B57238S0259L002 [EPCOS]
Insulation Voltage 1000 VDC for 1 s, RN/RN = 15 %; 绝缘电压1000 VDC 1秒， RN / RN = 15 ％
| 型号： | B57238S0259L002 |
| 厂家： | 
EPCOS |
| 描述： | Insulation Voltage 1000 VDC for 1 s, RN/RN = 15 % |
| 文件： | 总3页 (文件大小：64K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Inrush Current Limiters
B57238
S 238
Insulation Voltage 1000 VDC for 1 s, ∆RN/RN
=
15 %
Applications
17 max.
7 max.
I Switch-mode power supplies
I Soft-start motors, e.g. in vacuum cleaners
Features
I Close resistance tolerance,
improved insulation voltage
ø1
I Useable in series connections up to 265 Vrms
I Coated thermistor disk
7,5
I Kinked leads of tinned copper wire
I Wide resistance range
TNT0293-3
I UL approval (E69802)
Dimensions in mm
Approx. weight 3 g
Delivery mode
Bulk (standard),
cardboard tape, reeled or in Ammo pack
Climatic category (IEC 60068-1)
55/170/56
3,9
15 %
25
3 %
approx. 20
approx. 80
approx. 1600
1000
Max. power at 25 °C
Resistance tolerance
Rated temperature
Pmax
∆RN/RN
TN
∆B/B
δth
τc
Cth
VT
W
°C
B value tolerance
Dissipation factor (in air)
Thermal cooling time constant (in air)
Heat capacity
mW/K
s
mJ/K
VDC
Test voltage (t = 1 s)
1)
1)
R25
Imax
No. of
B25/100 CT
CT
Parameters for
Ordering code
(0 … 65 °C) R/T char-
230 V 110 V R(I)1)
Ω
A
acteristic
K
µF
µF
k
n
2,5
3,0
5,0
8,4
7,4
6,4
1202
1203
1207
2800
2900
2965
700
700
700
2800 0,98
2800 1,04
2800 1,23
– 1,36
– 1,36
– 1,37
B57238S0259L002
B57238S0309L002
B57238S0509L002
1) For details on the capacitance CT as well as on the parameters k and n refer to “Application Notes”, pages 40–42.
140 05/02
Inrush Current Limiters
B57238
S 238
Insulation Voltage 1000 VDC for 1 s, ∆RN/RN
=
15 %
Reliability data
Test
Standard
Test conditions
∆R25/R25
Remarks
(typical)
Storage in
dry heat
IEC
60068-2-2
Storage at upper
category temperature
T: 170 °C
< 10 %
No visible
damage
t: 1000 h
Storage in damp
heat, steady state
IEC
60068-2-3
Temperature of air: 40 °C
Relative humidity of air: 93 %
Duration: 21 days
< 5 %
No visible
damage
Rapid temperature IEC
Lower test temperature: – 55 °C < 10 %
No visible
damage
cycling
60068-2-14 Upper test temperature: 170 °C
Number of cycles: 10
Endurance
I = Imax
t: 1000 h
< 10 %
< 10 %
No visible
damage
Cyclic
endurance
I = Imax, 1000 cycles
On-time = 1 min
No visible
damage
Cooling time = 6 min
Transient
load
Capacitance = CT
Number of cycles: 1000
< 5 %
No visible
damage
141 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-
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zuholen.
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.
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