LESHAN RADIO COMPANY, LTD.
1N4942 thru 1N4948
1.Feature & Dimensions
* Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
* High temperature metallurgically bonded construction
* Deffused junction
* Capable of meeting environmental standards of MIL-S-19500
* 1.0 A operation at T
A
=75°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
Fast Recovery Rectifiers
Reverse Voltage 200 to 1000V
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
We declare that the material of product
compliance with RoHS requirements.
3.Electrical Characteristic
Maximum Ratings & Thermal Characteristics Ratings at 25°C ambient temperature unless otherwise specified.
1N
1N
1N
1N
1N
Unit
Parameter Symbol
symbol
4942 4944 4946 4947 4948
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
= 75°C
V
RRM
V
RMS
V
DC
IF(AV)
200
140
200
400
280
400
600
420
600
1.0
25
55
–50 to +150
800
560
800
1000
700
1000
V
V
V
A
A
°C/W
°C
Peak forward surge current 8.3ms single half
I
FSM
sine-wave superimposed on rated load (JEDEC
Method)
Typical thermal resistance (Note 2)
RθJA
Operating junction and storage temperature range TJ, TSTG
Electrical Characteristics Ratings at 25°C ambient temperature unless otherwise specified.
1N
1N
1N
1N
1N
Parameter Symbol
symbol
4942 4944 4946 4947 4948
Maximum instantaneous forward voltage at 1.0A
V
F
1.3
5.0
Maximum DC reverse current TA = 25°C
IR
100
at rated DC blocking voltage TA = 100°C
150
250
Typical reverse recovery time (Note 1)
trr
500
15
Typical junction capacitance at 4.0V, 1MHz
CJ
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
Unit
V
µA
ns
PF
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
25
0.5
12.5
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
100
Tj=125℃
10
10
Tj=75℃
1.0
1.0
Tj=25℃
0.1
0.1
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)
0.01
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
2/3
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