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
The microcontroller is a digital system. Each logic part has a corresponding threshold level and noise tolerance. As long as the external noise does not exceed the tolerance value of the logic element...
The schematic diagram is referenced from the Internet. The 38k square wave is generated by a function signal generator. There is no signal at the receiving head. I don’t know what went wrong?...
[font=微软雅黑][size=4]Welcome the New Year, celebrate the New Year, and celebrate the New Year. ADI's 19th prize-winning download event will celebrate the New Year with you! [/size][/font]{:1_107:} [font...
Please help me, thanks. The problem is as follows: Platform: wince 6.0 + arm9 (the company's own SOC) Camera OV7680 and OV2650, both support the test application in the ce private directory, can previ...
Our company is a WAVECOM agent providing technical (software/hardware) support and DEMO. Contact information: QQ:1109321905 (please specify) 13554943187 Kavin (Zhong Qingfu)...
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]
Amidst the wave of intelligent automotive transformation, advanced driver assistance is gradually emerging from cutting-edge technology into the mainstream, becoming a new frontier of industry comp...[Details]
As AI accelerates across industries, the demand for data center infrastructure is also growing rapidly.
Keysight Technologies, in collaboration with Heavy Reading, released the "Beyo...[Details]
Charging is a familiar process for new energy vehicles, and as a source of battery energy, charging piles are crucial. New energy vehicle charging can be divided into fast charging and slow chargin...[Details]
Industrial computers with GPUs leverage powerful parallel processing to build deep learning models to analyze and respond to optical inputs. The systems develop an understanding of visual data to i...[Details]
1. Fault phenomenon and cause analysis
1. During the operation of the equipment, the expansion sleeve is subjected to a large torque, and the mating surfaces of the shaft and the sleeve move...[Details]
During daily operation of an R-type power transformer, the voltage used varies as the equipment being used adjusts. This raises the question: can the transformer change voltage at this point? The a...[Details]
"We have successfully launched the first version of our dedicated chip for EMB brake-by-wire. Second-generation samples have also been successfully completed, and we are actively planning a third-g...[Details]
A patent disclosed by Ford proposes replacing traditional segmented side curtain airbags with integrated full-width side curtain airbags that span the side of the vehicle and can be deployed simult...[Details]
The MCX E series is the most reliability- and safety-focused series in NXP's extensive MCX product portfolio.
With the launch of this series, NXP has further enriched its 5V-compatible MCU pr...[Details]
In the field of communications power supplies, AC/DC rectifier power supplies are called primary power supplies or basic power supplies, while DC/DC converters are called secondary power supplies. ...[Details]
In the period after the switching power supply achieved the "20 kHz" revolution in the 1970s, although improvements and enhancements were made in circuit technology, the development level of the se...[Details]
With the increasing popularity of automated equipment, linear modules, a common auxiliary device for automated equipment, have also seen a bright future. In particular, in recent years, many small ...[Details]
On August 21, it was reported that Intel's new generation of AI chip Jaguar Shores was recently exposed for the first time.
According to photos shared by Andreas Schilling, the Jaguar Shores t...[Details]
Renesas Electronics' new ultra-low-power RA4C1 MCU features advanced security and a dedicated peripheral set, making it ideal for metering and other applications.
The new product mee...[Details]
ARM Technology
京公网安备 11010802033920号
EEWORLD
