The JST VH connector (3.96mm pitch, 10A rated current) is the best option for industrial power connection because of its high power density and reliability. For example, on electric vehicle charging module, one port provides continuous current 10A (peak 15A, duration 10 seconds), contact resistance ≤5mΩ (industry standard ≤10mΩ), reducing the power loss by 50%. In 2023, the size of the global industrial connector market was $9.8 billion, jst vh shares 21% of power supply products (Yole data), its unit price is 30% lower than comparable industrial connectors (unit price of $0.15 vs. $0.21), and is UL 1977 certified (withstand voltage 250V AC).
In the control of industry, 500 times life of jst vh plug (contact force 50N test), much more than the general connector 200 times, with IP67 protection level (IEC 60529 standard), under high humidity (humidity 95% RH) and dust environment. By using this connector in ABB robot arm control cabinet, the maintenance frequency of harness reduced from 3 times/year to 1 time/year, and saved average annual maintenance expense of $1,800 per unit. Its working temperature range (-40℃~+105℃) ADAPTS to the heat dissipation state of the inverter, and its current carrying capacity reduces only 5% at 55℃ high temperature (15% reduction competitive products).
In consumer electronics, the minimum size (8.5mm height) and minimum weight (2.5g single-port) of the jst vh provide the optimal energy efficiency. For example, the DJI agricultural drone Agras T40 uses the connector to supply power to the battery pack (48V/20Ah), with 98% energy transmission efficiency (94% for traditional solutions) and 12-minute extension of battery life (working time extended from 32 minutes to 44 minutes). In 2022, jst vh sales of UAV power connectors increased 28%, and reached 35% (data from Drone Industry Insights), and its anti-vibration performance level (20Hz~2000Hz/7G) minimized disconnection dangers in airborne usage to 0.001 times/thousand hours.
In automobile electronics, jst vh is AEC-Q200 certified for DC-DC modules in onboard chargers (OBCs). This connector is implemented in Tesla Model 3 BMS and saves 40% of the harness length (0.7m compared to 1.2m), 18% loss of resistance, and enhances charging efficiency to 95% from an industry average of 92%. According to SAE statistics, the high-voltage harness failure rate in electric vehicles by jst vh is only 0.002 times/year (average value in industry 0.008 times), and comes with 48V light-mixing systems (transient current 20A).
Common applications are the application of jst vh connectors in the Ningde Era energy storage system in 2021 that improved the efficiency of the harness assembly by 25% (single module assembly time from 45 minutes to 34 minutes) and reduced the incidence of welding defects to 0.1% (industry standard of 0.8%). In addition, MIT 2023 research highlights that the connector is used on solar inverters, and after the thermal cycle test (-40℃~85℃), contact impedance deviation is under 3mΩ (10mΩ with closest peers), while the system’s life is increased to 15 years (industry average, 12 years). From cost (bulk purchase price of $0.12 per unit) to safety (flame-retardant class UL94 V-0) to load handling (10A@80 ° C), the jst vh establishes a new price-performance standard for high-power connectors.