Temperatures and Ordering Information table
30 V (AC or DC)
PACKAGING QUANTITIES AND CATALOG NUMBERS
PACKAGING
CATALOG NUMBERS
2322 ... .....
SPQ
500
500
PQ
5000
5000
671 91102 to 671 91114
671 91152 to 671 91164
COMPONENT OUTLINES
Dimensions in millimeters
3.5 max
3.0 max
7.0 max
0.5 min
2.54
20.0
2
O 0.4
Component outline for 91102 to 91114.
3.5 max
3.0 max
7.0 max
0.5 min
2.54
40.0
min
O 0.4
Component outline for 91152 to 91164.
Document Number: 29012
Revision: 18-Aug-04
For technical questions contact: nlr.europe@vishay.com
www.vishay.com
173
2322 671 911..
Vishay BCcomponents
PTC Thermistors, For Temperature Protection
TYPICAL RESISTANCE/TEMPERATURE
CHARACTERISTIC FOR 2322 671 91102 / 91103
and 91104
TYPICAL RESISTANCE/TEMPERATURE
CHARACTERISTIC FOR 2322 671 91105 / 91106
and 91107
6
6
10
10
1.5 V (DC) max.
1.5 V (DC) max.
R
(Ω)
R
(Ω)
T
T
T
= 100 °C
= 110 °C
= 120 °C
n
n
n
5
4
3
2
5
10
10
10
10
10
10
10
10
4
3
2
T
= 90 °C
n
T
= 80 °C
n
T
= 70 °C
n
10
10
0
50
100
150
200
250
0
50
100
150
200
250
T (°C)
T (°C)
TYPICAL RESISTANCE/TEMPERATURE
CHARACTERISTIC FOR 2322 671 91112 and
91114
TYPICAL RESISTANCE/TEMPERATURE
CHARACTERISTIC FOR 2322 671 91109
6
6
10
10
1.5 V (DC) max.
1.5 V (DC) max.
R
(Ω)
R
(Ω)
5
5
10
10
10
10
10
4
3
2
4
10
3
10
2
10
T
= 150 °C
n
T
= 140 °C
n
T
= 130 °C
n
10
10
0
50
100
150
200
250
0
50
100
150
200
250
T (°C)
T (°C)
www.vishay.com
174
For technical questions contact: nlr.europe@vishay.com
Document Number: 29012
Revision: 18-Aug-04
2322 671 911..
PTC Thermistors, For Temperature Protection
Vishay BCcomponents
APPLICATION SPECIFIC DATA
Negative Temperature Coefficient (NTC) thermistors are well known for temperature sensing. What is not well known, however,
is that Positive Temperature Coefficient (PTC) thermistors can be used for thermal protection. Although their operating principles
are similar, the applications are very different; whereas NTC thermistors sense and measure temperature over a defined range,
PTC thermistors switch at one particular temperature.
Just like thermostats they protect such equipment and components as motors, transformers, power transistors and thyristors
against overtemperature. A PTC thermistor is less expensive than a thermostat, and its switch temperature can be more
accurately specified. It is also smaller and easier to design-in to electronic circuitry.
So how does it work? The PTC thermistor is mounted in thermal contact with the equipment to be protected, and connected into
the bridge arm of a comparator circuit, such as shown in Fig.1. At normal temperature, the PTC thermistor resistance (Rp) is lower
than Rs (see Fig.2), so the comparator's output voltage VO will be low. If an equipment overtemperature occurs, the PTC
thermistor will quickly heat up to its trigger or nominal reference temperature Tn, whereupon its resistance will increase to a value
much higher than Rs, causing VO to switch to a high level sufficient to activate an alarm, relay or power shutdown circuit.
APPLICATION EXAMPLES
V
o
R
R
s
R1
R2
R
R
p
s
L
(R1 = R2)
V
O
R
R
s
p
R
f
(R1 = R2)
θ
PTC
thermistor
R
p
o
trigger
temperature
T ( C)
T
n
Fig.1 .Typical comparator circuit.
Fig.2 Typical switch characteristic.
A
θ
θ
θ
θ
θ
θ
θ
As soon as one or more of the windings becomes too hot, the
motor is switched off.
The PTC thermistors located above the fluid level will be
heated to a temperature greater than Tn.
Fig.3 Temperature protection of electric motors
When immersed they are cooled such that their
resistance value is reduced.
Fig.4 Liquid-level indication.
Document Number: 29012
Revision: 18-Aug-04
For technical questions contact: nlr.europe@vishay.com
www.vishay.com
175
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