LESHAN RADIO COMPANY, LTD.
L1SS181LT1 –1/3
Ultra High Speed Switching
Application
L1SS181LT1
1
SOT –23
2
3
zLow forward voltage : VF (3) = 0.92V (typ.)
zFast reverse recovery time : trr = 1.6ns (typ.)
zSmall total capacitance : CT= 2.2pF (typ.)
Maximum Ratings (TA = 25°C)
Characteristic Symbol Rating Unit
Maximum (peak) reverse voltage VRM 85 V
Reverse voltage VR80 V
Maximum (peak) forward current IFM 300 * mA
Average forward current IO100 * mA
Surge current (10ms) IFSM 2 * A
Power dissipation P 150 mW
Junction temperature Tj125 °C
Storage temperature range Tstg -55~+125 °C
* : Unit rating. Total rating = Unit rating × 1.5.
Electrical Characteristics (TA = 25°C)
Characteristic Symbol Test
Circuit Test Condition Min Typ. Max Unit
VF (1) –I
F= 1mA – 0.61 –
Forward voltage VF (2) –I
F= 10mA – 0.74 – V
VF (3) –I
F= 100mA – 0.90 1.20
Reverse current IR (1) –V
R= 30V – – 0.1 µA
IR (2) –V
R= 80V – – 0.5
Total capacitance CT–V
R= 0, f = 1MHz– 2.2 4.0 pF
Reverse recovery time trr –I
F= 10mA (Fig.5) – 1.6 4.0 ns
3
ANODE
CATHODE
1
2
CATHODE
Driver Marking
L1SS181LT1 = A3
LESHAN RADIO COMPANY, LTD.
L1SS181LT1 –2/3
L1SS181LT1
Fig.1 FORWARD VOLTAGE VF(V)
Fig.4 FORWARD CURRENT IF(mA)
Fig.3 REVERSE VOLTAGE VR(V)
00.20.40.60.81.01.2
0.31310301000.10.3131030
25 -25
2.5
2.0
1.5
1.0
0.5
0
100
50
30
10
5
3
1
0.5
Fig.5 Reverse recovery time (trr) test circuit
0INPUT
-6V
50ns
0.01 F DUT
E
OUTPUT
OSCILLOSCOPE
(RIN=50 )
PULSE GENERATOR
(ROUT=50 )
Ta=25
Fig.5
f=1MHz
Ta=25
IF=10mA
0
IR
trr
0.1IR
OUTPUT WAVEFORM
Fig.2 REVERSE VOLTAGE VR(V)
020406080
75
50
25
10
1
100n
10n
1n
Ta=100
Electrical characteristic curves
LESHAN RADIO COMPANY, LTD.
L1SS181LT1 –3/3
L1SS181LT1
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M,1982
2. CONTROLLING DIMENSION: INCH.
INCHES MILLIMETERS
DIM MIN MAX MIN MAX
A0.1102 0.1197 2.80 3.04
B0.0472 0.0551 1.20 1.40
C0.0350 0.0440 0.89 1.11
D0.0150 0.0200 0.37 0.50
G0.0701 0.0807 1.78 2.04
H0.0005 0.0040 0.013 0.100
J0.0034 0.0070 0.085 0.177
K0.0140 0.0285 0.35 0.69
L0.0350 0.0401 0.89 1.02
S0.0830 0.1039 2.10 2.64
V0.0177 0.0236 0.45 0.60
PIN 1. BASE
2. EMITTER
3. COLLECTOR
SOT
-
23
D
J
K
L
A
C
BS
H
G
V
12
3
mm
inches
0.037
0.95
0.037
0.95
0.079
2.0
0.035
0.9
0.031
0.8
