Help identifying SMD component
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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
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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 49 mins ago
XxLogoXxLogo
161
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 49 mins ago
XxLogoXxLogo
161
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 49 mins ago
XxLogoXxLogo
161
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 49 mins ago
XxLogoXxLogo
161
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 49 mins ago
XxLogoXxLogo
161
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 49 mins ago
XxLogoXxLogo
161
asked 49 mins ago
XxLogoXxLogo
161
161
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.
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2 Answers
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oldest
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$begingroup$
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 35 mins ago
JasenJasen
10.3k1428
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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 34 mins ago
Tom CarpenterTom Carpenter
38.7k271118
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2 Answers
2
active
oldest
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2 Answers
2
active
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$begingroup$
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 35 mins ago
JasenJasen
10.3k1428
$endgroup$
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 35 mins ago
JasenJasen
10.3k1428
$endgroup$
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 35 mins ago
JasenJasen
10.3k1428
$endgroup$
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 35 mins ago
JasenJasen
10.3k1428
edited 27 mins ago
answered 35 mins ago
JasenJasen
10.3k1428
answered 35 mins ago
JasenJasen
10.3k1428
answered 35 mins ago
JasenJasen
10.3k1428
10.3k1428
add a comment |
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 34 mins ago
Tom CarpenterTom Carpenter
38.7k271118
$endgroup$
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 34 mins ago
Tom CarpenterTom Carpenter
38.7k271118
$endgroup$
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 34 mins ago
Tom CarpenterTom Carpenter
38.7k271118
$endgroup$
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 34 mins ago
Tom CarpenterTom Carpenter
38.7k271118
edited 18 mins ago
answered 34 mins ago
Tom CarpenterTom Carpenter
38.7k271118
answered 34 mins ago
Tom CarpenterTom Carpenter
38.7k271118
answered 34 mins ago
Tom CarpenterTom Carpenter
38.7k271118
38.7k271118
add a comment |
add a comment |
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