Power Wirewound Resistors
(AK, P & C Series)
FEATURES:
- Resistance Tolerance: 5%, 3%, 1% std
(Accuracies available to .05%) - Standard Resistance Range: .1Ω to maximum listed.
- Temperature Coefficient: 90ppm/°C less than 1Ω ; 50 ppm/°C 1 Ω to 10Ω ; 30 ppm/°C 10Ω to 100Ω ; 20 ppm/°C 100 Ω and above.
- Short Term Overload: 5 seconds at 5 times rated power.
- Operating Range: -55°C to + 250°C (U Rating) or +350°C (V Rating)
- Covering: Flame Retardant Silicone (Molded & Coated)
- Windings: Space wound on Ceramic or Alumina Oxide Cores.
Non-inductive windings are available & identified by adding an "N" in front of the style number. - Divide maximum resistance by 2 for non-inductive windings.
- "U" and "V" wattage ratings and derating curves are based on MIL-PRF-26 characteristics. "V" ratings are intended for 5% tolerance units, and result in operation at a hotspot of approximately 350°C; "U" ratings govern 3% through .1% tolerances and result in a hotspot of approximately 250°C
- RoHS compliant, Pb-Free construction available.
|
Space Miser Power Resistors -- AK Series |
|||||||||
|---|---|---|---|---|---|---|---|---|---|
|
KRL |
MIL- |
WATTAGE RATING |
MAXIMUM
WORKING VOLTAGE |
DIELECTRIC
WITHSTAND |
MAX.
RESIST. IN OHMS |
DIMENSIONS |
LEAD AWG
|
||
|
U
|
V
|
LENGTH
± .062 |
DIAMETER
± .032 |
||||||
| AK-1 | RW-81 |
1.0
|
--
|
58V
|
500V
|
3.4KΩ
|
.250
|
.094
|
24 (.020)
|
| AK-2 |
1.5
|
--
|
82V
|
500V
|
4.5KΩ
|
.312
|
.094
|
24 (.020)
|
|
| AK-3 | RW-80 |
2.25
|
--
|
150V
|
500V
|
10KΩ
|
.406
|
.094
|
24 (.020)
|
| AK-5 |
4.0
|
5.0
|
261V
|
1KV
|
22KΩ
|
.560
|
.158
|
20 (.032)
|
|
| AK-5C |
5.0
|
6.5
|
181V
|
1KV
|
32KΩ
|
.500
|
.250
|
18 (.040)
|
|
| AK-6 |
6.0
|
7.0
|
295V
|
1KV
|
45KΩ
|
.625
|
.250
|
18 (.040)
|
|
| AK-10 |
7.0
|
10.0
|
444V
|
1KV
|
90KΩ
|
.875
|
.312
|
18 (.040)
|
|
|
Wirewound Power Resistors -- P & C Series |
|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KRL STYLE |
MIL-PRF-26 | MIL-PRF-39007 | WATTAGE |
MAXIMUM
WORKING VOLTAGE |
DIELECTRIC
WITHSTAND VOLTAGE |
MAX.
RESIST. IN OHMS |
DIMENSIONS | LEAD AWG | |||||
| RATING | LENGTH | DIAMETER | |||||||||||
|
U
|
V
|
± .062
|
(± .010)
|
± .032
|
(± .010)
|
||||||||
| C-1/4 |
.5
|
1.0
|
58V
|
500V
|
3.4KΩ
|
.250
|
|
.094
|
|
24 (.020)
|
|||
| (P-1/2) | C-1/2 |
.75
|
1.2
|
73V
|
500V
|
4.5KΩ
|
.280
|
(.300)
|
.094
|
(.120)
|
24 (.020)
|
||
| (P-1A) | C-1A | RW-70 |
1.0
|
1.5
|
122V
|
500V
|
10KΩ
|
.406
|
(.425)
|
.094
|
(.120)
|
24 (.020)
|
|
| C-1B |
1.1
|
1.6
|
139V
|
500V
|
12KΩ
|
.530
|
|
.094
|
|
24 (.020)
|
|||
| (P-1C) | C-1C |
1.0
|
1.5
|
87V
|
500V
|
5KΩ
|
.330
|
(.360)
|
.094
|
(.120)
|
24 (.020)
|
||
| C-1D |
3.25
|
4.5
|
406V
|
500V
|
38KΩ
|
.700
|
|
.110
|
|
20 (.032)
|
|||
| C-2 |
1.5
|
2.0
|
141V
|
1KV
|
10KΩ
|
.385
|
|
.187
|
|
20 (.032)
|
|||
| C-2A | RW-79 |
3.0
|
3.75
|
257V
|
1KV
|
22KΩ
|
.560
|
|
.187
|
|
20 (.032)
|
||
| C-2B | RWR-71 |
3.25
|
4.75
|
444V
|
1KV
|
42KΩ
|
.812
|
|
.187
|
|
20 (.032)
|
||
| C-2C |
3.0
|
3.5
|
181V
|
1KV
|
32KΩ
|
.500
|
|
.250
|
|
20 (.032)
|
|||
| C-2D | RW-69 |
2.5
|
3.0
|
212V
|
1KV
|
20KΩ
|
.500
|
|
.210
|
|
20 (.032)
|
||
| C-2E |
3.0
|
3.75
|
261V
|
1KV
|
22KΩ
|
.560
|
|
.158
|
|
20 (.032)
|
|||
| C-2F |
2.5
|
3.0
|
210V
|
1KV
|
20KΩ
|
.490
|
|
.158
|
|
20 (.032)
|
|||
| C-3 |
4.0
|
5.5
|
295V
|
1KV
|
45KΩ
|
.625
|
|
.250
|
|
20 (.032)
|
|||
| C-4 |
5.0
|
6.0
|
444V
|
1KV
|
65KΩ
|
.875
|
|
.250
|
|
20 (.032)
|
|||
| C-5 | RW-74 | RWR-74 |
5.0
|
6.0
|
444V
|
1KV
|
90KΩ
|
.875
|
|
.312
|
|
18 (.040)
|
|
| C-6 | RW-67 |
6.0
|
6.5
|
488V
|
1KV
|
100KΩ
|
1.000
|
|
.312
|
|
18 (.040)
|
||
| C-7 |
7.0
|
8.0
|
730V
|
1KV
|
100KΩ
|
1.200 ±.094
|
|
.312 ±.062
|
|
18 (.040)
|
|||
| C-7A | RW-55 |
7.5
|
9.0
|
800V
|
1KV
|
150KΩ
|
1.375 ±.094
|
|
.375 ±.062
|
|
18 (.040)
|
||
| C-10A | RW-78 | RWR-78 |
10.0
|
12.0
|
1KV
|
1KV
|
275KΩ
|
1.780 ±.094
|
|
.375 ±.062
|
|
18 (.040)
|
|
P = Molded ( ) C = Coated