lgsot08lt1g

LESHAN RADIO COMPANY, LTD.
Transient Voltage Suppressors for ESD Protection
General Description
The LGSOT08LT1G is a transient voltage suppressor
designed to protect components which are connected
to data and transmission lines against ESD. It clamps
the voltage just above the logic level supply for
positive transients, and to a diode drop below ground
for negative transients.
LGSOT08LT1G
S-LGSOT08LT1G
3
1
2
Applications
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z
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Computers
Printers
Communication systems
SOT– 23
Features
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Unidirectional Transil functions
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Low leakage current: IR max< 20 μA at VRM
300W peak pulse power(8/20μs)
Transient protection for data lines as per
IEC61000-4-2(ESD) 15KV(air) 8KV(contact)
IEC61000-4-5(Lightning) see IPPM below
We declare that the material of product
compliance with RoHS requirements.
S- Prefix for Automotive and Other Applications
Requiring Unique Site and Control Change
Requirements; AEC-Q101 Qualified and PPAP Capable.
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ORDERING INFORMATION
Device
LGSOT08LT1G
S-LGSOT08LT1G
Package
Shipping
SOT–23
3000/Tape & Reel
Absolute Ratings (Tamb=25°C )
Symbol
Parameter
Value
Units
PPP
Peak Pulse Power (tp = 8/20μs)
300
W
TL
Maximum lead temperature for soldering during 10s
260
°C
Tstg
Storage Temperature Range
-55 to +150
°C
Top
Operating Temperature Range
-40 to +125
°C
Tj
Maximum junction temperature
150
°C
IEC61000-4-2 air discharge
15
kv
IEC61000-4-2 contact discharge
8
Electrostatic discharge
VPP
Rev.O 1/5
LESHAN RADIO COMPANY, LTD.
LGSOT08LT1G,S-LGSOT08LT1G
Electrical Parameter
Symbol
Parameter
VRM
Stand-off voltage
VBR
Breakdown voltage
VCL
Clamping voltage
IRM
Leakage current
IPPM
Peak pulse current
Electrical Characteristics
Maximum
Minimum
Maximum
Maximum
Leakage
Breakdown
Clamping
Pulse Peak
Current
Voltage
Voltage
Current
@ VRM
1mA
VRM
IRM
VBR
V
µA
V
V
LGSOT04LT1G
4.0
20.0
5.0
LGSOT05LT1G
5.0
20.0
LGSOT08LT1G
8.0
LGSOT12LT1G
12.0
Rated
Stand-off
Part Numbers
Maximum
Capacitance
Voltage
1A
1)
5A
1)
tp=8/20us
0v, 1MHz
IPPM
C
V
A
pF
8.5
10.5
17
300
6.0
9.8
12.5
17
220
5.0
8.5
13.4
15.0
15
190
1.0
13.3
19.0
28.0
12
150
VCL
1).8/20 waveform used. (see fig2.)
Typical Characteristics
Fig1. Peak Pulse Power
VS Pulse Time
Rev.O 2/5
LESHAN RADIO COMPANY, LTD.
LGSOT08LT1G,S-LGSOT08LT1G
Fig2. Pulse Waveform
Fig3.Power Derating
Rev.O 3/5
LESHAN RADIO COMPANY, LTD.
LGSOT08LT1G,S-LGSOT08LT1G
Application Note
Electrostatic discharge (ESD) is a major cause of failure in electronic systems. Transient Voltage
Suppressors (TVS) are an ideal choice for ESD protection. They are capable of clamping the incoming transient
to a low enough level such that damage to the protected semiconductor is prevented.
Surface mount TVS offer the best choice for minimal lead inductance. They serve as parallel protection
elements, connected between the signal line to ground. As the transient rises above the operating voltage of the
device, the TVS becomes a low impedance path diverting the transient current to ground. The LGSOT08LT1G is
the ideal board evel protection of ESD sensitive semiconductor components.
The tiny SOT23 package allows design flexibility in the design of high density boards where the space
saving is at a premium. This enables to shorten the routing and contributes to hardening againt ESD.
Rev.O 4/5
LESHAN RADIO COMPANY, LTD.
LGSOT08LT1G,S-LGSOT08LT1G
SOT-23
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M,1982
2. CONTROLLING DIMENSION: INCH.
A
L
3
1
V
2
DIM
B S
G
C
D
H
K
J
MIN
0.1102
0.0472
0.0350
0.0150
0.0701
0.0005
0.0034
0.0140
0.0350
0.0830
0.0177
A
B
C
D
G
H
J
K
L
S
V
INCHES
MAX
0.1197
0.0551
0.0440
0.0200
0.0807
0.0040
0.0070
0.0285
0.0401
0.1039
0.0236
MILLIMETERS
MIN
MAX
2.80
3.04
1.20
1.40
0.89
1.11
0.37
0.50
1.78
2.04
0.013
0.100
0.085
0.177
0.35
0.69
0.89
1.02
2.10
2.64
0.45
0.60
0.037
0.95
0.037
0.95
0.079
2.0
0.035
0.9
0.031
0.8
inches
mm
Rev.O 5/5