Diode datasheet reading The 2019 Stack Overflow Developer Survey Results Are Inrectenna, diode selectionReading Diode DatasheetTrying to understand flyback diodes and general diode orientationConstant Voltage model pf Diode circuit analysisWhat is the difference between rectifier/signal diode and zener diode?Should a freewheeling (flyback) diode be used on the coil of a 2-coil latching relay?Rectifiers parametersDifferent Zener Diode SymbolsOutput rectifying diode burning up in LED driverCan I buy an ideal diode? How do I OR two power supplies togetherDiode Array for Full-Wave Rectifier for PoE
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Diode datasheet reading
The 2019 Stack Overflow Developer Survey Results Are Inrectenna, diode selectionReading Diode DatasheetTrying to understand flyback diodes and general diode orientationConstant Voltage model pf Diode circuit analysisWhat is the difference between rectifier/signal diode and zener diode?Should a freewheeling (flyback) diode be used on the coil of a 2-coil latching relay?Rectifiers parametersDifferent Zener Diode SymbolsOutput rectifying diode burning up in LED driverCan I buy an ideal diode? How do I OR two power supplies togetherDiode Array for Full-Wave Rectifier for PoE
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
$begingroup$
What is difference between single and common cathode configuration? If I want to use 2804 for rectifying, will it act as 2800?
HSMS2800 https://datasheet.octopart.com/HSMS-2800-BLKG-Avago-datasheet-7087620.pdf
diodes rectifier
$endgroup$
add a comment |
$begingroup$
What is difference between single and common cathode configuration? If I want to use 2804 for rectifying, will it act as 2800?
HSMS2800 https://datasheet.octopart.com/HSMS-2800-BLKG-Avago-datasheet-7087620.pdf
diodes rectifier
$endgroup$
add a comment |
$begingroup$
What is difference between single and common cathode configuration? If I want to use 2804 for rectifying, will it act as 2800?
HSMS2800 https://datasheet.octopart.com/HSMS-2800-BLKG-Avago-datasheet-7087620.pdf
diodes rectifier
$endgroup$
What is difference between single and common cathode configuration? If I want to use 2804 for rectifying, will it act as 2800?
HSMS2800 https://datasheet.octopart.com/HSMS-2800-BLKG-Avago-datasheet-7087620.pdf
diodes rectifier
diodes rectifier
edited Apr 4 at 14:07
Max Rock
asked Apr 4 at 14:04
Max RockMax Rock
497
497
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
$begingroup$
A 2804 is two 2800's, with their cathodes connected together, put in the same package. You could just use one of them, or you could use both in parallel.
$endgroup$
$begingroup$
That means, if I do not solder one of two terminal side of 2804 diode, it will act as 2800. Am I right?
$endgroup$
– Max Rock
Apr 4 at 14:53
$begingroup$
These are not power diodes, only small signal, for low current<5mA use. Do you understand Max?
$endgroup$
– Sunnyskyguy EE75
Apr 4 at 15:02
$begingroup$
@SunnyskyguyEE75 I am working on project related to rectenna. According to many researches I looked through, mostly used diodes were HSMS 28xx family. I am stuck on choosing right diodes. Most diodes of HSMS 28xx family are obsolete. That is why I am looking for trade-off. What I found HSMS 2804 was not out of stock.
$endgroup$
– Max Rock
Apr 4 at 15:35
$begingroup$
@SunnyskyguyEE75 a bit different question, more broadly about my problem I posted here(electronics.stackexchange.com/questions/428821/…)
$endgroup$
– Max Rock
Apr 4 at 15:42
$begingroup$
hmm that schematic does not reflect your readings. "circuit gave output 14.5V and 45uA on 200 Ohms load." does not make sense. 45uA on 200 Ohms is 9mV
$endgroup$
– Sunnyskyguy EE75
Apr 4 at 15:48
|
show 3 more comments
$begingroup$
As you can see in the table, every package has identical single diode specifications.
But your question is "If I want to use 2804 for rectifying, will it act as 2800?"
The temperature rise will be double sharing one package for two diodes.
Answer: Yes for peak currents <=1mA
No , if near Ip=10mA do not use if temp rise exceeds 70'C above worst case board temp.
Although they have identical characteristics, now it means the dual diode package must share the same thermal resistance of;
500°C/W for SOT-23 and 150°C/W for SOT-323
You must work out the temp rise, but it means your DC load must be << 1mA since the diode peak current into a storage cap with 10% ripple will be 10mA
$endgroup$
add a comment |
Your Answer
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
A 2804 is two 2800's, with their cathodes connected together, put in the same package. You could just use one of them, or you could use both in parallel.
$endgroup$
$begingroup$
That means, if I do not solder one of two terminal side of 2804 diode, it will act as 2800. Am I right?
$endgroup$
– Max Rock
Apr 4 at 14:53
$begingroup$
These are not power diodes, only small signal, for low current<5mA use. Do you understand Max?
$endgroup$
– Sunnyskyguy EE75
Apr 4 at 15:02
$begingroup$
@SunnyskyguyEE75 I am working on project related to rectenna. According to many researches I looked through, mostly used diodes were HSMS 28xx family. I am stuck on choosing right diodes. Most diodes of HSMS 28xx family are obsolete. That is why I am looking for trade-off. What I found HSMS 2804 was not out of stock.
$endgroup$
– Max Rock
Apr 4 at 15:35
$begingroup$
@SunnyskyguyEE75 a bit different question, more broadly about my problem I posted here(electronics.stackexchange.com/questions/428821/…)
$endgroup$
– Max Rock
Apr 4 at 15:42
$begingroup$
hmm that schematic does not reflect your readings. "circuit gave output 14.5V and 45uA on 200 Ohms load." does not make sense. 45uA on 200 Ohms is 9mV
$endgroup$
– Sunnyskyguy EE75
Apr 4 at 15:48
|
show 3 more comments
$begingroup$
A 2804 is two 2800's, with their cathodes connected together, put in the same package. You could just use one of them, or you could use both in parallel.
$endgroup$
$begingroup$
That means, if I do not solder one of two terminal side of 2804 diode, it will act as 2800. Am I right?
$endgroup$
– Max Rock
Apr 4 at 14:53
$begingroup$
These are not power diodes, only small signal, for low current<5mA use. Do you understand Max?
$endgroup$
– Sunnyskyguy EE75
Apr 4 at 15:02
$begingroup$
@SunnyskyguyEE75 I am working on project related to rectenna. According to many researches I looked through, mostly used diodes were HSMS 28xx family. I am stuck on choosing right diodes. Most diodes of HSMS 28xx family are obsolete. That is why I am looking for trade-off. What I found HSMS 2804 was not out of stock.
$endgroup$
– Max Rock
Apr 4 at 15:35
$begingroup$
@SunnyskyguyEE75 a bit different question, more broadly about my problem I posted here(electronics.stackexchange.com/questions/428821/…)
$endgroup$
– Max Rock
Apr 4 at 15:42
$begingroup$
hmm that schematic does not reflect your readings. "circuit gave output 14.5V and 45uA on 200 Ohms load." does not make sense. 45uA on 200 Ohms is 9mV
$endgroup$
– Sunnyskyguy EE75
Apr 4 at 15:48
|
show 3 more comments
$begingroup$
A 2804 is two 2800's, with their cathodes connected together, put in the same package. You could just use one of them, or you could use both in parallel.
$endgroup$
A 2804 is two 2800's, with their cathodes connected together, put in the same package. You could just use one of them, or you could use both in parallel.
answered Apr 4 at 14:09
Neil_UKNeil_UK
78.9k285182
78.9k285182
$begingroup$
That means, if I do not solder one of two terminal side of 2804 diode, it will act as 2800. Am I right?
$endgroup$
– Max Rock
Apr 4 at 14:53
$begingroup$
These are not power diodes, only small signal, for low current<5mA use. Do you understand Max?
$endgroup$
– Sunnyskyguy EE75
Apr 4 at 15:02
$begingroup$
@SunnyskyguyEE75 I am working on project related to rectenna. According to many researches I looked through, mostly used diodes were HSMS 28xx family. I am stuck on choosing right diodes. Most diodes of HSMS 28xx family are obsolete. That is why I am looking for trade-off. What I found HSMS 2804 was not out of stock.
$endgroup$
– Max Rock
Apr 4 at 15:35
$begingroup$
@SunnyskyguyEE75 a bit different question, more broadly about my problem I posted here(electronics.stackexchange.com/questions/428821/…)
$endgroup$
– Max Rock
Apr 4 at 15:42
$begingroup$
hmm that schematic does not reflect your readings. "circuit gave output 14.5V and 45uA on 200 Ohms load." does not make sense. 45uA on 200 Ohms is 9mV
$endgroup$
– Sunnyskyguy EE75
Apr 4 at 15:48
|
show 3 more comments
$begingroup$
That means, if I do not solder one of two terminal side of 2804 diode, it will act as 2800. Am I right?
$endgroup$
– Max Rock
Apr 4 at 14:53
$begingroup$
These are not power diodes, only small signal, for low current<5mA use. Do you understand Max?
$endgroup$
– Sunnyskyguy EE75
Apr 4 at 15:02
$begingroup$
@SunnyskyguyEE75 I am working on project related to rectenna. According to many researches I looked through, mostly used diodes were HSMS 28xx family. I am stuck on choosing right diodes. Most diodes of HSMS 28xx family are obsolete. That is why I am looking for trade-off. What I found HSMS 2804 was not out of stock.
$endgroup$
– Max Rock
Apr 4 at 15:35
$begingroup$
@SunnyskyguyEE75 a bit different question, more broadly about my problem I posted here(electronics.stackexchange.com/questions/428821/…)
$endgroup$
– Max Rock
Apr 4 at 15:42
$begingroup$
hmm that schematic does not reflect your readings. "circuit gave output 14.5V and 45uA on 200 Ohms load." does not make sense. 45uA on 200 Ohms is 9mV
$endgroup$
– Sunnyskyguy EE75
Apr 4 at 15:48
$begingroup$
That means, if I do not solder one of two terminal side of 2804 diode, it will act as 2800. Am I right?
$endgroup$
– Max Rock
Apr 4 at 14:53
$begingroup$
That means, if I do not solder one of two terminal side of 2804 diode, it will act as 2800. Am I right?
$endgroup$
– Max Rock
Apr 4 at 14:53
$begingroup$
These are not power diodes, only small signal, for low current<5mA use. Do you understand Max?
$endgroup$
– Sunnyskyguy EE75
Apr 4 at 15:02
$begingroup$
These are not power diodes, only small signal, for low current<5mA use. Do you understand Max?
$endgroup$
– Sunnyskyguy EE75
Apr 4 at 15:02
$begingroup$
@SunnyskyguyEE75 I am working on project related to rectenna. According to many researches I looked through, mostly used diodes were HSMS 28xx family. I am stuck on choosing right diodes. Most diodes of HSMS 28xx family are obsolete. That is why I am looking for trade-off. What I found HSMS 2804 was not out of stock.
$endgroup$
– Max Rock
Apr 4 at 15:35
$begingroup$
@SunnyskyguyEE75 I am working on project related to rectenna. According to many researches I looked through, mostly used diodes were HSMS 28xx family. I am stuck on choosing right diodes. Most diodes of HSMS 28xx family are obsolete. That is why I am looking for trade-off. What I found HSMS 2804 was not out of stock.
$endgroup$
– Max Rock
Apr 4 at 15:35
$begingroup$
@SunnyskyguyEE75 a bit different question, more broadly about my problem I posted here(electronics.stackexchange.com/questions/428821/…)
$endgroup$
– Max Rock
Apr 4 at 15:42
$begingroup$
@SunnyskyguyEE75 a bit different question, more broadly about my problem I posted here(electronics.stackexchange.com/questions/428821/…)
$endgroup$
– Max Rock
Apr 4 at 15:42
$begingroup$
hmm that schematic does not reflect your readings. "circuit gave output 14.5V and 45uA on 200 Ohms load." does not make sense. 45uA on 200 Ohms is 9mV
$endgroup$
– Sunnyskyguy EE75
Apr 4 at 15:48
$begingroup$
hmm that schematic does not reflect your readings. "circuit gave output 14.5V and 45uA on 200 Ohms load." does not make sense. 45uA on 200 Ohms is 9mV
$endgroup$
– Sunnyskyguy EE75
Apr 4 at 15:48
|
show 3 more comments
$begingroup$
As you can see in the table, every package has identical single diode specifications.
But your question is "If I want to use 2804 for rectifying, will it act as 2800?"
The temperature rise will be double sharing one package for two diodes.
Answer: Yes for peak currents <=1mA
No , if near Ip=10mA do not use if temp rise exceeds 70'C above worst case board temp.
Although they have identical characteristics, now it means the dual diode package must share the same thermal resistance of;
500°C/W for SOT-23 and 150°C/W for SOT-323
You must work out the temp rise, but it means your DC load must be << 1mA since the diode peak current into a storage cap with 10% ripple will be 10mA
$endgroup$
add a comment |
$begingroup$
As you can see in the table, every package has identical single diode specifications.
But your question is "If I want to use 2804 for rectifying, will it act as 2800?"
The temperature rise will be double sharing one package for two diodes.
Answer: Yes for peak currents <=1mA
No , if near Ip=10mA do not use if temp rise exceeds 70'C above worst case board temp.
Although they have identical characteristics, now it means the dual diode package must share the same thermal resistance of;
500°C/W for SOT-23 and 150°C/W for SOT-323
You must work out the temp rise, but it means your DC load must be << 1mA since the diode peak current into a storage cap with 10% ripple will be 10mA
$endgroup$
add a comment |
$begingroup$
As you can see in the table, every package has identical single diode specifications.
But your question is "If I want to use 2804 for rectifying, will it act as 2800?"
The temperature rise will be double sharing one package for two diodes.
Answer: Yes for peak currents <=1mA
No , if near Ip=10mA do not use if temp rise exceeds 70'C above worst case board temp.
Although they have identical characteristics, now it means the dual diode package must share the same thermal resistance of;
500°C/W for SOT-23 and 150°C/W for SOT-323
You must work out the temp rise, but it means your DC load must be << 1mA since the diode peak current into a storage cap with 10% ripple will be 10mA
$endgroup$
As you can see in the table, every package has identical single diode specifications.
But your question is "If I want to use 2804 for rectifying, will it act as 2800?"
The temperature rise will be double sharing one package for two diodes.
Answer: Yes for peak currents <=1mA
No , if near Ip=10mA do not use if temp rise exceeds 70'C above worst case board temp.
Although they have identical characteristics, now it means the dual diode package must share the same thermal resistance of;
500°C/W for SOT-23 and 150°C/W for SOT-323
You must work out the temp rise, but it means your DC load must be << 1mA since the diode peak current into a storage cap with 10% ripple will be 10mA
edited Apr 4 at 15:00
answered Apr 4 at 14:54
Sunnyskyguy EE75Sunnyskyguy EE75
71.2k227103
71.2k227103
add a comment |
add a comment |
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