BA157G
THRU
BA159G
1.0 AMP. Glass Passivated Fast Recovery Rectifiers
Voltage Range
400 to 1000 Volts
Current
1.0 Ampere
Features
Low forward voltage drop
High current capability
High reliability
High surge current capability
DO-41
Mechanical Data
Cases: DO-41 Molded plastic
Epoxy: UL 94V-0 rate flame retardant
Lead: Axial leads, solderable per MIL-
STD-202, Method 208 guaranteed
Polarity: Color band denotes cathode end
High temperature soldering guaranteed:
260℃/10 seconds/.375”,(9.5mm) lead
lengths at 5 lbs.,(2.3kg) tension
Weight: 0.34 gram
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25℃ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%
Symbol
Type Number
BA157G
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
.375”(9.5mm) Lead Length @T
A
= 45℃
Peak Forward Surge Current, 8.3 ms Single
Half Sine-wave Superimposed on Rated Load
(JEDEC method )
Maximum Instantaneous Forward Voltage
@ 1.0A
Maximum DC Reverse Current @ T
A
=25℃
at Rated DC Blocking Voltage @ T
A
=100℃
Maximum Reverse Recovery Time ( Note 1 )
Typical Junction Capacitance ( Note 2 )
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
V
F
I
R
Trr
Cj
400
280
400
BA158G
600
420
600
1.0
30
1.2
5.0
100
BA159G
1000
700
1000
Units
V
V
V
A
A
V
uA
uA
nS
pF
O
150
250
15
Typical Thermal Resistance ( Note 3 )
R
θ
JA
60
Operating Temperature Range
T
J
-65 to +150
Storage Temperature Range
T
STG
-65 to +150
Notes: 1. Reverse Recovery Test Conditions: I
F
=0.5A, I
R
=1.0A, I
RR
=0.25A
2. Measured at 1 MHz and Applied Reverse Voltage of 4.0 Volts D.C.
3. Mount on Cu-Pad Size 5mm x 5mm on P.C.B.
C/W
℃
℃
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RATINGS AND CHARACTERISTIC CURVES (BA157G THRU BA159G)
FIG.1- MAXIMUM FORWARD CURRENT DERATING
CURVE
2.0
70
FIG.2- MAXIMUM NON-REPETITIVE PEAK FORDWARD
SURGE CURRENT
PEAK FORWARD SURGE CURRENT. (A)
60
50
40
30
20
10
0
AVERAGE FORWARD CURRENT. (A)
1.5
8.3ms Single Half Sine Wave
JEDEC Method
1.0
0.5
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
.375"(9.5mm)
Lead Length
0
25
50
75
100
o
0
125
150
175
AMBIENT TEMPERATURE. ( C)
1
2
4
6
10
40
100
NUMBER OF CYCLES AT 60Hz
FIG.3- TYPICAL FORWARD CHARACTERISTICS
20
10
FIG.4- TYPICAL JUNCTION CAPACITANCE
100
INSTANTANEOUS FORWARD CURRENT. (A)
JUNCTION CAPACITANCE.(pF)
60
3.0
1.0
Tj=25
o
C
Pulse Width=300 s
1% Duty Cycle
40
20
0.3
Tj=25
0
C
10
0.1
1
2
4
6
10
20
40
60
100
REVERSE VOLTAGE. (V)
.03
.01
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
FORWARD VOLTAGE. (V)
FIG.5- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
50W
NONINDUCTIVE
10W
NONINDUCTIVE
+0.5A
(-)
DUT
(+)
50Vdc
(approx)
(-)
PULSE
GENERATOR
(NOTE 2)
1W
NON
INDUCTIVE
OSCILLOSCOPE
(NOTE 1)
(+)
0
-0.25A
trr
NOTES: 1. Rise Time=7ns max. Input Impedance=
1 megohm 22pf
2. Rise Time=10ns max. Sourse Impedance=
50 ohms
-1.0A
1cm
SET TIME BASE FOR
5/ 10ns/ cm
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