RU4 - RU4B
FAST RECOVERY RECTIFIERS
PRV : 400 - 800 Volts
Io : 1.5 Amperes
FEATURES :
* High current capability
* High surge current capability
* High reliability
* Low reverse current
* Low forward voltage drop
* Fast switching for high efficiency
MECHANICAL DATA :
* Case : DO-201AD Molded plastic
* Epoxy : UL94V-O rate flame retardant
* Lead : Axial lead solderable per MIL-STD-202,
Method 208 guaranteed
* Polarity : Color band denotes cathode end
* Mounting position : Any
* Weight : 1.21 grams
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating at 25
°
C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
SYMBOL RU4 RU4A RU4B UNIT
Maximum Peak Reverse Voltage VRM 400 600 800 V
Maximum Peak Reverse Surge Voltage VRSM 400 600 800 V
Maximum Average Forward Current Ta = 60 °CIF(AV) 1.5 ( 3.0 With Heatsink ) A
Maximum Peak Forward Surge Current
( 50 Hz, Half-cycle, Sine wave, Single Shot )
Maximum Forward Voltage at IF = 3 Amps. VF1.5 1.6 V
Maximum Reverse Current at VR = VRM Ta = 25 °CIR10 µA
Maximum Reverse Current at VR = VRM Ta = 100 °CIR(H) 300 500 µA
Maximum Reverse Recovery Time ( Note 1 ) Trr 0.4 µs
Junction Temperature Range TJ - 40 to + 150 °C
Storage Temperature Range TSTG - 40 to + 150 °C
Notes :
( 1 ) Reverse Recovery Test Conditions : IF = 10 mA, IRP = 10 mA.
Page 1 of 2 Rev. 02 : March 25, 2005
RATING
IFSM 50 A
DO-201AD
0.3.75 (9.53)
0.285 (7.24)
0.21 (5.33)
0.19 (4.83)
0.052 (1.32)
0.048 (1.22)
1.00 (25.4)
MIN.
1.00 (25.4)
MIN.
Dimensions in inches and ( millimeters )
* Pb / RoHS Free
RATING AND CHARACTERISTIC CURVES ( RU4 - RU4B)
FIG.1 - REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
FIG.2 - DERATING CURVE FOR OUTPUT FIG.3 - MAXIMUM NON-REPETITIVE PEAK
RECTIFIED CURRENT FORWARD SURGE CURRENT
0 25 50 75 100 125 150 175 1 2 4 6 10 20 40 60 100
AMBIENT TEMPERATURE, ( °C) NUMBER OF CYCLES AT 50Hz
FIG.4 - TYPICAL FORWARD CHARACTERISTICS FIG.5 - TYPICAL REVERSE CHARACTERISTICS
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Page 2 of 2 Rev. 02 : March 25, 2005
Ta = 25 °C
2.4
1.8
1.2
0.6
3.0
10 10
1.0
40
0
50
0
30
20
10
1.0
80
0.01
0.1
0.1
100
140
0
20
40
60
120
PERCENT OF RATED REVERSE
VOLTAGE, (%)
PEAK FORWARD SURGE
CURRENT, AMPERES
AVERAGE FORWARD OUTPUT
CURRENT, AMPERES
FORWARD CURRENT, AMPERES
REVERSE CURRENT, MICROAMPERES
TJ = 25 °C
TJ = 100 °C
20µS
200µS
FORWARD VOLTAGE, VOLTS
0.001
0.01
10 mA
IF
10 mA
IRP
100
Ω
NOTE : IF = IRP = 10 mA TO 1 mA
100 µF
Trr
0.1 IRP
specimen
Without Heatsink
With
5mm
5mm
20 x 20 x 1tCu
50
