LESHAN RADIO COMP ANY , LTD.
15A–1/2
1A
1A FAST RECOVERY DIODES
BA157
BA158
BA159D
BA159
TYPE Maximum
Peak Reverse
Voltage
Maximum Average
Rectified Current
@ Half-Wave
Resistive Load 60Hz
Maximum
Forward Peak
Surge Current @
8.3ms Superimposed
Maximum
Reverse
Current @ PRV
@ TA=25ºC
Maximum
Forward
Voltage
@ TA=25ºC
Package
Dimensions
Maximum
Reverse
Recovery Time
1.0
Trr I F = 0.5A, I R = 1.0A, I RR = 0.25A
Trr Test Conditions: I F = 0.5A, I R = 1.0A, I RR = 0.25A
400
600
800
1000
PRV
V PK
I O @ T L
A AV ºC
I FM (Surge)
A PK
I R
µAdc
I FM V FM
A PK V PK
Trr
ns
55 20 5.0 1.0 1.3
150
250
500
500
BA157 – BA159
DO – 41
DO – 41
.107(2.7) DIA
.080(2.0)
1.0(25.4)
MIN
.205(5.2)
.166(4.2)
.034(0.9) DIA
.028(0.7)
1.0(25.4)
MIN
LESHAN RADIO COMP ANY , LTD.
15A–2/2
BA157–BA159
RATING & CHARACTERISTIC CURVES OF FAST RECOVERY DIODES
FIG. 1 – FORWARD CURRENT
DERATING CURVE
AMBIENT TEMPER ATURE, (ºC)
AVERAGE FORWARD CURRENT,(A)
TJ =55ºC
8.3ms Single Half Sine-Wave
(JEDEC Method)
1 10 100
20
15
10
5
0
.4 .6 .8 1.0 1.2 1.4 1.6 1.8
20
10
1.0
0.1
.01
TJ =25ºC
Pulse Width=300µs
1% Duty Cycle
.1 .2 .4 1.0 2 4 10 20 40 100
100
60
40
20
10
6
4
2
1
TJ =25ºC
f = 1.0MHz
Vsig = 50mV p-p
FIG. 5 – TYPICAL JUNCTION CAPACITANCE
FIG. 2 – MAXINUM NON-REPETITIVE
FOWARD SURGE CURRENT
JUNCTION CAPACITANCE,(pF)
REVERSE VOLTAGE,(V)
PEAK FORWARD SURGE CURRENT,(A)
NUMBER OF CYCLES AT 60Hz
FIG. 3 – TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
INSTANTANEOUS FORWARD VOLTAGE,(V)
INSTANTANEOUS FORWARD CURRENT, (A)
0 25 50 75 100 125 150 175
Resistive or
Inductive Load
0.375”(9.5mm)
Lead Length
1.0
0.8
0.6
0.4
0.2
0
0 20 40 60 80 100
10
1.0
.1
0.01
0.001
TJ =25ºC
INSTANTANEOUS REVERSE CURRENT (µA)
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
FIG. 4 – TYPICAL REVERSE CHARACTERISTICS
TJ =100ºC
0.01 0.1 1 10 100
100
60
40
20
10
6
4
2
1
FIG. 6 – TYPICAL TRANSIENT THERMAL IMPEDANCE
TRANSIENT THERMAL IMPEDANCE. ºC/W
t, PULSE DURATION. (sec)
