Mixing
What is this unknown part?
8
$begingroup$
I'm tracing a circuit. What is this part?
This is back of it.
identification
edited Jan 15 at 4:00
SamGibson
11.1k41637
asked Jan 15 at 3:52
JtlJtl
13219
$endgroup$
add a comment |
8
$begingroup$
I'm tracing a circuit. What is this part?
This is back of it.
identification
edited Jan 15 at 4:00
SamGibson
11.1k41637
asked Jan 15 at 3:52
JtlJtl
13219
$endgroup$
add a comment |
8
8
8
$begingroup$
I'm tracing a circuit. What is this part?
This is back of it.
identification
edited Jan 15 at 4:00
SamGibson
11.1k41637
asked Jan 15 at 3:52
JtlJtl
13219
$endgroup$
I'm tracing a circuit. What is this part?
This is back of it.
identification
identification
edited Jan 15 at 4:00
SamGibson
11.1k41637
asked Jan 15 at 3:52
JtlJtl
13219
edited Jan 15 at 4:00
SamGibson
11.1k41637
asked Jan 15 at 3:52
JtlJtl
13219
edited Jan 15 at 4:00
SamGibson
11.1k41637
edited Jan 15 at 4:00
SamGibson
11.1k41637
edited Jan 15 at 4:00
SamGibson
11.1k41637
11.1k41637
asked Jan 15 at 3:52
JtlJtl
13219
asked Jan 15 at 3:52
JtlJtl
13219
asked Jan 15 at 3:52
JtlJtl
13219
13219
add a comment |
add a comment |
3 Answers
3
active
oldest
votes
24
$begingroup$
It's a 1A 125°C (nominal) thermal fuse, rated to fuse at 121°C +/-2°C
Operating temperature is up to 100°C.
Made by Xiamen SET Electronics Co., Ltd in Xiamen China.
It is not resettable. Needs to be replaced.
edited Jan 15 at 6:41
Ale..chenski
27.5k11865
answered Jan 15 at 4:47
Spehro PefhanySpehro Pefhany
208k5159420
$endgroup$
$begingroup$
Why can't I measure conduction in the two legs?
$endgroup$
– Jtl
Jan 15 at 4:58
5
$begingroup$
Maybe it's already burned out. Can't really tell from that photo- it should measure very low resistance. Or maybe you're not making good contact because the board is coated or whatever.
$endgroup$
– Spehro Pefhany
Jan 15 at 5:00
1
$begingroup$
That would explain what looks like a bubble in there.
$endgroup$
– Mazura
Jan 15 at 14:14
16
$begingroup$
Before replacing it, consider looking for the reason why a device that is supposed never to go over 120°C, but needs costly measures to be really, really kept from going over 120°C, went over 120°C
$endgroup$
– rackandboneman
Jan 15 at 15:04
1
$begingroup$
Follow rackandboneman's advice "Before replacing it, consider looking for the reason why a device that is supposed never to go over 120°C, but needs costly measures to be really, really kept from going over 120°C, went over 120°C" Judging by that solder job it appears to have been replaced before.
$endgroup$
– cardstroker
Jan 15 at 16:37
|
show 1 more comment
8
$begingroup$
It is called Thermal cut-off (TCO) / Thermal fuse.
in the "SET F3" 3 indicates that it is rated to cut off at 121+/-2 ℃, 125 ℃(nominal temperature) rated for 100 ℃. where as F indicates rated for 1A load current.
answered Jan 15 at 6:16
Satish SingupuramSatish Singupuram
1,713317
$endgroup$
$begingroup$
If more than 1A passes through it. It can open too or only from temperature?
$endgroup$
– Jtl
Jan 15 at 6:21
$begingroup$
In the original post and picture, the legs are no longer conducting and I checked inside. It has opened already. So this can occur without any obvious ambient rise in temperature. Isn't it.
$endgroup$
– Jtl
Jan 15 at 6:31
$begingroup$
Its already burned out. these are single time operation devices. yeh may be.
$endgroup$
– Satish Singupuram
Jan 15 at 6:36
add a comment |
5
$begingroup$
F1 indicates a fuse on the silk screen.
eg https://www.digikey.com/product-detail/en/littelfuse-inc/80812000440/WK6289-ND/2206338
answered Jan 15 at 3:56
Sunnyskyguy EE75Sunnyskyguy EE75
66.5k22397
$endgroup$
3
$begingroup$
Seems to be a thermofuse to me. No current noted, but 125°C.
$endgroup$
– Janka
Jan 15 at 4:28
add a comment |
Your Answer
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
24
$begingroup$
It's a 1A 125°C (nominal) thermal fuse, rated to fuse at 121°C +/-2°C
Operating temperature is up to 100°C.
Made by Xiamen SET Electronics Co., Ltd in Xiamen China.
It is not resettable. Needs to be replaced.
edited Jan 15 at 6:41
Ale..chenski
27.5k11865
answered Jan 15 at 4:47
Spehro PefhanySpehro Pefhany
208k5159420
$endgroup$
$begingroup$
Why can't I measure conduction in the two legs?
$endgroup$
– Jtl
Jan 15 at 4:58
5
$begingroup$
Maybe it's already burned out. Can't really tell from that photo- it should measure very low resistance. Or maybe you're not making good contact because the board is coated or whatever.
$endgroup$
– Spehro Pefhany
Jan 15 at 5:00
1
$begingroup$
That would explain what looks like a bubble in there.
$endgroup$
– Mazura
Jan 15 at 14:14
16
$begingroup$
Before replacing it, consider looking for the reason why a device that is supposed never to go over 120°C, but needs costly measures to be really, really kept from going over 120°C, went over 120°C
$endgroup$
– rackandboneman
Jan 15 at 15:04
1
$begingroup$
Follow rackandboneman's advice "Before replacing it, consider looking for the reason why a device that is supposed never to go over 120°C, but needs costly measures to be really, really kept from going over 120°C, went over 120°C" Judging by that solder job it appears to have been replaced before.
$endgroup$
– cardstroker
Jan 15 at 16:37
|
show 1 more comment
24
$begingroup$
It's a 1A 125°C (nominal) thermal fuse, rated to fuse at 121°C +/-2°C
Operating temperature is up to 100°C.
Made by Xiamen SET Electronics Co., Ltd in Xiamen China.
It is not resettable. Needs to be replaced.
edited Jan 15 at 6:41
Ale..chenski
27.5k11865
answered Jan 15 at 4:47
Spehro PefhanySpehro Pefhany
208k5159420
$endgroup$
$begingroup$
Why can't I measure conduction in the two legs?
$endgroup$
– Jtl
Jan 15 at 4:58
5
$begingroup$
Maybe it's already burned out. Can't really tell from that photo- it should measure very low resistance. Or maybe you're not making good contact because the board is coated or whatever.
$endgroup$
– Spehro Pefhany
Jan 15 at 5:00
1
$begingroup$
That would explain what looks like a bubble in there.
$endgroup$
– Mazura
Jan 15 at 14:14
16
$begingroup$
Before replacing it, consider looking for the reason why a device that is supposed never to go over 120°C, but needs costly measures to be really, really kept from going over 120°C, went over 120°C
$endgroup$
– rackandboneman
Jan 15 at 15:04
1
$begingroup$
Follow rackandboneman's advice "Before replacing it, consider looking for the reason why a device that is supposed never to go over 120°C, but needs costly measures to be really, really kept from going over 120°C, went over 120°C" Judging by that solder job it appears to have been replaced before.
$endgroup$
– cardstroker
Jan 15 at 16:37
|
show 1 more comment
24
24
24
$begingroup$
It's a 1A 125°C (nominal) thermal fuse, rated to fuse at 121°C +/-2°C
Operating temperature is up to 100°C.
Made by Xiamen SET Electronics Co., Ltd in Xiamen China.
It is not resettable. Needs to be replaced.
edited Jan 15 at 6:41
Ale..chenski
27.5k11865
answered Jan 15 at 4:47
Spehro PefhanySpehro Pefhany
208k5159420
$endgroup$
It's a 1A 125°C (nominal) thermal fuse, rated to fuse at 121°C +/-2°C
Operating temperature is up to 100°C.
Made by Xiamen SET Electronics Co., Ltd in Xiamen China.
It is not resettable. Needs to be replaced.
edited Jan 15 at 6:41
Ale..chenski
27.5k11865
answered Jan 15 at 4:47
Spehro PefhanySpehro Pefhany
208k5159420
edited Jan 15 at 6:41
Ale..chenski
27.5k11865
edited Jan 15 at 6:41
Ale..chenski
27.5k11865
edited Jan 15 at 6:41
Ale..chenski
27.5k11865
27.5k11865
answered Jan 15 at 4:47
Spehro PefhanySpehro Pefhany
208k5159420
answered Jan 15 at 4:47
Spehro PefhanySpehro Pefhany
208k5159420
answered Jan 15 at 4:47
Spehro PefhanySpehro Pefhany
208k5159420
208k5159420
$begingroup$
Why can't I measure conduction in the two legs?
$endgroup$
– Jtl
Jan 15 at 4:58
5
$begingroup$
Maybe it's already burned out. Can't really tell from that photo- it should measure very low resistance. Or maybe you're not making good contact because the board is coated or whatever.
$endgroup$
– Spehro Pefhany
Jan 15 at 5:00
1
$begingroup$
That would explain what looks like a bubble in there.
$endgroup$
– Mazura
Jan 15 at 14:14
16
$begingroup$
Before replacing it, consider looking for the reason why a device that is supposed never to go over 120°C, but needs costly measures to be really, really kept from going over 120°C, went over 120°C
$endgroup$
– rackandboneman
Jan 15 at 15:04
1
$begingroup$
Follow rackandboneman's advice "Before replacing it, consider looking for the reason why a device that is supposed never to go over 120°C, but needs costly measures to be really, really kept from going over 120°C, went over 120°C" Judging by that solder job it appears to have been replaced before.
$endgroup$
– cardstroker
Jan 15 at 16:37
|
show 1 more comment
$begingroup$
Why can't I measure conduction in the two legs?
$endgroup$
– Jtl
Jan 15 at 4:58
5
$begingroup$
Maybe it's already burned out. Can't really tell from that photo- it should measure very low resistance. Or maybe you're not making good contact because the board is coated or whatever.
$endgroup$
– Spehro Pefhany
Jan 15 at 5:00
1
$begingroup$
That would explain what looks like a bubble in there.
$endgroup$
– Mazura
Jan 15 at 14:14
16
$begingroup$
Before replacing it, consider looking for the reason why a device that is supposed never to go over 120°C, but needs costly measures to be really, really kept from going over 120°C, went over 120°C
$endgroup$
– rackandboneman
Jan 15 at 15:04
1
$begingroup$
Follow rackandboneman's advice "Before replacing it, consider looking for the reason why a device that is supposed never to go over 120°C, but needs costly measures to be really, really kept from going over 120°C, went over 120°C" Judging by that solder job it appears to have been replaced before.
$endgroup$
– cardstroker
Jan 15 at 16:37
$begingroup$
Why can't I measure conduction in the two legs?
$endgroup$
– Jtl
Jan 15 at 4:58
$begingroup$
Why can't I measure conduction in the two legs?
$endgroup$
– Jtl
Jan 15 at 4:58
5
5
$begingroup$
Maybe it's already burned out. Can't really tell from that photo- it should measure very low resistance. Or maybe you're not making good contact because the board is coated or whatever.
$endgroup$
– Spehro Pefhany
Jan 15 at 5:00
$begingroup$
Maybe it's already burned out. Can't really tell from that photo- it should measure very low resistance. Or maybe you're not making good contact because the board is coated or whatever.
$endgroup$
– Spehro Pefhany
Jan 15 at 5:00
1
1
$begingroup$
That would explain what looks like a bubble in there.
$endgroup$
– Mazura
Jan 15 at 14:14
$begingroup$
That would explain what looks like a bubble in there.
$endgroup$
– Mazura
Jan 15 at 14:14
16
16
$begingroup$
Before replacing it, consider looking for the reason why a device that is supposed never to go over 120°C, but needs costly measures to be really, really kept from going over 120°C, went over 120°C
$endgroup$
– rackandboneman
Jan 15 at 15:04
$begingroup$
Before replacing it, consider looking for the reason why a device that is supposed never to go over 120°C, but needs costly measures to be really, really kept from going over 120°C, went over 120°C
$endgroup$
– rackandboneman
Jan 15 at 15:04
1
1
$begingroup$
Follow rackandboneman's advice "Before replacing it, consider looking for the reason why a device that is supposed never to go over 120°C, but needs costly measures to be really, really kept from going over 120°C, went over 120°C" Judging by that solder job it appears to have been replaced before.
$endgroup$
– cardstroker
Jan 15 at 16:37
$begingroup$
Follow rackandboneman's advice "Before replacing it, consider looking for the reason why a device that is supposed never to go over 120°C, but needs costly measures to be really, really kept from going over 120°C, went over 120°C" Judging by that solder job it appears to have been replaced before.
$endgroup$
– cardstroker
Jan 15 at 16:37
|
show 1 more comment
8
$begingroup$
It is called Thermal cut-off (TCO) / Thermal fuse.
in the "SET F3" 3 indicates that it is rated to cut off at 121+/-2 ℃, 125 ℃(nominal temperature) rated for 100 ℃. where as F indicates rated for 1A load current.
answered Jan 15 at 6:16
Satish SingupuramSatish Singupuram
1,713317
$endgroup$
$begingroup$
If more than 1A passes through it. It can open too or only from temperature?
$endgroup$
– Jtl
Jan 15 at 6:21
$begingroup$
In the original post and picture, the legs are no longer conducting and I checked inside. It has opened already. So this can occur without any obvious ambient rise in temperature. Isn't it.
$endgroup$
– Jtl
Jan 15 at 6:31
$begingroup$
Its already burned out. these are single time operation devices. yeh may be.
$endgroup$
– Satish Singupuram
Jan 15 at 6:36
add a comment |
8
$begingroup$
It is called Thermal cut-off (TCO) / Thermal fuse.
in the "SET F3" 3 indicates that it is rated to cut off at 121+/-2 ℃, 125 ℃(nominal temperature) rated for 100 ℃. where as F indicates rated for 1A load current.
answered Jan 15 at 6:16
Satish SingupuramSatish Singupuram
1,713317
$endgroup$
$begingroup$
If more than 1A passes through it. It can open too or only from temperature?
$endgroup$
– Jtl
Jan 15 at 6:21
$begingroup$
In the original post and picture, the legs are no longer conducting and I checked inside. It has opened already. So this can occur without any obvious ambient rise in temperature. Isn't it.
$endgroup$
– Jtl
Jan 15 at 6:31
$begingroup$
Its already burned out. these are single time operation devices. yeh may be.
$endgroup$
– Satish Singupuram
Jan 15 at 6:36
add a comment |
8
8
8
$begingroup$
It is called Thermal cut-off (TCO) / Thermal fuse.
in the "SET F3" 3 indicates that it is rated to cut off at 121+/-2 ℃, 125 ℃(nominal temperature) rated for 100 ℃. where as F indicates rated for 1A load current.
answered Jan 15 at 6:16
Satish SingupuramSatish Singupuram
1,713317
$endgroup$
It is called Thermal cut-off (TCO) / Thermal fuse.
in the "SET F3" 3 indicates that it is rated to cut off at 121+/-2 ℃, 125 ℃(nominal temperature) rated for 100 ℃. where as F indicates rated for 1A load current.
answered Jan 15 at 6:16
Satish SingupuramSatish Singupuram
1,713317
answered Jan 15 at 6:16
Satish SingupuramSatish Singupuram
1,713317
answered Jan 15 at 6:16
Satish SingupuramSatish Singupuram
1,713317
answered Jan 15 at 6:16
Satish SingupuramSatish Singupuram
1,713317
1,713317
$begingroup$
If more than 1A passes through it. It can open too or only from temperature?
$endgroup$
– Jtl
Jan 15 at 6:21
$begingroup$
In the original post and picture, the legs are no longer conducting and I checked inside. It has opened already. So this can occur without any obvious ambient rise in temperature. Isn't it.
$endgroup$
– Jtl
Jan 15 at 6:31
$begingroup$
Its already burned out. these are single time operation devices. yeh may be.
$endgroup$
– Satish Singupuram
Jan 15 at 6:36
add a comment |
$begingroup$
If more than 1A passes through it. It can open too or only from temperature?
$endgroup$
– Jtl
Jan 15 at 6:21
$begingroup$
In the original post and picture, the legs are no longer conducting and I checked inside. It has opened already. So this can occur without any obvious ambient rise in temperature. Isn't it.
$endgroup$
– Jtl
Jan 15 at 6:31
$begingroup$
Its already burned out. these are single time operation devices. yeh may be.
$endgroup$
– Satish Singupuram
Jan 15 at 6:36
$begingroup$
If more than 1A passes through it. It can open too or only from temperature?
$endgroup$
– Jtl
Jan 15 at 6:21
$begingroup$
If more than 1A passes through it. It can open too or only from temperature?
$endgroup$
– Jtl
Jan 15 at 6:21
$begingroup$
In the original post and picture, the legs are no longer conducting and I checked inside. It has opened already. So this can occur without any obvious ambient rise in temperature. Isn't it.
$endgroup$
– Jtl
Jan 15 at 6:31
$begingroup$
In the original post and picture, the legs are no longer conducting and I checked inside. It has opened already. So this can occur without any obvious ambient rise in temperature. Isn't it.
$endgroup$
– Jtl
Jan 15 at 6:31
$begingroup$
Its already burned out. these are single time operation devices. yeh may be.
$endgroup$
– Satish Singupuram
Jan 15 at 6:36
$begingroup$
Its already burned out. these are single time operation devices. yeh may be.
$endgroup$
– Satish Singupuram
Jan 15 at 6:36
add a comment |
5
$begingroup$
F1 indicates a fuse on the silk screen.
eg https://www.digikey.com/product-detail/en/littelfuse-inc/80812000440/WK6289-ND/2206338
answered Jan 15 at 3:56
Sunnyskyguy EE75Sunnyskyguy EE75
66.5k22397
$endgroup$
3
$begingroup$
Seems to be a thermofuse to me. No current noted, but 125°C.
$endgroup$
– Janka
Jan 15 at 4:28
add a comment |
5
$begingroup$
F1 indicates a fuse on the silk screen.
eg https://www.digikey.com/product-detail/en/littelfuse-inc/80812000440/WK6289-ND/2206338
answered Jan 15 at 3:56
Sunnyskyguy EE75Sunnyskyguy EE75
66.5k22397
$endgroup$
3
$begingroup$
Seems to be a thermofuse to me. No current noted, but 125°C.
$endgroup$
– Janka
Jan 15 at 4:28
add a comment |
5
5
5
$begingroup$
F1 indicates a fuse on the silk screen.
eg https://www.digikey.com/product-detail/en/littelfuse-inc/80812000440/WK6289-ND/2206338
answered Jan 15 at 3:56
Sunnyskyguy EE75Sunnyskyguy EE75
66.5k22397
$endgroup$
F1 indicates a fuse on the silk screen.
eg https://www.digikey.com/product-detail/en/littelfuse-inc/80812000440/WK6289-ND/2206338
answered Jan 15 at 3:56
Sunnyskyguy EE75Sunnyskyguy EE75
66.5k22397
answered Jan 15 at 3:56
Sunnyskyguy EE75Sunnyskyguy EE75
66.5k22397
answered Jan 15 at 3:56
Sunnyskyguy EE75Sunnyskyguy EE75
66.5k22397
answered Jan 15 at 3:56
Sunnyskyguy EE75Sunnyskyguy EE75
66.5k22397
66.5k22397
3
$begingroup$
Seems to be a thermofuse to me. No current noted, but 125°C.
$endgroup$
– Janka
Jan 15 at 4:28
add a comment |
3
$begingroup$
Seems to be a thermofuse to me. No current noted, but 125°C.
$endgroup$
– Janka
Jan 15 at 4:28
3
3
$begingroup$
Seems to be a thermofuse to me. No current noted, but 125°C.
$endgroup$
– Janka
Jan 15 at 4:28
$begingroup$
Seems to be a thermofuse to me. No current noted, but 125°C.
$endgroup$
– Janka
Jan 15 at 4:28
add a comment |
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