View 2sk1578 datasheet:

Ordering number:EN4178A N-Channel Junction FET 2SK1578 Capacitor Microphone Applications Features Package Dimensions · Especially suited for use in audio, telephone capaci- unit:mm tor microphones. 2034A · Excellent voltage characteristics. [2SK1578] · Excellent transient characteristics. 2.2 4.0 · Adoption of FBET process. 0.4 0.5 0.4 0.4 1 2 3 1 : Source 1.3 1.3 2 : Gate 3 : Drain 3.0 SANYO : SPA 3.8nom Specifications Absolute Maximum Ratings at Ta = 25?C Parameter Symbol Conditions Ratings Unit Gate-to-Drain Voltage VGDO –20 V Gate Current IG 10 mA Drain Current ID 1 mA Allowable Power Dissipation PD 100 mW Channel Temperature Tj 150 ?C Storage Temperature Tstg –55 to +150 ?C Electrical Characteristics at Ta = 25?C Ratings Parameter Symbol Con