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CHENMKO ENTERPRISE CO.,LTD
SURFACE MOUNT
SWITCHING DIODE ARRAY VOLTAGE 80 Volts CURRENT 250 mAmpere
APPLICATION
* Fast high speed switching
MMBD4448HADWPT
FEATURE
* Small surface mounting type. (SC-88/SOT-363) * High speed. (TRR=4.0nSec Max.) * Fast Switching Speed. * Ultra-Small Surface Mount Package. * For General Purpose Switching Applications. * High Conductance.
1.2~1.4
(1) (6)
SC-88/SOT-363
0.65 0.65
2.0~2.2
CONSTRUCTION
* Silicon epitaxial planar
MARKING
* DS
(4) 0.15~0.35 (3) 1.15~1.35
0.08~0.15 0.1 Min.
0.8~1.1 0~0.1 2.15~2.45
CIRCUIT
6
4
1
3
Dimensions in millimeters
SC-88/SOT-363
MAXIMUM RATINGES ( At TA = 25oC unless otherwise noted ) RATINGS Maximum Non-Repetitive Peak Reverse Voltage Maximum Repetitive Peak Reverse Voltage Maximum Working Peak Reverse Voltage Maximum DC Blocking Voltage Maximum RMS Voltage Maximum Average Forward Rectified Current Repetitive Peak Forward Current Peak Forward Surge Current at 1uSec. Total Capacitance Maximum Reverse Recovery Time Maximum Thermal Resistance Maximum Operating and Storage Temperaturd Range
o
SYMBOL VRM VRRM VRWM VDC VRMS IO IFRM @1Sec @1.0uSec IFSM CT trr R
JA
MMBD4448HADWPT 100 80 57 250 500 2.0 4.0 3.5 4.0 625 -65 to +150
UNITS Volts Volts Volts mAmps mAmps Amps pF nSec
o
C/W
o
TJ,TSTG
C
ELECTRICAL CHARACTERISTICS ( At TA = 25 C unless otherwise noted ) CHARACTERISTICS Maximum Instantaneous Forward Voltage Maximum Average Reverse Current (Note 1) @ IF= 5.0 mA @ IF= 100 mA VR= 20V @TJ=25oC VR= 75V @TJ=150oC VR= 25V @TJ=150oC SYMBOL VF IR MMBD4448HADWPT 0.72 1.0 25nA 50 30 UNITS Volts uAmps 2003-12
NOTES : 1. Short duration test pulse used to minimize self-hesting effect.
RATING CHARACTERISTIC CURVES ( MMBD4448HADWPT )
FIG. 1 - FORWARD CHARACTERISTICS 1 FORWARD CURRENT, (A) 10u
FIG. 2 - REVERSE CHARACTERISTICS
o Ta=125 C
REVERSE CURRENT, (A)
1u
o Ta=75 C
100m
o Ta= -40 C o Ta=0 C
100n 10n 1n
o Ta=25 C o Ta= 0 C o Ta= -40 C
10m
o Ta=25 C o Ta=75 C
1m
o Ta=125 C
0.1n 100u 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 FORWARD VOLTAGE, (V) 20 40 60 80 100 REVERSE VOLTAGE, (V)
FIG. 3 - TYPICAL JUNCTION CAPACITANCE
Ta=125 C f = 1MHZ
o
AVERAGE FORWARD CURRENT, (%)
3.0 TOTAL CAPACITANCE , (pF) 2.5 2.0 1.5 1.0 0.5 0
120 100 80 60 40 20 0
FIG. 4 - TYPICAL FORWARD CURRENT DERATING CURVE
0
6
12
18
24
30
36
40
0
25
50
75
100
125
150
REVERSE VOLTAGE, (V)
AMBIENT TEMPERATURE, (oC)

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