LESHAN RADIO COMPANY, LTD.
1N4942-1N4948
GPP
RATING & CHARACTERISTIC CURVES OF FAST GPP DIODE
FIG.1–TEST CIRCUIT DIAGRAM AND
REVERSE RECOVERY TIME CHARACTERISTIC
50
Ω
NONINDUCTIVE
10
Ω
NONINDUCTIVE
D.U.T.
(-)
PULSE
G E N E R AT O R
(NOTE 2)
(+)
0
-0.25A
FIG. 2 – TYPICAL FORWARD
CURRENT DERATING CURVE
AVERAGE FORWARD CURRENT,(A)
1.25
1.00
0.75
0.50
0.25
0
25
50
75
100
125
150
175
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
+0.5A
Trr
(+)
25Vdc
(APPROX)
(-)
1Ω
OSCILLOSCOPE
NON.
(NOTE 1)
INDUCTIVE
NOTES:1.Rise Time=7ns max.
Input Impedance=1megohm.22pF.
2.Rise Time=10ns max.
Source Impedance=50 ohms.
-1.0A
SET TIME
BASE FOR 50/100ns/cm
1cm
AMBIENT TEMPER ATURE, (ºC)
FIG. 3 – TYPICAL REVERSE
CHARACTERISTICS
100
20
10
INSTANTANEOUS REVERSE CURRENT (µA)
FIG. 4 – TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
T
J
=150ºC
INSTANTANEOUS FORWARD CURRENT, (A)
10
T
J
=25ºC
1.0
T
J
=50ºC
1.0
.1
T
J
=25ºC
Pulse Width=300µs
1% Duty Cycle
0
.4
.6
.8
1.0
1.2
1.4
1.6
.01
0
20
40
60
80
100
120
140
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
INSTANTANEOUS FORWARD VOLTAGE,(V)
FIG. 5 – MAXINUM NON-REPETITIVE
FOWARD SURGE CURRENT
50
8.3ms Single Half Sine-Wave
(JEDEC Method)
JUNCTION CAPACITANCE,(pF)
FIG. 6 – TYPICAL JUNCTION CAPACITANCE
200
100
PEAK FORWARD SURGE CURRENT,(A)
60
40
20
10
T
J
=25ºC
6
4
2
1
40
30
20
10
0
1
5
10
50
100
.1
.2
.4
1.0
2
4
10
20
40
100
NUMBER OF CYCLES AT 60Hz
REVERSE VOLTAGE,(V)
37A–2/2
LRC [ LESHAN RADIO COMPANY ]
