Surface Mount Switching Diode
* High Speed 4ns
* Low Rever Leakage Current
* Surface Mount Package Ideally Suited for Automatic Insertion
Mechanical Data:
* Case: SOT-323, Molded Plastic
Features:
MMBD4448W
WEITRON
WEITRON
SWITCHING DIODE
250mAMPERS
100VOLTS
http://www.weitron.com.tw
* Terminals: Solderable per MIL-STD-202 Method 208
* Polarity: See Diagram
* Weight: 0.006 grams(approx)
SOT-323(SC-70)
1
2
3
Unit:mm
SOT-323 Outline Demensions
A
B
D
E
G
M
L
H
J
T OP VIE W
K
C
Dim
A
B
C
D
E
G
H
J
K
L
M
Min
0.30
1.15
2.00
-
0.30
1.20
1.80
0.00
0.80
0.42
0.10
Max
0.40
1.35
2.40
0.65
0.40
1.40
2.20
0.10
1.00
0.53
0.25
SOT-323
MMBD4448W
http://www.weitron.com.tw
WE IT R ON
Maximum Ratings
T her mal C har acter istics
Device Marking
Electrical Characteristics
(T
A
=25 C Unless Otherwise note)
Off C har acter istics
Rating
Symbol
Value
Unit
Characterictics
Symbol
Max
Unit
Characterictics
Symbol
Max
Unit
Reverse Voltage
Forward Current
VRM
I
F
100
250
Vdc
Vdc
mAdc
Adc
Total Device Dissipation
Thermal Resistance, Junction
to Ambient Air
Junction and Storage
Temperature
P
D
Rq
JA
TJ, T
stg
625
-55 to + 150
mW
C/W
C
Min
Forward Voltage
Reverse Breakdown Voltage
I =10uA
Reverse Voltage Leakage Curret
VR=75V
VR=20V
Revarse Recover Time
(I
F
=I
R
=10mAdc)
V
F
IR
Diode Capacitance
(V
R
=0, f=1.0MHz)
C
T
trr
4.0
4.0
Vdc
Vdc
uAdc
pF
ns
1. Valid provided that terminals are kept at ambient temperature.
Item
Marking
Eqivalent Circuitdiagram
MMBD4448W
KA3
1
3
200
WEITRON
Nop-Reptitive
Peak
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Vlotage
VRRM
VRWM
VR
75
*1
Non-Repetitive Peak
Forward Surge Current
@ t=1.0us
@ t=1.0s
FSM
4.0
2.0
*1
*1
IF=5.0mA
IF=10mA
IF=100mA
IF=150mA
0.720
0.855
1.00
1.25
0.025
2.5
I
R
V R
(BR)
75
PDF 
ZIP