1n4448ws.pdf

1N4448WS
SMALL SIGNAL DIODE
VOLTAGE RANGE 75 Volts CURRENT 250 mAmpere
FEATURES
* Fast Switching Speed
* Surface Mount Package Ideally Suited for
Automatic Insertion
* For General Purpose Switching Applicationgs
* High Conductance
SOD-323
MECHANICAL DATA
Case: Molded plastic
Epoxy: UL 94V-O rate flame retardant
Lead: MIL-STD-202E method 208C guaranteed
Mounting position: Any
Weight: 0.004 grams
.071(1.800)
.063(1.600)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
.006(.150)
.014(.350)
.010(.250)
.055(1.400)
.047(1.200)
.106(2.700)
.098(2.500)
.003(.080)
*
*
*
*
*
MAX.039(1.000)
Ratings at 25 OC ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
REF .019(0.475)
.004(.100)
.000(.000)
For capacitive load, derate current by 20%.
Dimensions in inches and (millimeters)
MAXIMUM RATINGS (@T A =25 OC unless otherwise noted)
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
SYMBOL
1N4448WS
UNITS
VRM
VRRM
VRWM
VR
VRMS
IFM
IO
100
Volts
75
Volts
53
500
250
mAmps
mAmps
Volts
IFSM
4.0
2.0
Amps
Typical Reverse Recovery Time
T rr
4
nS
Typical Junction Capacitance
CJ
4
pF
Maximum Power Dissipation
PD
RqJA
200
mW
Typical Thermal Resistance
Operating and Storage Temperature Range
TJ,TSTG
ELECTRICAL CHARACTERISTICS (@T A =25 OC unless otherwise noted)
SYMBOL
CHARACTERISTICS
Maximum Instantaneous Forward Voltage
Maximum Instantaneous Peverse Current
@IF=1.0mA
@IF=10mA
@IF=50mA
@IF=150mA
@VR=20V
@VR=75V
NOTE : "Fully ROHS Compliant", "100% Sn plating (Pb-free)".
VF
IR
315
-65 to + 150
O
C/W
O
C
1N4448WS
UNITS
0.715
0.855
1.0
1.25
Volts
25
nAmps
2.5
uAmps
VC 2008-02
RATING AND CHARACTERISTICS CURVES ( 1N4448WS )
100
IF, FORWARD CURRENT (mA)
Pd, POWER DISSIPATION (mW)
300
200
100
0
0
50
25
75
125
100
Ta=50OC
Ta=85OC
1
0
600
800
1000
VF, FORWARD VOLTAGE (mV)
Figure.1 Power Derating Curve
Figure.2 Typical Forward Chatacteristics
10.0
trr, REVERSE RECOVERY TIME(nS)
2.5
Ta=100OC
1.0
Ta=75OC
0.10
Ta=50OC
Ta=25OC
Ta=0 C
O
0.01
Ta=-30 C
O
0
20
60
40
2.0
1.5
1.0
0.5
0
80
VR, REVERSE VOLTAGE (V)
Figure.3 Typical Reverse Characteristics
2
0
4
3
2
1
0
1
8
10
Figure.4 Reverse Recovery Time vs Forward Current
f=1 MHz
0
6
IF, FORWARD CURRENT (mA)
4
CT, TOTAL CAPCITANCE (pF)
IR, LEAKAGE CURRENT (A)
400
200
TA, AMBIENT TEMPERATURE ( C)
O
0.001
Ta=0OC
Ta=30OC
0.1
150
Ta=25OC
10
2
3
4
IF, FORWARD CURRENT (mA)
5
6
Figure.5 Total Capacicance vs Reverse Voltage
DISCLAIMER NOTICE
Rectron Inc reserves the right to make changes without notice to any product
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.
Rectron products are not designed, intended or authorized for use in medical,
life-saving implant or other applications intended for life-sustaining or other related applications where a failure or malfunction of component or circuitry may directly or indirectly cause injury or threaten a life without expressed written approval of Rectron Inc. Customers using or selling Rectron components for use in
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