Ideal for replacement of Carbon Composition Resistors
As alternatives to hard-to-find carbon composition resistors, Series 100 and 200 resistors can be used as drop-in replacements for 1 and 2 watt sizes. Much larger sizes, up to 70 watts in a single component, are available for new or redesigns where an array of smaller resistors may have been previously required.
Body Size
Resistance Range, ohms
Dia (D) Max Inch (mm)
Length (L) Max Inch (mm)
Average (1) Power Rating. @40°C Amb., Watts
Rated (2) Peak Energy, Joules
Rated (2) Peak Voltage
Rated (3) Peak Current, Amps
Typical (4) Resistor Body Weight
231AS 231SP
25 – 6,350 1 – 1,000
0.2(5.1) 0.2(5.1)
0.75 (19.1) 0.75 (19.1)
1.5 2.5
75 15
1,500 V 375 V
25 350
0.44 0.44
233AS 233SP
6 –1,800 1- 120
0.31 (7.9) 0.31 (7.9)
0.75 (19.1) 0.75 (19.1)
2 7
170 20
1,100 V 375V
35 550
1.2 1.2
234AS 234SP
12 – 5,000 1 – 330
0.31 (7.9) 0.31 (7.9)
1.125 (28.6) 1.125 (28.6)
3 10
275 30
2500 V 500 V
35 550
1.9 1.9
250AS 250SP
4 – 1,200 1 –150
0.44 (11.1) 0.44 (11.1)
0.75 (19.1) 0.75 (19.1)
2.5 8.5
260 20
1,500 V 375 V
45 700
1.9 1.5
251AS 251SP
8 – 2,300 1 – 330
0.44 (11.1) 0.44 (11.1)
1.125 (28.6) 1.125 (28.6)
3.5 12
400 30
2,500 V 500 V
45 700
3.0 2.4
102AS 102SP
30 – 9,000 1 – 700
0.31 (7.9) 0.31 (7.9)
2.125 (54.0) 2.125 (54.0)
5 15
600 50
3,000 V 1,000 V
35 550
3.8 3.8
252AS 252SP
20 – 5,800 1 – 460
0.44 (11.1) 0.44 (11.1)
2.125 (54.0) 2.125 (54.0)
6 18
900 75
3,000 V 1,000 V
45 700
6.0 4.8
104AS 104SP
55 – 18,000 2 – 1,500
0.31 (7.9) 0.31 (7.9)
4.125 (104.8) 4.125 (104.8)
9 25
1,200 95
9,000 V 3,600 V
35 550
7.6 7.6
254AS 254SP
36 – 12,000 2 – 1,000
0.44 (11.1) 0.44 (11.1)
4.125 (104.8) 4.125 (104.8)
11 31
1,800 150
9,000 V 3,600 V
45 700
12.0 9.6
106AS 106SP
90 – 30,000 3 – 2,400
0.31 (7.9) 0.31 (7.9)
6.125 (155.6) 6.125 (155.6)
13 36
1,900 155
15,000 V 5,000 V
35 550
11.4 11.4
256AS 256SP
60 – 20,000 2 – 1,600
0.44 (11.1) 0.44 (11.1)
6.125 (155.6) 6.125 (155.6)
16 45
2,900 240
15,000 V 5,000 V
45 700
18.0 14.4
109AS 109SP
150 – 48,000 3 – 2,500
0.31 (7.9) 0.31 (7.9)
9.125 (231.8) 9.125 (231.8)
20 55
3,000 250
25,000 V 8,800 V
35 550
17.1 17.1
259AS 259SP
100 – 32,000 4 – 3,800
0.44 (11.1) 0.44 (11.1)
9.125 (231.8) 9.125 (231.8)
25 70
4,600 380
25,000 V 8,800 V
45 700
27.0 21.6
1. Rated Power: De-rate linearly to 0 Watts at 230°C for Type AS. De-rate linearly to 0 Watts at 350 °C for Type SP.
2. Allowable peak energy/voltage will depend on the resistance value and pulse width. Energy ratings are based on pulse < 10 milliseconds. Type SP rating can be substantially greater for longer pulses. Consult Kanthal Globar.
3. Peak Current Ratings presume energy approaching rated peak energy values. Allowable current can be higher for lowe energy values. Consult Kanthal Globar.
4. Excludes caps/leads and coating.
Characteristics
Short Time Overload:
Characteristics
Type SP
Type AS
Operating Temperature (1)
-55°C to +350°C
-55°C to +230°C
Resistance Temperature Coefficient
+ 0.2 to - 0.08 %/°C
+ 0.0 to - 0.08 %/°C
Voltage Coefficient Max. % per kilovolt per inch active length
1.0%
1.0%
Short Time Overload Max. % change after 10 cycles of 1000% rated power + 5% + 2% 5 sec. On, 90 sec. Off
±5%
±5%
Load Life Max. % change after 1000 hrs. at rated power
±5%
±5%
Thermal Shock Max. % change after 10 cycles -55°C to +125°C
±3%
±3%
Moisture Resistance Max. % change when tested per MIL-STD-202, Method 103
±5%
±5%
(1) Note: When required, Type SP material can withstand short periods of use at red-heat conditions, i.e. up to 550 to 600°C
Typical Physical Properties
SP Resistors
AS Resistors
Density
2.2 - 2.4 gm/cc
2.2 - 2.6 gm/cc
Specific Heat
0.24 - 0.26 cal/gm °C
0.23 - 0.25 cal/gm °C
Thermal Conductivity
0.14 - 0.16 cal/cm -°C - sec
0.003 - 0.006 cal/cm -°C - sec
Power ratings are based on maximum allowable surface temperature in still air at 40°C ambient temperature.
