SYNSEMI 1N4448

1N4448
HIGH SPEED SWITCHING DIODE
DO - 35 Glass
(DO-204AH)
FEATURES :
• High switching speed: max. 4 ns
• Reverse voltage:max. 75V
• Peak reverse voltage:max. 100 V
• Pb / RoHS Free
1.00 (25.4)
min.
0.079(2.0 )max.
0.150 (3.8)
max.
Cathode
Mark
1.00 (25.4)
min.
0.020 (0.52)max.
MECHANICAL DATA :
Case: DO-35 Glass Case
Weight: approx. 0.13g
Dimensions in inches and ( millimeters )
Maximum Ratings and Thermal Characteristics (Rating at
Parameter
25 °C ambient temperature unless otherwise specified.)
Symbol
Value
Unit
Maximum Peak Reverse Voltage
VRM
100
V
Maximum Reverse Voltage
VR
75
V
Maximum Continuous Forward Current
IF
200
mA
IF(AV)
150
mA
Maximum Average Forward Current (1)
Half Wave Rectification with Resistive Load , f ≥ 50 Hz
Maximum Surge Forward Current at t < 1s , Tj = 25°C
IFSM
0.5
A
Maximum Power Dissipation
PD
500
mW
Maximum Junction Temperature
TJ
175
°C
Storage Temperature Range
TS
-65 to + 175
°C
Note : (1) Valid provided that leads at a distance of 8mm from case are kept at ambient temperature
Electrical Characteristics (TJ = 25°C unless otherwise noted)
Parameter
Symbol
Reverse Current
IR
Forward Voltage
VF
Reverse Breakdown Voltage
Diode Capacitance
Reverse Recovery Time
Page 1 of 2
V(BR)R
Cd
Trr
Test Condition
VR = 20 V
VR = 20 V , Tj = 150 °C
IF = 10 mA
IR = 100 µA (pulsed)
f = 1MHz ; VR = 0
IF = 10 mA to IR = 1mA
VR = 6V , RL = 100 Ω
Min.
Typ.
Max.
Unit
-
-
25
50
nA
µA
-
-
1.0
V
100
-
-
V
-
-
4.0
pF
-
-
4.0
ns
Rev. 02 : March 25, 2005
RATING AND CHARACTERISTIC CURVES ( 1N4448 )
FIG. 1 MAXIMUM FORWARD CURRENT
VERSUS AMBIENT TEMPERATURE
FIG. 2 TYPICAL FORWARD VOLTAGE
1000
Forward Current , IF (mA)
AVERAGE FORWARD OUTPUT
CURRENT, mA
200
150
100
50
100
TJ = 25°C
10
1
0.1
0
0.01
0
100
200
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Forward Voltage , VF (V)
Ambient Temperature , Ta (°C)
FIG. 3 TYPICAL DIODE CAPACITANCE AS
A FUNCTION OF REVERSE VOLTAGE
1.2
Diode Capacitance , Cd (pF)
1.0
0.9
0.8
0.7
f = 1MHz;
TJ = 25°C
0.6
0.5
0.4
0
10
20
Reverse Voltage , VR (V)
Page 2 of 2
Rev. 02 : March 25, 2005