
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load. 
For capacitive load, derate current by 20%.
ELECTRONICS INDUSTRY (USA) CO., LTD.
103 MOO 4, LATKRABANG EXPORT PROCESSING ZONE, LATKRABANG, BANGKOK 10520, THAILAND 
TEL. : (66 2) 326-0102, 739-4580  FAX. : (66 2) 326-0933  E-mail : eicfirst @ iname.com  http. : // www.eicsemi.com
FAST RECOVERY
DO-201AD
 * High current capability 
 * High surge current capability
0.21 (5.33)
0.19 (4.82)
1.00 (25.4) 
MIN.
 * High reliability 
 * Low reverse current 
 * Low forward voltage drop
0.375 (9.52)
0.285 (7.24)
 * Fast switching for high efficiency
1.00 (25.4) 
MIN.
 * Case : DO-201AD Molded plastic
0.052 (1.32)
0.048 (1.22)
 * Epoxy : UL94V-O rate flame retardant 
 * Lead : Axial lead solderable per MIL-STD-202, 
        Method 208 guaranteed
Dimensions in inches and ( millimeters )
 * Polarity : Color band denotes cathode end 
 * Mounting position : Any 
 * Weight : 1.21 grams
RATING
  Maximum Recurrent Peak Reverse Voltage VRRM 50 100 200 400 600 800 1000 Volts
SYMBOL FR501 FR502 FR503 FR504 FR505 FR506 FR507 UNITS
  Maximum RMS Voltage VRMS 35 70 140 280 420 560 700 Volts 
  Maximum DC Blocking Voltage VDC 50 100 200 400 600 800 1000 Volts 
  Maximum Average Forward Current 
  Half-Wave Resistive Load        Ta = 75 °C 
  Peak Forward Surge Current 
  8.3ms Single half sine wave Superimposed 
  on rated load (JEDEC Method) IFSM 300 Amps. 
  Maximum Peak Forward Voltage at IF = 5 Amps. VF 1.3 Volts 
  Maximum DC Reverse Current at VRRM IR 10 
  Maximum Reverse Recovery Time ( Note 1 ) Trr 150 250 500 ns 
  Junction Temperature Range TJ  - 65 to + 150 
  Storage Temperature Range TSTG  - 65 to + 150
    ( 1 ) Reverse Recovery Test Conditions : IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A.
IF(AV) 5.0 Amps.
µA
°C 
°C

8.3 ms SINGLE HALF SINE WAVE
ELECTRONICS INDUSTRY (USA) CO., LTD.
103 MOO 4, LATKRABANG EXPORT PROCESSING ZONE, LATKRABANG, BANGKOK 10520, THAILAND 
TEL. : (66 2) 326-0102, 739-4580  FAX. : (66 2) 326-0933  E-mail : eicfirst @ iname.com  http. : // www.eicsemi.com
    RATING AND CHARACTERISTIC CURVES ( FR501 - FR507 )
FIG.1 - REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
50 Ω 10 Ω
D.U.T.
50 Vdc
(approx)
1 Ω
NOTES : 1. Rise Time = 7 ns max., Input Impedance = 1 megaohm, 22 pF.
        2. Rise time = 10 ns max., Source Impedance = 50 ohms.
        3. All Resistors = Non-inductive Types.
OSCILLOSCOPE
( NOTE 1 )
PULSE
GENERATOR
( NOTE 2 )
Trr
SET TIME BASE FOR 50/100 ns/cm
FIG.2 - DERATING CURVE FOR OUTPUT FIG.3 - MAXIMUM NON-REPETITIVE PEAK 
      RECTIFIED CURRENT        FORWARD SURGE CURRENT
300
180
CURRENT, AMPERES
AVERAGE FORWARD OUTPUT 
    0 25 50 75 100 125 150 175      1 2 4 6 10 20 40 60 100
60Hz RESISTIVE LOAD
AMBIENT TEMPERATURE, ( °C)
CURRENT, AMPERES
PEAK FORWARD SURGE 
NUMBER OF CYCLES AT 60Hz
FIG.4 - TYPICAL FORWARD CHARACTERISTICS FIG.5 - TYPICAL REVERSE CHARACTERISTICS
20
10
Pulse Width = 300 µs
1% Duty Cycle
TJ = 25 °C
 FORWARD CURRENT, AMPERES
0.01 0.01 
    0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
FORWARD VOLTAGE, VOLTS
10
REVERSE CURRENT, MICROAMPERES
20
40 60 120
PERCENT OF RATED REVERSE
TJ = 100 °C
80
VOLTAGE, (%)
100 1400