FEATURES
Silicon epitaxial planar diode
High speed switching diode
500 mW power dissipation
These diodes are also available in glass case
DO-34. Mini-MELF
Weight: 0.004 ounces, 0.13 grams
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at
25
ambient temperature unless otherwise specified.
MAXIMUM RATINGS
UNITS
Reverse voltage
V
R
V
Peak reverse voltage
V
RM
V
Average forw ard rectified current
half w ave rec tif ication w ith resist.load
@
T
A
=
25
and f 50Hz
Forw ard surge current @ t<1s and T
J
=
25
I
FSM
mA
Pow er dissipation @ T
A
=
25
P
tot
mW
Junction temperature
T
J
Storage temperature range
T
STG
ELECTRICAL CHARACTERISTICS
UNITS
Forw ard voltage at I
F
=10mA
V
F
V
Leakage current
@ V
R
=20V
I
R
nA
@ V
R
=75V
I
R
ȝ
A
@ V
R
=20V T
J
=150
I
R
ȝ
A
Capacitance @ V
F
=V
R
=0V
C
J
pF
Voltage rise w hen s w itching on
tested w ith 50mA pulses
tp=0.1ȝs. Rise time<30ns. fp=5 to 100KHz
Reverse recovery time
from I
F
=10mA to I
R
=1mA
V
R
=6V . R
L
=100ȍ.
Thermal resistance junction to ambient
R
șJA
K/W
Rectification eff iciency at 100MHz,V
RF
=2V
Șv
-
1N4148
1)Valid prov ided that leads at a distance of 8 mm f rom case are kept at ambient temperature.
-
25.0
5.0
50.0
V
ns
1N4148
MECHANICAL DATA
SMALL SIGNAL SWITCHING DIODE
Case: DO-35, glas s case
REVERSE VOLTAGE : 75 V
CURRENT: 0.15 A
Polarity: Color band denotes cathode
I
AV
500.0
500
1)
mA
- -1.0
-
75.0
100.0
150.0
175
-55 --- +175
1)Valid prov ided that leads at a distance of 8 mm f rom case are kept at ambient temperature.
MIN TYP MAX
-
-
4
0.45 - -
350
1)
4
V
fr
- -2.5
t
rr
- -
-
- -
-
Document Number 1N4148
1.
DO-35(GLASS)
BL
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BL
GALAXY ELECTRICAL
Dimensions in millimeters
TJ =100
TJ =25
-2
10
-1
10
1
10
3
10
mA
IF
VF
2
10
0
12V
10S1
1
10
100
V=tp/T
0.1
A
-1
10
I
FSM
tp
-2
10
-3
10
-5
10
n=0
0.1
0.2
0.5
T=1/fp
tp
I
FSM
T
FIG.1 -- ADMISSIBLE POWER DISSIPATION
NNNNNN VERSUS AMBIENT TEMPERATURE FIG.2 -- FORWARD CHARACTERISTICS
RATINGS AND CHARACTERISTIC CURVES
1N4148
FIG.3 -- ADMISSIBLE REPETITIVE PEAK FORWARD CURRENT VERSUS PULSE DURATION
200
400
600
800
0 100 200
ć
1000
100
300
700
500
900
0
mW
Ptot
TA
Document Number 1N4148
2.
BL
GALAXY ELECTRICAL
www.gmesemi.com