Rev Date: 03/25/2011 1 www.seielect.com
This specification may be changed at any time without prior notice marketing@seielect.com
Please confirm technical specifications before you order and/or use.
KAL Series
Aluminum Housed Surface Mount Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Features:
• Aluminum housing for maximum heat dissipation
• Complete welded construction
• 5 - 50W tinned copper terminals
• Centerless ground steatite or alumina cores
• Molded epoxy body for heat transfer
• Non-inductive winding available
• 100 – 250W threaded terminals
• RoHS compliant / lead-free
Dielectric
T
y
pe / Code Withstandin
g
Commercial MIL Voltage 0.1% 0.5% 1% 3% 5%
KAL5 RE-60 7.5W 5W - - - - 1 - 50K
KAL10 RE-65 12.5W 10W
KAL25 RE-70 25W 20W
KAL50 RE-75 50W 30W
KAL100 RE-77 100W 75W 0.4 - 50K
KAL250 RE-80 250W 120W -
Temperature Coefficient Standard: ±100ppm below 0.1Ω, ±50ppm from 0.1Ω - 9.9Ω, ±30ppm from 10Ω - 49Ω, & ±20ppm above 50Ω
0.05 - 30K
0.05 - 51.1K
0.05 - 150K
0.4 - 50K
1,000 VAC
1 - 1K
2,500 VAC
3,000 VAC 1 - 1K
0.6 - 80K
-
MIL-R-26 Ref. Ohmic Range (Ω) and Tolerance
Power Rating
(Watts @ 25ºC)
Electrical Specifications
Test Test Conditions Results
Short time Overload 5x wattage rating - 5 seconds ∆R ± (0.5% + 0.05Ω) MAX
Moisture resistance Temp 40ºC moisture 95% CDC 100V for 500 hours ∆R ± (0.5% + 0.05Ω) MAX
Load rating (chasis is mounted)
1.5 hours ON, 0.5 hours OFF. Repeated for 1000 hours
Load life ∆R ± (1.5% + 0.05Ω) MAX
Performance Characteristics
Power Derating Curve:
100
75
50
25
050 100
Ambient Temperature (ºC)
150 200 250 300
Percent Rated Power (%)
275
25
Rev Date: 03/25/2011 2 www.seielect.com
This specification may be changed at any time without prior notice marketing@seielect.com
Please confirm technical specifications before you order and/or use.
KAL Series
Aluminum Housed Surface Mount Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
KAL 5 - 50
KAL 100
KAL 250
Type ABCDEFGHJKLMNPRS
Unit
±0.005 ±0.005 ±0.031 ±0.062 ±0.015 ±0.015 ±0.031 ±0.01 ±0.015 ±0.01 ±0.005 ±0.015 ±0.005 ±0.062 ±0.01 ±0.01 inches
±0.1 ±0.1 ±0.8 ±1.6 ±0.4 ±0.4 ±0.8 ±0.3 ±0.4 ±0.3 ±0.1 ±0.4 ±0.1 ±1.6 ±0.25 ±0.25 mm
0.394 0.492 0.591 0.984 0.335 0.65 0.315 0.063 0.157 0.099 0.079 0.079 0.051 0.197 inches
10 12.5 15 25 8.5 16.5 8 1.6 4 2.5 2 2 1.3 5 mm
0.562 0.625 0.75 1.375 0.42 0.8 0.39 0.075 0.19 0.093 0.093 0.102 0.086 0.312 inches
14.3 15.9 19 34.9 10.7 20.3 9.9 1.9 4.8 2.4 2.4 2.6 2.2 7.9 mm
0.719 0.781 1.062 1.938 0.55 1.08 0.546 0.088 0.26 0.172 0.125 0.115 0.086 0.438 inches
18.3 19.8 27 49.2 14 27.4 13.9 2.2 6.6 4.4 3.2 2.9 2.2 11.1 mm
1.563 0.844 1.968 2.781 0.63 1.14 0.61 0.088 0.3 0.196 0.125 0.107 0.086 0.41 inches
39.7 21.4 50 70.6 16 29 15.5 2.2 7.6 5 3.2 2.7 2.2 10.4 mm
2.752.25 3.5 5.481.892.812.180.190.960.370.190.29 0.99 inches
69.9 57.2 88.9 139.2 48 71.4 55.6 4.8 24.3 9.5 4.8 7.1 25.12 mm
3.87 2.5 4.5 7 2.13 3 2.19 0.25 0.96 0.31 0.19 0.25 1.25 0.87 3 inches
98.4 63.5 114.3 177.8 54 76.2 55.6 6.4 24.3 7.9 4.8 6.4 31.8 22.2 76.2 mm
-
-
-
-
-
-
-
-
-
-
-
-KAL100
KAL250
Tolerance
KAL5
KAL10
KAL25
KAL50
Mechanical Specifications
Rev Date: 03/25/2011 3 www.seielect.com
This specification may be changed at any time without prior notice marketing@seielect.com
Please confirm technical specifications before you order and/or use.
KAL Series
Aluminum Housed Surface Mount Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Size
KAL 5Quantity
NKAL 10 50
25 20
50 10
100 5
250 10
5
Code Description SizeStandard Code Tol5W
Non-inductive
D0.5%
100W
F1%
H3%
50W
10W
250
B
10
5
250W 1 Mohm = 1M00J 5% 100
Bulk 10.2 Kohm = 10K2
25
50
B0.1%
25W
Product Series Power Tolerance Resistance ValuePackaging
Four characters with the
multiplier used as the
decimal holder.
1234567891011
KAL10FB10K0
How to Order
Legacy Part Number (before January 3, 2011):
Nominal
Resistance Tolerance
10K 1%
T
yp
e Descri
p
tion Code Watta
g
e Tolerance T
yp
es Qt
y
Descri
p
tion Code
KAL Standard 5 5W 0.1% KAL5 50
NKAL Non-Inductive 10 10W 0.5% KAL10 20
25 25W 1% KAL25 10
50 50W 3% KAL50 5
100 100W 5% KAL100 10
250 250W KAL250 5
Bulk B
SEI Type Code Packaging
KAL 10 B
