VR25, VR37, VR68
Vishay BCcomponents
www.vishay.com
High Ohmic / High Voltage Metal Glaze Leaded Resistors
FEATURES
• UL Approved (UL1676, file no: E171160)
• Meet the safety requirements of:
- IEC 60065
- DIN EN 60065
- VDE 0860
- CQC (China)
• AEC-Q200 qualified (VR25, VR37)
• High pulse loading capability (maximum 10 kV)
• Radial version available for VR25
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
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DESIGN SUPPORT TOOLS
APPLICATIONS
Models
Available
• Where high resistance, high stability, and high reliability at
high voltage are required
A metal glazed film is deposited on a high grade ceramic
body. After a helical groove has been cut in the resistive
layer, tinned electrolytic copper wires are welded to the
end-caps. The resistors are coated with a light blue lacquer
which provides electrical, mechanical, and climatic
protection.
• High humidity environment
• White goods
• Power supplies
• Automotive electronics
TECHNICAL SPECIFICATIONS
DESCRIPTION
VR25
0207
VR37
VR68
0718
Imperial size
0309
Resistance range (1)
100 k to 22 M
100 k to 33 M
10 %; 5 %; 1 %
100 k to 68 M
Resistance tolerance
Temperature coefficient
Rated dissipation, P70
Operating voltage, Umax. AC/DC
Operating temperature range
Peak permissible film temperature
Thermal resistance (Rth)
Insulation voltage:
200 ppm/K
0.5 W
0.25 W
1600 V
1.0 W
3500 V
10 000 V
-55 °C to +155 °C
155 °C
140 K/W
120 K/W
70 K/W
1 min.; Uins
700 V
Maximum noise (white noise)
5 μV/V
1.5 %
2.5 μV/V
2.5 μV/V
1.5 %
Max. resistance change at
rated dissipation for resistance range,
|R/R| max., after 1000 h
1.5 %
Note
(1)
Ohmic values (other than resistance range) are available on request
SAFETY REQUIREMENTS AND QUALIFICATIONS
DESCRIPTION
VR25, VR37
VR37
VR68
UL1676 qualification (file no: E171160)
for ohmic range 510 k to 11 M;
DIN EN 60065 (VDE 0860): 2015; clause 14.2 a);
EN 60065: 2014
Safety requirements / qualifications
AEC-Q200
IEC 60065: clause 14.2 a)
CQC
Revision: 21-Sep-2018
Document Number: 28907
1
For technical questions, contact: filmresistorsleaded@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