FAST RECOVERY RECTIFIER
VOLTAGE RANGE 400 to 1000 Volts CURRENT 1.0 Ampere
RECTRON
SEMICONDUCTOR
TECHNICAL SPECIFICA TION
FEATURES
* Fast switching
* Low leakage
* Low forward voltage drop
* High current capability
* High surge capability
* High reliability
MECHANICAL DATA
* Case: Molded plastic
* Epoxy: Device has UL flammability classification 94V-O
* Lead: MIL-STD-202E method 208C guaranteed
* Mounting position: Any
* Weight: 0.33 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 oC ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
ELECTRICAL CHARACTERISTICS
(At TA = 25oC unless otherwise noted)
BA157
THRU
BA159
DO-41
MAXIMUM RATINGS
(At TA = 25oC unless otherwise noted)
NOTES : 1. Test Conditions: IF = 0.5A, IR = -1.0A, IRR = - 0.25A
2. Measured at 1 MH
Z
and applied reverse voltage of 4.0 volts
Dimensions in inches and (millimeters)
2002-3
RATINGS
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
at T
A
= 75
o
C
Peak Forward Surge Current 8.3 ms single half sine-wave
superimposed on rated load (JEDEC method)
Typical Junction Capacitance (Note 2)
Operating and Storage Temperature Range
SYMBOL
V
RRM
V
DC
I
O
I
FSM
C
J
T
J
, T
STG
V
RMS
Volts
Volts
Volts
Amps1.0
30
15
-65 to + 150
Amps
pF
0
C
600
420
600
1000
700
1000
UNITS
BA158 BA159
at Rated DC Blocking Voltage T
A
= 25
o
C
CHARACTERISTICS
Maximum Full Load Reverse Current Full Cycle
Average, .375” (9.5mm) lead length at T
L
= 55
o
C
Maximum Reverse Recovery Time (Note 1)
V
F
SYMBOL
I
R
trr
UNITS
1.3
5.0
100
250
uAmps
uAmps
nSec
Maximum DC Reverse Current
Maximum Instantaneous Forward Voltage at 1.0A DC Volts
BA158 BA159
1.0 (25.4)
MIN.
.166 (4.2)
.205 (5.2)
1.0 (25.4)
MIN.
.107 (2.7)
.080 (2.0) DIA.
.034 (0.9)
.028 (0.7) DIA.
BA157
400
280
400
BA157
RECTRON
RATING AND CHARACTERISTIC CURVES ( BA157 THRU BA159 )
JUNCTION CAPACITANCE, (pF)
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
REVERSE VOLTAGE, ( V )
200
100
60
40
20
10
6
4
2
1.1 .2 .4 1.0 2 4 10 20 40 100
TJ = 25
trr
+0.5A
0
-0.25A
-1.0A
1cm SET TIME BASE FOR
50/100 ns/cm
FIG. 6 - TEST CIRCUIT DIAGRAM AND REVERSE
50
NONINDUCTIVE 10
NONINDUCTIVE
D.U.T
25 Vdc
(approx)
( - )
( - )
( + )
( + )
1
NON-
INDUCTIVE
OSCILLOSCOPE
(NOTE 1)
PULSE
GENERATOR
(NOTE 2)
NOTES:
1 Rise Time = 7ns max. Input Impedance =
1 megohm. 22pF.
2. Rise Time = 10ns max. Souce Impedance =
50 ohms.
RECOVERY TIME CHARACTERISTIC
FIG. 1 - TYPICAL FORWARD CURRENT
AVERAGE FORWARD CURRENT, (A)
AMBIENT TEMPERATURE, ( )
DERATING CURVE
1.0
.8
.6
.4
.2
00 25 50 75 100 125 150 175
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
FIG. 3 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
INSTANTANEOUS FORWARD CURRENT, (A)
INSTANTANEOUS FORWARD VOLTAGE, (V)
TJ = 25
Pulse Width=300uS
1% Duty Cycle
20
10
3.0
1.0
0.3
0.1
.03
.010.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
FIG. 4 - TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS REVERSE CURRENT, (uA)
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
TJ = 25
10
.01
.02
.04
.06
.1
.2
.4
.6
1.0
2
4
6
0 20 40 60 80 100 120 140
FIG. 2 - MAXIMUM NON-REPETITIVE FORWARD
PEAK FORWARD SURGE
NUMBER OF CYCLES AT 60Hz
CURRENT, (A)
SURGE CURRENT
1 2 4 6 8 10 20 40 6080 100
50
40
30
20
10
0
8.3ms Single Half Sine-Wave
(JEDED Method)
