
1.0 AMP SILICON RECTIFIERS
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating 25 C ambient temperature uniess otherwies specified.
Single phase half wave, 60Hz, 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
.375"(9.5mm) Lead Length at Ta=75 C
Peak Forward Surge Current, 8.3 ms single half sine-wave
FEATURES
MECHANICAL DATA
* Case: Molded plastic
* Epoxy: UL 94V-0 rate flame retardant
* Lead: Axial leads, solderable per MIL-STD-202,
             method 208 guranteed
* Polarity: Color band denotes cathode end
* Mounting position: Any
Weight: 0.34 grams
*
superimposed on rated load (JEDEC method)
Maximum Instantaneous Forward Voltage at 1.0A
Maximum DC Reverse Current                      Ta=25 C
at Rated DC Blocking Voltage                        Ta=100 C
Typical Junction Capacitance (Note 1)
Typical Thermal Resistance R JA (Note 2)
Operating and Storage Temperature Range T , T
BY127M                            BY133                             EM513            
UNITS
   1250                           1300                            1600               V        
     875                             910                            1120               V        
   1250                           1300                            1600               V        
1.0
30
 1.1
 5.0
 50
 15
50
-65     +150 
A
A
V
μ
A
μ
A
pF
C/W
NOTES:
1. Measured at 1MHz and applied reverse voltage of 4.0V D.C.
2. Thermal Resistance from Junction to Ambient .375" (9.5mm) lead length.
* Low forward voltage drop
* High current capability
* High reliability
* High surge current capability
BY127M, BY133, EM513
VOLTAGE RANGE
1250 to 1600 Volts
CURRENT
1.0 Ampere
DO-41
Dimensions in inches and (millimeters)
1.0(25.4)
    MIN.
1.0(25.4)
   MIN.
.205(5.2)
.166(4.2)
.034(.9) 
.028(.7) 
DIA.
.107(2.7)
.080(2.0)
   DIA.
J
STG
  C