SHENZHEN GANGXINLI ELECTRONICS CO.,LTD
Professional Electronic Component Distributor!
Language
SHENZHEN GANGXINLI ELECTRONICS CO.,LTD
Professional Electronic Component Distributor!
2026/5/11
AQ3045-01ETG is an active bidirectional TVS diode manufactured by Littelfuse, designed for circuit protection against ESD and transient voltages. Packaged in compact SOD-882 with 40W peak pulse power, it features low capacitance and AEC-Q101 qualification for high-speed and automotive applications.
Category:Circuit Protection,Transient Voltage Suppressors (TVS),TVS Diodes
Power - Peak Pulse:40W
Mfr:Littelfuse Inc.
Series:AQ3045, SPA®
Packaging:Tape & Reel
Capacitance @ Frequency:0.35pF @ 1MHz
Part Status:Active
Operating Temperature:-55°C ~ 150°C (TA)
Type:Zener
Bidirectional Channels:1
Qualification:AEC-Q101
Voltage - Reverse Standoff (Typ):5.3V (Max)
Mounting Type:Surface Mount
Voltage - Breakdown (Min):6.8V
Package / Case:SOD-882
Voltage - Clamping (Max) @ Ipp:12V
Current - Peak Pulse (10/1000µs):3A (8/20µs)
Ultra-low Capacitance:The device owns an extremely low capacitance of only 0.35pF at 1MHz, which produces negligible load effect on high-speed signal lines. It effectively avoids signal attenuation, phase shift and waveform distortion, ensuring complete integrity of high-frequency and high-speed transmission signals.
Strong Surge Resistance:It supports a peak pulse power of 40W and a peak pulse current of 3A under 8/20µs surge condition. It can rapidly absorb and dissipate instantaneous surge energy caused by electrostatic discharge and power fluctuation, providing reliable transient overvoltage protection for fragile precision chips.
Dual-way Protection:Designed with a single bidirectional protection structure, the diode can suppress both positive and negative transient voltage spikes. It delivers symmetrical protection performance without the need for parallel configuration, simplifying peripheral circuit design and saving layout space.
Auto-grade Reliability:Certified with AEC-Q101 automotive-grade qualification, it strictly meets high-standard reliability requirements for automotive electronic devices. It passes extreme environmental and durability tests, ensuring long-term stable operation in complex and harsh vehicle working conditions.
Compact Size:Adopting ultra-small SOD-882 surface mount package, the component features tiny outline size and lightweight. It is perfectly adapted to the miniaturization, thinning and high-density layout design of modern portable and wearable electronic products.
USB Port Protection:Applied to USB 2.0 and USB 3.2 high-speed interface circuits of smartphones, tablet computers and mobile power supplies. It eliminates ESD static electricity and instantaneous surge voltage generated during plugging and unplugging, preventing interface chip burnout and signal transmission failure.
Video Interface Guard:Deployed on HDMI 2.0 and DisplayPort high-speed video signal lines of monitors, smart TVs and industrial display screens. Its ultra-low capacitance will not affect high-definition video transmission, while effectively suppressing static interference and ensuring stable and clear video output.
Auto Onboard Circuit:Used for protection of automotive infotainment host signal lines, vehicle-mounted Bluetooth modules and instrument panel control circuits. It resists transient voltage impact caused by vehicle ignition and load switching, adapting to complex automotive electromagnetic environment.
Sensor Signal Guard:Installed on signal output lines of MIPI camera sensors and infrared proximity sensors in smart wearable devices and drones. It protects weak sensor signal circuits from static damage and avoids data distortion and sensing failure.
Communication Line Protection:Suitable for low-speed bus and communication signal lines of wireless Bluetooth modules, Wi-Fi modules and IoT smart sensors. It filters out transient pulse interference in the working environment and improves the anti-interference ability and working stability of communication modules.
Portable Device Safety:Applied to internal circuit protection of true wireless earphones, smart watches and portable recorders. Its tiny size fits ultra-thin product design, and it provides all-round static and surge protection for low-power precision circuits.
In summary, AQ3045-01ETG is a high-performance, low-capacitance TVS diode offering robust ESD and transient protection. Its compact size, automotive qualification, and signal-friendly design make it ideal for modern high-speed and portable electronic devices.