JST JWPF connectors feature improved water resistance through multi-layer seal design and material technology. It adopts silicone sealing ring and double-wall injection molding technology, contact area reaches IP68 protection level (immersion in water for 72 hours to 1.5 meters, the current industry standard IP67 is just immersion in water for 30 minutes to 1 meter), and standing 1,000 hours against no corrosion in salt spray test (5% NaCl concentration, 35℃) (common connector only 500 hours). Variation of contact resistance ≤2mΩ (the similar product is 5mΩ). Taking Tesla Cybertruck charging system as an illustration, after implementation of JST JWPF, the failure rate of the high-voltage connector (800V DC) decreases from 3.2% to 0.05% when subjected to the test of heavy rain (rainfall: 50mm/h) and splashing mud (diameter of the splashing particles ≤1mm), and life-cycle maintenance cost is reduced by $210/vehicle. UL 2238 standard test: after 2,000 cycles in high temperature and high humidity (95% humidity) environment of 85℃, the insulation resistance of the connector remains ≥1,000MΩ (original value of 1,500MΩ), attenuation rate only 33% (competitor’s product is up to 70%).
During production process, JST JWPF sealed automatic assembly line guarantees gas leakage rate less than 0.01cc/min (helium mass spectrometry leak detection method), 10 times more precise than manual assembly. The shell is made of PBT+30% glass fiber material (tensile strength ≥120MPa), and displacement deviation is less than 0.1mm under the vibration test (frequency 10Hz-2,000Hz, acceleration 50G) to maintain the sealing interface stable under the effect of mechanical shock. By applying the jst jwpf in Siemens Industrial PLC modules of subsea joint connectors, the MTBF was raised from 8,000 to 25,000 hours, and the downtime cost on the production line due to failure was reduced by 62% (a saving of $480,000 per year). Apart from that, the connector attains 500 times plug life (200 times industry average), plug force tolerance ±10% (±20% for other products), and the automation machine needs to switch the line rapidly (beat time is 15% less).
As regards cost savings, the JST JWPF reduces waterproofing accessories in quantity through an integrated approach. For example, its internally installed waterproof valve can serve as a replacement for the outer rubber sleeve to reduce the new energy vehicle charging socket assembly by 40g (23% reduction from original design), besides saving the material cost of 0.8/piece. In outdoor photovoltaic inverters, Huawei FusionSolar system employs * * JSTJWPF * * instead of traditional glue filling plan, waterproofing construction time is saved from 45 minutes/unit to 5 minutes/unit, the labor cost is saved 120/unit, and the 5-year repair rate caused by colloidal aging is eliminated (the original plan is 12%). According to Japan’s JET certification data, the annual failure rate of industrial sensor harnesses with JWPF in the -40 ° C to 125 ° C temperature range is only 0.3 times/thousand units (market average 1.5 times), and the total cycle cost is reduced by 41%.
JST JWPF reliability is established through actual use. In the typhoon “Haiqui” that hit Guangzhou in 2023, the connector breakdown repair of the Covos lawn mower robot (working water depth 30cm) decreased by 92% from the same period last year, and the breakdown rate of other products was as high as 37%. Medtronic laparoscopic surgery forceps in the clinic use JST JWPF waterproof mini connector (outer diameter: 2.5mm), even after undergoing 1,000 times high-pressure steam sterilization (134℃, 2.1Bar), in the process of transmission, signal bit error rate is below 1E-9, the life of instrument can be extended from 3 years to 8 years. As ABI Research forecasted, the global market of waterproof connectors will reach 7.4 billion US dollars in 2028, and JST JWPF will occupy 28% of market share in the consumer and new energy market with the competitive advantages of supporting compatible USB-C PD 100W fast charge and 10Gbps data communication. Promote the waterproof level of devices to reach the benchmarking speed of 98%.