Diode datasheet reading
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$begingroup$
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
asked 11 hours ago
Max RockMax Rock
497
$endgroup$
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
asked 11 hours ago
Max RockMax Rock
497
$endgroup$
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
asked 11 hours ago
Max RockMax Rock
497
$endgroup$
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
asked 11 hours ago
Max RockMax Rock
497
asked 11 hours ago
Max RockMax Rock
497
edited 11 hours ago
Max Rock
asked 11 hours ago
Max RockMax Rock
497
asked 11 hours ago
Max RockMax Rock
497
asked 11 hours ago
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.
answered 11 hours ago
Neil_UKNeil_UK
78.7k285182
$endgroup$
$begingroup$
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
10 hours ago
$begingroup$
These are not power diodes, only small signal, for low current<5mA use. Do you understand Max?
$endgroup$
– Sunnyskyguy EE75
10 hours ago
$begingroup$
@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
9 hours ago
$begingroup$
@SunnyskyguyEE75 a bit different question, more broadly about my problem I posted here(electronics.stackexchange.com/questions/428821/…)
$endgroup$
– Max Rock
9 hours ago
$begingroup$
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
9 hours ago
|
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
answered 10 hours ago
Sunnyskyguy EE75Sunnyskyguy EE75
70.4k225102
$endgroup$
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.
answered 11 hours ago
Neil_UKNeil_UK
78.7k285182
$endgroup$
$begingroup$
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
10 hours ago
$begingroup$
These are not power diodes, only small signal, for low current<5mA use. Do you understand Max?
$endgroup$
– Sunnyskyguy EE75
10 hours ago
$begingroup$
@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
9 hours ago
$begingroup$
@SunnyskyguyEE75 a bit different question, more broadly about my problem I posted here(electronics.stackexchange.com/questions/428821/…)
$endgroup$
– Max Rock
9 hours ago
$begingroup$
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
9 hours ago
|
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.
answered 11 hours ago
Neil_UKNeil_UK
78.7k285182
$endgroup$
$begingroup$
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
10 hours ago
$begingroup$
These are not power diodes, only small signal, for low current<5mA use. Do you understand Max?
$endgroup$
– Sunnyskyguy EE75
10 hours ago
$begingroup$
@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
9 hours ago
$begingroup$
@SunnyskyguyEE75 a bit different question, more broadly about my problem I posted here(electronics.stackexchange.com/questions/428821/…)
$endgroup$
– Max Rock
9 hours ago
$begingroup$
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
9 hours ago
|
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.
answered 11 hours ago
Neil_UKNeil_UK
78.7k285182
$endgroup$
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 11 hours ago
Neil_UKNeil_UK
78.7k285182
answered 11 hours ago
Neil_UKNeil_UK
78.7k285182
answered 11 hours ago
Neil_UKNeil_UK
78.7k285182
answered 11 hours ago
Neil_UKNeil_UK
78.7k285182
78.7k285182
$begingroup$
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
10 hours ago
$begingroup$
These are not power diodes, only small signal, for low current<5mA use. Do you understand Max?
$endgroup$
– Sunnyskyguy EE75
10 hours ago
$begingroup$
@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
9 hours ago
$begingroup$
@SunnyskyguyEE75 a bit different question, more broadly about my problem I posted here(electronics.stackexchange.com/questions/428821/…)
$endgroup$
– Max Rock
9 hours ago
$begingroup$
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
9 hours ago
|
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
10 hours ago
$begingroup$
These are not power diodes, only small signal, for low current<5mA use. Do you understand Max?
$endgroup$
– Sunnyskyguy EE75
10 hours ago
$begingroup$
@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
9 hours ago
$begingroup$
@SunnyskyguyEE75 a bit different question, more broadly about my problem I posted here(electronics.stackexchange.com/questions/428821/…)
$endgroup$
– Max Rock
9 hours ago
$begingroup$
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
9 hours ago
$begingroup$
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
10 hours ago
$begingroup$
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
10 hours ago
$begingroup$
These are not power diodes, only small signal, for low current<5mA use. Do you understand Max?
$endgroup$
– Sunnyskyguy EE75
10 hours ago
$begingroup$
These are not power diodes, only small signal, for low current<5mA use. Do you understand Max?
$endgroup$
– Sunnyskyguy EE75
10 hours ago
$begingroup$
@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
9 hours ago
$begingroup$
@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
9 hours ago
$begingroup$
@SunnyskyguyEE75 a bit different question, more broadly about my problem I posted here(electronics.stackexchange.com/questions/428821/…)
$endgroup$
– Max Rock
9 hours ago
$begingroup$
@SunnyskyguyEE75 a bit different question, more broadly about my problem I posted here(electronics.stackexchange.com/questions/428821/…)
$endgroup$
– Max Rock
9 hours ago
$begingroup$
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
9 hours ago
$begingroup$
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
9 hours ago
|
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
answered 10 hours ago
Sunnyskyguy EE75Sunnyskyguy EE75
70.4k225102
$endgroup$
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
answered 10 hours ago
Sunnyskyguy EE75Sunnyskyguy EE75
70.4k225102
$endgroup$
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
answered 10 hours ago
Sunnyskyguy EE75Sunnyskyguy EE75
70.4k225102
$endgroup$
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
answered 10 hours ago
Sunnyskyguy EE75Sunnyskyguy EE75
70.4k225102
edited 10 hours ago
answered 10 hours ago
Sunnyskyguy EE75Sunnyskyguy EE75
70.4k225102
answered 10 hours ago
Sunnyskyguy EE75Sunnyskyguy EE75
70.4k225102
answered 10 hours ago
Sunnyskyguy EE75Sunnyskyguy EE75
70.4k225102
70.4k225102
add a comment |
add a comment |
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