SM05 datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > Discrete semiconductor> diode> SM05

SM05: Description300 W, UNIDIRECTIONAL, 2 ELEMENT, SILICON, TVS DIODE; CategoryDiscrete semiconductor diode; File Size288KB，7 Pages; ManufacturerUnion Semiconductor Limited; Websitehttp://www.union-ic.com/; Shanghai Yinglian Electronic Technology Co., Ltd. was established in 2001 and is a fabless integrated circuit design company. The company is committed to the research, development, design and sales of high-performance linear and mixed-signal integrated circuits, and its products are used in various electronic devices. The products of Shanghai Yinglian Electronic Technology Co., Ltd. bridge the analog world and the digital world by detecting, measuring, amplifying, converting power and providing circuit protection.

Parametric View All

SM05 Online Shopping

Suppliers	Part Number	Price	MOQ	In stock
	SM05	-	-	View	Buy Now

SM05 Overview

300 W, UNIDIRECTIONAL, 2 ELEMENT, SILICON, TVS DIODE

SM05 Parametric

Parameter Name	Attribute value
Maker	Union Semiconductor Limited
Reach Compliance Code	unknown

SM05 Preview

Download Datasheet

View All

SM05

Low Capacitance Quad Line ESD Protection Diode Arry

SM05 SOT23-3

General Description

The SM05 of transient voltage suppressors (TVS) are designed to protect components which are

connected to data and transmission lines from voltage surges caused by electrostatic discharge (ESD).

TVS diodes are characterized by their high surge capability, low operating and clamping voltages, and

fast response time. This makes them ideal for use as board level protection of sensitive semiconductor

components. The dual-junction common-anode design allows the user to protect one bidirectional

data line or two unidirectional lines. The low profile SOT23 package allows flexibility in the design

of “crowded” circuit boards. The SM05 will meet the surge requirements of IEC 61000-4-2 (Formerly

IEC801-2), Level 4, “Human Body Model” for air and contact discharge.

Applications

Cellular Handsets and Accessories

Portable Electronics

Industrial Controls

Set-Top Box

Servers, Notebook, and Desktop PC

Features

Transient protection for data & power lines to

IEC 61000-4-2 (ESD) ±15kV (air), ±8kV

(contact) Protects one bidirectional line or two

unidirectional lines

Working Voltages: 5V

Low clamping voltage

Solid-state silicon avalanche technology

Pin Configurations

Top View

M:Monthly Code

SM05

SOT23-3

: Mark Pin 1

___________________________________________________________________________

http://www.union-ic.com Rev.04 Oct.2011

1/6

SM05

Typical Operating Circuits

Detailed Description

Device Connection Options

The SM05 is designed to protect one bidirectional or two unidirectional data or I/O lines operating at

5 volts. Connection options are as follows: Bidirectional: Pin 1 is connected to the data line and pin 2

is connected to ground (Since the device is symmetrical, these connections may be reversed). The

ground connection should be made directly to a ground plane. The path length should be kept as short

as possible to minimize parasitic inductance. Pin 3 is not connected. Unidirectional: Data lines are

connected to pin 1 and pin 2. Pin 3 is connected to ground. For best results, this pin should be

connected directly to a ground plane on the board. The path length should be kept as short as possible

to minimize parasitic inductance.

Circuit Board Layout Recommendations for Suppression of ESD

Good circuit board layout is critical for the suppression of fast rise-time transients such as ESD. The

following guidelines are recommended (Refer to application note SI99-01 for more detailed

information): Place the TVS near the input terminals or connectors to restrict transient coupling.

Minimize the path length between the TVS and the protected line. Minimize all conductive loops

including power and ground loops. The ESD transient return path to ground should be kept as short as

possible. Never run critical signals near board edges. Use ground planes whenever possible.

Matte Tin Lead Finish

Matte tin has become the industry standard lead-free replacement for SnPb lead finishes. A matte tin

finish is composed of 100% tin solder with large grains. Since the solder volume on the leads is small

compared to the solder paste volume that is placed on the land pattern of the PCB, the reflow profile

will be determined by the requirements of the solder paste. Therefore, these devices are compatible

with both lead-free and SnPb assembly techniques. In addition, unlike other lead-free compositions,

matte tin does not have any added alloys that can cause degradation of the solder joint.

___________________________________________________________________________

http://www.union-ic.com Rev.04 Oct.2011

4/6

Recommended Resources

30Wx2 power connector

Circuit diagram using joint shed transistors in electronic ballasts

Frequency controlled switching power supply circuit diagram

555 time controlled password electronic doorbell circuit

flash alarm circuit

EEWORLD University ---- Wildfire FPGA Video Tutorial: WildFire FPGA video tutorial : https://training.eeworld.com.cn/course/5844[Wildfire] FPGA series teaching videos, real hands-on teaching, starting from 0Based on hardware: fully equipped with Wildfire...; 木犯001号 FPGA/CPLD

Show off my collection of sound cards: This is the sound card I bought in 1996. It was the popular Kao brand at the time. It had an ISA bus and was plugged into an Intel 80386 DX. I was so happy when my 80386 was upgraded with a 200M hard ...; 西门 Talking

【Node.js for Embedded Systems】Electronic version: File download:[hide][/hide]...; dcexpert MicroPython Open Source section

Rechargeable battery knowledge: Rechargeable battery knowledge NiMH batteries also have a memory effect, but it is not as obvious as NiCd batteries. Lithium batteries have the least obvious memory effect. The lack of obvious memory ...; fighting Analog electronics

Relationship between position PID and PWM duty cycle: Please teach me, I have been thinking about this problem for a long time but I still don't understand it. I am working on a DC motor control these two days. I use position PID and don't know how to co...; 张锋 Microcontroller MCU

A small question in the program: This is a program in 149 provided by TI that uses TA as the trigger source for ADC12. Since the OUTMOD_3 mode is selected, I don't understand why there is no setting for TACCR0? #include "msp430x14x.h...; zzbaizhi Microcontroller MCU

Popular Components