Help identifying SMD component
$begingroup$
I’m trying to replicate something I got a few years ago for practical use and I found every component except for this one. It says WL BD on the package and measures 2.58x1.53mm (LxW) and around 1.3mm tall. It has a line towards the 100 ohm resistor leading me to believe it is a diode. I measured the voltage with the diode function on my meter and found it to be 0.352V. Any clue what component it could be?
Thanks!
diodes surface-mount
asked 2 days ago
XxLogoXxLogo
284
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XxLogo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment |
$begingroup$
I’m trying to replicate something I got a few years ago for practical use and I found every component except for this one. It says WL BD on the package and measures 2.58x1.53mm (LxW) and around 1.3mm tall. It has a line towards the 100 ohm resistor leading me to believe it is a diode. I measured the voltage with the diode function on my meter and found it to be 0.352V. Any clue what component it could be?
Thanks!
diodes surface-mount
asked 2 days ago
XxLogoXxLogo
284
New contributor
XxLogo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
I’m trying to replicate something I got a few years ago for practical use and I found every component except for this one. It says WL BD on the package and measures 2.58x1.53mm (LxW) and around 1.3mm tall. It has a line towards the 100 ohm resistor leading me to believe it is a diode. I measured the voltage with the diode function on my meter and found it to be 0.352V. Any clue what component it could be?
Thanks!
diodes surface-mount
asked 2 days ago
XxLogoXxLogo
284
New contributor
XxLogo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
I’m trying to replicate something I got a few years ago for practical use and I found every component except for this one. It says WL BD on the package and measures 2.58x1.53mm (LxW) and around 1.3mm tall. It has a line towards the 100 ohm resistor leading me to believe it is a diode. I measured the voltage with the diode function on my meter and found it to be 0.352V. Any clue what component it could be?
Thanks!
diodes surface-mount
diodes surface-mount
asked 2 days ago
XxLogoXxLogo
284
New contributor
XxLogo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 days ago
XxLogoXxLogo
284
New contributor
XxLogo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 days ago
XxLogoXxLogo
284
New contributor
XxLogo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 days ago
XxLogoXxLogo
284
asked 2 days ago
XxLogoXxLogo
284
284
New contributor
XxLogo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
XxLogo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
XxLogo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
$begingroup$
It will be some form of diode.
Could be a Zener or TVS (transient suppression diode). The very low forward voltage suggests a Schottky diode, however your measurements could be skewed by the rest of the circuit, plus no idea what current your measurement is passing through the diode. Measuring the reverse voltage would be interesting, but that would be risky.
Zener is quite likely based on the circuit.
Based on the dimensions, you have a SOD123 package (typically 1.55mm x 2.65mm).
Decoding the marking is difficult without knowing more about the part. For example, BD could make it a 7.5V Zener diode (PDZ7.5BGW). Alternatively, WL could be a 15V Zener diode (BZT52C15).
A very likely candidate is a Diodes Inc. 18V Zener, specifically BZT52C18. From the datasheet it is marked as follows:
Notice the orientation of the markings.
First you have the bar as expected.
Then a two digit code. In your case "WL" which corresponds to 18V per the following excerpt from the full table:
Then you have a two digit date code placed at a 90 degree angle. In your case BD which decodes as 2014 (B) December (D).
answered 2 days ago
Tom CarpenterTom Carpenter
38.8k271118
$endgroup$
$begingroup$
Thank you for the information. It seems like the BZT52C18 looks the part. I will order this. I would've been searching for hours. Thanks so much
$endgroup$
– XxLogo
2 days ago
add a comment |
$begingroup$
gate-to-source on a MOSFET, almost certaily a zener diode, nothing else makes sense in that location
http://static6.arrow.com/aropdfconversion/b99eb206e21a0aadd3b3bd94e3243174ac46775b/bzt52.pdf
perhaps BZT52B15, 15V
answered 2 days ago
JasenJasen
10.4k1428
$endgroup$
1
$begingroup$
Think above person got it dead on the nail. However, I appreciate you taking the time out to reply. Can't wait to build this to see how it works
$endgroup$
– XxLogo
2 days ago
add a comment |
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2 Answers
2
active
oldest
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2 Answers
2
active
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active
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$begingroup$
It will be some form of diode.
Could be a Zener or TVS (transient suppression diode). The very low forward voltage suggests a Schottky diode, however your measurements could be skewed by the rest of the circuit, plus no idea what current your measurement is passing through the diode. Measuring the reverse voltage would be interesting, but that would be risky.
Zener is quite likely based on the circuit.
Based on the dimensions, you have a SOD123 package (typically 1.55mm x 2.65mm).
Decoding the marking is difficult without knowing more about the part. For example, BD could make it a 7.5V Zener diode (PDZ7.5BGW). Alternatively, WL could be a 15V Zener diode (BZT52C15).
A very likely candidate is a Diodes Inc. 18V Zener, specifically BZT52C18. From the datasheet it is marked as follows:
Notice the orientation of the markings.
First you have the bar as expected.
Then a two digit code. In your case "WL" which corresponds to 18V per the following excerpt from the full table:
Then you have a two digit date code placed at a 90 degree angle. In your case BD which decodes as 2014 (B) December (D).
answered 2 days ago
Tom CarpenterTom Carpenter
38.8k271118
$endgroup$
$begingroup$
Thank you for the information. It seems like the BZT52C18 looks the part. I will order this. I would've been searching for hours. Thanks so much
$endgroup$
– XxLogo
2 days ago
add a comment |
$begingroup$
It will be some form of diode.
Could be a Zener or TVS (transient suppression diode). The very low forward voltage suggests a Schottky diode, however your measurements could be skewed by the rest of the circuit, plus no idea what current your measurement is passing through the diode. Measuring the reverse voltage would be interesting, but that would be risky.
Zener is quite likely based on the circuit.
Based on the dimensions, you have a SOD123 package (typically 1.55mm x 2.65mm).
Decoding the marking is difficult without knowing more about the part. For example, BD could make it a 7.5V Zener diode (PDZ7.5BGW). Alternatively, WL could be a 15V Zener diode (BZT52C15).
A very likely candidate is a Diodes Inc. 18V Zener, specifically BZT52C18. From the datasheet it is marked as follows:
Notice the orientation of the markings.
First you have the bar as expected.
Then a two digit code. In your case "WL" which corresponds to 18V per the following excerpt from the full table:
Then you have a two digit date code placed at a 90 degree angle. In your case BD which decodes as 2014 (B) December (D).
answered 2 days ago
Tom CarpenterTom Carpenter
38.8k271118
$endgroup$
$begingroup$
Thank you for the information. It seems like the BZT52C18 looks the part. I will order this. I would've been searching for hours. Thanks so much
$endgroup$
– XxLogo
2 days ago
add a comment |
$begingroup$
It will be some form of diode.
Could be a Zener or TVS (transient suppression diode). The very low forward voltage suggests a Schottky diode, however your measurements could be skewed by the rest of the circuit, plus no idea what current your measurement is passing through the diode. Measuring the reverse voltage would be interesting, but that would be risky.
Zener is quite likely based on the circuit.
Based on the dimensions, you have a SOD123 package (typically 1.55mm x 2.65mm).
Decoding the marking is difficult without knowing more about the part. For example, BD could make it a 7.5V Zener diode (PDZ7.5BGW). Alternatively, WL could be a 15V Zener diode (BZT52C15).
A very likely candidate is a Diodes Inc. 18V Zener, specifically BZT52C18. From the datasheet it is marked as follows:
Notice the orientation of the markings.
First you have the bar as expected.
Then a two digit code. In your case "WL" which corresponds to 18V per the following excerpt from the full table:
Then you have a two digit date code placed at a 90 degree angle. In your case BD which decodes as 2014 (B) December (D).
answered 2 days ago
Tom CarpenterTom Carpenter
38.8k271118
$endgroup$
It will be some form of diode.
Could be a Zener or TVS (transient suppression diode). The very low forward voltage suggests a Schottky diode, however your measurements could be skewed by the rest of the circuit, plus no idea what current your measurement is passing through the diode. Measuring the reverse voltage would be interesting, but that would be risky.
Zener is quite likely based on the circuit.
Based on the dimensions, you have a SOD123 package (typically 1.55mm x 2.65mm).
Decoding the marking is difficult without knowing more about the part. For example, BD could make it a 7.5V Zener diode (PDZ7.5BGW). Alternatively, WL could be a 15V Zener diode (BZT52C15).
A very likely candidate is a Diodes Inc. 18V Zener, specifically BZT52C18. From the datasheet it is marked as follows:
Notice the orientation of the markings.
First you have the bar as expected.
Then a two digit code. In your case "WL" which corresponds to 18V per the following excerpt from the full table:
Then you have a two digit date code placed at a 90 degree angle. In your case BD which decodes as 2014 (B) December (D).
answered 2 days ago
Tom CarpenterTom Carpenter
38.8k271118
edited 2 days ago
answered 2 days ago
Tom CarpenterTom Carpenter
38.8k271118
answered 2 days ago
Tom CarpenterTom Carpenter
38.8k271118
answered 2 days ago
Tom CarpenterTom Carpenter
38.8k271118
38.8k271118
$begingroup$
Thank you for the information. It seems like the BZT52C18 looks the part. I will order this. I would've been searching for hours. Thanks so much
$endgroup$
– XxLogo
2 days ago
add a comment |
$begingroup$
Thank you for the information. It seems like the BZT52C18 looks the part. I will order this. I would've been searching for hours. Thanks so much
$endgroup$
– XxLogo
2 days ago
$begingroup$
Thank you for the information. It seems like the BZT52C18 looks the part. I will order this. I would've been searching for hours. Thanks so much
$endgroup$
– XxLogo
2 days ago
$begingroup$
Thank you for the information. It seems like the BZT52C18 looks the part. I will order this. I would've been searching for hours. Thanks so much
$endgroup$
– XxLogo
2 days ago
add a comment |
$begingroup$
gate-to-source on a MOSFET, almost certaily a zener diode, nothing else makes sense in that location
http://static6.arrow.com/aropdfconversion/b99eb206e21a0aadd3b3bd94e3243174ac46775b/bzt52.pdf
perhaps BZT52B15, 15V
answered 2 days ago
JasenJasen
10.4k1428
$endgroup$
1
$begingroup$
Think above person got it dead on the nail. However, I appreciate you taking the time out to reply. Can't wait to build this to see how it works
$endgroup$
– XxLogo
2 days ago
add a comment |
$begingroup$
gate-to-source on a MOSFET, almost certaily a zener diode, nothing else makes sense in that location
http://static6.arrow.com/aropdfconversion/b99eb206e21a0aadd3b3bd94e3243174ac46775b/bzt52.pdf
perhaps BZT52B15, 15V
answered 2 days ago
JasenJasen
10.4k1428
$endgroup$
1
$begingroup$
Think above person got it dead on the nail. However, I appreciate you taking the time out to reply. Can't wait to build this to see how it works
$endgroup$
– XxLogo
2 days ago
add a comment |
$begingroup$
gate-to-source on a MOSFET, almost certaily a zener diode, nothing else makes sense in that location
http://static6.arrow.com/aropdfconversion/b99eb206e21a0aadd3b3bd94e3243174ac46775b/bzt52.pdf
perhaps BZT52B15, 15V
answered 2 days ago
JasenJasen
10.4k1428
$endgroup$
gate-to-source on a MOSFET, almost certaily a zener diode, nothing else makes sense in that location
http://static6.arrow.com/aropdfconversion/b99eb206e21a0aadd3b3bd94e3243174ac46775b/bzt52.pdf
perhaps BZT52B15, 15V
answered 2 days ago
JasenJasen
10.4k1428
edited 2 days ago
answered 2 days ago
JasenJasen
10.4k1428
answered 2 days ago
JasenJasen
10.4k1428
answered 2 days ago
JasenJasen
10.4k1428
10.4k1428
1
$begingroup$
Think above person got it dead on the nail. However, I appreciate you taking the time out to reply. Can't wait to build this to see how it works
$endgroup$
– XxLogo
2 days ago
add a comment |
1
$begingroup$
Think above person got it dead on the nail. However, I appreciate you taking the time out to reply. Can't wait to build this to see how it works
$endgroup$
– XxLogo
2 days ago
1
1
$begingroup$
Think above person got it dead on the nail. However, I appreciate you taking the time out to reply. Can't wait to build this to see how it works
$endgroup$
– XxLogo
2 days ago
$begingroup$
Think above person got it dead on the nail. However, I appreciate you taking the time out to reply. Can't wait to build this to see how it works
$endgroup$
– XxLogo
2 days ago
add a comment |
XxLogo is a new contributor. Be nice, and check out our Code of Conduct.
XxLogo is a new contributor. Be nice, and check out our Code of Conduct.
XxLogo is a new contributor. Be nice, and check out our Code of Conduct.
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