Frontier Electronics Corp.
667 E. COCHRAN STREET, SIMI VALLEY, CA 93065
TEL: (805) 522-9998
FAX: (805) 522-9989
E-mail:
frontiersales@frontierusa.com
Web:
http://www.frontierusa.com
CHIP HIGH SPEED SWITCHING DIODES
SN4148-LFR
FEATURES
DESIGNED FOR MOUNTING ON SMALL SURFACE
HIGH SPEED
HIGH MOUNTING CAPABILITY , STRONG SURGE
WITHSTAND , HIGH RELIABILITY
ROHS
0.124 ( 3.15 )
0.116 ( 2.95 )
0.020 ( 0.5 ) Typ.
0.010 ( R0.25 ) Typ.
0.063 ( 1.6 )
0.055 ( 1.4 )
MECHANICAL DATA
CASE: 1206(3216),MOLDED PLASTIC, DIMENSIONS IN MILLIMETERS
TERMINALS: SOLDER PLATED , SOLDERABLE PER
MIL-STD-750 , METHOD 2026
POLARITY :INDICATED BY CATHODE BAND
MOUNTING POSITION: ANY
0.043 ( 1.1 )
0.031 ( 0.8 )
RATINGS
REVERSE VOLTAGE
PEAK REVERSE VOLTAGE
RECTIFIED CURRENT（AVERAGE）
HALF WAVE RECTIFICATION WITH RESIST LOAD
AT T
amb
＝25℃
AND f
≧ 50HZ （NOTE 1）
SURGE FORWARD CURRENT AT T
P =
1μ S AND T
J
＝25℃
SURGE FORWARD CURRENT AT T
P =
1 S AND T
J
＝25℃
POWER DISSIPATION AT T
amb
=25℃
JUNCTION TEMPERATURE
STORAGE TEMPERATURE RANGE
SYMBOL
V
R
V
RM
I
O
SN4148-LFR
75
100
UNITS
V
V
150
4.0
1.0
350
175
- 55 TO + 175
mA
I
FSM
PD
T
J
T
S
mA
mW
℃
℃
CHARACTERISTICS T
J
=25℃
FORWARD VOLTAGE AT I
F
=10mA
LEAKAGE CURRENT AT V
R
=20V
AT V
R
=75V
REVERSE BREAKDOWN VOLTAGE
TESTED WITH 100μA PULSES
CAPACITANCE AT V
F
=V
R
=0
REVERSE RECOVERY TIME
FROM I
F
=10mA TO I
R
=1mA V
R
=6V R
L
=50Ω
NOTE
：
1. LEADS KEPT AT AMBIENT TEMP.
SYMBOL
V
F
I
R
I
R
V
R
C
TOT
T
RR
MIN
-
-
-
100
-
-
TYP
-
-
-
-
-
-
MAX
1
25
2.5
-
4
4
UNITS
V
nA
μA
V
PF
nS
SN4148-LFR
Page: 1
RATINGS AND CHARACTERISTIC CURVE SN4148-LFR
FIG. 1 -FORWARD CHARACTERISTICS
FIG. 2 -REVERSE CHARACTERISTICS
100u
150℃
FORWARD CURRENT (mA)
REVERSE CURRENT (A)
1000
125℃ 75℃ 25℃ -25℃
10u
125℃
100
1u
75℃
10
100n
25℃
1
0
0.2 0.4
0.6
0.8
1.0
1.2
1.4
FORWARD VOLTAGE (V)
10n
0 10 20 30
40 50
60 70
REVERSE VOLTAGE (V)
80
FIG. 3 -CAPACITANCE BETWEEN
TERMINALS CHARACTERISTICS
FIG. 4 -DERATING CURVE
5.0
CAPACITANCE
BETWEEN
4.0
3.0
2.0
1.0
F=1MHZ
Ta=25℃
120
100
Io CURRENT %
80
60
40
20
TERMINALS (A)
0
0
2
4
6
8
10 12
REVERSE VOLTAGE ( V )
14
0
0
25
50
75
100 125
150 175 200
AMBIENT TEMPERATURE ( Ta℃)
SN4148-LFR
Page: 2
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