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Announcing the launch of TVS diodes which reduce package size by 62.5%
~Contributes to downsizing of ECU protective circuits for vehicle applications~

Aug. 27, 2024

Shindengen Electric Manufacturing is releasing the ST20-FY series TVS diodes for in-vehicle equipment.

In recent years, environmentally friendly vehicles, which are rapidly becoming more popular, are equipped with a large number of ECUs, and the space limitations of each component are becoming more pronounced. In addition, as ECUs continue to increase in functionality and complexity, there is a need for more robust protection against negative surges that may cause malfunctions.
For these reasons, TVS diodes used for negative surge protection must be compact and have a high negative surge guarantee.
To meet these needs, Shindengen Electric Manufacturing has launched the ST20-FY series TVS diodes. This product reduces package size by 62.5% compared with conventional products※1 and improves guaranteed negative surge protection by 20% compared with equivalent products of other companies, contributing to downsizing and improving safety of devices.
The wide range of withstand voltages available in the product lineup enables the selection of a product suitable for the corresponding standard.

※1Comparison with "2F package"


■ Features

1. The package size is reduced by about 62.5%【Fig.1
Package size reduced 62.5% compared to the conventional equivalent competitor products, contributing to product downsizing.

2. 20% increase in guaranteed negative surge protectionFig.2
Contributes to equipment safety by improving the guaranteed negative surge protection by 20% compared with equivalent products of other companies.

3. Wide withstand voltage lineup available
You can select products suited to required standards from a wide range of 18V to 39V withstand voltage

4. AEC-Q101compliance

Fig.1 The package size is reduced by about 62.5%

 Fig.2 20% increase in guaranteed negative surge protection


■ Typical Applications

・vehicle application ECUs

■ External Dimensions

■ Equivalent Circuit

■ Product Specifications

Products Absolute Maximum Ratings (Tc=25℃) Electrical Characteristics (Tc=25℃)
Tstg [°C] Tj [°C] PRSM [W] IRSM [A] VR(DC) [V] VBR [V] IRMax. [μA]
(VR=VR(DC))
Min. Max.
ST20-18FY -55~175 -55~175 1800 57 16 17.2 19.1 5
ST20-27FY -55~175 -55~175 1800 45 23 25.0 29.0 5
ST20-30FY -55~175 -55~175 1800 41 24 28.0 32.0 5
ST20-33FY -55~175 -55~175 1800 38 25 31.0 35.0 5
ST20-36FY -55~175 -55~175 1800 35 27 34.0 38.0 5
ST20-39FY -55~175 -55~175 1800 30 30 37.0 41.0 5


■ Factory Location

Akita Shindengen, Co., Ltd. etc.

■ Availability

August 2024


■ Contact information

※The content was partially revised on October 3, 2024.

Please note that the information contained in releases is current as of the date of press announcement, but may be subject to change without prior notice.

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