EEWORLDEEWORLDEEWORLD

Part Number

Search

SMAJ140C

Description
Transient Voltage Suppressor
Categorysemiconductor    Discrete semiconductor   
File Size731KB,7 Pages
ManufacturerUN semiconductor
Websitehttp://www.unsemi.com.tw/
Download Datasheet View All

SMAJ140C Overview

Transient Voltage Suppressor

Surface Mount Transient Voltage Suppressors (TVS)
SMAJ Series
Description
The SMAJ series is designed specifically to protect sensitive electronic
equipment from voltage transients induced by lightning and other transient
voltage events.
5.0 To 440 V
400W
Uni-directional
Bi-directional
Features
u
u
u
u
u
u
u
u
u
u
u
u
u
u
u
u
u
u
u
For surface mounted applications in order to optimize board space
Low leakage
Uni and Bidirectional unit
Glass passivated junction
Low inductance
Excellent clamping capability
400W Peak power capability at 10
×
1000µs waveform Repetition rate
(duty cycle):0.01%
Fast response time: typically less than 1.0ps from 0 Volts to V
BR
min
Typical I
R
less than 5μA above 12V
High Temperature soldering: 260°C/40 seconds at terminals
Typical maximum temperature coefficient
ΔV
BR
= 0.1%
×
V
BR
@25°C×
ΔT
Plastic package has Underwriters Laboratory Flammability 94V-0
Matte tin lead–free Plated
Halogen free and RoHS compliant
Typical failure mode is short from over-specified voltage or current
Whisker test is conducted based on JEDEC JESD201A per its table
4a and 4c
IEC-61000-4-2 ESD 15kV(Air), 8kV (Contact)
ESD protection of data lines in accordance with IEC 61000-4-2
(IEC801-2)
EFT protection of data lines in accordance with IEC 61000-4-4
(IEC801-4)
Functional Diagram
Bi-directional
Cathode
Uni-direction
Anode
Applications
TVS devices are ideal for the protection of I/O interfaces, V
CC
bus and other vulnerable circuits used in Telecom, Computer,
Industrial and Consumer electronic applications.
Maximum Ratings
(T
A
=25℃ unless otherwise noted)
Parameter
Symbol
P
PPM
I
PP
P
M(AV)
I
FSM
V
F
T
J
, T
STG
Value
400
See Next Table
1.0
40
3.5/5.0
-55 to +150
Unit
Watts
Amps
Watt
Amps
Voltage
°C
Peak Pulse Power Dissipation with a 10/1000µs waveform (Fig.1)(Note
1), (Note 2)
Peak Pulse Current with a 10/1000µs waveform.(Note1,Fig.3)
Power Dissipation on Infinite Heat Sink at T
L
=75°C
Peak Forward Surge Current, 8.3ms Single Half Sine Wave (Note 3)
Maximum Instantaneous Forward Voltage at 25A for Unidirectional Only
(Note 4)
Operating junction and Storage Temperature Range.
Notes:
1. Non-repetitive current pulse, per Fig. 3 and derated above T
A
= 25°C per Fig. 2.
2. Mounted on 5.0mm x 5.0mm (0.03mm thick) Copper Pads to each terminal.
3. 8.3ms single half sine-wave, or equivalent square wave, Duty cycle = 4 pulses per minutes maximum.
4. V
F
< 3.5V for V
BR
< 200V and V
F
< 6.5V for V
BR
> 201V.
UN Semiconductor Co., Ltd.
Revision
October 18, 2013
www.unsemi.com.tw
1/7
@ UN Semiconductor Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
Wi-Fi audio design based on i.MX6UL
[i=s] This post was last edited by peixiuhui on 2017-5-19 16:35 [/i] [align=left]The functions of Wifi speakers: [/font] [/align] [align=left] [font=宋体] [/font]1. Through the SDIO [font=宋体] interface,...
peixiuhui TI Technology Forum
[Show] Received the temperature-controlled soldering iron
Received it today, looks good, haven't tried it yet. It's definitely good. Thanks EE, thanks maylove Unpacked condition:Packed condition;...
dontium Talking
Newbie help lithium battery charging indicator circuit
A lithium battery charging indicator circuit. I don't know how to determine the resistance of R0. Is R1 necessary? The voltage difference between R0 and the power supply is the voltage difference betw...
Mr.HH Power technology
Application of 555 time base integrated circuit
555 circuits can generally be classified into three categories in terms of application and working mode....
281643 DIY/Open Source Hardware
Why can't I open the TI reference design?
[url]http://www.ti.com.cn/cn/reference-designs/index.html[/url] In the past, when I opened this URL, I saw reference designs. Below them were reference designs. I went to check them every day and down...
whuer TI Technology Forum
LPC2103 SPI cannot send data
I wrote an SPI program , but when debugging , I can't jump out of the while(!(S0SPSR & 0x80)); loop. What's the reason? Is there a problem with the initialization? But I initialized it according to th...
eeleader MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 580  1068  744  1039  1994  12  22  15  21  41 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号