High Voltage Axial Resistors (HVA Series)

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Printable PDF version of datasheet

Advantages

Our patented Micropen® precision printing technology provides superior precision, thick-film resistors. Ohmcraft’s Micropenned resistors produce superior electrical characteristics including:

Ultra High Stability	Very Low Noise	TCR to 50 ppm/°C
Voltage Ratings to 50kV	Tolerances to 0.1%	VCR to 0.1 ppm/V
Non-Inductive	Resistance values to 50 GΩs	Custom Configurations

Electrical Specifications

The continuous maximum applied voltage cannot exceed the maximum power rating and is resistance value dependent.
For resistance values below 100 KΩs or for custom case sizes, consult factory.

How to Order

HVA

Type

Lead Style

Case Size

TCR

Value

Tolerance

Coating

Precision
High-Voltage Axial Resistor

G	Solderable Gold/Nickel Plated Copper, RoHS

±50ppm/°C

±100ppm/°C

±200ppm/°C

Resistance value expressed as a four digit number—where the first three numbers are the significant value, and the fourth number is the number of zeroes.

B	±0.1%
C	±0.25%
D	±0.5%
F	±1%
G	±2%
J	±5%
K	±10%
L	±20%

1	High Temperature Conformal Silicone

Resistor Dimensions

For custom case sizes, consult factory.

Typical Performance Characteristics

Test	Specification
Short Time Overload/Overvoltage	ΔR 0.5% max.
Thermal Shock	ΔR 0.25% max.
Shock and Vibration	ΔR 0.5% max.
Load Life (1000 Hours)	ΔR 0.5% max.
Insulation Resistance	10,000 Megohms min.

Parameter	Typical
Operating Temperature	-55°C to 225°C
Temperature Coefficient	Measured from 25°C to 75°C
Resistance Value	Values > 10M are measured at 100 VDC For custom test voltages consult factory

Material Construction

Power Derating Curve

Substrate	Alumina
Coating	High Temperature Silicone Conformal
End Caps	Stainless Steel
Leads	Solderable Gold and Nickel Plated Copper

Custom Configurations Available Upon Request

Please consult with our knowledgeable sales staff for help specifying custom parts to meet your needs.