SMD diode ID please

Perry Babin · 4th October 2008, 06:17 AM

Can anyone help identify the diode below?

The plastic body of the diode below is ~0.175" x 0.103". The forward breakdown voltage is ~0.44v. The reverse breakdown was higher than the 210v limit of my power supply. They seem to be very leaky when checking on ohms instead of diode check.

Others on similar boards were marked:

X3 72
X3 6N
X3 62

Newer versions of the same board have diodes marked:

XH3 8401

Thanks in advance.

Markus2006 · 7th October 2008, 01:34 PM

Could it be any of components listed here: http://www.tkb-4u.com/code/smdcode/smdcodeX.php ?

Mark

Geek · 7th October 2008, 02:12 PM

I can't help, but I'd like to thank you for the very clear pic.

IMO, this is a nice example of how to ask for help

Markus2006 · 7th October 2008, 06:23 PM

I'm sorry. The Zener diodes that I was thinking of are SOT23 - it's not the one that you are looking for

.

Mark

BWRX · 8th October 2008, 02:05 AM

It's definitely an SMA / DO-214AC package. Doesn't look like On Semi or Diodes Inc. labeling to me.

Perry Babin · 8th October 2008, 03:14 AM

Thanks for the responses.

With the package information, maybe I'll have a better chance of finding it.

8th October 2008, 02:05 AM	#5
BWRX diyAudio Moderator Emeritus Join Date: Jan 2005 Location: Pennsylvania	It's definitely an SMA / DO-214AC package. Doesn't look like On Semi or Diodes Inc. labeling to me. __________________ Brian

8th October 2008, 03:14 AM	#6
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Thanks for the responses. With the package information, maybe I'll have a better chance of finding it. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

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7th October 2008, 01:34 PM	#2
Markus2006 diyAudio Member Join Date: Jan 2006 Location: Poland	Could it be any of components listed here: http://www.tkb-4u.com/code/smdcode/smdcodeX.php ? Mark

7th October 2008, 02:12 PM	#3
Geek diyAudio Member Join Date: Sep 2004	I can't help, but I'd like to thank you for the very clear pic. IMO, this is a nice example of how to ask for help

7th October 2008, 06:23 PM	#4
Markus2006 diyAudio Member Join Date: Jan 2006 Location: Poland	I'm sorry. The Zener diodes that I was thinking of are SOT23 - it's not the one that you are looking for . Mark

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