MRF492A

更新时间： 2024-11-18 13:11:51

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摩托罗拉 - MOTOROLA		晶体射频双极晶体管放大器局域网
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MRF492A 数据手册

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SEMICONDUCTOR TECHNICAL DATA

The RF Line

Designed for 12.5 volt low band VHF large–signal power amplifier applica-

tions in commercial and industrial FM equipment.

•

Specified 12.5 V, 50 MHz Characteristics —

Output Power = 70 W

70 W, 50 MHz

Minimum Gain = 11 dB

Efficiency = 50%

RF POWER

TRANSISTOR

NPN SILICON

•

Load Mismatch Capability at High Line and RF Overdrive

MAXIMUM RATINGS

Rating

Symbol

Value

Unit

Vdc

Adc

Collector–Emitter Voltage

Collector–Base Voltage

Emitter–Base Voltage

CEO

CBO

EBO

4.0

Collector Current — Continuous

Total Device Dissipation @ T = 25°C (1)

Derate above 25°C

250

1.43

Watts

W/°C

CASE 211–11, STYLE 1

Storage Temperature Range

THERMAL CHARACTERISTICS

stg

–65 to +150

°C

Characteristic

Thermal Resistance, Junction to Case (2)

Symbol

Max

Unit

0.7

°C/W

θJC

ELECTRICAL CHARACTERISTICS (T = 25°C unless otherwise noted.)

Characteristic

Symbol

Min

Typ

Max

Unit

OFF CHARACTERISTICS

Collector–Emitter Breakdown Voltage (I = 100 mAdc, I = 0)

(BR)CEO

4.0

—

Vdc

Collector–Emitter Breakdown Voltage (I = 50 mAdc, V

= 0)

(BR)CES

(BR)EBO

Emitter–Base Breakdown Voltage (I = 10 mAdc, I = 0)

Vdc

Collector Cutoff Current (V

= 13.6 Vdc, V

= 0)

mAdc

CES

ON CHARACTERISTICS

DC Current Gain (I = 5.0 Adc, V

= 5.0 Vdc)

—

150

450

—

DYNAMIC CHARACTERISTICS

Output Capacitance (V

= 15 Vdc, I = 0, f = 1.0 MHz)

275

FUNCTIONAL TESTS

Common–Emitter Amplifier Power Gain

—

= 12.5 Vdc, P

= 70 W, f = 50 MHz)

out

Collector Efficiency

(V = 12.5 Vdc, P

= 70 W, f = 50 MHz)

NOTES:

out

1. These devices are designed for RF operation. The total device dissipation rating applies only when the devices are operated as RF

amplifiers.

2. Thermal Resistance is determined under specified RF operating conditions by infrared measurement techniques.

MOTOROLA RF DEVICE DATA

Motorola, Inc. 1994

MRF492

12 3 4

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