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
[i=s] This post was last edited by dontium on 2015-1-23 11:33 [/i] [size=5] Let's talk about Chapter 6 first. The book introduces the use of three instruments to measure noise, namely: multimeter, osc...
[font=微软雅黑]Hello everyone, I have a few questions about DIY that I would like to discuss with you: [/font] [font=微软雅黑] [size=5][color=Red]1. What DIY do you expect to do? Please try to list specific p...
I am a newbie, majoring in mechanics, and I am currently working on my graduation project. I encountered a problem when debugging the sensor, which is a laser displacement sensor that uses the modbus ...
Question: The following program is used to generate a PWM wave with a variable duty cycle. It is expected that a waveform with a changing duty cycle can be observed on an oscilloscope, that is, the du...
In today's society, heart disease has seriously affected people's life safety. Many patients with sudden heart attacks are threatened because they cannot get timely treatment. Traditional ECG monito...[Details]
Ultrasonic tooth cleaning machines have been widely used in the medical field. Most ultrasonic tooth cleaning machines used at home and abroad now use analog oscillation circuits. There are the follow...[Details]
Currently, it is impossible to dynamically obtain patient information in medical monitoring. Once the patient's condition worsens, emergency treatment cannot be implemented in the first place, and the...[Details]
introduction
Cars are becoming an indispensable part of people's lives. However, what worries car users is that the theft of cars is increasing year by year. This paper aims to design a conven...[Details]
introduction
Controller Area Network (CAN) is a bus standard proposed by Bosch of Germany to solve the information communication between automotive electronic control units. With its exc...[Details]
High-speed serial communication networks are transmitting data and video information at unprecedented speeds. As transmission speeds increase, the evaluation of networks and their components become...[Details]
Most blood glucose meter implementations include some consumables such as test strips or chemical reagents, and the key to the operation of such equipment is to ensure that these test strips are re...[Details]
Abstract: This paper describes a design scheme of a tire pressure monitoring system for automobiles that uses a high-performance 8-bit microcontroller MC68HC908RF2 combined with sensors and RF tra...[Details]
Preface
Today, automotive electronic devices account for a large proportion of the entire vehicle. Although these electronic modules bring comfort and safety to car users, at the same time...[Details]
Preface
DS18B2 is generally used in conjunction with a single-chip microcomputer, and there are few reports on the interface between DSP and DS18B20. Therefore, this article introduces in deta...[Details]
introduction
In my country, digital TV programs have been tested in many provinces and cities. Since the users are basically using analog TV sets, which cannot receive digital signals, a r...[Details]
The following figure is a schematic diagram of the fiber optic video surveillance network solution of OnAccess@ of Shoumai Communication. It is completely based on video digitization and Ethernet t...[Details]
0 Introduction
The control and synchronization of chaotic systems is a hot topic in the current basic research of natural sciences. It has been widely used in the fields of communication, ...[Details]
When buying a laptop, in addition to the configuration, the most worrying thing is the heat dissipation of the laptop. As we all know, if the temperature of a certain part of the laptop is too high...[Details]
0 Introduction
An online laser power detection system is designed by using a single-chip microcomputer and AD7705 analog/digital converter combined with photoelectric detection technology....[Details]
Analogue and Mixed Signal
京公网安备 11010802033920号
EEWORLD
