2-Meter 142-163 MHz Amp - Genuine Mitusbishi M57719N 200 mW In >> 16+ Watts Out

Description

2 Meter 'Brick' Amp - 200 mW Input for 14+ Watts Output @ 12.5 Volts
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GENUINE MITSUBISHI, Revision N
Standard "H2" style package. Small size!
18 Watts
@
13.5 Volts typical
20 Watts
@
17 Volts
Price is for (1) unit.
(1) Mitsubishi M57719N
Datasheet:
https://linearparts.com/documents/M57719N.pdf
Only four leads and ground:
IN, 200 - 400 mW (max) 50
Ω
V
CC1
12.5 - 17 Volts
V
CC2
12.5 - 17 Volts
OUT, 14 - 20 Watts 50
Ω
Ground (Case Mounting Flange)
The simplest way to boost your FM handheld power. Run your handheld on minimum power to stretch battery life. Makes a nice booster for your synthesizer / exciter too. Heatsink is required. Operates in Class 'C' mode. Actual output depends on input power, frequency and voltage. Do not exceed the 400 mW maximum input power. Check the M57719N datasheet charts for specifics:
https://linearparts.com/documents/M57719N.pdf
Application Information
Are you experienced at wiring audio and digital circuitry? Ready to try an RF project for a change, but you're concerned about your limited VHF wiring expertise? Nothing else can make your advancement to the world of RF projects easier. The pure simplicity of this 'brick' module, eliminates virtually all of the critical layout, construction and wiring of the VHF RF circuitry.
Note: Price is for the M57119N module only! PCB, heatsink,
attenuator, connectors, etc. shown below are NOT included.
Need an Attenuator?
WARNING: The absolute maximum input power is 400 mW. If you have a handheld (or exciter) with an output in excess of 400 mW, you must use a 50
Ω attenuator to reduce the input power to a safe level. We recommend limiting input power to around 300 mW.
Example: Handheld is 4 Watts (P1 = 4000 mW). You want to drop it to a safe 300 mW (P2).
Calculate the attenuation needed in dB with the formula dB=(10)*log(P1/P2). You will need an 11.25 dB attenuator.
Next, use this attenuator pad calculator link:
https://www.daycounter.com/Calculators/PI-T-Pad-Attenuator-Calculator.phtml
. Enter 11.25 and 50 Ohms to get the resistor values for both the 'T' and 'Pi' pad configurations.
IMPORTANT: Use NON-inductive resistors with enough power rating.
200 mW In at 148 MHz at 13.5 Volts, will produce 18 Watts Out.
Layout and construction of a basic amplifier is very simple.
Use an etch-resist pen to layout the PCB and mount it all to your heatsink.
Select your connectors or terminate directly with 50
Ω coax cables.
Info: Plans for a bi-directional T/R switch design for this 'H2' style package are featured in recent editions of "The ARRL Handbook for Radio Amateurs". From the 2000/1/2 editions, a PCB can be made from this template:
https://linearparts.com/documents/ARRL-2000-brick-template.pdf
. Alternatively, some discrete component circuit designs such as -
https://linearparts.com/images/tr-switch.jpg
- can be modified to incorporate the M57719N. Other plans can be found on the internet. One customer reported using this amp in his Icom IC-3200.
The M57719N uses the same H2 package as the S-AV7 / S-AV17 and is wired similarly.
But specifications do vary. Each model has it's own performance advantages. Compare the datasheets to determine if substitution is appropriate in your application.
Retail price 8. Supply is limited.
Datasheet for Mitsubishi M57719N:
https://linearparts.com/documents/M57719N.pdf
RF2-1
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We strive to give full and accurate descriptions to earn your 5-Star Feedback. Any known deficiencies are listed in the detailed description. Datasheets are provided when available. Some datasheets may be close but not a perfect match because of part revisions or because they may be from a different manufacturer. If you have any questions concerning our products please email us before purchasing. Your complete satisfaction is important to us before and after the sale. Thank you.
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