820523811B [WURTH]

STANDARD VARISTOR DISC; 标准压敏电阻DISC
820523811B
型号: 820523811B
厂家: WURTH ELEKTRONIK GMBH & CO. KG, GERMANY.    WURTH ELEKTRONIK GMBH & CO. KG, GERMANY.
描述:

STANDARD VARISTOR DISC
标准压敏电阻DISC

压敏电阻
文件: 总6页 (文件大小:153K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
Spezifikation für Freigabe / specification for release  
Kunde / customer :  
820 523 811  
Datum / Date :  
2006-06-29  
Artikelnummer / part number :  
Bezeichnung :  
description :  
STANDARD VARISTOR DISC  
DIAM:  
20  
MM  
ROHS Compliant  
A Elektrische Eigenschaften / electrical properties :  
TECHNICAL DATA  
Working  
Voltage  
Breakdown  
Voltage  
(V@mA) (*1)  
Clamping  
Voltage  
V (*2)  
Current  
Clamp. Volt.  
Peak Current  
Withstanding C.  
A (*3)  
Part Number  
Tolerance  
(%)  
AC  
DC  
505  
(A)  
620  
10  
385  
1025  
100  
6500  
820523811  
* 1 The varistor voltage was measured at 0.1 mA current for 5 mm diameter and 1 mA current for other  
* 2 The Clamping voltage measured at "Current Clamping Voltage" see next column  
* 3 The Peak Current was tested at 8/20 us waveform for 1 time  
Certification  
CSA  
Rated  
Wattage  
(W)  
Diameter  
Part Number  
Energy  
J (*4)  
Capacitance  
pF (*5)  
UL  
(*6)  
VDE  
(*8)  
(*7)  
(mm)  
1.0  
328.0  
600  
yes  
yes  
yes  
20  
820523811  
* 4. The Energy measured at 10/1000 µs waveform for 1 time  
* 5. The capacitance value measured at standard frequency @ 1kHz  
* 6. Certification UL N° XUHT2.E244196  
* 7. Certification CSA N° XUHT8.E244196  
* 8. Certification VDE N° 40016998 & 40016986  
SURGE LEVEL IEC61000-4-5  
Severity Level  
(kV)  
1
2
0,5  
1
2
4
3
4
Special  
X
Wave during  
8/20 µs  
T1  
T2  
10 µs  
10 µs  
10 µs  
1000 µs  
700 µs  
1000 µs  
10/700 µs CCITT  
10/1000 µs  
MARKING CODE  
ORDER CODE  
820  
X
X
XXX  
X
S
Varistor Type  
Serie  
Diameter  
Vrms Voltage  
Code  
Tolerance  
Other  
Special Type  
Lead Diameter  
Lead Pitch  
Lead Style  
Packing  
Disc Varistor  
5 = Standard  
5 = 5 mm  
7 = 7 mm  
1 = 10 mm  
4 = 14 mm  
2 = 20 mm  
5 = 5%  
1 = 10%  
6 = 15%  
2 = 20%  
7 = 25%  
3 = 30%  
See Table  
4 = High Surge  
See Table  
Straight lead  
Ammopack  
with lead 20 mm  
Example:  
180 = 18 V  
271 = 270 V  
102 = 1 000 V  
Würth Elektronik eiSos GmbH & Co.KG - Radialex department  
D-74638 Waldenburg · Max-Eyth-Straße 1 - 3 · Germany · Telefon (+49) (0) 7942 - 945 - 0 · Telefax (+49) (0) 7942 - 945 - 400  
http://www.we-online.com  
PAGE/SEITE 1 - PAGES/VON 6  
Spezifikation für Freigabe / specification for release  
Kunde / customer :  
Artikelnummer / part number :  
820523811  
Bezeichnung :  
description :  
STANDARD VARISTOR DISC  
DIAM:  
20  
MM  
B Mechanische Abmessungen / dimensions :  
SIZE  
Diameter*  
Ø 5  
7,5  
0,6  
5,0  
11  
Ø 7  
9,0  
0,6  
5,0  
13  
Ø 10  
12,5  
0,6/0,8  
5,0/7,5  
18  
Ø 14  
16,5  
0,8/1,0  
7,5/10,0  
22  
Ø 20  
23,0  
0,8/1,0  
7,5/10,0  
28  
D max.  
d +/-0,05  
F +/-1,0  
H max.  
H1 max  
L1 min.  
L min.  
3,5  
25  
3,5  
25  
5,0  
5,0  
5,0  
25  
25  
25  
24  
24  
24  
24  
24  
(mm) - *Disc diameter before epoxy  
Table of T max., A & P1 . Unit : (mm)  
Diameter Ø 5  
Voltage Code T max A+/-0,8 P1  
Ø 7  
Ø 10  
Ø 14  
Ø 20  
T max A+/-0,8 P1  
4,5 1,4 3,0  
4,5 1,5 3,0  
4,7 1,5 3,0  
4,7 1,6 3,0  
4,7 1,8 3,0  
5,0 1,8 3,0  
5,0 2,0 3,0  
5,5 2,3 3,0  
3,8 1,4 3,0  
3,9 1,4 3,0  
4,1 1,5 3,0  
4,5 1,8 3,0  
4,1 1,6 3,0  
4,2 1,6 3,0  
4,3 1,7 3,0  
4,4 1,9 3,0  
4,6 2,0 3,0  
4,8 2,1 3,0  
4,9 2,1 3,0  
5,1 2,5 3,0  
5,3 2,6 3,5  
6,1 2,9 3,5  
6,4 2,9 3,5  
6,6 3,1 4,0  
6,9 3,4 4,0  
7,2 3,7 4,0  
7,5 4,0 4,0  
7,9 4,3 4,0  
8,1 4,5 4,0  
8,3 4,7 4,0  
T max A+/-0,8 P1  
4,9 1,4 3,0  
4,9 1,5 3,0  
5,1 1,5 3,0  
5,1 1,6 3,0  
5,1 1,8 3,0  
5,5 1,8 3,0  
5,5 2,0 3,0  
6,0 2,3 3,0  
4,3 1,4 3,0  
4,4 1,4 3,0  
4,5 1,5 3,0  
4,9 1,8 3,0  
4,5 1,6 3,0  
4,6 1,6 3,0  
4,7 1,7 3,0  
4,8 1,9 3,0  
5,0 2,0 3,0  
5,2 2,2 3,0  
5,3 2,2 3,0  
5,5 2,5 3,0  
5,7 2,8 3,5  
6,5 3,1 3,5  
6,8 3,2 3,5  
7,0 3,7 4,0  
7,3 4,0 4,0  
7,6 4,6 4,0  
8,0 5,0 4,0  
8,4 5,0 4,0  
8,6 5,2 4,0  
8,8 5,2 4,0  
9,4 6,0 4,0  
9,9 6,0 4,0  
10,5 6,3 4,0  
12,6 9,8 6,0  
T max A+/-0,8 P1  
5,0 1,5 3,0  
5,0 1,6 3,0  
5,2 1,7 3,0  
5,2 1,8 3,0  
5,2 2,0 3,0  
5,6 2,0 3,0  
5,6 2,2 3,0  
6,1 2,5 3,0  
4,4 1,6 3,0  
4,5 1,6 3,0  
4,6 1,7 3,0  
5,1 2,0 3,0  
4,7 1,8 3,0  
4,8 1,8 3,0  
4,9 1,9 3,0  
5,0 2,1 3,0  
5,2 2,1 3,0  
5,4 2,3 3,0  
5,5 2,3 3,0  
5,7 2,7 3,0  
5,9 2,8 3,5  
6,7 3,1 3,5  
7,0 3,3 3,5  
7,2 3,7 4,0  
7,5 4,0 4,0  
7,8 4,4 4,0  
8,2 4,7 4,0  
8,6 4,9 4,0  
8,8 5,2 4,0  
9,0 5,2 4,0  
9,6 6,0 4,0  
10,1 6,2 4,0  
10,7 6,7 4,0  
12,8 10,2 6,0  
T max A+/-0,8 P1  
5,2 1,5 3,0  
5,3 1,6 3,0  
5,4 1,7 3,0  
5,4 1,8 3,0  
5,4 2,0 3,0  
5,6 2,0 3,0  
5,6 2,2 3,0  
6,1 2,5 3,0  
4,9 1,8 3,0  
5,1 1,8 3,0  
5,3 1,9 3,0  
5,6 2,2 3,0  
5,2 2,0 3,0  
5,3 2,0 3,0  
5,4 2,1 3,0  
5,5 2,3 3,0  
5,7 2,5 3,0  
5,9 2,7 3,0  
6,0 2,7 3,0  
6,2 2,9 3,0  
6,4 3,0 3,5  
7,2 3,3 3,5  
7,5 3,5 4,0  
7,7 3,9 4,0  
8,0 4,2 4,0  
8,3 4,7 4,0  
8,7 5,0 4,0  
9,1 5,1 4,0  
9,3 5,4 4,0  
9,5 5,4 4,0  
10,1 6,3 4,0  
10,7 6,4 4,0  
11,2 6,9 4,0  
13,5 10,4 6,0  
180  
220  
270  
330  
390  
470  
560  
680  
820  
101  
121  
151  
181  
201  
221  
241  
271  
301  
331  
361  
391  
431  
471  
511  
561  
621  
681  
751  
781  
821  
911  
102  
112  
182  
4,5 1,4 3,0  
4,5 1,5 3,0  
4,7 1,5 3,0  
4,7 1,6 3,0  
4,7 1,8 3,0  
5,0 1,8 3,0  
5,0 2,0 3,0  
5,5 2,3 3,0  
3,8 1,4 3,0  
3,9 1,4 3,0  
4,1 1,5 3,0  
4,5 1,8 3,0  
4,1 1,6 3,0  
4,2 1,6 3,0  
4,3 1,7 3,0  
4,4 1,7 3,0  
4,6 1,9 3,0  
4,8 1,9 3,0  
4,9 1,9 3,0  
5,1 2,4 3,0  
5,3 2,6 3,5  
6,1 2,7 3,5  
6,4 2,8 3,5  
6,6 3,1 4,0  
6,9 3,4 4,0  
7,2 3,7 4,0  
7,5 4,0 4,0  
7,9 4,3 4,0  
Würth Elektronik eiSos GmbH & Co.KG - Radialex department  
D-74638 Waldenburg · Max-Eyth-Straße 1 - 3 · Germany · Telefon (+49) (0) 7942 - 945 - 0 · Telefax (+49) (0) 7942 - 945 - 400  
http://www.we-online.com  
PAGE/SEITE 2 - PAGES/VON 6  
Spezifikation für Freigabe / specification for release  
Kunde / customer :  
Artikelnummer / part number :  
820523811  
Bezeichnung :  
description :  
STANDARD VARISTOR DISC  
DIAM:  
20  
MM  
C Lötpad / soldering spec. :  
MARKING  
Würth Elektronik  
WE-S  
MARKING CODE  
+ or * or c  
Factory Codes  
Characteristic  
X
X
XXX  
X
Serie  
Diameter  
Vrms Voltage  
Code  
Tolerance  
Certification  
UL  
VDE  
CSA  
Date Code  
Year  
X
X
Month  
GENERAL CHARACTERISTICS  
Storage temerature :  
Max. reponse time :  
-40 / +125°C  
25 n sec  
Max. operating temperature :  
Temp. Coefficient of voltage :  
Max. working surface temperature :  
Insulation resistance (at DC 500V) :  
-40 / +125°C  
0 - 0.05% / °C max  
+115°C  
Over 1000 Mohm  
LEAD FREE SOLDERING  
Solder  
Tin 100%  
Soldering temperature at  
Profile soldering  
255°C +/-5 °C  
270°C during 10s  
Würth Elektronik eiSos GmbH & Co.KG - Radialex department  
D-74638 Waldenburg · Max-Eyth-Straße 1 - 3 · Germany · Telefon (+49) (0) 7942 - 945 - 0 · Telefax (+49) (0) 7942 - 945 - 400  
http://www.we-online.com  
PAGE/SEITE 3 - PAGES/VON 6  
Spezifikation für Freigabe / specification for release  
Kunde / customer :  
Artikelnummer / part number :  
820523811  
Bezeichnung :  
description :  
STANDARD VARISTOR DISC  
DIAM:  
20  
MM  
D Rollenspezifikation / tape and reel specification :  
TAPE  
1/2" pitch  
1.0" pitch  
Item  
Ø 5 / 7  
Ø 10  
Ø 10 / 14 / 20  
Ø 14 / 20  
Taping pitch  
1/2"  
1.0"  
l
1,1 mm maxi.  
1,1 mm maxi.  
5 mm maxi.  
16 +/-0,5 mm  
16 à 21 mm  
+/-2 mm  
H1 (type 2)  
3,5 mm maxi.  
5 mm maxi.  
H0 (type 2)  
16 +/-0,5 mm  
H0 (type 1)  
16 à 21 mm  
+/-2 mm  
h
W
W0  
W1  
W2  
F
18 mm +1 / - 0,5 mm  
10 mm  
18 mm +1 / - 0,5 mm  
12 mm  
9 mm +0,75 / -0,5 mm  
3 mm maxi.  
9 mm +0,75 / -0,5 mm  
3 mm maxi.  
5 mm +0,8 / -0,2 mm  
12,7 mm +/-1 mm  
12,7 mm +/-0,3 mm  
3,85 mm +/-0,7 mm  
6,35 mm +/-1,3 mm  
4 mm +/-0,2 mm  
0,6 mm +/-0,05 mm  
See T max. table  
0,7 mm +/-0,05 mm  
1,6 mm maxi.  
7,5 mm +0,8 / -0,2 mm  
10 mm +0,8 / -0,2 mm  
P
25,4 mm +/-1 mm  
P0  
P1  
P2  
D0  
d
12,7 mm +/-0,3 mm  
8,95 mm +/-0,7 mm  
7,7 mm +/-0,7 mm  
12,7 mm +/-1,3 mm  
4 mm +/-0,2 mm  
0,8 mm +/-0,05 mm  
1,0 mm +/-0,05 mm  
T
See T max. table  
0,6 mm +/-0,05 mm  
1,8 mm maxi.  
t1  
t2  
Würth Elektronik eiSos GmbH & Co.KG - Radialex department  
D-74638 Waldenburg · Max-Eyth-Straße 1 - 3 · Germany · Telefon (+49) (0) 7942 - 945 - 0 · Telefax (+49) (0) 7942 - 945 - 400  
http://www.we-online.com  
PAGE/SEITE 4 - PAGES/VON 6  
Spezifikation für Freigabe / specification for release  
Kunde / customer :  
Artikelnummer / part number :  
820523811  
Bezeichnung :  
description :  
STANDARD VARISTOR DISC  
DIAM:  
20  
MM  
D Rollenspezifikation / tape and reel specification :  
REEL DIMENSION  
(Unit : mm)  
Lead Free "LF" Marking  
QUANTITY PER PACKING UNIT  
Diameter  
Ø 5  
Ø 7  
Ø 10  
Ø 14  
Ø 20  
Bulk Reel Ammo  
(Box)  
Bulk Reel Ammo  
(Box)  
Bulk Reel Ammo Ammo  
Bulk Reel Ammo  
(Box)  
Bulk Reel Ammo  
(Box)  
Voltage Serie  
180 à 470  
560 à 680  
820 à 331  
361 à 391  
431 à 471  
511 à 751  
781 à 182  
(Box)  
Pitch 7,5 Pitch 5  
5000 1500 1500  
5000 1500 1500  
5000 1500 1500  
5000 1500 1000  
5000 1500 1000  
4000 1000 1000  
5000 1500 1500  
5000 1500 1500  
5000 1500 1500  
5000 1500 1000  
5000 1000 1000  
4000 1000 1000  
2500 1000 500 1000  
2500 1000 500 1000  
2500 1000 500 1000  
2500 1000 500 1000  
2500 750 500 750  
1500 500 500 500  
1500 500 500 500  
1500 750 500  
1500 750 500  
1500 750 500  
1500 750 500  
1500 750 500  
750 500 500  
750 500 500  
750 500 500  
750 500 500  
750 500 500  
750 500 500  
750 500 500  
450 500 500  
450 500 500  
-
-
-
-
-
-
QUANTITY PER CARTON UNIT  
Packaging  
Bulk (Box)  
Reel  
Reel Ø 14 / 20  
350 x 350 x 74  
370 x 370 x 468  
Ammopack  
330 x 240 x 45  
354 x 515 x 258  
10 boxes  
Ammo Ø 14 / 20  
Box size  
290 x 155 x 110  
310 x 328 x 250  
4 boxes  
350 x 350 x 108  
371 x 371 x 590  
350 x 260 x 65  
365 x 535 x 275  
8 boxes  
Carton size  
One carton with  
Unit:(mm)  
5 boxes (10 reels)  
6 boxes  
Würth Elektronik eiSos GmbH & Co.KG - Radialex department  
D-74638 Waldenburg · Max-Eyth-Straße 1 - 3 · Germany · Telefon (+49) (0) 7942 - 945 - 0 · Telefax (+49) (0) 7942 - 945 - 400  
http://www.we-online.com  
PAGE/SEITE 5 - PAGES/VON 6  
Spezifikation für Freigabe / specification for release  
Kunde / customer :  
820 523 811  
Artikelnummer / part number :  
Bezeichnung :  
description :  
STANDARD VARISTOR DISC  
DIAM:  
20  
MM  
E Testbedingungen / test conditions :  
BASIC TEST AND ENVIRONMENTAL RELIABILITY TEST  
Humidity  
Terminal bending strength  
The specimen shall be subjected to 40+/-2°C, 90 to 95% R.H.  
For 1000 hours without load and then stored at room  
temperature and normal humidity for 1 to 2 hours. Thereafter,  
the change of Vn shall be measured and meet the requirement  
of:  
The unit shall be secured with its terminal kept vertical and the  
weight specified above shall be applied in the axial direction.  
The terminal shall gradually be bent 90° in one direction, then  
90° in the opposite direction, and again back to the original  
position. A bend of lead wire shall be repeated 2 times, with no  
remarkable mechanical damage.  
Vn/Vn± 5%.  
Loading weight in bending strength  
Impulse life  
5N (0.51Kg)  
The impulse current listed on catalog is applied 1000 times  
continuously with the interval of 30 seconds at room  
temperature. The change of Vn shall be measured  
Vn/Vn± 10%  
5N (0.51Kg)  
10N (1.02Kg)  
Vibration  
Subjected to simple harmonic motion of 0.75 mm amplitude 1.5  
mm maximum total excursion between limits of 10-55 Hz.  
Frequency scan shall be traversed in one minute. This motion  
shall then be applied for period of 2 hours in each of three  
mutually perpendicular directions, with no remarkable  
mechanical damage.  
Low temperature  
The specimen shall be subjected to 40 ±2°C without load for  
1000 hours and then stored at room temperature and normal  
humidity for 1 to 2 hours. Thereafter, the change of Vn shall be  
measured and meet the requirement of Vn/Vn ± 5%.  
High temperature load  
Solderability  
After being continuously applied the maximum allowable  
Voltage at 85 ±2°C for 1000 hours, the specimen shall be  
stored at room temperature and humidity for 1 to 2 hours. The  
change of Vn shall be measured and meet the requirement of  
Vn/Vn ± 10%.  
After dipping the terminal to a depth of approximately 3mm from  
the body in a soldering bath of 235 ±5°C for 2 ±0.5 seconds, the  
terminal shall be visually examined. Approximately 95% of the  
terminals shall be covered with new solder uniformly.  
Resistance to soldering heat  
High temperature storage  
The terminal shall be dipped into a soldering bath with  
temperature of 260 ±5°C to a point of 2~2.5 mm from the body  
of the unit, be held there for 10 ±1 sec (5N series: 5 ±1 sec) and  
then be stored at room temperature and humidity for 1 to 2  
hours. The change of Vn shall be measured and meet the  
requirement of Vn/Vn ± 5% with no remarkable mechanical  
damage.  
The specimen shall be subjected to 125 ±1°C for 1000 hours. In  
a drying oven without load stored at room temperature and  
humidity for 1 to 2 hours. The change of Vn shall be measured  
and meet the requirement of Vn/Vn ± 5%.  
Withstanding Voltage  
The specified voltage shall be applied between both terminals  
of the specimen connected together for 1 minute, with no  
remarkable mechanical damage.  
Damp heat load  
The specimen shall be subjected to 40 ±2°C, 90 to 95% R.H.  
and the maximum allowable voltage for 100 hours and then  
stored at room temperature and normally humidity for 1 to 2  
hours. The change of Vn shall be measured and meet the  
requirement of  
Withstanding Voltage (Body Insulation)  
Classification (Nom. varistor voltage)  
V0,1mA - V1mA 330 V  
V0,1mA - V1mA > 330 V  
Test Voltage (AC)  
1 000 Vrms  
1 500 Vrms  
Vn/Vn ± 10%.  
Temperature cycle  
The temperature cycle is repeated fives cycles with  
(1)-40 ±3°C keeping 30 ±3 minutes then (2) room temperature  
keeping 15 ±3 minutes then (3)125 ±2°C keeping 30 ±3 minutes  
then (4) room temperature keeping 15 ±3 minutes and then  
stored at room temperature and humidity for 1 to 2 hours. The  
change of Vn shall be measured and meet requirement  
Vn/Vn ± 5% with no remarkable mechanical damage.  
Terminal pull strength  
After gradually applying the load specified below and keeping  
the unit fixed for 10 ±1 seconds, with no remarkable mechanical  
damage.  
Terminal diameter  
0.6mm (0.024”)  
0.8 mm (0.031”)  
1.0 mm (0.039”)  
Loading weight in pull strength  
10N (1.02Kg)  
10N (1.02Kg)  
20N (2.04Kg)  
Kunde / customer  
Freigabe erteilt /  
general release:  
Datum / date  
Unterschrift / signature  
JP Penlou  
JP Penlou  
New P/N  
2006-06-01  
2006-05-11  
Customer Layout  
Würth Elektronik  
JP Penlou  
JP Penlou  
Name  
Factory codes  
Lead Free Marking  
Änderung / modification  
2005-11-16  
2004-10-19  
Datum / date  
Geprüft / checked  
2006-06-01 Kontrolliert / approved  
JP. Penlou  
Würth Elektronik eiSos GmbH & Co.KG - Radialex department  
D-74638 Waldenburg · Max-Eyth-Straße 1 - 3 · Germany · Telefon (+49) (0) 7942 - 945 - 0 · Telefax (+49) (0) 7942 - 945 - 400  
http://www.we-online.com  
PAGE/SEITE 6 - PAGES/VON 6  

相关型号:

SI9130DB

5- and 3.3-V Step-Down Synchronous Converters

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 211
-
VISHAY

SI9135LG-T1

SMBus Multi-Output Power-Supply Controller

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 211
-
VISHAY

SI9135LG-T1-E3

SMBus Multi-Output Power-Supply Controller

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 211
-
VISHAY

SI9135_11

SMBus Multi-Output Power-Supply Controller

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 211
-
VISHAY

SI9136_11

Multi-Output Power-Supply Controller

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 211
-
VISHAY

SI9130CG-T1-E3

Pin-Programmable Dual Controller - Portable PCs

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 211
-
VISHAY

SI9130LG-T1-E3

Pin-Programmable Dual Controller - Portable PCs

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 211
-
VISHAY

SI9130_11

Pin-Programmable Dual Controller - Portable PCs

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 211
-
VISHAY

SI9137

Multi-Output, Sequence Selectable Power-Supply Controller for Mobile Applications

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 211
-
VISHAY

SI9137DB

Multi-Output, Sequence Selectable Power-Supply Controller for Mobile Applications

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 211
-
VISHAY