VR37
Vishay BCcomponents
www.vishay.com
High Ohmic/High Voltage Metal Glaze Leaded Resistors
FEATURES
• Technology: Metal glaze
• Rmax. = 33 M; Umax. = 3500 VDC
• These resistors meet the safety requirements of:
UL1676 (510 k to 11 M); File No: E171160
IEC 60065, clause 14.1.a)
DIN EN 60065, clause 14.1.a)
VDE 0860, clause 14.1.a)
CQC, China
• High pulse loading capability (10 kV)
• Small size (0309)
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.
• Pure tin plating provides compatibility with lead (Pb)-free
and lead containing soldering processes
• Compliant to RoHS Directive 2002/95/EC
APPLICATIONS
• Where high resistance, high stability and high reliability at
high voltage are required
The encapsulation is resistant to all cleaning solvents in
accordance with IEC 60068-2-45.
• Safety component in combination with high voltage
• White goods
• High humidity environment
• Power supplies
TECHNICAL SPECIFICATIONS
DESCRIPTION
UNIT
VR37
Resistance Range (1)
100K to 33M
Resistance Tolerance
%
1;
5
1 %: E24/E96 series;
5 %: E24 series
Resistance Series
Rated Dissipation, P70
Thermal Resistance (Rth)
Temperature Coefficient
W
0.5
K/W
120
ppm/K
200
Maximum Permissible Voltage Umax.
:
DC
3500
V
V
RMS
2500
700
Dielectric Withstanding Voltage of the Insulation for 1 Min
Basic Specifications
IEC 60115-1
UL1676 (510 k to 11 M); DIN EN 60065, IEC 60065
Safety Requirements
clause 14.1.a); VDE 0860, clause 14.1.a), CQC
Climatic Category (IEC 60068-1)
55/155/56
Max. Resistance Change for Resistance Range, R max., after:
Load (1000 h, P70
)
(1.5 % R + 0.1 )
(1.5 % R + 0.1 )
(1.5 % R + 0.1 )
max. 2.5
Long Term Damp Heat Test (56 Days)
Soldering (10 s, 260 °C)
Noise
μV/V
Note
(1)
Ohmic values (other than resistance range) are available on request
Revision: 17-Aug-11
Document Number: 28733
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