View 2sk2219 datasheet:

Ordering number:ENN4755 N-Channel Junction Silicon FET 2SK2219 Capacitor Microphone Applications Features Package Dimensions · Ultrasmall-sized package permitting 2SK2219- unit:mm applied sets to be made small and slim. 2058A · Especially suited for use in audio, telephone capaci- [2SK2219] tor microphones. · Excellent voltage characteristic. 0.3 0.15 · Excellent transient characteristic. 3 · Adoption of FBET process. 0 to 0.1 1 2 0.3 0.6 0.65 0.65 0.9 2.0 1 : Source 2 : Drain 3 : Gate SANYO : MCP 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 ?C Junction Temperature Tj 150 Storage Tempera