5. All terms and symbols are consistent with ANS/IEEE C62.35
6. Transient Voltage Suppressors (TVS) are devices used to protect vulnerable circuits from electrical overstress such as that caused by electrostatic discharge, inductive load
switching and induced lightning. Within the TVS, damaging voltage spikes are limited by clamping or avalanche action of a rugged silicon pn junction which reduces the
amplitude of the transient to a nondestructive level. See Fig. 7 & Fig. 8
Rating and characteristic curves (3.0SMCJ SERIES)
Fig.1 - Pealk Pulse Power Rating Curve
Fig.2 - Pulse Derating Curve
Peak Pulse Power, P
PPM (KW)
100
Peak Pulse Power or Current
Derating in Percentage, %
100
75
10
50
1.0
0.1
0.1u
non-repetitive
pulse waveform
shown in Fig. 3
T
A
=25°C
1.0u
10u
100u
1.0m
10m
25
0
0
25
50
75
100
125
150 175
200
Pulse Width, td ( sec)
Ambient Temperature, T
A
(°C)
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Document ID
Issued Date
2008/02/10
Revised Date
2013/03/01
Revision
D
Page.
9
Page 4
DS-221815
Rating and characteristic curves (3.0SMCJ SERIES)
Peak Pulse Current, I
PPM (%)
150
tr=10us
pulse width (td) is defined
as the point where the peak
current decays to 50%
Junction Capacitance, C
J (pF)
Fig.3 - Pulse Waveform
Fig.4 - Typical Junction Capacitance
Bi
-
directional
@zero bias
Uni
-
directional
@zero bias
Uni
-
directional
@
V
RWM
100
peak value I
PPM
half value I
PPM
/2
10/1000 us waveform
50
Bi
-
directional
@
V
RWM
TJ
=
25ºC
f
=
1
.
0MHz
td
0
0
1.0
2.0
3.0
4.0
time, t (ms)
Breakdown Voltage, V
BR
(Volts)
Peak Forward Surge Current, I
FSM
(A)
Steady State Power Dissipation
(W)
Fig.5 - Steady State Power Derating Curve
8.0
300
Fig.6 - Maximum Non-Repetitive
Forward Surge Current
60Hz resistive
or inductive load
6.0
200
4.0
2.0
lead length
0.375 (9.5mm)
0.31x0.31x0.04
(8x8x1mm)
copper heat sinks
0
25
50
75
100
125
150 175
200
100
0
01
10
100
Lead Temperature, T
L
(°C)
Number of Cycles at 60Hz
Fig. 7 - Transients of several thousand volts can be
clamped to a safe level by the TVS
Fig. 8 - Transient current is divered to ground thru
Thanks again to EEWorld, as well as Silicon LabsArrow, for providing the Bluetooth development board.This is the second time I have reviewed a Silicon Labs board, and I feel that the craftsmanship is ...
[i=s]This post was last edited by dcexpert on 2014-12-14 20:55[/i] [align=left][font=微软雅黑][color=#000000][b]Resources related to ATMEL's wireless development board SAM R21 Xplained pro[/b][/color][/fo...
[i=s]This post was last edited by hehung on 2020-8-9 19:56[/i]After finally solving the problem of downloading the program, here is the link: https://bbs.eeworld.com.cn/thread-1135363-1-1.html
I want ...
[i=s]This post was last edited by damiaa on 2014-10-16 22:02[/i] EEPROM access, the previous example. It also includes FLASH reading and writing. In fact, they use the same functions and the same acce...
According to foreign media reports, Ford Motor has applied to the U.S. Patent and Social Security Administration (USPTO) for a patent for a remote vehicle control system that may be used in future ...[Details]
PV DC fuses are safety devices used to protect PV panels, inverters, and DC loads. To ensure their safety and reliability, they must be UL248 certified.
Before applying for UL248 certifi...[Details]
The intelligent driving community has its own rhythm. Some are busy pushing new versions and focusing on R&D, others are busy with publicity and promotion, and still others are immersed in mass pro...[Details]
A line scan lens is an industrial lens used with line scan cameras. Its imaging principle is to capture the image of the workpiece using a linear sensor and then perform digital signal processing t...[Details]
Electric vehicles are currently gaining momentum, but this is just a facade. Fuel-powered vehicles remain unchallenged. While electric vehicles boast unique advantages in environmental emissions an...[Details]
New energy vehicles are increasingly popular with consumers due to policies and energy conservation. Once you've purchased your vehicle, maintenance is essential. However, due to the different powe...[Details]
To understand why car engines need gearboxes, we must first understand the characteristics of different types of engines. An engine refers to a machine that can convert a form of energy into kineti...[Details]
Long ago, the lifespan of cars in my country was 15 years. Once a car reached 15 years old, it was forced to be scrapped. However, the policy was later changed. As long as the car does not exceed 6...[Details]
In recent years, with the application of the IEC61850 standard and the development and deployment of optoelectronic transformers, the concept of digital substations has been put into practical use ...[Details]
With the rapid advancement of automation technology, collaboration between robots is no longer just science fiction. Imagine dozens of machines moving goods in a warehouse without interfering with ...[Details]
The digital TV set-top box consists of a tuner, QAM demodulator, TS demultiplexer, MPEG-2 decoder, PAUNTSC video encoder, embedded CPU system and peripheral interfaces, CA module, and uplink data m...[Details]
UPS stands for Uninterruptible Power Supply, which includes energy storage devices. It is mainly used to provide uninterruptible power supply for devices that require high power stability.
...[Details]
In the electronics manufacturing industry, surface mount technology (SMT) placement machines are core equipment for production lines. However, with many different models available on the market, ch...[Details]
Through AI connection technology supported by Qualcomm X85 5G modem and RF and Qualcomm FastConnect 7900 mobile connection system, seamless switching can be achieved between cellular net...[Details]
In daily life, power transformers have different functions and uses due to different usage scenarios. The most common ones can be divided into: control transformers, isolation transformers, rectifi...[Details]
Development Kits Review Area
京公网安备 11010802033920号
EEWORLD
