DL4933 - DL4937
PRV : 50 - 600 Volts
Io : 1.0 Ampere
FEATURES :
* High current capability
*
*
*
*
*
*
High surge current capability
High reliability
Low reverse current
Low forward voltage drop
Fast switching for high efficiency
Pb / RoHS Free
Surface Mount Fast Recovery Rectifiers
MELF (Plastic)
Cathode Mark
φ
0.102 (2.6)
0.094 (2.4)
0.022(0.55)
0.205(5.2)
0.189(4.8)
Dimensions in inches and ( millimeters )
MECHANICAL DATA :
* Case : Molded plastic
* Terminals : Plated Terminals, solderable per MIL-STD-750
Method 2026
* Polarity : Color band denotes cathode end
* Mounting position : Any
* Weight : 0.116 gram
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%.
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
RATING
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Current , Ta = 55°C
Maximum Peak Forward Surge Current,
8.3ms Single half sine wave Superimposed
on rated load (JEDEC Method)
Maximum Peak Forward Voltage at I
F
= 1.0 Amp.
Maximum DC Reverse Current
at Rated DC Blocking Voltage
Ta = 25
°C
Ta = 100
°C
SYMBOL
V
RRM
V
RMS
V
DC
I
F(AV)
I
FSM
V
F
I
R
I
R(H)
Trr
DL4933
50
35
50
DL4934
100
70
100
DL4935
200
140
200
1.0
30
1.2
5.0
100
150
15
- 65 to + 150
- 65 to + 150
DL4936
400
280
400
DL4937
600
420
600
UNIT
V
V
V
A
A
V
µA
µA
ns
pf
°C
°C
Maximum Reverse Recovery Time ( Note 1 )
Typical Junction Capacitance ( Note 2 )
Junction Temperature Range
Storage Temperature Range
C
J
T
J
T
STG
Notes :
( 1 ) Reverse Recovery Test Conditions : I
F
= 0.5 A, I
R
= 1.0 A, Irr = 0.25 A.
( 2 ) Measured at 1.0 MHz and applied reverse voltage of 4.0 V
DC
Page 1 of 2
Rev. 02 : March 24, 2005
RATING AND CHARACTERISTIC CURVES ( DL4933 - DL4937 )
FIG.1 - REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
50
Ω
10
Ω
+ 0.5 A
D.U.T.
50 Vdc
(approx.)
1
Ω
PULSE
GENERATOR
( NOTE 2 )
OSCILLOSCOPE
( NOTE 1 )
0
- 0.25 A
Trr
+
- 1.0 A
SET TIME BASE FOR 50/100 ns/cm
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.
1 cm
FIG.2 - DERATING CURVE FOR OUTPUT
RECTIFIED CURRENT
AVERAGE FORWARD OUTPUT
CURRENT, AMPERES
1.0
30
FIG.3 - MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
PEAK FORWARD SURGE
CURRENT, AMPERES
8.3 ms SINGLE HALF SINE WAVE
24
Ta = 50
°
C
0.8
0.6
18
0.4
12
0.2
60Hz RESISTIVE OR INDUCTIVE LOAD
0
0
25
50
75
100
125
150
175
6
0
1
2
4
6
10
20
40
60 100
AMBIENT TEMPERATURE, (
°
C)
FIG.4 - TYPICAL FORWARD CHARACTERISTICS
FORWARD CURRENT, AMPERES
20
10
Pulse Width = 300
µs
2% Duty Cycle
1.0
T
J
= 25
°
C
NUMBER OF CYCLES AT 60Hz
FIG.5 - TYPICAL REVERSE CHARACTERISTICS
REVERSE CURRENT, MICROAMPERES
10
T
J
= 100
°
C
1.0
0.1
0.1
T
J
= 25
°
C
0.01
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0.01
0
20
40
60
80
100
120
140
FORWARD VOLTAGE, VOLTS
PERCENT OF RATED REVERSE
VOLTAGE, (%)
Page 2 of 2
Rev. 02 : March 24, 2005
电源技术
