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CTR

High Voltage - High Power - High Energy

 

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FEATURES

Series 800 and 1000 Ceramic Tubular Resistors(CTR) are available in a wide variety
of sizes and terminations from 2" to 24" in length and " to 2 " in diameter. These
resistors can handle up to 1000 watts, 165 KJ and 165 KV in resistance values from
1 ohm to 1 megaohm.

 

APPLICATIONS

Type SP

- Motor drive circuits

- Snubber circuits

- High-frequency circuits

- RF dummy loads

- Dynamic braking

- Transformer Protection

- Harmonic filter

Type AS

- Impulse generators

- High-voltage circuits

- X-ray equipment

- High voltage power supplies

- Laser/Imaging equipment

- Capacitor charge/discharge

 

Type A

- Bleeder

- Capacitor charge/discharge

・ just to name a few uses

 

 

 

 

CHARACTERISTICS

Characteristics Type SP Type AS Type A  

Maximum operating
temperature **

-55‘C to +350‘C -55‘C  to +230‘C -55‘C  to +230‘C  
Temperature coefficient(%)

+0.2 to
-0.08%

+0.0 to
-0.08%

+0.0 to
-0.2%

percent per ‘C, -55‘C to maximum rated temperature
Voltage coefficient -1.0% -1.0% -

Maximum percent per kilovolt per inch active length
(overall length less termination)

Short time overload ‐ 5% ‐ 2% -

maximum percent change after 5 cycles
10 times rated power, 5 seconds on, 90 seconds off

Load Life ‐ 5% ‐ 5% - Max. % change after 1000hours at rated power
Thermal Shock ‐ 3% ‐ 3% -  
Moisture resistance ‐ 5% ‐ 5% ‐ 5%

maximum percent change
when tested per MIL-STD-202 Method 103

 

 

 

 

 

 

 

 

** Note : When required, Type SP material can withstand short periods of use at red-heat conditions, i.e. up to 550C to 600”C

 

ORDERING PROCEDURE EXAMPLE

TERMINAL END OPTIONS

SP

No Suffix=Standard aluminum Metalized ends

No-arc terminal not available on SP products

G=Radial tab, riveted and soldered
G1=Radial tab, riveted and no solder

AS

DS=Standard dielectric coating and silver metalized ends

N=No-arc terminal and dielectric coating
NO=No-arc terminal with oil resistant coating

DG=Radial tab, riveted and soldered with dielectric coating
DG1=Radial tab, riveted and no solder with dielectric coating
GO=Radial tab, riveted and soldered with oil resistant coating

TO=Soldered end and oil resistant coating

A

No Suffix=Standard nickel metalized ends

D=Dielectric coating
DG=Radial tab, riveted and soldered with dielectric coating

N=No-arc terminal and dielectric coating
NO=No-arc terminal with oil resistant coating

DG=Radial tab, riveted and soldered with dielectric coating
DG1=Radial tab, riveted and no solder with dielectric coating
GO=Radial tab with oil resistant coating

TO=Soldered end and oil resistant coating

 

 

 

 

 

 

 

 

 

DIMENSIONS - Inches (Millimeter)

Type A B C (SP & AS) C (A) D

884SP

885 SP, AS & A

886 SP, AS & A

2.0(50.8)

2.5(63.5)

5.0(127)

0.50(12.7)

0.75(19.05)

0.75(19.05)

0.22(5.58)

0.50(12.7)

0.50(12.7)

-

0

0

0.25(6.35)

0.50(12.7)

0.62(15.74)

887SP, AS & A

888 SP, AS & A

889 SP, AS & A

6.0(152.4)

8.0(203.2)

12.0(304.8)

1.00(25.4)

1.00(25.4)

1.00(25.4)

0.75(19.05)

0.75(19.05)

0.75(19.05)

0.5(12.7)

0.5(12.7)

0.5(12.7)

0.50(12.7)

0.88(22.35)

0.88(22.35)

 

890 SP, AS & A

891 SP

892 SP

18.0(457.2)

18.0(457.2)

24.0(609-6)

1.00(25.4)

2.00(50.8)

2.00(50.8)

0.75(19.05)

1.50(38.1)

1.50(38.1)

0.5(12.7)

-

-

 

0.88(22.35)

1.00(25.4)

1.00(25.4)

1026 AS

1028 AS

1032 AS

1038 AS

1044 AS

6.0(152.4)

8.0(203.2)

12.0(304.8)

18.0(457.2)

24.0(609.6)

1.50(38.1)

1.50(38.1)

1.50(38.1)

1.50(38.1)

1.50(38.1)

1.00(25.4)

1.00(25.4)

1.00(25.4)

1.00(25.4)

1.00(25.4)

-

-

-

-

-

0.50(12.7)

0.88(22.35)

0.88(22.35)

0.88(22.35)

0.88(22.35)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DERATING CURVE & SURFACE TEMPERATURE RISE VERSUS POWER

Derating Curve
Power ratings are based on maximum allowable surface temperature in still air at 40C ambient temperature.

Surface temperature rise versus Power
(Curve is Typical for Resistor Midpoint with Horizontal Orientation in still Air)

Electrical Specifications

Length & Diameter (inches) Type Resistance Available (Ohms) Min. to Max. Average Power @ 40C (watts) Peak* Energy (joules) Peak* Voltage** (volts)
2 x 1/2 884SP 1.0-200 22.5 250 1,000
2-1/2 x 3/4 885SP 1.0-130 45 250 1,000
  885AS...DS 6.0-1200 15 2,800 8,000
  885A 1500-220K 15 750 3.750
5 x 3/4 886SP 1.0-330 90 500 4,000
  886AS..DS 15.0-3300 30 7,500 20,000
  886A 3900-390K 30 1,500 10,000
6 x 1 887SP 1.0-330 150 1,600 4,000
  887AS...DS 12.0-3300 50 13,000 30,000
  887A 3900-390K 50 6,000 12,000
6 x 1-1/2 1026AS..DS 5.0-1200 70 30,000 30,000
8 x 1 888SP 1.0-390 190 2,100 6,000
  888AS..DS 15.0-3900 75 16,500 45,000
  888A 4700-470K 60 7,500 15,000
8 x 1-1/2 1028AS..DS 6.5-1875 100 46,000 45,000
12 x 1 889SP 1.0-680 275 3,200 10,000
  889AS..DS 25.0-6800 100 27,000 75,000
  889A 8200-680K 90 12,500 25,000
12 x 1-1/2 1032AS..DS 9.0-2500 150 75,000 75,000
18 x 1 890SP 1.0-1000 375 4,200 16,000
  890AS..DS 40.0-10K 150 43,000 120,000
  890A 12K-1M 125 20,000 40,000
18 x 1-1/2 1038AS..DS 15.0-3800 225 119,000 120,000
18 x 2 891SP 1.0-450 750 15,000 16,000
24 x 2 892SP 1.0-600 1000 17,500 22,000
24 x 1-1/2 1044AS 20.0-4800 300 164,000 165,000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Allowable peak energy/voltage will depend on the resistance value;   consult factory

**Derate by 50% with oil resistant coating on Type AS resistors. Energy ratings are based on pulses <10 milliseconds.
Type SP ratings can be substantially greater for longer pulses. Consult factory.

 

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Tel:82-32-817-4325 Fax:82-32-817-4329

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