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Precision High Voltage Resistors (RI82) 系列

Precision High Voltage Resistors (RI82)

(RI82) An Excellent Solution for The High Voltage Trend in Power Impulse Precision Products.

The High Voltage RI82 Precision Series provides an excellent solution for design engineers looking for a compact product with high-voltage capabilities to enable them to design within the voltage trend for power impulse products.

The RI82 resistors use DeMint's proprietary thick film Metal Glaze resistive element and Serpentine Pattern Design which provides ideal cost efficient, stability, precision, non-Inductive, and high voltage characteristics for a wide range of measurement, voltage divider circuits, and control functions in high voltage power electronics applications.

By utilizing specific 96 % pure alumina materials with optimum processing, DeMint are able to control, very tightly in manufacturing, the important ultra-stable performance tolerance F(±1%), G(±2%), J(±5%), K(±10%), and M(±20%). Voltage handle up to 30 KV. This unique process is offered in specific resistance values in a wide variety of sizes and terminations. The extraordinary operating stability of the Type RI82 resistors will improve the performance of your high voltage system in precision.

The Precision RI82 High Voltage Series is 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.

Download complete PDF Precision High Voltage Resistors (RI82).

Mechanical Specifications :
  1. Resistive Element: Thick film
  2. Substrate: 96 % pure alumina
  3. Encapsulation: Epoxy base, conformal coating (c style only)
  4. Terminals: Silver palladium pole, tin plated copper leads
Applications :
  1. X-ray/imaging equipment, Impulse voltage generators,
  2. Capacitor crowbar circuits, High voltage snubber circuits, Arc furnace damping,
  3. Pulse modulators, Radar Pulse-forming networks, Energy research, and EMI/lightning supression.
  4. Applications include power supplies, transformers and any application requiring operation within an environment where high voltages are used.
Features :
  1. Rated Wattage from 0.1W to 30W
  2. Max Working Voltage from 2KV to 30KV.
  3. Designs built from customer supplied schematics
  4. Tough epoxy-based coating and high voltage stability
  5. Temperature Coefficient: 200 ppm/°C to 300 ppm/°C.
  6. Resistance Range from 10 Megohm to 100K Megohms (100 Gegaohms).
  7. Resistance Tolerance F(±1%), G(±2%), J(±5%), K(±10%), and M(±20%).
  8. Stable cermet resistive element bonded to a high-purity alumina substrate.
Chip Type General Specifications (Unit:mm) (RI82)
A Style Dimensions - High Voltage Chip Resistor (RI82)
A Style Dimensions - High Voltage Chip Resistor (RI82)
① Silver Palladium Pole
② Resistent Film
③ Insulation Coating
④ 96%A1023 Ceramic Base
Part
Number		 Rated
Wattage (w) 		Style Dimensions (Unit:mm) Resistance
Range (Ω)		 Temp Coefficient
(10-6/ °C)		 Resistance
Tolerance		 Max Working
Voltage (KV)
Lmax Smax Hmax I dmax
RI82-2 2 a 33 8 0.8     10M-1T ≤200 J(±5%)
K(±10%)
M(±20%)		 15
RI82-2 2 a 25 10 0.8    
Remark: Rated continuous Working Voltage (RCWV) shall be determined from RCWV = √ Power Rating × Resistance Value (Ω)
Dip Type General Specification (Unit:mm) (RI82)
B & C Style Dimensions - High Voltage Dip Type (RI82)
B & C Style Dimensions - High Voltage Dip Type (RI82)
① Silver Palladium Pole
② Resistent Film
③ Insulation Coating (c style only)
④ 96%A1023 Ceramic Base
Part
Number		 Rated
Wattage (w)		 Dimensions (Unit:mm) Resistance
Range (Ω)		 Temp Coefficient
(10-6/°C)		 Max Working
Voltage(KV)		 Resistance
Tolerance
L ± 2 S ± 2 H max I d ± 0.1
RI82-0.125 0.125 8 3.5 2.5 20.0min 0.56 100M-4.7G 1R ≤ R < 1G,(±100PPM)

1G ≤ R < 10G,(±200PPM)

10G ≤ R < 100G,(±300PPM)

100G ≤ R ≤ 1T,(±500PPM) 		4 F(±1%)
G(±2%)
J(±5%)
K(±10%)
M(±20%)
RI82-0.125 0.125 10 5 2.5 24.0min 0.56 100M-10G 4
RI82-0.25S 0.25S 10 5 2.5 20.0min 0.56 10M-1T 4
RI82-0.25 0.25 22 4 2.5 20.0min 0.56 100M-10G 4
RI82-0.25 0.25 25 5 2.5 20.0min 0.56 100M-10G 10
RI82-0.5 0.5 35 5 2.5 24.0max 0.56 100M-10G 15
RI82-0.5 0.5 41 5 2.5 42.0max 0.56 10M-1T 4
RI82-1 1 25 10 2.5 30.0max 0.56 100M-10G 15
RI82-1 1 30 8 2.5 30.0max 0.8 100M-10G 15
RI82-1 1 33 8 2.5 35.0max 0.56 100M-10G 15
RI82-1 1 38 10 3 45.0max 0.80 100M-1T 20
RI82-2 2 38 10 3 40.0max 0.80 100M-1T 20
RI82-2 2 45 10 3 45.0max 0.80 100M-10G 20
RI82-3 3 50 10 3 45.0max 0.80 100M-1T 20
RI82-3 3 30 15 3 35.0max 0.80 100M-10G 25
RI82-3 3 60 10 3 55.0max 0.80 100M-1T 25
RI82-5 5 80 20 4 60.0max 0.80 100M-200M 25
RI82-10 10 97 23 4 80.0max 0.80 100M-200M 30
RI82-20 20 100 35 4 80.0max 1 100M-200M 30
RI82-30 30 100 48 4 80.0max 1 100M-200M 30
Remark: Rated Continus Working Voltage (RCWW) shall be determined from RCWW = √ Power Rating × Resistance Value (Ω)
or Max.Working Voltage listed above , whichever two.

Advance Technique of Non-Inductive & Serpentine Pattern (RI82)

Non-Inductive Performance:

  1. DeMint's RI82 Non-Inductive Design which uses a serpentine resistive pattern that offers for zigzagging lines to carry current in opposite directions, thereby neutralizing maximum of flux fields over the entire length of the resistor.

  2. This efficient non-inductive construction retains performance advantages and heavy load characteristics which is ideal for high frequency applications.

Serpentine Pattern Screen Printing Design:

  1. Type RI82 High Voltage Impulse Resistors combine DeMint's Non-Inductive serpentine pattern, high thru-put screen printed silicone coating.

  2. The alignment of the gap in the serpentine resistor pattern with the gap in the coating pattern provides a complete encapsulation of the resistor element.

  3. The lead assemblies are pressed onto the resistor core, finishing the resistor and providing rugged terminal attachment.
Order Codes (RI82)
RI82 0.125W c 47M K
Part Number
RI82
Rated Power (W)
0.125W
0.25W
0.5W
1W
Style
a Style
b Style
c Style
Resistance Value (Ω)
4M7 4.7MΩ
47M 47MΩ
47M5 47.5MΩ
470M 470MΩ
Resistance Tolerance (%)
F ±1%
G ±2%
J ±5%
K ±10%
M ±20%