BY448 Datasheet, PDF (2/3 Pages) NXP Semiconductors – Damper diode

BY448/BY458
Standard Avalanche Sinterglass Diode
Electrical Characteristics
T_amb = 25 °C, unless otherwise specified
Parameter
Test condition
Symbol
Min
Typ.
Max
Unit
Forward voltage
I_F = 3 A
V_F
Reverse current
V_R = V_RRM
I_R
V_R = V_RRM, T_j = 140 °C
I_R
Total reverse recovery time
I_F = 1 A, - d_iF/d_t = 0.05 A/µs
t_rr
Reverse recovery time
I_F = 0.5 A, I_R = 1 A, i_R = 0,25 A
t_rr
1.6
V
3
µA
140
µA
20
µs
2
µs
Typical Characteristics (Tamb = 25 °C unless otherwise specified)
120
l
l
100
80
60
T_L= constant
40
20
0
0 5 10 15 20 25 30
94 9101
l - Lead Length ( mm )
Figure 1. Typ. Thermal Resistance vs. Lead Length
2.5
V_R = V_RRM
half sinewave
2.0
R_thJA = 45 K/W
l = 10 mm
1.5
1.0
0.5
R_thJA = 100 K/W
PCB: d = 25 mm
0
0 25 50 75 100 125 150
16418
T_amb - Ambient Temperature ( ° C )
Figure 3. Max. Average Forward Current vs. Ambient Temperature
100
10 ^{Tj = 150° C}
1
T_j =25 _°C
0.1
0.01
0.001
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
16417
V_F - Forward V oltage ( V )
Figure 2. Forward Current vs. Forward Voltage
1000
V_R = V_RRM
100
10
1
25
50
75 100 125 150
16419
T_j - Junction T emperature ( ° C )
Figure 4. Reverse Current vs. Junction Temperature
http://www.luguang.cn
mail:[e-mail]