High-speed signal dual-channel SOT-23 low capacitance ESD protection
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By LEIDITECH | 02 July 2025 | 0 Comments

High-speed signal dual-channel SOT-23 low capacitance ESD protection

Shanghai Leiditech often receives inquiries from both new and old customers: "Do you have two-channel bidirectional 3.3V or 5V voltage ESD diodes for high-speed signals? We have two I/O ports that need to be protected against static electricity, such as SOT-23 packages." 

To meet customer needs, Shanghai Leditech has developed and launched the following dual-channel series ESD products, with SOT-23 packaging. They are widely used in high-speed data I/O ports, I2C, eSATA, USB2.0, USB3.0, HDMI1.3, HDMI1.4, LAN and WAN (megabit, gigabit) interface applications.

SOT-23

Part Number

Vrwm
(V)

Power
W)

Vb(V)

VCmax@A

Ir(uA)

C(PF)

Features

Package

ESD per IEC61000-4-2 (Air)/(Contact)

LCC33DT3

3.3

360

4.2

16V@20A

0.1

0.6

2CHBi

SOT-23

±30kV/±30kV

LCC05DT3

5.0

360

6.0

15V@18A

0.1

0.6

2CHBi

SOT-23

±30kV/±30kV

LCC12DT3

12.0

350

13.0

25V@13A

0.1

0.6

2CHBi

SOT-23

±30kV/±30kV

LCC15DT3

15.0

350

16.5

28V@11A

0.1

0.6

2CHBi

SOT-23

±30kV/±30kV

LCC24DT3

24.0

400

26.7

45V@8A

0.1

0.6

2CHBi

SOT-23

±30kV/±30kV

LCC33DT3, LCC05DT3, LCC12DT3, LCC15DT3, LCC24DT3 - This series can meet the ESD (electrostatic discharge) protection requirements for customers' 3.3V, 5V, 12V, 15V, and 24V signals. They are all the ESD diodes needed for the conventional signal voltages required by the customers. 

Two-channel bidirectional ESD protection, with one chip sufficient to meet the requirements. This saves space and facilitates PCB layout. 

The IEC61000-4-2 (ESD) standard meets ±30kV (in air), ±30kV (in contact), and complies with the electrostatic protection level 4 (±8KV/15KV). 

The peak power of all the voltages in the above series is above 300W. Not only does it have a high static electricity prevention capability, but it also has strong surge resistance. It can also protect against surges caused by hot swapping. 

At the peak current condition of VCmax@A, the clamped voltage is low. 

Low capacitance, with the capacitance values ranging from approximately 0.6 PF, which is suitable for high-speed signal applications. 

Low leakage current, 0.1uA. 

If you have requirements for high-speed dual-channel ESD protection and other interface electrostatic surge protection, please contact the sales staff of Lebao or the EMC specialist of Leiditech. 

Leiditech Electronics is committed to becoming a leading brand in electromagnetic compatibility solutions and component supply, offering products such as ESD, TVS, TSS, GDT, MOV, MOSFET, Zener, and inductors. Leiditech has an experienced R&D team that can provide personalized customization services based on customer needs, offering the best solutions to customers.

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