BA157 THRU BA159D
FAST SWITCHING PLASTIC RECTIFIER
Reverse Voltage - 400 to 800 Volts Forward Current - 1.0 Ampere
FEATURES
Plastic package has
Underwriters Laboratory
Flammability Classification 94V-0
High surge current capabability
Void-free plastic package
Fast switching for high efficiency
High temperature soldering guaranteed:
350°C/10 seconds, 0.375" (9.5mm) lead length,
5 lbs. (2.3kg) tension
MECHANICAL DATA
Case: JEDEC DO-204AL molded plastic body
Terminals: Plated axial leads, solderable per MIL-STD-750,
Method 2026
Polarity: Color band denotes cathode end
Mounting Position: Any
Weight: 0.012 ounce,0.3 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
SYMBOLS
BA157
BA158
BA159D
UNITS
Maximum repetitive peak reverse voltage
V
RRM
400
600
800
Volts
Maximum RMS voltage
V
RMS
280
420
560
Volts
Maximum DC blocking voltage
V
DC
400
600
800
Volts
Maximum average forward rectified current
0.375" (9.5mm) lead length at T
A
=55°C
I
(AV)
1.0
Amp
Peak forward surge current
10ms single half sine-wave superimposed
I
FSM
20.0
Amps
on rated load at T
A
=25°C
Maximum instantaneous forward voltage at 1.0A
V
F
1.3
Volts
Maximum DC reverse current
at rated DC blocking voltage T
A
=25°C
I
R
5.0
µ
A
Maximum reverse recovery time
(NOTES 1)
t
rr
300
ns
Typical junction capacitance
(NOTE 2)
C
J
12.0
pF
Maximum operation junction temperature
T
J
-65 to +125
°C
Maximum storage temperature
T
STG
-65 to +150
°C
NOTES:
(1) Reverse recovery test conditions: I
F
=10mA, I
R
=10mA, I
rr
=1mA for 400 to 800 Volt devices
(2) Measured at 1.0MH
Z
and applied reverse voltage of 4.0 Volts
4/98
DO-204AL
Dimensions in inches and (millimeters)
0.107 (2.7)
0.080 (2.0)
0.034 (0.86)
0.028 (0.71)
DIA.
1.0 (25.4)
MIN.
1.0 (25.4)
MIN.
0.205 (5.2)
0.160 (4.1)
DIA.
0
25
50
75
100
125
150
175
0
0.2
0.4
0.6
0.8
1.0
1
10
100
0
5
10
15
20
0.4
0.6
1.0
1.2
1.4 1.6
2.0
0.01
0.1
1
10
20
0.1
1
10
100
1
10
100
0.01
0.1
1
10
100
0.1
1
10
100
0.8
20
60
80
100
0.01
1
10
100
0.1
40
0
1.8
RATINGS AND CHARACTERISTIC CURVES BA157 THRU BA159D
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
T
J
=25°C
f=1.0 MHz
Vsig=50mVp-p
REVERSE VOLTAGE, VOLTS
JUNCTION
CAPACITANCE, pF
FIG. 3 - TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
FIG. 1 - FORWARD CURRENT DERATING CURVE
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
AMBIENT TEMPERATURE,
°
C
FIG. 4 - TYPICAL REVERSE CHARACTERISTICS
PERCENT OF RATED PEAK REVERSE
VOLTAGE, %
INSTANTANEOUS
REVERSE
CURRENT,
MICROAMPERES
INSTANTANEOUS FORWARD CURRENT
AMPERES
AVERAGE FORWARD CURRENT
AMPERES
FIG. 2 - MAXIMUM NON-REPETITIVE PEAK FORWARD
SURGE CURRENT
NUMBER OF CYCLES AT 60H
Z
PEAK FORWARD
CURRENT
AMPERES
T
J
=25°C
PULSE WIDTH=300
µ
s
1% DUTY CYCLE
T
J
=100°C
T
J
=25°C
FIG. 6 - TYPICAL TRANSIENT THERMAL IMPEDANCE
t, PULSE DURATION, sec.
TRANSIENT THERMAL IMPEDANCE,
°
C/W
RESISTIVE OR
INDUCTIVE LOAD
T
J
=55
°
C
8.3ms SINGLE HALF
SINE-WAVE (JEDEC Method)
0.375" (9.5mm) LEAD LENGTH
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