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SPEER ELECTRONICS, INC.
TELEPHONE: 814-362-5536
FAX: 814-362-8883
9
FLAT CHIP RESISTORS
RK73
PRECISION 1% & 0.5% TOLERANCE
AMBIENT TEMPERATURE
(
°C)
ENVIRONMENTAL APPLICATIONS
100
80
60
40
20
20
40
60
80
100
120
140
160
180
70
125
150
175
DERATING
1E
1J, 2H, 3A 2A, 2B, 2E
PARAMETER
MAXIMUM
∆ R
TEST METHOD
Thermal Shock
±0.2%
MIL-STD-202, Method 107
-55
°C ~ +125°C, 5 cycles
Low Temperature
±0.2%
MIL - R - 55342
π 4.7.4 1 Hour @ -55°C
Operation
followed by 45 minutes of RCWV**
High Temperature
±0.5%
MIL - R - 55342
π 4.7.6
Exposure
100 Hours @ 125
°C
Short Time Overload
±2.0%
MIL - R - 55342
π 4.7.5
2.5 X RCWV for 5 seconds
Resistance to
±0.2%
MIL - R - 55342
π 4.7.7
Solder Heat
260
°C for 10 seconds
Terminal Strength-Push
±0.75%
1.2 Kg for 1 minute
Terminal Strength-Bend
±0.5%
5mm Deflection in Either
Direction for 10 Seconds
Moisture Resistance
±0.5%
MIL - STD - 202, Method 103
40oC, 90 - 95%RH, 1000 Hours
Life
±0.75%
MIL - STD - 202, Method 108 70
°C, 1000
Hours @ RCWV, 1 1/2 Hr ON, 1/2 Hr OFF
Pulse
±1.5%
2.5 X RCWV**, Not Exceeding Maximum
Overload Voltage 1 Second ON, 25 Seconds
OFF 10,000 Cycles
Temperature Cycling
±0.75%
30 Minutes at -55
°C; 15 Minutes at +25°C,
30 Minutes at + 125
°C, 15 Minutes at +25°C, 5 Cycles
MINIMUM
Terminal Adhesion
15 Grams
Axial Pull, One Terminal at a Time
Dielectric Withstanding
Voltage
1E
100V
1J
100V
2A
400V
2B
400V
MIL - STD - 202, Method 301
2E
400V
2H
400V
3A
400V
Insulation Resistance
10,000 Meg Ohm
**RCWV = Rated Continuous Working Voltage
125
100
75
50
25
25
50
75
100
% RATED POWER
3A
2A
1J
1E
2H
2E
2B
Pulse Limitation Curves Are Available at
www.koaspeer.com
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