TetraFET D1021UK METAL GATE RF SILICON FET MECHANICAL DATA GOLD METALLISED MULTI-PURPOSE SILICON DMOS RF FET 125W – 28V – 400MHz PUSH–PULL A C B (2 pls) K 3 2 1 E D 5 4 G (4 pls) F FEATURES • SIMPLIFIED AMPLIFIER DESIGN H J M I N • SUITABLE FOR BROAD BAND APPLICATIONS DK PIN 1 SOURCE (COMMON) PIN 2 DRAIN 1 • LOW Crss PIN 3 DRAIN 2 GATE 2 • SIMPLE BIAS CIRCUITS PIN 5 GATE 1 PIN 4 • LOW NOISE DIM A B C D E F G H I J K M N mm 6.45 1.65R 45° 16.51 6.47 18.41 1.52 4.82 24.76 1.52 0.81R 0.13 2.16 Tol. 0.13 0.13 5° 0.76 0.13 0.13 0.13 0.25 0.13 0.13 0.13 0.02 0.13 Inches 0.254 0.065R 45° 0.650 0.255 0.725 0.060 0.190 0.975 0.060 0.032R 0.005 0.085 Tol. 0.005 0.005 5° 0.03 0.005 0.005 0.005 0.010 0.005 0.005 0.005 0.001 0.005 • HIGH GAIN – 13 dB MINIMUM APPLICATIONS • HF/VHF/UHF COMMUNICATIONS from 1 MHz to 400 MHz ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated) PD BVDSS BVGSS ID(sat) Tstg Tj Power Dissipation Drain – Source Breakdown Voltage * Gate – Source Breakdown Voltage * Drain Current * Storage Temperature Maximum Operating Junction Temperature 350W 70V ±20V 20A –65 to 150°C 200°C * Per Side Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: [email protected] Website: http://www.semelab.co.uk Prelim. 11/00 D1021UK ELECTRICAL CHARACTERISTICS (Tcase = 25°C unless otherwise stated) Parameter Test Conditions Min. Typ. Max. Unit PER SIDE BVDSS Drain–Source V VGS = 0 ID = 100mA VDS = 28V VGS = 0 4 mA VGS = 20V VDS = 0 1 mA VGS(th) Gate Threshold Voltage * ID = 10mA VDS = VGS 7 V gfs VDS = 10V ID = 4A IDSS IGSS Breakdown Voltage Zero Gate Voltage Drain Current Gate Leakage Current Forward Transconductance * 70 1 3.2 S 13 dB 50 % 20:1 — TOTAL DEVICE GPS Common Source Power Gain PO = 125W Drain Efficiency VDS = 28V VSWR Load Mismatch Tolerance f = 400MHz h IDQ = 1.6A PER SIDE Ciss Input Capacitance VDS = 28V VGS = –5V f = 1MHz 240 pF Coss Output Capacitance VDS = 28V VGS = 0 f = 1MHz 120 pF Crss Reverse Transfer Capacitance VDS = 28V VGS = 0 f = 1MHz 10 pF * Pulse Test: Pulse Duration = 300 ms , 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. 0.5°C / W Prelim. 11/00 D1021UK 3RXW : I 0+] ,GT $ 9GV 9 3LQ: 3RXW 'UDLQ(IILFLHQF\ 'UDLQ(IILFLHQF\ 3RXW : I 0+] ,GT $ 9GV 9 *DLQ G% 3LQ: Figure 1. Power Output and Efficiency vs. Input Power 3RXW *DLQ Figure 2. Power Output and Gain vs. Input Power ,0' G%F I 0+] I 0+] ,GT $ 9GV 9 3RXW:3(3 ,0' Figure 3 IMD vs.Power Output Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: [email protected] Website: http://www.semelab.co.uk Prelim. 11/00 D1021UK =6RSW ,PSHGDQFHPHDVXUHGGUDLQWRGUDLQ M; =/RSW 0DWFKLQJ 1HWZRUN M; =6 =/ 5 5 I 0+] Semelab plc. ,PSHGDQFHPHDVXUHGVRXUFHWRVRXUFH =6RSW I 0+] 0DWFKLQJ 1HWZRUN Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: [email protected] Website: http://www.semelab.co.uk =/RSW Prelim. 11/00 D1021UK 1 5 + 2 8 V L 2 1 .5 K G a te -B ia s 1 0 0 K 2 2 K 6 x 4 m m c o n ta c t p a d D 1 0 2 1 U K 1 0 0 u F 6 8 0 p F 1 0 0 n F 6 x 4 m m c o n ta c t p a d L 1 6 2 0 p F 6 " T 1 2 -1 8 p F 6 2 0 p F 2 7 p F T 2 2 -1 8 p F 1 0 p F 1 -3 .5 p F 6 # T 3 6 2 0 p F 6 x 4 m m c o n ta c t p a d T 6 6 2 0 p F 2 -1 8 p F 6 x 4 m m c o n ta c t p a d D 1 0 2 1 U K 400MHz Test Fixture T1 T2,3,4,5 T6 11cm 50 Ohm UT47 semi-rigid coax on Siemens B62152A1X1 2 hole ferrite core 9cm 15 Ohm UT85-15 semi-rigid coax 9.7cm 50 Ohm UT85 semi-rigid coax L1 L2 7 Turns 19swg enamelled copper wire 3.5mm internal diameter 5.5 Turns 19swg enamelled copper wire on Fair-rite FT50 ferrite core Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: [email protected] Website: http://www.semelab.co.uk Prelim. 11/00