1N4148M
SMALL SIGNAL SWITCHING DIODES
DO-34(GLASS)
Fast switching diodes
0.5W power dissipation
0.79(2.0)
MIN.
1.02(26.0)
MIN.
0.106(2.90)
MAX.
Case: DO-34 case
Polarity : Color band denotes cathode end
Weight : Approx 0.13 gram
0.016(0.42)
TYP.
1.02(26.0)
MIN.
Characteristic
Maximum peak reverse voltage
Reverse voltage
Maximum average forward rectified current
hlaf Wave rectification with resistive load
at Tamb=25 and f 50Hz
Peak forward surge current <1S and Tj=25
Power dissipation at Tamb=25
Maximum forward voltage
Maximum leakage current
IF=10mA
At VR=20V / 25
VR=75V / 25
VR=20V / 150
Symbol
V
RM
V
R
1N4148M
100
75
150
1)
Units
Volts
Volts
I
o
(AV)
I
FSM
Ptot
500
1)
500
1.0
0.025
W
Volts
V
F
I
R
V
(BR)R
C
TOT
V
FR
TRR
5
50
uA
uA
uA
Volts
PF
Volts
Minimun reverse breakdown voltage tested
with 100
S
pulses
Capacitance at VF=VR=0
Voltage rise when switching on tested with 50mA
forward pluses Tp=0.1us. Rise time <30nS.
Fp=5~100KHz
Reverse recovery time from
IF=-IR=10mA to IRR=-1mA, VR=6V RL=100
Maximun thermal resistance from junction to ambient
100
4
2.5
4
350
1)
0.45
K/mW
Minimun Rectification efficiency at f=100MHz, vrf=2V
Junction temperature
Storage temperature range
TJ
TStg
200
-65to+200
1):Valid provided that leads at a distance of 8mm from case are kept at ambient temperature (DO-34)
RATINGS AND CHARACTERISTIC CURVES 1N4148M
FIG.1-ADMISSIBLE REPETITIVE PEAK FORWARD CURRENT
1.1
1.0
C tot(VR)
C tot(OV)
0.9
0.8
0.7
0
0.6
0
2
4
6
8
10
Tj=25
f=1KHz
FIG.2-RELATIVE CAPACITANCE
0.5
0.4
(W)
0.3
0.2
0.1
0
Ptot
25
50
75
100
125
150
175
200
AMBIENT TEMPERATURE
REVERSE VOLTAGE(VR)
10
10
3
FIG.3-FORWARD CHARACTERISTICS
FIG.4-DYNAMIC FORWARD RESISTANCE VERSUS
Tj=25
f=1KHz
2
10K
Tj=100
RF (
)
Tj=25
1K
100
10
1
-2
10
-1
IF(mA)
10
1
10
-1
10 0
-2
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
10
FORWARD VOLTAGE(V)
1
10
FORWARD CURRENT(mA)
10
2
FIG.5-ADMISSIBLE REPETITIVE PEAK FORARD CURRENT
10
V=0
V=0.1
T
P
I
V=T
P
/T T=1/f
P
I
FRM
T
T
I
FRM
(A)
1
V=0.2
0.1
-5
10
10
-4
V=0.5
10
-3
10
Tp(S)
-2
10
-1
1
10
2
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