DESCRIPTION 

The RA20H8994M is a 20-watt RF MOSFET Amplifier 

Module for 12.5-volt mobile radios that operate in the 896- to 

941-MHz range. 

The battery can be connected directly to the drain of the 

enhancement-mode MOSFET transistors. Without the gate 

voltage (VGG=0V), only a small leakage current flows into the 

drain and the RF input signal attenuates up to 60 dB. The output 

power and drain current increase as the gate voltage increases.  

With a gate voltage around 4V (minimum), output power and 

drain current increases substantially. The nominal output power 

becomes available at 4.5V (typical) and 5V (maximum). At 

VGG=5V, the typical gate current is 1 mA. 

This module is designed for non-linear FM modulation, but may 

also be used for linear modulation by setting the drain quiescent 

current with the gate voltage  and controlling the output power 

with the input power. 

FEATURES 

• Enhancement-Mode MOSFET Transistors 

(IDD≅0  @ VDD=12.5V, VGG=0V) 

• Pout>20W, ηT>25%  @ VDD=12.5V, VGG=5V, Pin=50mW 

• Broadband Frequency Range: 896-941MHz 

• Low-Power Control Current IGG=1mA (typ) at VGG=5V 

• Module Size: 66 x 21 x 9.88 mm 

• Linear operation is possible by setting the quiescent drain 

current with the gate voltage and controlling the output power 

with the input power 

RoHS COMPLIANCE 

• RA20H8994M-101  is a RoHS compliant products. 

• RoHS compliance is indicate by the letter “G” after the Lot Marking. 

• This product include the lead in the Glass of electronic parts and the 

lead in electronic Ceramic parts. 

How ever ,it applicable to the following exceptions of RoHS Directions. 

1.Lead in the Glass of a cathode-ray tube, electronic parts, and 

fluorescent tubes. 

2.Lead in electronic Ceramic parts.  

北京京瑞馨科技—供应全新原装正品射频模块、射频管！假一罚十！！！

联系人；何先生

淘宝店：http://bj-rf.taobao.com/

联系电话：182-1045-0337 、010-6492-0890

QQ：5155-2801

全新原装正品供应：

三菱（MITSUBISHI）:

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防雷器件：
P0300ECL、P0300ECLRP1、P0720ECL等P系列

有用到的，都可以与我联系，全新原装正品，优势供应！

我所在位置（标题+图片）

联系地址：北京市朝阳区育慧西里锦绣馨园20号

联系电话：010-52459918      010-64920890

传真号码：010-64964855

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