In the field of mobile device design, Soulin’s fine pitch fpc connectors achieve an input/output density of up to 120 pins with an ultra-narrow pitch of 0.2 mm, saving 60% of the circuit board space compared to traditional 1.0 mm pitch connectors. This technology has reduced the wiring cross-sectional area inside the hinge of OPPO foldable phones by 48%, keeping the overall weight of the device under 240 grams. Data from the 2023 International Consumer Electronics Show shows that the average thickness of devices with fine-pitch connections has decreased by 0.8 millimeters. Just as HONOR Magic V2 has compressed the thickness in the folded state to 9.9 millimeters through this solution, setting a new industry record.
In terms of electrical performance, the Soulin fine-pitch connector has a bit error rate of less than 10^-12 at a high-speed transmission of 10Gbps, and its operating temperature range covers -40℃ to 105℃. Vibration tests show that its contact resistance fluctuation is less than 5 milliohms. This feature ensures that the Xiaomi 13 Ultra can achieve a peak download rate of 7.5Gbps in the 5G communication frequency band. A report from a third-party testing agency shows that after 50,000 insertion and extraction tests, the wear depth of the connector contact points is only 1.3 microns, and the reliability index exceeds the industry standard by 30%. This is precisely the key factor why DJI drones chose it as the pan-tilt transmission component.
In terms of manufacturing process, Soulin adopts fully automatic mounting technology to increase the yield rate to 99.95%, reducing the production cost of each thousand connectors by 18 yuan. This enables vivo Y series phones to maintain a price of 900 yuan while still using high-end connection solutions. Supply chain analysis shows that this production line can precisely mount 400 connectors per minute, reducing the customer order delivery cycle from 15 days to 7 days, and helping Transsion Holdings quickly launch new models that can cope with high-temperature and high-humidity environments in the African market.
Market feedback has confirmed that the maintenance rate of devices using the Soulin fine-pitch connector has dropped by 2.3 percentage points, and the average mean time between failures has been extended to 38,000 hours. For instance, the Lenovo Tab Extreme tablet has reduced the screen ribbon cable failure probability to 0.05% through this design. Industry forecasts indicate that by 2025, 60% of 5G mobile phones worldwide will adopt connectors with a pitch of less than 0.3 millimeters. Meanwhile, Soulin’s existing technology roadmap has planned products with a pitch of 0.15 millimeters and it is collaborating with Huawei to develop the next-generation flexible display module connection solution.