MRF428 MACOM | Alldatasheet
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Technical content
ELECTRICAL CHARACTERISTICS (TC = 25 °C unless otherwise noted.) OFF CHARACTERISTICS Designed primarily for high -voltage applications as a high -power linear amplifier from 2.0 to 30 MHz. Ideal for marine and base station equipment.
- Specified 50 Volt, 30 MHz Characteristics — Output Power = 150 W (PEP) Minimum Gain = 13 DB Efficiency = 45%
- Intermodulation Distortion @ 150 W (PEP) — IMD = -32 db (Max)
- 100% Tested for Load Mismatch at all Phase Angles with 30:1 VSWR @ 150 W CW MAXIMUM RATINGS Rating Symbol Value Unit Collector-Emitter Voltage VCEO 55 Vdc Collector-Base Voltage VCBO 110 Vdc Emitter-Base Voltage VEBO 4.0 Vdc Collector Current — Continuous IC 20 Adc Withstand Current — 10 s — 30 Adc Total Device Dissipation @ TC = 25 °C Derate above 25 °C PD 320 1.83 Watts W/°C Storage Temperature Range Tstg -65 to +150 °C Characteristic Symbol Min Typ Max Unit THERMAL CHARACTERISTICS NPN Silicon RF Power Transistor The RF Line SEMICONDUCTOR TECHNICAL DATA MRF428
150 W (PEP), 30 MHz
Characteristic Symbol Max Unit Thermal Resistance, Junction to Case Rθ JC 0.5 °C/W Collector-Emitter Breakdown Voltage (IC = 200 mAdc, IB = 0) V(BR)CEO 55 — — Vdc Collector-Emitter Breakdown Voltage (IC = 100 mAdc, VBE = 0) V(BR)CES 110 — — Vdc Collector-Base Breakdown Voltage (IC = 100 mAdc, IE = 0) V(BR)CBO 110 — — Vdc Emitter-Base Breakdown Voltage (IE = 10 mAdc, IC = 0) V(BR)EBO 4.0 — — Vdc (continued)
- To Mil-Std-1311 Version A, Test Method 2204B, Two Tone, Reference each Tone.
L3 — 12 Turns, #16 Enameled Wire Closewound, 1/4” I.D. Figure 1. 30 MHz Test Circuit Schematic
Figure 10. Series Equivalent Impedance
Specifications subject to change without notice. n North America: Tel. (800) 366-2266, n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. PACKAGE DIMENSIONS NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION INCH. STYLE 1: PIN 1 EMITTER PIN 2 BASE PIN 3 EMITTER PIN 4 COLLECTOR DIM INCHES MILLIMETERS MIN MAX MIN MAX A 0.960 0.990 24.39 25.14 B 0.465 0.510 11.82 12.95 C 0.229 0.275 5.82 6.98 D 0.216 0.235 5.49 5.96 E 0.084 0.110 2.14 2.79 H 0.144 0.178 3.66 4.52 J 0.003 0.007 0.08 0.17 K 0.435 — 11.05 — M 45 °NOM 45 °NOM Q 0.115 0.130 2.93 3.30 R 0.246 0.255 6.25 6.47 U 0.720 0.730 18.29 18.54 Case 211-11