DIODE. 1N4937 Datasheet

1N4937 Datasheet PDF


Part 1N4937
Description 1.0A FAST RECOVERY DIODE
Feature ® WON-TOP ELECTRONICS Features  Diffused Junction  Low Forward Voltage Drop  High Current Capabil.
Manufacture WON-TOP
Datasheet
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1N4937
®
WON-TOP ELECTRONICS
Features
Diffused Junction
Low Forward Voltage Drop
High Current Capability
High Reliability
High Surge Current Capability
1N4933 – 1N4937
1.0A FAST RECOVERY DIODE
Pb
AB
A
Mechanical Data
Case: DO-41, Molded Plastic
Terminals: Plated Leads Solderable per
MIL-STD-202, Method 208
Polarity: Cathode Band
Weight: 0.35 grams (approx.)
Mounting Position: Any
Marking: Type Number
Lead Free: For RoHS / Lead Free Version,
Add “-LF” Suffix to Part Number, See Page 4
D
DO-41
Dim Min Max
A 25.4 —
B 4.06 5.21
C 0.71 0.864
D 2.00 2.72
All Dimensions in mm
C
Maximum Ratings and Electrical Characteristics @TA=25°C unless otherwise specified
Single Phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Characteristic
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
RMS Reverse Voltage
Average Rectified Output Current (Note 1) @TA = 75°C
Non-Repetitive Peak Forward Surge Current
8.3ms Single Half Sine-Wave Superimposed on
Rated Load (JEDEC Method)
Forward Voltage
Peak Reverse Current
At Rated DC Blocking Voltage
Reverse Recovery Time (Note 2)
@IF = 1.0A
@TA = 25°C
@TA = 100°C
Typical Junction Capacitance (Note 3)
Typical Thermal Resistance Junction to Ambient (Note 1)
Typical Thermal Resistance Junction to Lead (Note 1)
Operating Temperature Range
Storage Temperature Range
Symbol
VRRM
VRWM
VR
VR(RMS)
IO
IFSM
VFM
IRM
trr
CJ
R JA
R JL
TJ
TSTG
1N4933 1N4934 1N4935 1N4936 1N4937 Unit
50 100 200 400 600 V
35 70 140 280 420 V
1.0 A
30 A
1.2
5.0
100
200
12
55
25
-65 to +125
-65 to +150
V
µA
nS
pF
°C/W
°C
°C
Note: 1. Leads maintained at ambient temperature at a distance of 9.5mm from the case.
2. Measured with IF = 0.5A, IR = 1.0A, IRR = 0.25A.
3. Measured at 1.0 MHz and Applied Reverse Voltage of 4.0V D.C.
© Won-Top Electronics Co., Ltd.
Revision: September, 2012
www.wontop.com
1



1N4937
1N4933 – 1N4937
1.0
10
®
WON-TOP ELECTRONICS
0.8
1.0
0.6
0.4
0.2
Resistive or
Inductive Load
0
0 15 30 45 60 75 90 105 120 135 150
TA, AMBIENT TEMPERATURE (°C)
Fig. 1 Forward Current Derating Curve
30
Single Half-Sine-Wave
JEDEC Method
24
18
0.1
0.01
0
0.4 0.8 1.2 1.6 2.0
VF, INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
1000
100
TA = 100°C
10
12 1.0
TA = 25°C
6 0.1
0
1 10 100
NUMBER OF CYCLES AT 60Hz
Fig. 3 Forward Surge Current Derating Curve
25
20
0.01
0
20 40 60 80 100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE (%)
Fig. 4 Typical Reverse Characteristics
f = 1MHz
15
10
5
www.wontop.com
2
0
0.1
1 10
VR, DC REVERSE VOLTAGE (V)
Fig. 5 Typical Junction Capacitance
100
© Won-Top Electronics Co., Ltd.
Revision: September, 2012






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