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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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GE 387NX198 SCR Datasheet
Google comes up empty.
This is a hockey puck SCR. Based on its performance, it is also unusually fast for a garden variety SCR. The closest I can find is for the C387 series found in a 1977 GE datasheet, which is similar and fast and may be its predecessor, but doesn't go up to anywhere close to the voltage I've been using it at (!!) without problems. Thanks! -- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/ Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/ +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html Important: Anything sent to the email address in the message header above is ignored unless my full name AND either lasers or electronics is included in the subject line. Or, you can contact me via the Feedback Form in the FAQs. |
#2
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GE 387NX198 SCR Datasheet
Samuel M. Goldwasser wrote:
The closest I can find is for the C387 series found in a 1977 GE datasheet, which is similar and fast and may be its predecessor, but doesn't go up to anywhere close to the voltage I've been using it at (!!) without problems. Is this the data sheet you found? http://www.datasheetarchive.com/dl/S...s-00102816.pdf The charts at the top say 120 to 550 A, depending on the frequency, 2 uS typical turn-on, 30 to 40 uS typical turn-off. The "N" in the part number implies that it's an 800 V part. The flange on the top is 2.2" diameter. It also talks about a "new high-frequency rating" for rectangular pulses, but that seems to have more to do with current and pulse shape, than voltage. Some other sources say that the GE designation for the above data sheet was "specification sheet 170.44". Google Books has a few different versions of the GE SCR manual, but they won't show the scans. I found a scan at (slightly munged) www dot introni dot it /pdf/GE%20-%20SCR%20manual%201972 dot pdf , but all it has on the C387 is a similar overview sheet to the two documents above. Matt Roberds |
#4
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GE 387NX198 SCR Datasheet
What is the application ? Part numbers do not matter as much anymore except for ordering. If you can figure out what gate voltage/current triggers it and the voltage, current and speed ratings you can plug all that into a selector guide like on Digikey, or I've heard Mouser has that as ell, and probably a few other places.
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#5
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GE 387NX198 SCR Datasheet
writes:
What is the application ? Part numbers do not matter as much anymore except for ordering. If you can figure out what gate voltage/current triggers it and the voltage, current and speed ratings you can plug all that into a selector guide like on Digikey, or I've heard Mouser has that as ell, and probably a few other places. It's for an existing applications and is running fine at 1,450 V, and few kA pulsed. I'd be happier knowing its ratings actually support that though! ;-) The C387 series doesn't come anywhere close. -- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/ Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/ +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html Important: Anything sent to the email address in the message header above is ignored unless my full name AND either lasers or electronics is included in the subject line. Or, you can contact me via the Feedback Form in the FAQs. |
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