1n4448w.pdf

1N4448W
SMALL SIGNAL DIODE
VOLTAGE RANGE 75Volts CURRENT 250mAmpere
FEATURES
* Fast Switching Speed
* S urface mount Package Ideally Suited for
Automatic Insertion
* For General Purpose Switching A pplications
* High Conductance
SOD-123
MECHANICAL DATA
Case: Molded plastic
Epoxy: UL 94V-O rate flame retardant
Lead: MIL-STD-202E method 208C guaranteed
Mounting position: Any
Weight: 0.01 gram
.110(2.80)
.102(2.60)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
.006(.15)
.026(.65)
.018(.45)
.067(1.70)
.059(1.50)
.152(3.85)
.140(3.55)
.003(.08)
*
*
*
*
*
.049(1.25)
.041(1.05)
o
Ratings at 25 C ambient temperature unless otherwise specified.
REF .020(0.50)
Single phase, half wave, 60 Hz, resistive or inductive load.
.004(.10)
.000(.00)
For capacitive load, derate current by 20%.
Dimensions in inches and (millimeters)
MAXIMUM RATINGS (@ TA=25 OC unless otherwise noted)
SYMBOL
1N4448W
UNITS
VRM
VRRM
VRWM
VR
VRMS
IFM
IO
100
Volts
75
Volts
53
500
250
mAmps
mAmps
IFSM
4.0
2.0
Amps
Typical Reverse Recovery Time
Trr
4
nS
Typical Junction Capacitance
CT
4
Maximum Power Dissipation
PD
R θJA
400
RATINGS
Non-Repetitive Peak Reverse Voltage
Maximum Repetitive Peak Reverse Voltage
Maximum Working Peak reverse Voltage
Maximum DC Blocking Voltage
Maximum RMS Voltage
Maximum Forward Comtinuous Current
Maximum Average Forward Rectified Current
Non-Repetitive Peak Forward Surge Current
@t=1.0uS
@t=1.0S
Volts
pF
mW
O
TJ, TSTG
315
-65 to + 150
ELECTRICAL CHARACTERISTICS (@TA=25 OC unless otherwise noted)
SYMBOL
CHARACTERISTICS
1N4448W
UNITS
0.715
0.855
1.0
1.25
Volts
25
nAmps
Typical Thermal Resistance
Operating and Storage Temperature Range
Maximum Instantaneous Forward Voltage
@IF=1.0mA
@IF=10mA
@IF=50mA
@IF=150mA
VF
@VR=20V
Maximum Instantaneous Reverse Current
.
@VR=75V
IR
2.5
C/W
O
C
uAmps
2016-06
REV:B
RATING AND CHARACTERISTICS CURVES ( 1N4448W )
100
IF, FORWARD CURRENT (mA)
Pd, POWER DISSIPATION (mW)
300
200
100
0
Ta=25OC
10
Ta=50OC
Ta=85OC
1
Ta=30OC
0.1
0
50
25
75
125
100
0
150
200
O
TA, AMBIENT TEMPERATURE ( C)
FIG.1 Power Derating Curve
600
800
1000
FIG.2 Typical Forward Chatacteristics
2.5
trr, REVERSE RECOVERY TIME(nS)
IR, LEAKAGE CURRENT (A)
400
VF, FORWARD VOLTAGE (mV)
10.0
Ta=100OC
1.0
Ta=75OC
0.10
O
Ta=50 C
Ta=25OC
O
Ta=0 C
0.01
O
Ta=-30 C
0.001
Ta=0OC
0
60
40
20
80
VR, REVERSE VOLTAGE (V)
2.0
1.5
1.0
0.5
0
0
2
4
6
8
10
IF, FORWARD CURRENT (mA)
FIG.3 Typical Reverse Characteristics
FIG.4 Reverse Recovery Time vs.
vs. Forward Current
CT, TOTAL CAPCITANCE (pF)
4
f=1 MHz
3
2
1
0
0
1
2
3
4
5
6
IF, FORWARD CURRENT (mA)
FIG.5 Total Capacicance vs.
vss.Reverse
Reverse Voltage
RECTRON
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specification herein, to make corrections, modifications, enhancements or other
changes. Rectron Inc or anyone on its behalf assumes no responsibility or liability for any errors or inaccuracies. Data sheet specifications and its information
contained are intended to provide a product description only. "Typical" parameters which may be included on RECTRON data sheets and/ or specifications can and do vary in different applications and actual performance may vary over time. Rectron Inc does not assume any liability arising out of the application or
use of any product or circuit.
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