TOKEN
RH1 Hi-Meg Hermetic Resistors
High Resistance
Hi-Meg Hermetic
Resistors
Hermetic Lead to a High Ohmic Resistance Values
Preview
Token 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. The Hi-Meg Hermetic RH1 Series conform to RoHS compliant and lead free.
For customed designs, tighter tolerances, non-standard technical requirements, or custom special applications,
please contact our sales for more information.
Features
- Metal Glaze resistive elements
- Stability temperature and voltage
- Glass vacuum sealed hermetic resistors
- Resistance Tolerance (J±5%) (K±10%)
- High Resistance Range 1 × 107 ~ 1 × 1012(Ω)
Applications
- Ultra-High Vacuum Applications
- Surge Protection and Voltage Divider
- Mains Protection and Discharge Path Resistor
- Current Pulse Limiters and Pulse Load Equipments
- Micro Current Circuit Measurement, Medical Instrumentation
Version 2010
http://www.token.com.tw/
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TOKEN
Dimensions (Unit: mm)
Φ4.8
± 0.4
RH1 Hi-Meg Hermetic Resistors
27 ± 3
50
+10
-5
27 ± 3
Specifications
Resistance Range
Resistance Tolerance
Operating Temperature
Temperature Coefficient
Damp Heat
Working Voltage
Cleaning & Handling
1 × 10
7
~ 1 × 10
12
(Ω)
(J±5%) (K±10%)
-55°C ~ +125°C
±500PPM/°C (-55 ~ +125°C)
ΔR ≤ ± (5%R+0.1Ω)
1000V
Hermetic Hi-Meg Resistors Cleaning & Handling
● It should be handled by the leads, unless gloves are worn.
● If cleaning should become necessary, use isopropyl alcohol and lightly wipe dry with lint free tissues.
● These glass encapsulated (hermetic) resistors with high resistance value is required extraordinary
cleanliness.
● 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.
How to Order
RH1
Part Number: RH1
Resistance Value (Ω)
Code
1T
1T
J
Resistance Tolerance (%)
Code
Resistance Tolerance
Resistance Value (Ω)
10T
100T
1TΩ
10TΩ
100TΩ
J
K
±5%
±10%
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Φ0.5
± 0.05
Version 2010
