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Burned out Resistors and semiconductors 803a

Gladstone1909

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Seem to have more burned out parts
having trouble finding resistors and semiconductors HLM-20-10z7r50j,HLM-20-10Z-20ROJ,HLM-10-10Z1301J,1N5406 semiconductor,V68MA3B as listed in TM9-6115-642-24P parts manual checked 6 places on net am i using wrong numbers or are they discontinued Help... Regards Gladstone 1909
 

Guyfang

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It would help if you listed the figure and item number. Did you also use the NSN to look for them?

HLM-20-10z7r50j
NSN 5905-01-368-2538
Part number:HLM-20-10z7r50j
Part number:HLM-20-10Z 7.5 OHMS 5PCT
manufacturer:
VISHAY DALE ELECTRONICS, LLCDBA VISHAY INTERTECHNOLOGYDIV VISHAY AMERICAS1122 23RD STCOLUMBUSNE68601-3647UNITED STATES

I got all this info by plugging the number into my browser. Also, by looking at PART TARGET website, it gave me all the tech data for this part. An electronic store should be able to provide you with the parts when you give them the data sheet.

Or call Vishy Dale at:4025636286. If that number is no longer good, google it.

Tech data
TEMP COEFFICIENT OF RESISTANCE IN PPM PER DEG CELSIUS-50.0/+50.0
III ELECTRICAL RESISTANCE7.500 OHMS
RESISTANCE TOLERANCE IN PERCENT-5.000/+5.000
AMBIENT TEMP IN DEG CELSIUS AT FULL RATED POWER25.0
AMBIENT TEMP IN DEG CELSIUS AT ZERO PERCENT RATED POWER350.0
TEMP RANGE OF TEMP COEFFICIENT IN DEG CELSIUS-55.0/+350.0
INCLOSURE METHODENCAPSULATED
TERMINAL TYPETAB, SOLDER LUG
RELIABILITY INDICATORNOT ESTABLISHED
TERMINAL LENGTH0.225 INCHES NOMINAL
BODY LENGTH1.999 INCHES MINIMUM AND 2.125 INCHES MAXIMUM
BODY WIDTH0.375 INCHES NOMINAL
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH2.251 INCHES MINIMUM AND 2.375 INCHES MAXIMUM
POWER DISSIPATION RATING IN WATTS20.000 FREE AIR
TERMINAL WIDTH0.125 INCHES NOMINAL
MOUNTING HOLE SIZE0.126 INCHES NOMINAL
STYLE DESIGNATORTERMINALS ONE EDGE

This company seemed to have them.
ODYSSEY ELECTRONICS LTD
659 CHANDLER STREET
TEWKSBURY, MA 01876
T: 978-640-9453 F: 978-851-0169


This company also seemed to have them.
SIERRA IC INC

Tel 1-(866)296-0911
Fax (704)919-5496
16151 Lancaster Hwy
Charlotte NC 28277

Sales : Sales@sierraic.com
Purchasing : Purchasing@sierraic.com

All other Questions you can Email Support@sierraic.com
I didn't look all the parts up. I think you can give these firms a call, or email. They should be able to help you. Or give you a good place to start.

Oh, yeah. Heath kit. I would mail them. The Heath kit company has some stuff like resisters and things, sure bet!
 
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kloppk

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Earlier his year someone here posted up that the Vishay FSOT2011E7R500JE will work for replacing R10-R13.
Mouser has them in stock. About $30 a pop.
https://www.mouser.com/ProductDetai...bXrIkmrvidKrBvFdHgbZ4FmfLn8FO6ZqaUbmETcfYIA==
They also have the 1N5406. Many to choose from.
And the V68MA3B
https://www.mouser.com/ProductDetai...=/ha2pyFadug2AjjPyJ7JhZcjQ1kjTDkpIneoSPLblKI=

As for R14 and R15 you may need to replace them with an equivalent wire wound resistor of similar specs.

You might look at the classifieds for someone parting out a gen set and selling the whole assembly.
 

Guyfang

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Check the SMR codes for the parts. See if there is a difference between the 60 and 400 hertz models. I don't seem to remember there being a difference, but check. I would also see about getting extra stand offs in case they break on you. This often happens when you use too much heat to un solder, re solder the wires. Do not use too much heat on any of the components, use a heat sink if you have one.

A good question to ask, is how come the parts burned up? Is this a new to you gen set? Or did someone else burn them up?

A good tip tip is to remove the side panel of the control cube. Makes re soldering very much easyer.
 

Daybreak

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Check the SMR codes for the parts. See if there is a difference between the 60 and 400 hertz models. I don't seem to remember there being a difference, but check. I would also see about getting extra stand offs in case they break on you. This often happens when you use too much heat to un solder, re solder the wires. Do not use too much heat on any of the components, use a heat sink if you have one.

A good question to ask, is how come the parts burned up? Is this a new to you gen set? Or did someone else burn them up?

A good tip tip is to remove the side panel of the control cube. Makes re soldering very much easyer.
Howdy,
Yes, the resistor panels are the same. MEP-802A, MEP-812A, MEP-803A, MEP-813A
diode panel.jpg
 
Last edited:

DieselAddict

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Earlier his year someone here posted up that the Vishay FSOT2011E7R500JE will work for replacing R10-R13.
Mouser has them in stock. About $30 a pop.
https://www.mouser.com/ProductDetai...bXrIkmrvidKrBvFdHgbZ4FmfLn8FO6ZqaUbmETcfYIA==
They also have the 1N5406. Many to choose from.
And the V68MA3B
https://www.mouser.com/ProductDetai...=/ha2pyFadug2AjjPyJ7JhZcjQ1kjTDkpIneoSPLblKI=

As for R14 and R15 you may need to replace them with an equivalent wire wound resistor of similar specs.

You might look at the classifieds for someone parting out a gen set and selling the whole assembly.
These look to have the same specs and are cheaper to boot.

https://www.mouser.com/productdetail/ohmite/b20j7r5e?qs=sGAEpiMZZMtlubZbdhIBIGDEM/0yB0jqKKv2VipyT8M=
 

Gladstone1909

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Still looking for 803 a resistors Gladstone

Hello Managed to order all but R14 and R15 Resistors for 803A HLM-20-10Z-20ROJ AND HLM-20-10Z-1301J Used nsn numbers and got specs on them has any one else had trouble finding these resistors found others from mouser.com many thanks...
 

Guyfang

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MRC REQUIREMENTS
STATEMENT
CLEAR_TEXT_REPLY USMetric FractionsDecimal
AAPPIII ELECTRICAL RESISTANCE20.000 OHMS
AAPQRESISTANCE TOLERANCE IN PERCENT-5.000/+5.000
AAQZINCLOSURE METHODENCAPSULATED
AARBTERMINAL TYPETAB, SOLDER LUG
AARGRELIABILITY INDICATORNOT ESTABLISHED
ADAQBODY LENGTH2.060 INCHES NOMINAL
ADATBODY WIDTH0.375 INCHES NOMINAL
AEBYDISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH2.298 INCHES MINIMUM AND 2.328 INCHES MAXIMUM
AEFBPOWER DISSIPATION RATING IN WATTS20.000 FREE AIR
BYMLMOUNTING HOLE SIZE0.126 INCHES MAXIMUM
STYLSTYLE DESIGNATORTERMINALS ONE EDGE

AAPETEMP COEFFICIENT OF RESISTANCE IN PPM PER DEG CELSIUS-30.0/+30.0
AAPPIII ELECTRICAL RESISTANCE1.300 KILOHMS
AAPQRESISTANCE TOLERANCE IN PERCENT-5.000/+5.000
AAQFAMBIENT TEMP IN DEG CELSIUS AT FULL RATED POWER25.0
AAQGAMBIENT TEMP IN DEG CELSIUS AT ZERO PERCENT RATED POWER350.0
AAQHTEMP RANGE OF TEMP COEFFICIENT IN DEG CELSIUS-55.0/+350.0
AAQZINCLOSURE METHODENCAPSULATED
AARBTERMINAL TYPETAB, SOLDER LUG
AAREREACTANCE CHARACTERISTICINDUCTIVE
AARGRELIABILITY INDICATORNOT ESTABLISHED
ABJTTERMINAL LENGTH0.225 INCHES NOMINAL
ADAQBODY LENGTH0.688 INCHES MINIMUM AND 0.813 INCHES MAXIMUM
ADATBODY WIDTH0.375 INCHES NOMINAL
AEBYDISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH0.938 INCHES MINIMUM AND 1.062 INCHES MAXIMUM
AEFBPOWER DISSIPATION RATING IN WATTS10.000 FREE AIR
AFWWTERMINAL WIDTH0.125 INCHES NOMINAL
BYMLMOUNTING HOLE SIZE0.126 INCHES NOMINAL
STYLSTYLE DESIGNATORTERMINALS ONE EDGE
I
If you give this info to Mouser, they cant give you a sub?
 
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