BA157 THRU BA159
FAST SWITCHING PLASTIC RECTIFIER
VOLTAGE - 400 to 1000 Volts CURRENT - 1.0 Ampere

FEATURES
l High surge current capability
l Plastic package has Underwriters Laboratory
Flammability Classification 94V - O Utilizing
Flame Retardant Epo xy Molding Compound
l Void - free Plastic in a DO - 41 package
l 1.0 ampere operation at T A =55 with no thermal runaway
l Fast switching for high efficiency
l Exceeds environmental standards of MIL - S - 19500/228

MECHANICAL DATA
Case: Molded plastic, DO - 41
Terminals: Axial leads, solderable per MIL - STD - 202,
Method 208
Polarity: Band denotes cathode
Mou nting Position: Any
Weight: 0.012 ounce, 0.3 gram

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 current by 20%.
BA157 BA158 BA159 UNITS
Maximum Recurrent Peak Reverse Voltage 400 600 1000 V
Maximum RMS Voltage 280 420 700 V
Maximum DC Blocking Voltage 400 600 1000 V
Maximum Average Forward Rectified Current
.375"(9.5mm) lead length at T A =55
1.0 A
Pea k Forward Surge Current 8.3ms single half
sine
wave superimposed on rated load(JECEC method)
30 A
Maximum Forward Voltage at 1.0A 1.3 V
Maximum Reverse Current T J =25
at Rated DC Blocking Voltage T J =100
5.0
500
A

Typical Junction capacitance (Note 1) 12 P F
Maximum Reverse Recovery Time(Note 2) 150 250 ns
Operating and Storage Temperature Range - 55 to +150
NOTES:
1. Measured at 1 MHz and applied reverse voltage of 4.0 VDC
2. Reverse Recovery Test Conditions: I F =.5A, I R =1A, I rr =.25A

DO-41