Series 500SP Slab Resistors provide high power and energy dissipation in a compact size. Proprietary bulk ceramic "SP" material is used in a simple, efficient design that permits energy to be uniformly absorbed throughout the resistor body, thereby avoiding failure in a peripheral film or wire.
A cost-effective space saving solution
The 500 SP series design enables the designer to minimize resistor package size and cost while providing unequalled performance and reliability. The slim, compact resistors offer a number of termination options allowing easy configuration for specific requirements.
Standard Products:
Monolithic Bulk Ceramic Shape
Standard units are 1” wide by ¼” thick in variable lengths of 2, 3, 4, 6, 8 and 10 inches. Aluminum metallized ends with or without radial tabs are standard. Other lengths to 10” maximum are available.
Rated average power is 15 watts per inch of length based on 350°C maximum operating temperature with 40°C ambient.
Specifications
Type
Length (L)
Resistance Range (Ohms)
Average Power @ 40°C Amb. (Watts)
Peak* Energy @40°C Amb. (Joules)*
Peak Voltage (Volts)
Resistor Weight (Grams)
502SP
2" (50.8mm)
0.2-80
30
150
900
15
503SP
3" (76.2mm)
0.3-150
45
290
1900
22.5
504SP
4" (101.6mm)
0.4-210
60
480
2800
30
506SP
6" (152.4mm)
0.8-340
90
800
4700
45
508SP
8" (203.2mm)
1.0-470
120
1100
6700
60
510SP
10" (254.0mm)
1.3-600
150
1400
8500
75
Characteristics
Operating Temperature
-55°C to +350°C
Temperature Coefficient
+ 0.2 to - 0.08 %/°C
Short Time Overload Max % change after 5 cycles - 10 times rated power, 5 seconds on, 90 seconds off
± 2%
Load Life Max % change after 1000 hours, rated power 1-1/2 hours on; 1/2 hour off
±5%
Thermal Shock Max % change after 10 cycles - 55°C to +125°C
±3%
Moisture Resistance Max % change when tested per MIL-STD-202, Method 103
±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
