Tubular Resistors

Typical applications:

High power/frequency loads
Current limiting
Current sensing
Parasitic suppression
Snubber circuits
RF power amplifiers
Capacitor crowbar circuits
Impulse voltage generators
Energy research
Pulse modulators
Radar
Pulse-forming networks
High voltage snubber circuits
Arc furnace damping
X-ray/imaging equipment
EMI/lightning suppression

Tubular Resistors

Series 800 and 1000 Resistors are available in a wide variety of sizes and terminations from 2" to 24" in length and ½" to 1½" in diameter. These resistors can handle up to 1000 watts, 165 KJ and 165 KV in resistance values from 1 ohm to 1 megohm.

Characteristics

	Type SP	Type AS	Type A
Maximum operating temperature: °C	350	230	230
Temperature coefficient: percent per °C, -55°C to maximum rated temperature	+0.2, -0.08	+0.0, -0.08	+0.0, -0.2
Voltage coefficient: Maximum percent per kilovolt per inch active length (overall length less termination)	1.0	1.0	-
Short time overload: maximum percent change after 5 cycles 10 times rated power, 5 seconds on, 90 seconds off	2.0	2.0	-
Moisture resistance: maximum percent change when tested per MIL-STD-202 Method 103	2.5	2.5	2.5

Electrical Specifications

Length & Diameter (inches)	Type	Resistance Available (ohms) Min to Max	Average Power @ 40°C (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 885AS…DS 885A	1.0-130 6.0-1200 1500-220K	45 15 15	250 2,800 750	1,000 8,000 3.750
5 x 3/4	886SP 886AS..DS 886A	1.0-330 15.0-3300 3900-390K	90 30 30	500 7,500 1,500	4,000 20,000 10,000
6 x 1	887SP 887AS…DS 887A	1.0-330 15.0-3300 3900-390K	150 50 50	1,600 13,000 6,000	4,000 30,000 12,000
6 x 1-1/2	1026AS..DS	5.0-1200	70	30,000	30,000
8 x 1	888SP 888AS..DS 888A	1.0-390 15.0-3900 4700-470K	190 75 60	2,100 16,500 7,500	6,000 45,000 15,000
8 x 1-1/2	1028AS..DS	6.5-1875	100	46,000	45,000
12 x 1	889SP 889AS..DS 889A	1.0-680 25.0-6800 8200-680K	275 100 90	3,200 27,000 12,500	10,000 75,000 25,000
12 x 1-1/2	1032AS..DS	9.0-2500	150	75,000	75,000
18 x 1	890SP 890AS..DS 890A	1.0-1000 40.0-10K 12K-1M	375 150 125	4,200 43,000 20,000	16,000 120,000 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.

Standard Size Dimensions - inches

Type	A	B	C (SP & AS)	C (A)	D
884 SP 885 SP, AS & A 886 SP AS & A	2.0 2.5 5.0	0.50 0.75 0.75	0.22 0.50 0.50	- 0 0	0.25 0.50 0.62
887 SP, AS & A 888 SP, AS & A 889 SP, AS & A	6.0 8.0 12.0	1.00 1.00 1.00	0.75 0.75 0.75	0.5 0.5 0.5	0.50 0.88 0.88
890 SP, AS & A 891 SP 892 SP	18.0 18.0 24.0	1.00 2.00 2.00	0.75 1.50 1.50	0.5 - -	0.88 1.00 1.00
1026 AS 1028 AS 1032 AS 1038 AS 1044 AS	6.0 8.0 12.0 18.0 24.0	1.50 1.50 1.50 1.50 1.50	1.00 1.00 1.00 1.00 1.00	- - - - -	0.50 0.88 0.88 0.88 0.88

Special sizes are available; consult factory.

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