Specification

[Ken]

Hello!
I want to know more about Motorola MFC4060A
It's a small Positive Voltage Regulator 8-35 V 0.2 A
And it's over 30 years old.
I want to know the maximum input voltage it can handle.
My old tuner use this and the input voltage is 42.5 V
and I suspect it to be a little high. Output is 20 V.
I don't want it to break down.

 

[Thomas C. Sefranek]

Hello!
I want to know more about Motorola MFC4060A
It's a small Positive Voltage Regulator 8-35 V 0.2 A
And it's over 30 years old.
I want to know the maximum input voltage it can handle.

MFC4060
--

Input 8-35 volts.

My old tuner use this and the input voltage is 42.5 V
and I suspect it to be a little high. Output is 20 V.
I don't want it to break down.

Tom

*
| __O Thomas C. Sefranek [email protected]
|_-\<,_ Amateur Radio Operator: WA1RHP
(*)/ (*) Bicycle mobile on 145.41, 448.625 MHz

http://hamradio.cmcorp.com/inventory/Inventory.html
http://www.harvardrepeater.org

 

[Watson A.Name - 'Watt Sun']

Hello!
I want to know more about Motorola MFC4060A
It's a small Positive Voltage Regulator 8-35 V 0.2 A
And it's over 30 years old.
I want to know the maximum input voltage it can handle.
My old tuner use this and the input voltage is 42.5 V
and I suspect it to be a little high. Output is 20 V.
I don't want it to break down.

Those old Motorola MFC parts were 'functional circuits', usually in
some weird package like a four legged package with the legs staggered.
They're next to impossible to find today. You might consider putting
a zener in series with the input to drop the voltage down to a decent
level. Maybe a 9V 1W zener would do it.

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[Ken]

Those old Motorola MFC parts were 'functional circuits', usually in
some weird package like a four legged package with the legs staggered.
They're next to impossible to find today. You might consider putting
a zener in series with the input to drop the voltage down to a decent
level. Maybe a 9V 1W zener would do it.

Thank you and Thomas C. Sefranek.
Now I have to lower the voltage on the input
under 35 volt, and thats no problem for me to do.
I don't want it to break down, but it have been worked
without any problems in över 30 years now.

+ Ken + (Sweden)

 

[Per-Ake Andersson]

Hello!
I want to know more about Motorola MFC4060A
It's a small Positive Voltage Regulator 8-35 V 0.2 A
And it's over 30 years old.
I want to know the maximum input voltage it can handle.
My old tuner use this and the input voltage is 42.5 V
and I suspect it to be a little high. Output is 20 V.
I don't want it to break down.

Max input voltage MFC4060A is 38V
(Ref. D.A.T.A Linear 1976)

Motorola Databook for MFC4060 (no A) also says 38V.


/Per-Ake

 

[Ken]

Max input voltage MFC4060A is 38V
(Ref. D.A.T.A Linear 1976)
Motorola Databook for MFC4060 (no A) also says 38V.

Thank you for that information.
Do you know the minimum dropout voltage it can handle?
I'm now down at 35V input and want to know how low I can go.
Output I use is exaktly 20V and I want to know if it can
handle an input voltage down to 29V with this 20V output?
I'm planning on reconstruct the PSU to use the FM-tuner
on DC supply instead (now 230V AC), and if I do so
the MFC4060A get about 30V DC input (29-31V).

 

[Ken]

I'm planning on reconstruct the PSU to use the FM-tuner
on DC supply instead (now 230V AC), and if I do so
the MFC4060A get about 30V DC input (29-31V).

I planning to use a standard DC/DC converter with input 9-36V
and output +-15V (30V and 15V) to feed my tuner in the future
on my battery system 12V now and probably 24V in the future.
Some of this DC/DC converters is interest me.
http://www.tracopower.com/products/ten4.htm
http://www.tracopower.com/products/ten6.htm
http://www.tracopower.com/products/ten12.htm