E453 전자부품 데이터시트

E462 PHILIPS Tetrode, HF or MF amplifier Dimensions (mm) Heating indirect, AC or DC, parallel a g2 g1 km f1 f2 127 x 50 Vf (V) If (A) 4 1 f1 k,m 3 g2 1 5 a 6 4 g1 Base O 2 f2 Capacitances Cag1 (pF) Typical characteristics Va (V) Ia (mA) Vg1 (V) Vg2 (V) Ig2 (mA) µ S (mA/V) Ri (kΩ) 200

E428 PHILIPS Triode Dimensions (mm) Heating indirect, AC or DC, parallel 97 x 50 Vf (V) If (A) 4 1 a gm k f1 f2 f1 k,m 3 a1 5 4g Base O 2 f2 Typical characteristics Va (V) Ia (mA) Vg1 (V) µ S (mA/V) Ri (kΩ) 200 6 -3.5 28 2.4 11.5 FP 1999.08.09 1/2 E428 PHILIPS Operating characeristi

FEATURES High efficiency: 90.5% @ 3.3V/20A Size: 58.4mm x 22.8mm x 8.35mm (2.30”x0.90”x0.33”) Industry standard pin out SMT and through-hole versions Fixed frequency operation: 350KHz Input UVLO, Output OCP, OVP, OTP 1500V isolation Basic insulation No minimum load required 2:1 Input voltage r