Product technology leading
Qualified Suppliers for Semiconductor Enterprises
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Saijing Electronics is composed of Hangzhou Saijing Electronics Co., Ltd., Zhejiang Saijing Electronics Co., Ltd., and Guangsai Microelectronics (Zhejiang) Co., Ltd.:
Hangzhou Saijing Electronics Co., Ltd. was established in May 2015.
Its wholly-owned subsidiary, Zhejiang Saijing Electronics Co., Ltd., was established in September 2021.
The holding company, Guangdong Saijing Electronics Co., Ltd., was established in August 2021 which was relocated to Jiangshan, Zhejiang, and renamed Guangsai Microelectronics (Zhejiang) Co., Ltd in July 2024.
Company is one of the few domestic manufacturers that integrate the vertical integration of the industrial chain (IDM), including the design and manufacturing of semiconductor discrete device chips, testing, terminal sales, and services.
Company currently has 210 full-time employees, among which there are more than 100 professional and technical personnel, accounting for approximately 50%.
Complete after-sales service system
More than a thousand diode products in five major categories
Full Series Transient Voltage Suppressor
Full Series Rectifier
Automotive Rectifier
Deep Diffusion Substrate Wafer for BJT (Bipolar Junction Transistor).
High Voltage Silicon Stack
Full Series Transient Voltage Suppressor
Protection chips used for front-end protection in communication power supplies, 5G base station power supplies and other civil consumer electronics, etc.
Full Series Rectifier
The full series of STD and FRD diodes applied in fields such as fast charging piles, photovoltaic/LED, and consumer electronics
Automotive Rectifier
Core chips applied in rectification modules and protection modules of both traditional and new energy vehicles
Deep Diffusion Substrate Wafer for BJT (Bipolar Junction Transistor).
Substrate wafers for Bipolar Junction Transistor (BJT)
High Voltage Silicon Stack
Silicon rectifier stacks for substations and other applications with operating voltages ranging from several kilovolts (kV) to tens of kilovolts.
APPLICATION
The broad application spectrum stems from end-to-end vertical integration capabilities.
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Jul 20,2024
Jul 20,2024
A pre-protection chip is a chip used to provide advance protection for circuits or devices.
Jul 20,2024
Application scenarios of pre-protection chips
Charging devices: such as phone chargers, mobile power banks, car chargers, etc. Taking phone chargers as an example, the front-end protection chip can prevent overvoltage and overcurrent problems caused by input voltage fluctuations, improper connection of charging cables, etc., protecting the phone battery and charging circuit safety.
Jul 20,2024
Working principle of pre-protection chip
Front-end protection chips typically use internal high-precision voltage detection circuits, current detection circuits, and temperature detection circuits to monitor voltage, current, and temperature parameters in real time. When detected parameters exceed the normal range, the internal control logic of the chip triggers corresponding protection mechanisms, such as circuit disconnection, current limiting, and reduced operating frequency, based on preset protection strategies, to protect the safety of downstream circuits and equipment.
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Telephone:0571-86698096
Address: Liming Community, Heshun Village, Jingjiang Street, Xiaoshan District, Hangzhou City, Zhejiang Province
E-mail:sales@hzhangxin.com
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