D
S15001 Rev. D-2 1 of 2 DL4933-DL4937
Features
Glass Passivated Junction
Low Leakage
Low Forward Voltage Drop
High Current Capability
For Surface Mounted Application
Plastic Material UL Flammability
Classification Rating 94V-0
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Maximum Ratings and Electrical Characteristics
@ T
A
= 25
C unless otherwise specified
Characteristic
Symbol
DL4933
DL4934
DL4935
DL4936
DL4937
Units
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
V
RRM
V
RWM
V
R
50
100
200
400
600
V
RMS Reverse Voltage
V
R(RMS)
35
70
140
280
420
V
Maximum Average Forward Rectified Current @ T
T
=75C
I
O
1.0
A
Peak Forward Surge Current 8.3 ms half sine-wave
superimposed on rated load (JEDEC Method)
I
FSM
30
A
Maximum Instantaneous Forward Voltage
@ I
F
= 1.0A
V
F
1.2
V
Maximum DC Reverse Current at Rated Blocking Voltage
I
R
5.0
mA
Maximum Full Load Reverse Current Full Cycle Average
@ T
T
= 55
C
I
R
100
mA
Maximum Reverse Recovery Time (Note 1)
t
rr
200
ns
Typical Junction Capacitance (Note 2)
C
j
15
pF
Operating and Storage Temperature Range
T
j,
T
STG
-65 to +150
C
Notes:
1. Reverse Recovery Test Conditions: I
F
=1.0A, V
R
=30V, di/dt = 50 A/
ms.
2. Measured at 1.0MHz and Applied Reverse Voltage of 4.0V.
DL4933 - DL4937
1.0A SURFACE MOUNT FAST RECOVERY RECTIFIER
Mechanical Data
Case: MELF, Plastic
Terminals: Solderable per MIL-STD-202,
Method 208
Polarity: Cathode band
Approx Weight: 0.25 grams
Mounting Position: Any
Marking: Cathode Band Only
MELF
Dim
Min
Max
A
4.80
5.20
B
2.40
2.60
C
0.55 Nominal
All Dimensions in mm
C
A
B
D
S15001 Rev. D-2 2 of 2 DL4933-DL4937
0.01
0.1
1.0
10
0.6
0.8
1.0
1.2
1.4
T = 25C
Pulse Width = 300 ms
j
I
,
PEAK
F
O
R
W
ARD
SURGE
CURRENT
(A)
FSM
V , INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 1 Peak Forward Surge Current vs Forward Voltage
F
1
10
100
1
10
100
C
,
JUNCTION
CAP
ACIT
ANCE
(pF)
j
V , REVERSE VOLTAGE (V)
Fig. 4 Junction Capacitance vs Reverse Voltage
R
T = 25C
f = 1MHz
j
0
10
20
30
1
10
100
I
,
PEAK
FOR
W
ARD
SURGE
CURRENT
(A)
FSM
NUMBER OF CYCLES AT 60 Hz
Fig. 3 Peak Fwd Surge Current vs Number of Cycles at 60 Hz
T = 150C
Pulse Width
8.3 ms Single Half
Sine-Wave
j
0
0.2
0.4
0.6
0.8
1.0
25
50
75 100 125 150 175 200
I
,
A
VERAGE
FOR
W
ARD
RECTIFIED
CURRENT
(A
)
O
T , TERMINAL TEMPERATURE (C)
Fig. 2 Forward Derating Curve
T
Single Phase
Half Wave 60 Hz
Resistive or
Inductive Load
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