KAL Series Stackpole Electronics, Inc. Aluminum Housed Surface Mount Resistor Features: • • • • • • • • Resistive Product Solutions Aluminum housing for maximum heat dissipation Complete welded construction 10-50W tinned copper terminals Centerless ground steatite or alumina cores Molded epoxy body for heat transfer Non-inductive winding available (NKAL) 100–250W threaded terminals RoHS compliant / lead-free Electrical Specifications Power Rating Dielectric Ohmic Range (Ω) and Tolerance MIL-R-26 Ref. (Watts @ 25ºC) Type / Code Withstanding Commercial MIL Voltage 0.1% 0.5% 1% 3% 0.05 - 30K KAL10 RE-65 12.5W 10W 1,000 VAC 1 - 1K 1 - 1K 0.05 - 51.1K KAL25 RE-70 25W 20W 3,000 VAC 0.05 - 150K KAL50 RE-75 50W 30W 0.4 - 50K KAL100 RE-77 100W 75W 0.4 - 50K 2,500 VAC 0.6 - 80K 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 5% Performance Characteristics Test Conditions Test 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 life Load rating (chasis is mounted) 1.5 hours ON, 0.5 hours OFF. Repeated for 1000 hours ∆R ± (1.5% + 0.05Ω) MAX Percent Rated Power (%) Power Derating Curve: 100 75 50 25 0 25 50 100 150 200 250 275 300 Ambient Temperature (ºC) Rev Date: 01/11/2013 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 [email protected] KAL Series Stackpole Electronics, Inc. Aluminum Housed Surface Mount Resistor Resistive Product Solutions KAL 10-50 KAL 100 KAL 250 Mechanical Specifications Type A B C D E F G H J K L M N P R S Unit Tolerance ±0.005 ±0.10 ±0.005 ±0.10 ±0.031 ±0.80 ±0.062 ±1.60 ±0.015 ±0.40 ±0.015 ±0.40 ±0.031 ±0.80 ±0.010 ±0.30 ±0.015 ±0.40 ±0.010 ±0.30 ±0.005 ±0.10 ±0.015 ±0.40 ±0.005 ±0.10 ±0.062 ±1.60 ±0.010 ±0.25 ±0.010 ±0.25 inches mm KAL10 0.562 14.27 0.625 15.88 0.750 19.05 1.375 34.93 0.420 10.67 0.800 20.32 0.390 9.91 0.075 1.91 0.190 4.83 0.093 2.36 0.093 2.36 0.102 2.59 0.086 2.18 0.312 7.92 - - inches mm KAL25 0.719 18.26 0.781 19.84 1.062 26.97 1.938 49.23 0.550 13.97 1.080 27.43 0.546 13.87 0.088 2.24 0.260 6.60 0.172 4.37 0.125 3.18 0.115 2.92 0.086 2.18 0.438 11.13 - - inches mm KAL50 1.563 39.70 0.844 21.44 1.968 49.99 2.781 70.64 0.630 16.00 1.140 28.96 0.610 15.49 0.088 2.24 0.300 7.62 0.196 4.98 0.125 3.18 0.107 2.72 0.086 2.18 0.410 10.41 - - inches mm KAL100 2.750 69.85 2.250 57.15 3.500 88.90 5.480 139.19 1.890 48.01 2.810 71.37 2.180 55.37 0.190 4.83 0.960 24.38 0.370 9.40 0.190 4.83 0.290 7.37 - 0.990 25.15 - - inches mm KAL250 3.870 98.30 2.500 63.50 4.500 114.30 7.000 177.80 2.130 54.10 3.000 76.20 2.190 55.63 0.250 6.35 0.960 24.38 0.310 7.87 0.190 4.83 0.250 6.35 - 1.250 31.75 0.870 22.10 3.000 76.20 inches mm Rev Date: 01/11/2013 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 [email protected] KAL Series Stackpole Electronics, Inc. Aluminum Housed Surface Mount Resistor Resistive Product Solutions 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 Standard KAL NKAL Non-inductive 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 Resistance Value MOQ 250 250 250 60 30 Four characters with the multiplier used as the decimal holder. 10.2 Kohm = 10K2 1 Mohm = 1M00 Legacy Part Number (before January 3, 2011): Type KAL NKAL SEI Type Code Nominal Resistance Tolerance Packaging KAL 10 10K 1% B Description Standard Non-Inductive Code 10 25 50 100 250 Wattage 10W 25W 50W 100W 250W Rev Date: 01/11/2013 This specification may be changed at any time without prior notice Please confirm technical specifications before you order and/or use. Tolerance 0.1% 0.5% 1% 3% 5% 3 Types KAL10 KAL25 KAL50 KAL100 KAL250 MOQ 250 250 250 60 30 Description Code Bulk B www.seielect.com [email protected]