KAL Series
Aluminum Housed Chassis Mount Resistor
Features:
•
•
•
•
•
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Stackpole Electronics, Inc.
Resistive Product Solutions
Aluminum housing for maximum heat dissipation
Complete welded construction
10-50W tinned copper terminals
100–250W threaded terminals
Centerless ground steatite or alumina cores
Molded epoxy body for heat transfer
Non-inductive winding available (NKAL)
Suitable for electrical component grade wash process and can be
conformally coated or potted
RoHS compliant / lead-free
Electrical Specifications
Type / Code
KAL10
KAL25
KAL50
KAL100
KAL250
NKAL10
NKAL25
NKAL50
NKAL100
NKAL250
MIL-R-26
Ref.
RE-65
RE-70
RE-75
RE-77
RE-80
Power Rating
(Watts @ 25ºC)
Commercial
MIL
12.5W
10W
25W
20W
50W
100W
250W
12.5W
25W
50W
100W
250W
30W
75W
120W
Dielectric
Withstanding
Voltage
1,000 VAC
3,000 VAC
2,500 VAC
1,000 VAC
-
3,000 VAC
2,500 VAC
TCR (ppm/ºC)
Ohmic Range (Ω) and Tolerance
0.1%
0.5%
1 - 1K
1 - 500
-
1 - 499
1 - 249
-
1%, 3%, 5%
0.05 - 30K
0.05 - 51.1K
0.05 - 150K
0.1 - 3K
0.1
0.05
0.05
0.05
0.1
0.1
-
-
-
-
-
-
3K
15K
24.9K
75K
1.5K
1.5K
<0.1Ω
0.1Ω - 9.9Ω
10Ω - 49Ω
>50Ω
<0.1Ω
0.1Ω - 9.9Ω
10Ω - 49Ω
>50Ω
=
=
=
=
±100ppm
±50ppm
±30ppm
±20ppm
1 - 1K
-
-
=
=
=
=
±100ppm
±50ppm
±30ppm
±20ppm
1 - 499
-
Performance Characteristics
Test
Short time Overload
Moisture resistance
Load life
Test Conditions
5x wattage rating - 5 seconds
Temp 40ºC moisture 95% CDC 100V for 500 hours
Load rating (chasis is mounted)
1.5 hours ON, 0.5 hours OFF. Repeated for 1000 hours
Results
∆R ± (0.5% + 0.05Ω) MAX
∆R ± (0.5% + 0.05Ω) MAX
∆R ± (1.5% + 0.05Ω) MAX
Power Derating Curve:
Percent Rated Power (%)
100
75
50
25
0
25
50
100
150
200
250
275 300
Ambient Temperature (ºC)
Rev Date: 01/27/2016
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
1
www.seielect.com
marketing@seielect.com
KAL Series
Aluminum Housed Chassis Mount Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Mechanical Specifications – KAL/NKAL10, 25, 50
Type
KAL/NKAL10
KAL/NKAL25
KAL/NKAL50
A
0.562 ± 0.005
14.27 ± 0.13
0.719 ± 0.005
18.26 ± 0.13
1.563 ± 0.005
39.70 ± 0.13
B
0.625 ± 0.005
15.88 ± 0.13
0.781 ± 0.005
19.84 ± 0.13
0.844 ± 0.005
21.44 ± 0.13
C
0.750 ± 0.031
19.05 ± 0.79
1.062 ± 0.031
26.97 ± 0.79
1.968 ± 0.031
49.99 ± 0.79
D
1.375 ± 0.062
34.93 ± 1.57
1.938 ± 0.062
49.23 ± 1.57
2.781 ± 0.062
70.64 ± 1.57
E
0.420 ± 0.015
10.67 ± 0.38
0.550 ± 0.015
13.97 ± 0.38
0.630 ± 0.015
16.00 ± 0.38
F
0.800 ± 0.015
20.32 ± 0.38
1.080 ± 0.015
27.43 ± 0.38
1.140 ± 0.015
28.96 ± 0.38
G
0.390 ± 0.031
9.91 ± 0.79
0.546 ± 0.031
13.87 ± 0.79
0.610 ± 0.031
15.49 ± 0.79
Unit
inches
mm
inches
mm
inches
mm
Type
KAL/NKAL10
KAL/NKAL25
KAL/NKAL50
H
0.075 ± 0.010
1.91 ± 0.25
0.088 ± 0.010
2.24 ± 0.25
0.088 ± 0.010
2.24 ± 0.25
J
0.190 ± 0.015
4.83 ± 0.38
0.260 ± 0.015
6.60 ± 0.38
0.300 ± 0.015
7.62 ± 0.38
K
0.093 ± 0.010
2.36 ± 0.25
0.172 ± 0.010
4.37 ± 0.25
0.196 ± 0.010
4.98 ± 0.25
L
0.093 ± 0.005
2.36 ± 0.13
0.125 ± 0.005
3.18 ± 0.13
0.125 ± 0.005
3.18 ± 0.13
M
0.102 ± 0.015
2.59 ± 0.38
0.115 ± 0.015
2.92 ± 0.38
0.107 ± 0.015
2.72 ± 0.38
N
0.086 ± 0.005
2.18 ± 0.13
0.086 ± 0.005
2.18 ± 0.13
0.086 ± 0.005
2.18 ± 0.13
P
0.312 ± 0.062
7.92 ± 1.57
0.438 ± 0.062
11.13 ± 1.57
0.410 ± 0.062
10.41 ± 1.57
Unit
inches
mm
inches
mm
inches
mm
Mechanical Specifications – KAL/NKAL100
Type
A
2.717 ± 0.079
69.00 ± 2.00
B
2.362 ± 0.039
60.00 ± 1.00
C
3.504 ± 0.039
89.00 ± 1.00
D
5.315 ± 0.039
135.00 ± 1.00
E
1.811 ± 0.039
46.00 ± 1.00
F
2.756 ± 0.039
70.00 ± 1.00
Unit
inches
mm
KAL/NKAL100
G
1.752 ± 0.039
44.50 ± 1.00
H
0.187 ± 0.031
4.75 ± 0.79
J
0.748 ± 0.020
19.00 ± 0.50
L
0.197 ± 0.012
5.00 ± 0.30
P
0.906 ± 0.079
23.00 ± 2.00
Unit
inches
mm
Rev Date: 01/27/2016
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
2
www.seielect.com
marketing@seielect.com
KAL Series
Aluminum Housed Chassis Mount Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Mechanical Specifications – KAL/NKAL250
Type
A
3.858 ± 0.079
98.00 ± 2.00
B
2.520 ± 0.039
64.00 ± 1.00
C
4.488 ± 0.039
114.00 ± 1.00
D
6.102 ± 0.039
155.00 ± 1.00
E
2.087 ± 0.039
53.00 ± 1.00
F
3.031 ± 0.039
77.00 ± 1.00
G
2.185 ± 0.039
55.50 ± 1.00
Unit
inches
mm
KAL/NKAL250
H
0.250 ± 0.031
6.35 ± 0.79
J
0.984 ± 0.020
25.00 ± 0.50
L
0.197 ± 0.012
5.00 ± 0.30
P
0.827 ± 0.079
21.00 ± 2.00
R
0.866
22.00
S
3.071
78.00
Unit
inches
mm
How to Order
1
2
3
4
5
6
7
8
9
10
11
K
A
L
1
0
F
B
1
0
K
0
Product Series
KAL
Standard
Non-inductive
NKAL
Size
10
25
50
100
250
Power
10W
25W
50W
100W
250W
Tolerance
Code
Tol
B
0.1%
D
0.5%
F
1%
H
3%
J
5%
Code
B
Packaging
Description
Size
10
25
Bulk
50
100
250
MOQ
250
250
250
60
30
Resistance Value
Four characters with the
multiplier used as the
decimal holder.
"L" used as multiplier
of 10
-3
for any value
under 0.1 ohm.
0.05 ohm = 50L0
0.4 ohm = R400
1 ohm = 1R00
30 Kohm = 30K0
Rev Date: 01/27/2016
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
3
www.seielect.com
marketing@seielect.com
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