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BLF145_2015 Datasheet(PDF) 7 Page - Quanzhou Jinmei Electronic Co.,Ltd. |
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BLF145_2015 Datasheet(HTML) 7 Page - Quanzhou Jinmei Electronic Co.,Ltd. |
7 / 12 page September 1992 7 Philips Semiconductors Product specification HF power MOS transistor BLF145 List of components (class-A test circuit) Notes 1. American Technical Ceramics (ATC) capacitor, type 100B or other capacitor of the same quality. 2. The striplines are on a double copper-clad printed circuit board, with PTFE fibre-glass dielectric ( ε r = 4.5), thickness 1 ⁄16 mm. COMPONENT DESCRIPTION VALUE DIMENSIONS CATALOGUE NO. C1, C3, C8, C9 film dielectric trimmer 7 to 100 pF 2222 809 07015 C2, C10 multilayer ceramic chip capacitor (note 1) 39 pF C4, C7 multilayer ceramic chip capacitor 100 nF 2222 852 47104 C5, C6 multilayer ceramic chip capacitor (note 1) 27 pF C11 multilayer ceramic chip capacitor 3 × 100 nF 2222 852 47104 C12 electrolytic capacitor 2.2 µF, 63 V 2222 030 38228 L1 12 turns enamelled 0.5 mm copper wire 307 nH length 8 mm; int. dia. 4 mm L2, L3 stripline (note 2) 30 Ω length 15 × 6mm L4 14 turns enamelled 1 mm copper wire 1039 nH length 14 mm; int. dia. 9 mm L5 9 turns enamelled 1 mm copper wire 305 nH length 10 mm; int. dia. 6 mm L6 grade 3B Ferroxcube wideband HF choke 4312 020 36640 R1 0.25 W metal film resistor 26 Ω R2 0.25 W metal film resistor 10 Ω Fig.11 Test circuit for class-A operation. f = 28 MHz. handbook, full pagewidth MGP042 input 50 Ω C1 C4 C7 L1 L2 D.U.T. L3 L5 +VG L4 R1 C3 C2 C8 C11 C6 C5 C12 C10 +VD C9 L6 R2 output 50 Ω |
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