LESHAN RADIO COMPANY, LTD.
1N4933G thru 1N4937G
1.Feature & Dimensions
* Plastic package has Underwriters Laboratory
*
*
*
*
*
*
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Flammability Classification 94V-0
High temperature metallurgically bonded construction
Cavity-free glass passivated junction
Capable of meeting environmental standards of MIL-S-19500
1.0 A operation at TA=55°C with no thermal runaway
For use in high frequency rectifier circuits
Fast switching for high efficiency
Typical IR less than 1.0µA
High temperature soldering guaranteed:
260°C/10 seconds
Glass Passivated Junction
Fast Recovery Rectifiers
Reverse Voltage 50 to 600V
Forward Current 1.0A
* 0.375" (9.5mm) lead length, 5 lbs. (2.3kg) tension
2.Mechanical Data
Case:
JEDEC DO-41, molded plastic body
Terminals:
Plated axial leads, solderable per
MIL-STD-750, Method 2026
Polarity:
Color band denotes cathode end
Mounting Position:
Any
Weight:
0.012 oz., 0.34 g
Handling precautin:None
3.Electrical Characteristic
Maximum Ratings & Thermal Characteristics Ratings
at 25°C ambient temperature unless otherwise specified.
Parameter Symbol
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current
0.375" (9.5mm) lead length at T
A
= 55°C
Peak forward surge current 8.3ms single half
sine-wave superimposed on rated load (JEDEC
Method)
Maximum full load reverse current, full cycle
average,0.375"(9.5mm) lead lengths at T
A
= 55°
C
Typical thermal resistance (Note 2)
symbol
V
RRM
V
RMS
V
DC
IF(AV)
I
FSM
1N49 1N49 1N49 1N49 1N49
33G 34G 35G 36G 37G
50
35
50
100
70
100
200
140
200
1.0
30
400
280
400
600
420
600
Unit
V
V
V
A
A
IR(AV)
RθJA
100
55
–50 to +150
1N49 1N49 1N49 1N49 1N49
33G 34G 35G 36G 37G
1.2
5.0
100
150
15
µA
°C/W
°C
Operating junction and storage temperature range TJ, TSTG
Electrical Characteristics Ratings
at 25°C ambient temperature unless otherwise specified.
Parameter Symbol
Maximum instantaneous forward voltage at 1.0A
Maximum DC reverse current TA = 25°C
at rated DC blocking voltage TA = 125°C
Typical reverse recovery time (Note 1)
Typical junction capacitance at 4.0V, 1MHz
symbol
V
F
IR
trr
CJ
Unit
V
µA
ns
PF
NOTES:
1. IF = 0.5A, IR = 1.0A, IRR = 0.25A
2. Thermal resistance from junction to ambient at 0.375” (9.5mm) lead length, P.C.B. mounted
1/3
LESHAN RADIO COMPANY, LTD.
4. Characteristic Curves
( TA = 25°C unless otherwise noted )
Fig. 1
–
Forward Current Derating Curve
Average Forward Rectified Current (A)
60 Hz
Resistive or
Inductive Load
Fig. 2
–
Maximum Non-repetitive Peak
Forward Surge Current
Average Forward Rectified Current (A)
TJ = TJ max
8.3ms Single Half Sine-wave
(JEDEC Method)
1.0
30
0.5
15
0.375" (9.5mm) Lead Length
0
0
25
50 75 100 125 150 175
Ambient Temperature, °C
0
1
10
Number of Cycles at 60Hz
100
Instantaneous Forward Current (A)
Instantaneous Reverse Current (µA)
100
Fig 3.
–
Typical Instantaneous Forward
Characteristics
TJ = 25°C
Pulse width = 300µs
1% Duty Cycle
Fig 4.
–
Typical Reverse Characteristics
10
Tj=125℃
10
1.0
Tj=75℃
1.0
0.1
Tj=25℃
0.1
0.01
0.01
0.6
0.8
1.0
1.2
1.4
1.6
Instantaneous Forward Voltage (V)
Fig 5.
–typical
transient thermal
impedance
Junction Capacitance (pF)
0.001
0
20
40
60
80
100
Percent of Rated Peak Reverse Voltage (%)
Fig 6.
–
Typical Junction Capacitance
20
10
TJ = 25°C
f = 1.0 MHz
Vsig = 50mVp-p
Transient thermal impedance(°C/W)
100
10
1.0
0.1
0.01
0.1
1.0
10
t,Pulse duration,sec
100
1.0
0.1
1
10
Reverse Voltage (V)
100
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Embedded System
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