#StaticShielding

[leiditechelectonicpublishing]

Bring it back for scanning TVS advantage

Shanghai leiditech is helping customers with the rectification process，Often encountering clientsDC-DC (such as：TOLL TMI3494）Easy to be penetrated by surges，perhapsIC Easy to be broken down by static electricity。In selectingESD andTVStime，I found that only the ones I brought back for scanningESD andTVSTo meet certain needscircuit boardProtection requirements。

Shanghai leiditech R&D has launched a series of back to back scanning functionsESD andTVS ，For customers to choose from。The following curve chart and product details table Please refer to：

routine ESD Characteristic curve chart

1.Bring it back for scanning ESD The biggest feature is that when the voltage reachesVTAfter triggering the voltage，InstantlyESDThe clamping voltage at both ends is pulled down to the working voltageVRWMAnd trigger voltageVTBetween 1，This voltage is calledVh，Afterwards, as the current increases, the voltage gradually increases。

2.routineESDThe voltage varies withIPPAn increase in proportion to an increase in。

3.Bring it back for scanningESD advantage：

3.1 in the same wayIPPIn the case of，VCClamp voltage is higher than conventionalESDDevice low 30%more than，Achieve early release of energy，Greatly protectedICEven the safety of the entire circuit，Effectively reducing residual voltage in the backend。

3.2 HigherESDProtection level：Having better performanceESDProtection level，Capable of withstanding higher temperaturesESDVoltage pulse。

3.3 Lower leakage current：Has lower leakage current，Can achieve more energy-efficient designs。

Part Number ESD per IEC61000–4–2 (Air)/(Contact) “Vrwm

(V)” Vb(V） Vc（V)@1A VCmax@A Ir(uA) C(PF) Package Do you want to bring it back for scanning

ULC0321S ±25kV/±20kV 3.3 6.3 5.5 15V@5A 0.1 0.2 DFN0603 Bring it back for scanningESD

ULC0521CDN ±25kV/±20kV 5 8 5 6V@5A 0.2 1 DFN0603 Bring it back for scanningESD

ESD0521C ±25kV/±22kV 5 6 8 12V@3.5A 0.2 5 DFN0603 ordinaryESD

ULC0322P10LV ±30kV/±30kV 3.3 3.5 4 5V@10A 0.2 0.6 DFN0603 Bring it back for scanningESD

ESD3321C ±30kV/±30kV 3.3 3.8 6 10V@8A 0.01 25 DFN0603 ordinaryESD

ULC2421CS ±15kV/±15kV 24 30 4 6V@5A 0.2 0.5 DFN0603 Bring it back for scanningESD

ULC0342P26LV ±30kV/±30kV 3.3 3.5 6.5V@6A 10V@26A 0.5 1.5 DFN1006 Bring it back for scanningESD

ULC0542CDNH ±25kV/±20kV 5 8 5 6V@5A 0.2 0.5 DFN1006 Bring it back for scanningESD

ESDA05CP30 ±30kV/±30kV 5 6 7.5 12.5V@6A 0.5 15 DFN1006 ordinaryESD

ULC1811CDNH ±15kV/±15kV 18 22 4 6V@5A 0.2 0.5 DFN1006 Bring it back for scanningESD

ESDA05CP ±30kV/±30kV 5 6 8 8.5V@18A 0.5 25 DFN1006 Bring it back for scanningESD

ULC2442CS ±15kV/±15kV 24 30 4 6V@5A 0.2 0.5 DFN1006 Bring it back for scanningESD

ULC0342P ±30kV/±30kV 3.3 3.5 4 5V@10A 0.2 0.6 DFN1006 Bring it back for scanningESD

SDA3311DN ±30kV/±30kV 3.3 3.6 7.7@30A 9V@65A 0.5 120 DFN1006 Bring it back for scanningESD

SDA0301P ±30kV/±30kV 3.3 4 6 13V@16A 200 200 DFN1006 ordinaryESD

LC03CILVC ±30kV/±30kV 3.3 3.8 6 16V@25A 0.1 1 SOD-323 Bring it back for scanningESD

USSD0571P6W ±30kV/±30kV 5 6 7 11V@110A 1 350 DFN1610TN Bring it back for scanningESD

PUSB3FR4 ±15kV/±15kV 3.3 6 2.5 4V@7A 0.1 0.7/0.35 DFN2510P10 Bring it back for scanningESD

LM10S26CAT ±30kV/±30kV 26 28.9 ~ 31.9 24–27 300A 1 _ DO-218AB Bring it back for scanningTVS

LM10S28CAT ±30kV/±30kV 28 31.1 ~ 34.4 26–29 290A 1 _ DO-218AB Bring it back for scanningTVS

SM8S28CA ±30kV/±30kV 28 31.1 ~ 34.4 45.4 145A 5 _ DO-218AB ordinaryTVS

ShanghaiLei Mao ElectronicsTechnology Co., Ltd，Established in 2011，brandLeiditech，It is a national high-tech enterprise。The company’s R&D team consists of Dr. Liu from the United States andTIEstablishment of the original development manager，With a skilled R&D team and experienced electromagnetic compatibility industry experts，Mainly providing anti-static measuresTVS/ESDAnd relatedEMCcomponent（Discharge tubeTSS/GDT、Stabilizing tubeZENER、VaristorMOV、rectificationdiodeRECTIFIER、Self recovery fusePPTC、Field-effect transistorMOSFET、inductance）。

LeiditecharoundEMCEMC service customers，Self built free laboratory for testing static electricity for customersESD（30KV）、Group pulseEFT(4KV)、surge（8/20，10/700 10/1000）、Car load shedding（7637 5a/5b）Performance testing of components, etc。LeiditechKeeping up with the pulse of domestic and international technological updates，Continuously innovatingEMCProtection scheme and related devices，Target direction is small packaging，High power，Provide reliable solutions and components for domestic substitution。

Table information：

Product Information：Information of ESD

Electrostatic Discharged Protection Devices, referred to as ESD. It is mainly used to protect the Electrostatic Discharge of communication interface .

The reason of Electrostatic Discharge：

a. Two substances via the contact friction and loss of electrons or the electron, the charge band (no flow) termed static;

b. Due to switch electricity or lightning induced surge also indirect causes static electricity;

c. Temperature and humidity affect the turboelectric charged, at less than 45℃, it will produce higher humidity greater voltage more than in 55℃, damaging also relatively large.

The selection tips of ESD

1. The Vrwm is bigger or equal to the circuit working voltage is better;

2. The Cp of ESD is confirmed by the rate of data port, the data transfer more faster ,the Cp of ESD should be more smaller;

3. Selecting suitable Ipp for your circuit, the suitable Vc for your circuit and power=Ipp*Vc*power factor;

4. According to the PCB to select package (1-channel or multi-channels).

If you’d like to learn more or have any questions, don’t hesitate to reach out:

[sales16@leiditech.com]

Visit us at [en.leiditech.com]

[performancepackaging]

Premium Static Shielding Bags for Secure Electronic Component Protection

Discover our top-quality Static Shielding Bags designed to safeguard your sensitive electronic components from static discharge and electromagnetic interference. These bags are engineered with a multi-layer construction that provides superior protection, ensuring the integrity of your valuable items during storage and transit. Ideal for various applications in the electronics industry, our static shielding bags meet industry standards and offer reliable performance. Trust in our expertise to keep your components safe and secure.

[michaelburton]

Why Is Everyone Talking About Anti-static Bag?

IT’S TIME TO MAKE BETTER DECISIONS FOR YOUR BUSINESS 

 Why choosing the right Anti Static bag and Anti Static flooring a smart move for businesses?

 Ever wondered why your computer hard drive or laptop is wrapped in an anti-static bag when purchased? What are these used for? or how do they work?

 There is a high amount of risk associated with electric components at the risk of being damaged when it comes to electrostatic discharges. This static electricity can be a major cause of damage to the internal circuitry of microprocessors or components rendering them useless or “fried”. Thus, with anti-static bags, for electronic, health, and military locations, anti-static flooring is often a beneficial and smart choice.

The very main purpose of Anti-static flooring is to help reduce possible electrostatic discharge, such flooring option is a must for industries where static can cause damage or interference to equipment or employees.

 Prevention is better than cure 

 To prevent the components from becoming damaged we should use anti-static bags which helps to shield them from Tribocharging. Anti-static bags can be divided into two categories, StaticShielding bags, and dissipative anti-static bags, however, most people will just refer to them under the generic term “Anti-static bag”.

 The material will not generate triboelectric charges on coming in contact with hair, plastic packaging fabrics, or any other insulators. Anti-static bags are made of an ESD coating which mitigates tribocharging resulting in reducing the probability of electric potential that certainly leads to ESD events. IC components, electronic devices, and other ESD sensitive devices are not safe from ESD events when handle, stored, or transported outside an ESD safe environment inside an anti-static bag.

 Which bags are ESD safe and how to maintain anti-static flooring?

 Anti-static bags which come in pink and blue color are only ESD safe for components inside of an EPA (ESD protected areas). The only bags that protect transportation outside of an ESD safe area or for a shipment are the static shielding ESD bags. Make sure that no ESD-sensitive components are shipped in blue or pink anti-static bags! With anti-static bags selecting the right anti-static flooring for your business can also be overwhelming with so many to choose from, that too if you are in search of options that are conducive to your industry.

But guess what? you do not need to worry about the care or the installation of these floors as they are extremely simple. These Anti static tiles can be placed over existing floors, interlock, and can be sealed easily. 

 GET IN TOUCH

 if you think that anti-static flooring and anti-static bags might be the right decision for your industry or business, get in touch with our experts today to learn more about our services. We will be pleased to further explain all of the great advantages they can add to your workspace.

[leiditechelectonicpublishing]

New ESD anti-static solution for NFC equipment interface

1、 What is an NFC device

NFC (Near-field communication) equipment is a wireless communication technology, which can realize short-range wireless communication and data exchange. It is based on Radio Frequency Identification (RFID) technology and Internet technology, using radio waves to transmit information between devices.

NFC devices usually consist of two parts: one is a reader/writer, used to read and write information on NFC tags or devices; The other is an NFC tag or device used to store and transmit information. For example, a mobile phone can serve as an NFC reader/writer, and an NFC label can be a regular piece of paper with information written on it, which can be read and written by the phone.

NFC technology has a wide range of applications in daily life, such as mobile payments, public transportation, smart homes, ticketing services, etc. Users can use NFC devices to pay for goods or services, enter public transportation or cultural venues, control household appliances, obtain ticketing information, and more. At the same time, NFC technology also provides more business opportunities for enterprises, such as promotional activities, providing customer service, and so on.

In short, NFC devices are a convenient and fast wireless communication technology that can provide users with a more convenient life experience and provide enterprises with more business opportunities.

2、 Necessity of NFC equipment anti-static

Anti static of Near-field communication equipment interface is very important, because static may have a negative impact on equipment performance, or even lead to equipment damage. In NFC device interfaces, charges may accumulate on the metal components of the device and generate an electric field around the interface. If static electricity is not properly handled, it may cause damage to the equipment.

3、 NFC equipment interface anti-static scheme

The following are some common methods to prevent static electricity from affecting NFC device interfaces:

Use metal shielding covers, use static eliminators, and use interface anti-static devices. At present, using anti-static devices ESD is the most effective and cost-effective solution. It is necessary to provide anti-static protection devices above 18V. Shanghai Leiditech has provided a board level design solution for the following series of devices.

NXPNTAG21 series

NXP MIFARE Classic Series

NXP MIFARE DESFire series

NXP MIFARE UItralight series

Sony FeliCa column

STMicroelectronics ST25 column

Infineon SLE column

Broadcom BCM2079x Series

Samsung TecTiles column

AMSAS395x series

This article discusses the use of Shanghai Leiditech’s large scan ESD devices ULC2421CS and ULC2442CS to protect these chips on small devices such as smartphones, watches, and bracelets.

If you’d like to learn more or have any questions, don’t hesitate to reach out: 📧 [sales16@leiditech.com] 🌐 Visit us at [en.leiditech.com]

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