searching SMD diode for Samsung Harddisk P80 SP1614C

[Rainer Hinz]

Hi there,

because of a defect in my PC power supply two of my beloved harddisks
P80 (Samsung SP1614C) past away. I think they got over-voltage because
an SMD diode got "cooked". It really looks quite burned. Its soldered
with two pins. And warranty is also gone because the defect was in the
power supply and not the drive itself.

I replaced the printed circuit board from another good drive. The
mechanical part works ok and I can read all data. But where do I get a
new printed circuit board? As I wrote the warranty is gone and Samsung
support wouldn't help.

Or could I change the SMD diode? With a magnifying glass I read the
following:

eVU
AE
GP 503

On my second HD drive I found the same SMD diode with other symbols:

QE
RAE.

In front of the "QE" is a circle with two horizontal points in it.

Does anybody know what this SMD coding means? Is there a compatibe SMD
diode I could use? Many thanks for your answer!

Rainer

 

[Art]

These items are not supplied as replacment parts but come as part of the
whole drive assembly. E-Bay for the exact same drive, model number, and
capacity. Then attempt repairing your originals. Best bet would be to
replace both drives, use the good drive card (PC Board) you have to transfer
the data you require to the new drives, and warehouse the old ones.
"Rainer Hinz" <nomail@invalid> wrote in message
news:d7tb3h$52k$03$1@news.t-online.com...

Hi there,

because of a defect in my PC power supply two of my beloved harddisks P80
(Samsung SP1614C) past away. I think they got over-voltage because an SMD
diode got "cooked". It really looks quite burned. Its soldered with two
pins. And warranty is also gone because the defect was in the power supply
and not the drive itself.

I replaced the printed circuit board from another good drive. The
mechanical part works ok and I can read all data. But where do I get a new
printed circuit board? As I wrote the warranty is gone and Samsung support
wouldn't help.

Or could I change the SMD diode? With a magnifying glass I read the
following:

eVU
AE
GP 503

On my second HD drive I found the same SMD diode with other symbols:

QE
RAE.

In front of the "QE" is a circle with two horizontal points in it.

Does anybody know what this SMD coding means? Is there a compatibe SMD
diode I could use? Many thanks for your answer!

Rainer

 

[legg]

On Sun, 05 Jun 2005 00:48:03 +0200, Rainer Hinz <nomail@invalid>
wrote:

Hi there,

because of a defect in my PC power supply two of my beloved harddisks
P80 (Samsung SP1614C) past away. I think they got over-voltage because
an SMD diode got "cooked". It really looks quite burned. Its soldered
with two pins. And warranty is also gone because the defect was in the
power supply and not the drive itself.

I replaced the printed circuit board from another good drive. The
mechanical part works ok and I can read all data. But where do I get a
new printed circuit board? As I wrote the warranty is gone and Samsung
support wouldn't help.

Or could I change the SMD diode? With a magnifying glass I read the
following:

eVU
AE
GP 503

On my second HD drive I found the same SMD diode with other symbols:

QE
RAE.

In front of the "QE" is a circle with two horizontal points in it.

SMAJ5.0A DO-214AC General Semiconductor - Vishay
http://www.vishay.com/doc?88390

Should be fairly easy to sub.

The unit should also run without the protection device in place,
(until the power supply flakes out again).

RL

 

[Rainer Hinz]

Hi legg,

many thanks for the hint.

SMAJ5.0A DO-214AC General Semiconductor - Vishay
http://www.vishay.com/doc?88390

Should be fairly easy to sub.

The unit should also run without the protection device in place,
(until the power supply flakes out again).

Do you mean that I do not need the SMD diode and could remove it? To
avoid SMD desoldering could I also bypass the SMD diode with a peace of
wire?

Rainer

 

[legg]

On Sun, 05 Jun 2005 20:37:19 +0200, Rainer Hinz <nomail@invalid>
wrote:

Hi legg,

many thanks for the hint.

SMAJ5.0A DO-214AC General Semiconductor - Vishay
http://www.vishay.com/doc?88390

Should be fairly easy to sub.

The unit should also run without the protection device in place,
(until the power supply flakes out again).

Do you mean that I do not need the SMD diode and could remove it? To
avoid SMD desoldering could I also bypass the SMD diode with a peace of
wire?

If it is the only damaged part, removing it should restore basic
function.

Desoldering would be the most civilized way to do this, allowing for
later replacement, but you basically need an open circuit where the
failed part currently resides.

Crushing, cutting, grinding or other methods of physical removal would
serve the same purpose.

RL

 

[Art]

Modest heat with an isolated soldering device will allow removal of the
solder connecting the device to the board, and will also loosen the glue
physically holding it to the circuit board. Delicate procedure due to the
physical size of the device, mark what direction the anode and cathode are
currently connected to, if not sure, a drawing or photo will normally
suffice. Cheers
"legg" <legg@nospam.magma.ca> wrote in message
news:eeg7a1t4pl6pgobqbu7v1en87eop93avat@4ax.com...

On Sun, 05 Jun 2005 20:37:19 +0200, Rainer Hinz <nomail@invalid
wrote:

Hi legg,

many thanks for the hint.

SMAJ5.0A DO-214AC General Semiconductor - Vishay
http://www.vishay.com/doc?88390

Should be fairly easy to sub.

The unit should also run without the protection device in place,
(until the power supply flakes out again).

Do you mean that I do not need the SMD diode and could remove it? To
avoid SMD desoldering could I also bypass the SMD diode with a peace of
wire?

If it is the only damaged part, removing it should restore basic
function.

Desoldering would be the most civilized way to do this, allowing for
later replacement, but you basically need an open circuit where the
failed part currently resides.

Crushing, cutting, grinding or other methods of physical removal would
serve the same purpose.

RL