TetraFET D2025UK METAL GATE RF SILICON FET MECHANICAL DATA GOLD METALLISED MULTI-PURPOSE SILICON DMOS RF FET 2.5W – 28V – 400MHz SINGLE ENDED C 1 2 4 3 A B FEATURES F E G H D • SIMPLIFIED AMPLIFIER DESIGN • SUITABLE FOR BROAD BAND APPLICATIONS DW PIN 1 DRAIN PIN 2 SOURCE PIN 3 GATE PIN 4 SOURCE • LOW Crss • SIMPLE BIAS CIRCUITS • LOW NOISE • HIGH GAIN – 13 dB MINIMUM DIM A B C D E F G H mm 26.16 5.72 45° 7.11 0.13 1.52 0.43 7.67 Tol. 0.38 0.13 5° 0.13 0.03 0.13 0.20 REF Inches 1.030 0.225 45° 0.280 0.005 0.055 0.060 0.120 Tol. 0.015 0.005 5° 0.005 0.001 0.005 0.008 REF APPLICATIONS • VHF/UHF COMMUNICATIONS from DC to 1GHz ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated) PD BVDSS BVGSS ID(sat) Tstg Tj Semelab plc. Power Dissipation Drain – Source Breakdown Voltage Gate – Source Breakdown Voltage Drain Current Storage Temperature Maximum Operating Junction Temperature Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: [email protected] Website: http://www.semelab.co.uk 17.5W 65V ±20V 1A –65 to 150°C 200°C Document Number 5855 Issue 1 D2025UK ELECTRICAL CHARACTERISTICS (Tcase = 25°C unless otherwise stated) Parameter Test Conditions Min. BVDSS Drain–Source Typ. Max. Unit V VGS = 0 ID = 10mA VDS = 28V VGS = 0 1 mA VGS = 20V VDS = 0 1 µA VGS(th) Gate Threshold Voltage* ID = 10mA VDS = VGS 7 V gfs Forward Transconductance* VDS = 10V ID = 0.2A GPS Common Source Power Gain PO = 2.5W η Drain Efficiency VDS = 28V VSWR Load Mismatch Tolerance f = 400MHz IDSS IGSS Breakdown Voltage Zero Gate Voltage Drain Current Gate Leakage Current IDQ = 0.1A 65 1 0.18 S 13 dB 40 % 20:1 — Ciss Input Capacitance VDS = 28V VGS = –5V f = 1MHz 12 pF Coss Output Capacitance VDS = 28V VGS = 0 f = 1MHz 6 pF Crss Reverse Transfer Capacitance VDS = 28V VGS = 0 f = 1MHz 0.5 pF * Pulse Test: Pulse Duration = 300 µs , Duty Cycle ≤ 2% HAZARDOUS MATERIAL WARNING The ceramic portion of the device between leads and metal flange is beryllium oxide. Beryllium oxide dust is highly toxic and care must be taken during handling and mounting to avoid damage to this area. THESE DEVICES MUST NEVER BE THROWN AWAY WITH GENERAL INDUSTRIAL OR DOMESTIC WASTE. THERMAL DATA RTHj–case Semelab plc. Thermal Resistance Junction – Case Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: [email protected] Website: http://www.semelab.co.uk Max. 10°C / W Document Number 5855 Issue 1