VR37
Vishay BCcomponents
High Ohmic/High Voltage
Metal Glaze Leaded Resistors
FEATURES
• Rmax. = 33 MΩ; Umax. = 3500 VDC
• These resistors meet the safety requirements of:
UL1676 (510 kΩ to 11 MΩ); 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)
• Pure tin plating provides compatibility with lead (Pb)-free
and lead containing soldering processes
• Compliant to RoHS directive 2002/95/EC
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.
APPLICATIONS
• Where high resistance, high stability and high reliability at
high voltage are required
• Safety component in combination with high voltage
• White goods
The encapsulation is resistant to all cleaning solvents in
accordance with IEC 60068-2-45.
• High humidity environment
• Power supplies
TECHNICAL SPECIFICATIONS
DESCRIPTION
VALUE
Resistance Range (1)
100 kΩ to 33 MΩ
1 %: E24/E96 series;
5 %: E24 series
Resistance Tolerance and Series
Rated Dissipation, P70
Thermal Resistance, Rth
Temperature Coefficient
0.5 W
120 K/W
≤
200 ppm/K
Maximum Permissible Voltage Umax.
:
DC
3500 V
2500 V
700 V
RMS
Dielectric Withstanding Voltage of the Insulation for 1 Min
Basic Specifications
IEC 60115-1
UL1676 (510 kΩ to 11 MΩ); DIN EN 60065, IEC 60065, clause 14.1.a);
Safety Requirements
VDE 0860, clause 14.1.a), CQC
Climatic Category (IEC 60068-1)
Stability After:
55/155/56
Load (1000 h, P70
)
ΔR max.: (1.5 % R + 0.1 Ω)
ΔR max.: (1.5 % R + 0.1 Ω)
ΔR max.: (1.5 % R + 0.1 Ω)
max. 2.5 µV/V
Long Term Damp Heat Test (56 Days)
Soldering (10 s, 260 °C)
Noise
Note
(1) Ohmic values (other than resistance range) are available upon request
www.vishay.com
202
For technical questions, contact: filmresistorsleaded@vishay.com
Document Number: 28733
Revision: 12-Oct-09