FWXXA Datasheet, PDF (3/4 Pages) Bourns Electronic Solutions – Fusible Power Resistors

300
7W
5W
3W
2W
200
1W
100
0
20
20
40
60
80
100
Rated Load (%)
FWxxA Series Fusible Power Resistors
Pulse Performance
6
7W
5
4
3
5W
3W
2
2W
1
1W
0
4.7
5.6
6.8
8.2
10
12
15
18
20
22
27
33
39
47
68
100 120
Value (Ohms)
1.2/50 µs Peak Voltage Limit (10 pulses at 10 sec. intervals, ∆R < 5 %)
NOTE: The voltage shown in these curves is the voltage across the resistor. The generator voltage will be higher due to the generator’s internal impedance.
70 ^{Fusing Performance}
60
70
50
60
40
50
30
40
20
1W
2 W 30
3W
7W
5W
10
20
0
1W
2W
3W
20
40
60
80
100
120
140
160
180
200
220
240
10
Initial Power (W)
7W
5W
0
20
40
60
80
100
120
140
160
180
200
220
240
Initial Power (W)
Temperature Rise
300
200
100
0
20
20
300
200
40
60
10^R0^{ated Load (%)}
Power Derating Curve
+70 °C
100
+155 °C
7W
5W
80
3W
2W
1W
60
+275 °C
80
100
40
20
0
-55
0
7W
5W
3W
2W
1W
50
100
150
200
250
300
Ambient Temperature (°C)
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performan⁰c₂e₀ in their specific ap₂p₀lications.
40
60
80
100
Rated Load (%)