PTC307C1674P [VISHAY]
Thermistors Motor Start Pellets;
| 型号： | PTC307C1674P |
| 厂家： | 
VISHAY |
| 描述： | Thermistors Motor Start Pellets 电动机起动 电阻器 |
| 文件： | 总3页 (文件大小：428K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PTC307C Series
www.vishay.com
Vishay Cera-Mite
PTC Thermistors Motor Start Pellets
FEATURES
• Rugged silver electrodes well suited for long life
OEM pressure contact mounting
• Various pellet sizes for optimum inrush current
and switching time
• Withstanding voltage is 2 times the maximum voltage
rating
• UL approved pellets
• Material categorization: For definitions of compliance
please see www.vishay.com/doc?99912
APPLICATIONS
• Single Phase motorstart assist in
• Refrigerator systems
• Airconditioning systems
• Heat-pumps
QUICK REFERENCE DATA
• Small compressors
• Inrush current generation
PARAMETER
VALUE
3.3 to 75
30
UNIT
Ω
DESCRIPTION
Resistance value at 25 °C
Tolerance on resistance value
Current ratings
These directly heated thermistors have
a
positive
%
temperature coefficient and are primarily intended for inrush
current generation. They consist of a high grade ceramic
disk with two rugged pattern silver electrodes for contact
pressure mounting. These ceramic pellets can be build into
proprietary motor start devices for compressor, refrigerator
and HVAC OEMs.
4 to 16
ARMS
s
Switching times (typical)
Maximum voltage rating
Operating temperature range
0.25 to 1.0
160 to 450
-10 to +85
VRMS
°C
MOUNTING
The PTC thermistor pellets are suitable for pressure contact
mounting in application specific housing assemblies.
Examples of such assemblies can be found in the PTC305C
series. Assembly housing must be appropriate for usage up
to 180 °C surface temperature of the PTC pellets.
Storage temperature range
-25 to +105
°C
The pellets are not solderable.
MARKING
The pellets are not marked. Marking is available on request
for customized parts.
SAFETY AGENCY RECOGNITION
Vishay Cera-Mite motor start PTC pellet thermistors are
recognized by Underwriter Laboratories file E148885 in
accordance with Standard for Thermistor Type Devices
UL 1434; and Canadian Standards C22.2 No. 0-1991.
Revision: 11-Aug-10
Document Number: 22998
1
For technical questions, contact: ceramitesupport@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
PTC307C Series
www.vishay.com
Vishay Cera-Mite
ELECTRICAL DATA AND ORDERING INFORMATION
(1)
R25
Vmeas.
MAX.
MAX.
SIZE
Ø x T
(mm)
(2)
RDYN
TSWITCH
PART NUMBER
30 %
RDYN
VOLTAGE (3) CURRENT
UL (4)
(Ω)
(°C)
(Ω)
5.0
6.8
10
5.0
6.8
10
20
3.3
4.7
5.6
6.8
10
12
15
22
33
47
68
3.9
12
14
30
30
38
50
75
(VRMS
120
120
120
120
120
120
120
120
120
120
120
120
120
120
120
120
120
120
50
)
(VRMS
200
200
200
180
200
200
320
160
180
180
200
230
250
300
400
355
400
430
175
350
320
380
450
400
400
400
)
(ARMS
10
10
10
12
10
10
8
)
PTC307C1674P
PTC307C1700P
PTC307C1711P
PTC307C1668P
PTC307C1644P
PTC307C1651P
PTC307C1720P
PTC307C1411P
PTC307C1484P
PTC307C1544P
PTC307C1399P
PTC307C1489P
PTC307C1476P
PTC307C1530P
PTC307C1531P
PTC307C1282P
PTC307C1533P
PTC307C1292P
PTC307C1487P
PTC307C1529P
PTC307C1545P
PTC307C1640P
PTC307C1740P
PTC307C1024P
PTC307C1409P
PTC307C1410P
4.0
5.0
7.2
4.0
5.0
7.2
13
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
105
105
105
120
120
120
120
120
120
120
120
120
120
120
120
120
120
120
120
120
120
120
120
120
120
120
16 + 0.2/- 0.4
x 2.5 0.25
17.5 0.3
x 2.5 0.25
2.6
3.5
4.1
5.0
7.2
8.5
12
12
12
10
9
20 + 0.2/- 0.8
x 2.5 0.25
8.5
8
10.5
15
8
22
6
30
5
42
4
3.0
10.3
12
16
8
100
100
240
240
240
240
240
20 + 0.2/- 0.8
x 3.2 0.25
8
15.9
15.9
25
12
7
9
20 + 0.2/- 0.8
x 5.0 0.25
35
7.5
5.5
50
Notes
•
•
•
R
R
25 = zero power resistance measured at < 0.5 VDC, standard tolerance 30 %, other tolerances and values on request
DYN = nominal dynamic resistance during inrush, measured with Vmeas. applied, for information only
The maximum voltage is the voltage that appears across the PTC in a motor start application. This is not the applied line voltage.
Withstanding voltage of all UL approved types is minimum twice the specified maximum operating voltage.
UL recoginition following XGPU2 category of standard UL1434, file E148885
•
TYPICAL PTC CURRENT VS. TIME SHOWING DEFINITION OF RDYN AND SWITCH TIME (t)
Current
h x V x (Tswitch - T0)
I2PTC x RDYN
= Specific heatcapacity = 2.3 J/Kcm3
T0 = PTC temp. at time 0
= PTC volume in cm3 (D/2)2Tπ
Peak current
10 000
1000
100
10.0
1.0
Switch time t ≈
h
Vmeas.
RDYN
=
I
PTC max.
V
Switch time (t)
0.1
20 % peak current
Switch time (t)
Resistance
10
0.01
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
50
100
150
Motor contactor
Time to Switch (s) PTC switchout
PTC Temperature °C
closes
Solid ceramic disc
Base electrode
Silver electrode
D
T
Revision: 11-Aug-10
Document Number: 22998
2
For technical questions, contact: ceramitesupport@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
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www.vishay.com
Vishay
Disclaimer
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Revision: 08-Feb-17
Document Number: 91000
1
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