BA157 THRU BA159
Features
· Plastic package has Underwrites Laboratory Flammability
Classification 94V-0
· Fast switching speed
· Diffused junction
· High current capability
· High temperature soldering guaranteed : 250℃/10 seconds,
0.375"(9.5mm) lead length, 5 lbs.(2.3kg) tension.
CURRENT 1.0 Ampere
VOLTAGE 400 to 1000 Volts
DO-41
0.107(2.7)
0.080(2.0)
DIA.
1.0(25.4)
MIN.
0.205(5.2)
0.166(4.2)
Mechanical Data
· Case : JEDEC DO-41 molded plastic body
· Terminals : Plated axial lead solderable per MIL-STD-750,
method 2026
· Polarity : Color band denotes cathode end
· Mounting Position : Any
· Weight : 0.012 ounce, 0.34 gram
1.0(25.4)
MIN.
0.034(0.9)
0.028(0.7)
DIA.
Dimensions in inches and (millimeters)
Maximum Ratings And Electrical Characteristics
(Ratings at 25℃ ambient temperature unless otherwise specified, Single phase, half wave 60Hz, resistive or inductive
load. For capacitive load, derate by 20%)
Symbols
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current
Rload at T
A
=50℃
Peak forward surge current 10ms single half
sine-wave superimposed on rated load at
Rload at T
A
=25℃
Maximum instantaneous forward voltage
at 1.0A
Maximum DC reverse current at rated DC
blocking voltage T
A
=25℃
Maximum reverse recovery time (Note 1)
Max. thermal resistance
Typical junction capacitance (Note 2)
Operating junction and storage
temperature range
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
V
F
I
R
Trr
R
θJA
C
J
T
J
T
STG
BA157
400
280
400
BA158
600
420
600
1.0
35.0
1.3
5.0
150
60
6.0
-65 to +150
BA159
1000
700
1000
Units
Volts
Volts
Volts
Amp
Amps
Volts
μA
250
ns
℃/W
pF
℃
Notes:
(1) Test conditions: I
F
=0.5A, I
R
=1.0A, I
rr
=0.25A.
(2) Measured at 1MHz and applied reverse voltage of 4.0 Volts.
RATINGS AND CHARACTERISTIC CURVES BA157 THRU BA159
FIG.1-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
FIG.2-TYPICAL FORWARD CURRENT
DERATING CURVE
1000
500
1.25
10mm
10mm
IF INSTANTANEOUS FORWARD CURRENT(mA)
100
50
IF
ma
x
T
j
=25℃
+VF-
t yp
1
IF AVERAGE FORWARD CURRENT (A)
0.8
0.75
R-Load
10
5
C-Load
0.50
1
0.5
0.25
0
0.4
0.8
1.2
1.6
0
25
50
75
100
125
150
175
VF INSTANTANEOUS FORWARD VOLTAGE DROP (V)
LEAD TEMPERATURE(
℃)
FIG.3-TYPICAL THERMAL IMPEDANCE
90
80
R
QJA
THERMAL RESISTANCE JUNCTION AMBIENT(℃/W)
x
ma
FIG.4-TYPICAL JUNCTION CAPACITANCE
10
8
T
j
=25℃
f=1MHz
CJ DIODE CAPACITANCE(pF)
60
typ
6
40
4
ty
p
20
l
l
2
1
1
0
10
20
30
35
10
100
1000
VR REVERSE VOLTAGE (V)
I,LEAD LENGTH (MM)
ARM Technology
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