セイワ List of Products and Services

We offer a lineup of SAW filters around 100MHz. Customization of center frequency, bandwidth, loss, etc., is available at low prices not found in Japan. Additionally, we have obtained TS16949, ISO9001, and ISO14001 certifications, making it possible to supply automotive products. By handling everything from wafers to packaging in-house, we can deliver high-quality products at low prices and with short lead times. IF filters for audio and video are used in digital television tuners and signal level detection, among other applications. RF filters have already been adopted in Japan for products such as GPS modules, radios, garage remotes, security keys, keyless entry systems, wireless microphones, active tags, and wireless doorbells, and we are expanding our product lineup for the increasingly competitive smart meter market.

Introducing River Eletech Co., Ltd., handled by Seiwa Co., Ltd. The company is an electronic component manufacturer that produces and sells quartz devices used in various electronic devices such as smartphones. In providing solutions to meet customer needs for lightweight and compact products, they have refined their unique technologies. Notable proprietary technologies include advanced quartz photolithography processing technology, "electron beam sealing method," and "direct metal bonding sealing method." Additionally, the development team's creative ideas are utilized in element technologies such as quartz chip design and microfabrication technology, as well as high-precision mounting technology for containers, serving as the source for supplying compact and high-performance products. [Business Description] ■ Manufacturing and sales of electronic components such as quartz oscillators and quartz resonators. *For more details, please refer to the PDF materials or feel free to contact us.

The company's main product is electronic components (crystal devices) that use quartz. There are several types of crystal devices, and the company produces quartz oscillators and quartz oscillators. Among these, the company specializes in SMD (Surface Mount Device) types that use a unique electronic beam hermetic sealing method, focusing on cutting-edge fields such as small portable devices (smartphones, digital cameras, handheld game consoles, etc.), short-range wireless communication (Wi-Fi, Bluetooth, wireless LAN, etc.), car electronics, and medical devices, thereby securing stable profits. At the same time, the company has established the concept of "smaller than anywhere else, smaller to the utmost," consistently leading the industry in product miniaturization.

Compliant with AECQ200, guaranteed to operate at -40℃ to 105℃. Center frequency: 1582.4 MHz Insertion loss TYP MAX 1559.05~1563.15 MHz 1.0 dB 1.5 dB 1572.42~1578.42 MHz 0.8 dB 1.3 dB 1597.55~1605.89 MHz 1.0 dB 1.5 dB It has excellent characteristics in terms of passband ripple and VSWR, enabling high-precision positioning. TYP MAX Group delay characteristics 10 25 ns Package size: 1.1 mm × 0.9 mm Proven track record in GPS/GNSS antennas and modules.

SAW DUAL FILTER ◇Insertion Loss ◎1166.22~1186.68MHz TYP: 1.2 / MAX: 1.8 dB / Type: GPS L5 ◎1205.09~1209.19MHz TYP: 1.2 / MAX: 1.8 dB / Type: BD B2 ◎1226.58~1228.62MHz TYP: 1.2 / MAX: 2.0 dB / Type: GPS L2 ◇Characteristics at 1166.22~1228.62MHz ◎Passband Ripple TYP: 0.5 / MAX: 1.0 dB ◎Group Delay Ripple TYP: 10 / MAX: 25 ns ◎VSWR TYP: 1.5 / MAX: 2.0 Package Size: 1.5mm x 1.1mm Proven track record in GPS/GNSS antennas and modules.

■Insertion Loss ◎1166.22~1186.68MHz TYP: 1.2 / MAX: 1.8 dB / Type: GPS L5 ◎1205.09~1209.19MHz TYP: 1.2 / MAX: 1.8 dB / Type: BD B2 ◎1226.58~1228.62MHz TYP: 1.2 / MAX: 2.0 dB / Type: GPS L2 ■Characteristics at 1166.22~1228.62MHz ◎Passband Ripple TYP: 0.5 / MAX: 1.0 dB ◎Group Delay Ripple TYP: 10 / MAX: 25 ns ◎VSWR TYP: 1.5 / MAX: 2.0 Package Size: 1.5mm x 1.1mm Proven track record in GPS/GNSS antennas and modules.

Center frequency: 1227 MHz Insertion loss within the band (1194 MHz to 1260 MHz): TYP 1.2 dB MAX 1.5 dB Passband ripple (1194 MHz to 1260 MHz): TYP 0.3 dB MAX 0.8 dB Package size: 3 mm × 3 mm Proven track record in GPS/GNSS antennas and modules.

☆Product Features☆ ■ One of the smallest in the world, 1210 size ■ Frequency tolerance ±7ppm (@25℃) ■ Wide operating temperature range of -40℃ to 125℃ ■ High-reliability ceramic package sealed with a unique technology and metal lid ■ AEC-Q200 compliant ■ Customizable options available *For more details on other characteristics, please refer to the downloadable materials. ◎ Please feel free to contact us regarding price, delivery time, specifications, etc.

The HDTF1588CCL-B5-SWTX is a wideband, low-loss SAW triple-band filter compatible with three systems: GPS, COMPASS, and GLONASS. It covers multiple frequency bands in a single chip, allowing for a space-saving design. Additionally, it has very high attenuation (up to 55dB) for the 2.4GHz band (Wi-Fi/Bluetooth) and the 5GHz band (radar/communication), achieving stable positioning accuracy even in automotive environments and high-interference areas in urban settings as a wideband attenuation-compatible SAW filter.

Realized 2 frequency support (1210MHz / 1577.5MHz) in a single chip measuring 2.5mm x 2.0mm (1 IN 1 OUT). Compliant with AEC-Q200! It meets automotive quality standards and enables high-precision signal positioning. Additionally, it achieves high attenuation over a wide bandwidth up to 6000MHz, making it a product that is less susceptible to interference from other frequencies.