GENERAL

   
 

The RT / RL series of non inductive, ceramic composite resistors are ideal for circuitry associated with surges, high peak power or high energy, replacing carbon composition resistors which can be difficult to source.

 
 
 
 
 
 
 

They offer enhanced performance in high voltage power supplies, R-C snubber circuits and inrush limiters.

In pulsed applications, these compact resistors distribute the energy uniformly throughout their structure, resulting in low thermal stress. The result is increased reliability, and in many cases reduced size, compared to wire or film types.

 

The solvent-resistant epoxy coating allows operation in almost any environment, and the choice of axial or radial lead construction offers convenient use.

       
 
 
 
 
 
 
 
 
 
 

Technical Specifications

PART

NUMBER

STYLE

RESISTANCE

RANGE

IMPULSE

VOLTAGE

AVG.

POWER

ENERGY

L max

D max

LEADS

 

  (Ohms) (Volts) (Watts)

(Joules)

(mm)

(mm)

(AWG)

RT515AXXXL

Axial

22 - 68K 3500 1.0

30

15.5

5.0

20

RT818AXXXL

Axial

10 - 47K 7500 2.0

70

18.5

8.0

20

RL818AXXXL

Radial

18 - 47K 7500 2.0

70

18.5

8.0

20

NOTES

Resistance: E6 Standard Values, +/- 20%

Impulse Voltage: In air, 1.2/50 s waveform

Avg. Power: Free air, 40 ˚C ambient

Energy: Single Impulse

 

TECHNICAL DATA

PARAMETER

MAXIMUM ΔR TEST METHOD

Life Test

+ 5.0%

MIL-STD-202F, method 108A. except 25˚C. 1000 hrs. @ rated power: 1.5 hrs. ON, 0.5 hrs. OFF

Single Pulse Energy

+/- 1.5%

Single 1s duration pulse of 100% Rated Energy

Short-time Overload

+/- 2.5%

5x Rated Power. 2s ON, 5s OFF. 5 cycles.

Long-term High Temp.

+/- 2.0%

1000 hours @ 150˚C

Thermal Shock Cycle

+/- 2.0%

MIL-STD-202F, method 107D. -55˚C to +125˚C. 5 cycles.

Moisture Resistance

+/- 1.0%

90% - 95% rh @ 40˚C, 1000 hrs.

T. C. R.

+/- 1500 ppm

Two point measurement, 20˚C and 150˚C

 

ORDERING INFORMATION

    RX D LL X XXX X  
 

Resistor Series

       

Tolerance

 

Diameter (mm)

     

K = +/- 10%, L = +/- 20%

 

Length (mm)

 

Resistance, 2 digits + multiplier

 

Lead Style (RL): 'A' = Crimped, 'D' = Straight

Example: 331 = 330 Ohms

             
 
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
                     
Home  |  Site Map  |  About HVR  |  Products  |  Applications  |  Agents  |  Contact Us  |  Events
   Copyright HVR International Limited 2015. All Rights Reserved. This page last updated: 17 April, 2013.