B57020M2502A017 [EPCOS]
Probe Assemblies; 探头组件
| 型号： | B57020M2502A017 |
| 厂家： | 
EPCOS |
| 描述： | Probe Assemblies |
| 文件： | 总3页 (文件大小：61K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Temperature Measurement
Probe Assemblies
B57020
M 2020
Applications
8
I Refrigerators
I Deep freezers
4,5
Features
I Thermistor in molded plastic case
I PVC-insulated connecting cable (white), Tmax = 105 °C
I Conductor cross section: 2 × 0,34 mm2
I Construction based
on DIN EN 60 730-1/VDE protection class 2
Options
Alternative resistance ratings,
rated temperatures,
resistance tolerance and cable lengths
available on request
Delivery mode
Bulk
Dimensions
in mm
TNT0350-Q
Climatic category (IEC 60068-1)
40/80/56
350
2 %
Max. power at 25 °C
Resistance tolerance
Rated temperature
P25
∆RN/RN
TN
mW
0
°C
B value tolerance
∆B/B
δth
τa
1,5 %
Dissipation factor (in air)
Thermal time constant (in water)
Insulation resistance
approx. 10
approx. 35
> 1000
mW/K
s
MΩ
Ris
R25
R0
No. of R/T
B25/100
Ordering code
characteristic
Ω
Ω
K
5000
16330
2003
3980
B57020M2502A017
120 05/02
Temperature Measurement
Probe Assemblies
B57020
M 2020
Reliability data
Test
Standard
Test conditions
∆R25/R25 Remarks
(typical)
Storage in
dry heat
IEC
60068-2-2
Storage at upper
category temperature
T: 80 °C
< 2 %
No visible
damage
t: 1000 h
Storage in
coldness
Storage at lower
category temperature
T: – 40 °C
< 2 %
No visible
damage
t: 1000 h
Storage in damp
heat, steady state 60068-2-3
IEC
Temperature of air: 40 °C
Relative humidity of air: 93 %
Duration: 56 days
< 2 %
< 2 %
No visible
damage
Rapid temperature IEC
cycling
Lower test temperature: – 40 °C
No visible
damage
60068-2-14 Upper test temperature: 80 °C
Time to change from lower to upper
temperature: < 30 s;
Number of cycles: 1000
Medium: air
Storage in
water
Temperature of water: 30 °C
t: 4000 h
Applied voltage with drop resistor
10 kΩ:10 Vdc switched between
on (ton = 30 min) and off (toff = 30 min)
< 2 %
< 2 %
No visible
damage
Temperature
cycling test
Lower test temperature: – 30 °C
Upper test temperature: 10 °C
Test frequency < 15 min under
wetness and frozen water
Number of cycles: 50000
Medium: air
No visible
damage
Voltage
proof test
3750 V; 1 min
No flash-
over
Insulation
test
The sensors are placed in a vessel
containing metallic balls of 1 mm
diameter (with total immersed head).
Above
1000 MΩ
The applied voltage is 500 Vdc
.
121 05/02
Herausgegeben von EPCOS AG
Unternehmenskommunikation, Postfach 80 17 09, 81617 München, DEUTSCHLAND
++49 89 636 09, FAX (0 89) 636-2 26 89
EPCOS AG 2002. Vervielfältigung, Veröffentlichung, Verbreitung und Verwertung dieser Broschüre und ihres Inhalts ohne aus-
drückliche Genehmigung der EPCOS AG nicht gestattet.
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troindustrie, soweit nichts anderes vereinbart wird.
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Published by EPCOS AG
Corporate Communications, P.O. Box 80 17 09, 81617 Munich, GERMANY
++49 89 636 09, FAX (0 89) 636-2 26 89
EPCOS AG 2002. Reproduction, publication and dissemination of this brochure and the information contained therein without
EPCOS’ prior express consent is prohibited.
Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and Electronics
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This brochure replaces the previous edition.
For questions on technology, prices and delivery please contact the Sales Offices of EPCOS AG or the international Representa-
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