DL4937 SYNSEMI [SynSemi, Inc.], DL4937 Datasheet - Page 2

• Manufacturer Part Number: DL4937
• Description: Surface Mount Fast Recovery Rectifiers
• Manufacturer: SYNSEMI [SynSemi, Inc.]

Page 2 of 2
0.01
1.0
1.0
0.8
0.6
0.4
0.2
0.1
20
10
0
0
0
FIG.1 - REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
FIG.2 - DERATING CURVE FOR OUTPUT
FIG.4 - TYPICAL FORWARD CHARACTERISTICS
60Hz RESISTIVE OR INDUCTIVE LOAD
Pulse Width = 300 s
RATING AND CHARACTERISTIC CURVES ( DL4933 - DL4937 )
0.2
AMBIENT TEMPERATURE, ( C)
25
2% Duty Cycle
FORWARD VOLTAGE, VOLTS
T
0.4
RECTIFIED CURRENT
J
NOTES : 1. Rise Time = 7 ns max., Input Impedance = 1 megaohm, 22 pF.
= 25 C
+
50
0.6
(approx.)
50 Vdc
2. Rise time = 10 ns max., Source Impedance = 50 ohms.
3. All Resistors = Non-inductive Types.
75
0.8
50
1.0
100
1.2
125
1
D.U.T.
1.4
10
150
1.6
1.8
175
OSCILLOSCOPE
2.0
( NOTE 1 )
GENERATOR
( NOTE 2 )
PULSE
0.01
1.0
0.1
12
18
24
10
6
30
0
0
1
FIG.3 - MAXIMUM NON-REPETITIVE PEAK
FIG.5 - TYPICAL REVERSE CHARACTERISTICS
- 0.25 A
+ 0.5 A
- 1.0 A
20
2
PERCENT OF RATED REVERSE
NUMBER OF CYCLES AT 60Hz
FORWARD SURGE CURRENT
0
8.3 ms SINGLE HALF SINE WAVE
40
1 cm
4
VOLTAGE, (%)
6
SET TIME BASE FOR 50/100 ns/cm
60
Trr
10
T
T
J
J
80
= 100 C
Ta = 50 C
= 25 C
20
100
Rev. 02 : March 24, 2005
40
120
60 100
140