High Voltage Hermetic Hi-Meg Resistors (RH1)

High Voltage Hermetic Hi-Meg Resistors (RH1)

Hermetic Resistors Lead to a High Ohmic Resistance Values.

Direct Hi-Meg Hermetically Sealed Resistors are designed for use in electrometer circuits where a high order of performance is required an extended period of time under adverse environmental conditions.

The RH1 metal glaze resistor is disclosed as being encapsulated in a glass tube, the enclosure being hermetically sealed to conductive caps mounted on the resistor ends. The metal glaze film of the resistance path of the resistor is protected from thermal damage during heat sealing by spacing the resistance path from the conductive caps and providing an electrical path there between in the form of an extended termination.

By being vacuum sealed in a glass envelope with its resistance glaze glass characteristic, these high resistance resistors are suitable for ultra-high vacuum applications, micro current circuit measurement, and pulse load equipments.

These RH1 Series features a high degree of stability and accuracy, and operate at this high performance level for long-term stability.

For customed designs, tighter tolerances, non-standard technical requirements, or custom special applications,
please contact our sales for more information.

Download complete PDF High Voltage Hermetic Hi-Meg Resistors (RH1).

Features :
  1. High Resistance Range 1 × 107 ~ 1 × 1012(Ω)
  2. Resistance Tolerance (J±5%) (K±10%)
  3. Glass vacuum sealed hermetic resistors
  4. Stability temperature and voltage
  5. Metal Glaze resistive elements
Applications :
  1. Ultra-High Vacuum Applications
  2. Surge Protection and Voltage Divider
  3. Mains Protection and Discharge Path Resistor
  4. Current Pulse Limiters and Pulse Load Equipments
  5. Micro Current Circuit Measurement, Medical Instrumentation
Dimensions (Unit: mm) (RH1)
Hermetic High Resistance High-Megohm Resistors (RH1) Dimensions
Hermetic High Resistance High-Megohm Resistors (RH1) Dimensions
Specifications (RH1)
Resistance Range 1 × 107 ~ 1 × 1012(Ω)
Resistance Tolerance (J±5%) (K±10%)
Operating Temperature -55°C ~ +125°C
Temperature Coefficient ±500PPM/°C (-55 ~ +125°C)
Damp Heat ΔR ≤ ± (5%R+0.1Ω)
Working Voltage 1000V
Rated Power 1/2 W

Cleaning & Handling (RH1)

Hermetic High-Megohm Resistor Cleaning & Handling

  1. It should be handled by the leads, unless gloves are worn.

  2. If cleaning should become necessary, use isopropyl alcohol and lightly wipe dry with lint free tissues.

  3. These glass encapsulated (hermetic) resistors with high resistance value is required extraordinary cleanliness.

  4. Fingerprints on the surface of the resistor will attract contaminants and moisture, which will cause a parallel resistance path, reducing the resistance value of the device.
Order Codes (RH1)
RH1 1T J
Part Number
Resistance Value (Ω)
1T 1TΩ
10T 10TΩ
100T 100TΩ
Resistance Tolerance (%)
J ±5%
K ±10%