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MS11394929-1905
www.vishay.com
© 2019 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED.
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HigH Voltage SMD ReSiStoRS
Today, various industrial and automotive applications operate at high voltages, which are significantly larger than the
permissible operating voltage of a single SMD resistor. Thus, multiple resistors are typically used in series to distribute the
voltage load. This workaround becomes unnecessary with the use of high voltage resistors, which combine a high operating
voltage rating with a low voltage coefficient.
Operating Voltage — The significantly increased operating voltage allows up to five standard components to be replaced
by a single high voltage resistor of the same case size. Besides component count reduction, board space will be saved and
placement costs reduced. Since the voltage rating even exceeds that of standard components in the next case size, board
space savings can also be achieved by 1:1 replacement with a smaller component.
Voltage Coefficient — The voltage coefficient of resistance (VCR) indicates
the resistor’s permissible change of resistance, depending on the operating
voltage. Hence, using high voltage resistors at the allowed elevated voltage
levels may cause a significant resistance change. Thus, high precision
applications will benefit from thin film resistors, which feature an especially
low VCR of ≤ 2 ppm/V.
TNPV e3 — TNPV e3 high voltage thin film flat chip resistors combine high voltage ratings with thin film technology advantages:
tight tolerance, low temperature coefficient, and excellent long term stability.
MM HV — MM HV thin film MELF resistors combine high voltage ratings with robust cylindrical designs, allowing for high
power ratings and pulse load capability.
RCV e3 — RCV e3 thick film chip resistors combine the properties of standard thick film resistors with high voltage ratings.
TNPV e3, MM HV, and RCV e3 high voltage resistors are the optimum choice for applications that involve high voltages:
• Battery management
• Inverters for electric and hybrid electric vehicles
• DC/DC and AC/DC converters
• High voltage measurement
• High voltage power supplies
Operating Voltage
TNPV e3
Standard
chip
resistor
1000 V
400 V
0805
800 V
RCV e3
Chip Resistors
600 V
200 V
1206 1210
87 %
less
Standard 2512
High voltage
1206
1:1 Replacement
MM HV
MELF Resistors
Operating Voltage
1000 V
400 V
0204
800 V
600 V
200 V
0207
Standard
MELF
resistor
250 V 1000 V750 V500 V
Resistance Change
5 %
2 %
4 %
Inuence of Voltage Coefcient
3 %
1 %
Standard
high voltage
thick lm
TNPV e3
MM HV
RCV e3