BA157 - BA159
1.0 AMP. Fast Recovery Rectifiers
DO-41
Features
High efficiency, Low VF
High current capability
High reliability
High surge current capability
Low power loss.
Mechanical Data
Cases: DO-41 Molded plastic
Epoxy: UL 94V-0 rate flame retardant
Lead: Pure tin plated, Lead free.,
solderable per MIL-STD-202, Method
208 guaranteed
Polarity: Color band denotes cathode end
High temperature soldering guaranteed:
260
o
C/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
o
C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%
Type Number
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
o
.375”(9.5mm) Lead Length @T
A
= 45 C
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
o
C
at Rated DC Blocking Voltage @ T
A
=125
o
C
Maximum Reverse Recovery Time ( Note 1 )
Typical Junction Capacitance ( Note 2 )
Typical Thermal Resistance
Operating Temperature Range
Symbol
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
V
F
I
R
Trr
Cj
R
θJA
T
J
T
STG
BA157
400
280
400
BA158
600
420
600
1.0
30
1.2
5.0
150
150
10
65
-65 to +150
-65 to +150
BA159
1000
700
1000
Units
V
V
V
A
A
V
uA
uA
nS
pF
o
250
Storage Temperature Range
1. Reverse Recovery Test Conditions: I
F
=0.5A, I
R
=1.0A, I
RR
=0.25A
Notes:
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
o
C
o
C
Version: A06
RATINGS AND CHARACTERISTIC CURVES (BA157 THRU BA159)
FIG.1- MAXIMUM FORWARD CURRENT DERATING
CURVE
1.0
1000
FIG.2- TYPICAL REVERSE CHARACTERISTICS
PER LEG
AVERAGE FORWARD CURRENT. (A)
INSTANTANEOUS REVERSE CURRENT. ( A)
0.75
100
Tj=125
0
C
0.5
0.25
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
0.375" (9.5mm)
Lead Length
0
25
50
75
100
o
10
Tj=75
0
C
0
125
150
175
AMBIENT TEMPERATURE. ( C)
1.0
Tj=25
0
C
70
FIG.3- MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
PEAK FORWARD SURGE CURRENT. (A)
60
50
40
30
20
0.1
8.3ms Single Half Sine Wave
JEDEC Method
0
20
40
60
80
100
120
140
PERCENT OF RATED PEAK REVERSE VOLTAGE. (%)
FIG.5- TYPICAL FORWARD CHARACTERISTICS
20
10
10
0
1
2
4
6
10
40
100
NUMBER OF CYCLES AT 60Hz
Tj=25
o
C
Pulse Width=300 s
1% Duty Cycle
INSTANTANEOUS FORWARD CURRENT. (A)
3.0
FIG.4- TYPICAL JUNCTION CAPACITANCE
90
1.0
JUNCTION CAPACITANCE.(pF)
50
0.3
30
20
0.1
Tj=25
0
C
10
0.03
1
1
2
4
6
10
20
REVERSE VOLTAGE. (V)
40
60
100
0.01
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
FORWARD VOLTAGE. (V)
FIG.6- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
50
NONINDUCTIVE
10
NONINDUCTIVE
+0.5A
DUT
(-)
PULSE
GENERATOR
(NOTE 2)
NON
INDUCTIVE
OSCILLOSCOPE
(NOTE 1)
(+)
0
-0.25A
trr
(+)
50Vdc
(approx)
(-)
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
Version: A06
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