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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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ON Semiconductor
Hi, I'm hoping that someone out there will have some info on an
ON Semiconductor 5105FA |
#2
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ON Semiconductor
On Wed, 7 Oct 2020 16:53:26 +0100, Roger wrote:
Hi, I'm hoping that someone out there will have some info on an ON Semiconductor 5105FA Not exactly what you were asking: https://www.onsemi.com/products/discretes-drivers/mosfets/ntr5105p If you inscribe "5105" in the search box, you'll get a list of other possible matches. It would be very helpful if you would describe the package, application, and provide a photo. I don't think you're reading the part number or manufacturer correctly. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#3
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ON Semiconductor
Basic information:
What is it? What is it from? What does it do? What does it look like? Example: The ON datasheet number for a 2N3772 NPN power transistor is: MJ15022. Their part number is: MJ15024G. Peter Wieck Melrose Park, PA |
#4
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ON Semiconductor
On Wed, 07 Oct 2020 10:51:22 -0700
Jeff Liebermann wrote: On Wed, 7 Oct 2020 16:53:26 +0100, Roger wrote: Hi, I'm hoping that someone out there will have some info on an ON Semiconductor 5105FA Not exactly what you were asking: https://www.onsemi.com/products/discretes-drivers/mosfets/ntr5105p If you inscribe "5105" in the search box, you'll get a list of other possible matches. It would be very helpful if you would describe the package, application, and provide a photo. I don't think you're reading the part number or manufacturer correctly. It's on a dashboard PCB from a Lincon Navigator, it seems to be a one of a identical pair of switchers driving a transformer primary. Here's an identical one to mine: http://www.tehnari.ru/f39/t256954/ Thanks. |
#5
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ON Semiconductor
On Wed, 7 Oct 2020 11:05:08 -0700 (PDT)
" wrote: Basic information: What is it? What is it from? What does it do? What does it look like? Example: The ON datasheet number for a 2N3772 NPN power transistor is: MJ15022. Their part number is: MJ15024G. Peter Wieck Melrose Park, PA Yes, sorry. See other post. Thanks. |
#6
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ON Semiconductor
On Wed, 7 Oct 2020 19:49:14 +0100, Roger wrote:
On Wed, 07 Oct 2020 10:51:22 -0700 Jeff Liebermann wrote: On Wed, 7 Oct 2020 16:53:26 +0100, Roger wrote: Hi, I'm hoping that someone out there will have some info on an ON Semiconductor 5105FA Not exactly what you were asking: https://www.onsemi.com/products/discretes-drivers/mosfets/ntr5105p If you inscribe "5105" in the search box, you'll get a list of other possible matches. It would be very helpful if you would describe the package, application, and provide a photo. I don't think you're reading the part number or manufacturer correctly. It's on a dashboard PCB from a Lincon Navigator, it seems to be a one of a identical pair of switchers driving a transformer primary. Here's an identical one to mine: http://www.tehnari.ru/f39/t256954/ Thanks. Board markings indicate a bipolar transistor. I'm guessing ~TIP31B, based on the other body marking. CQ may indicate an automotive grade. RL |
#7
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ON Semiconductor
On Wed, 7 Oct 2020 19:49:14 +0100, Roger wrote:
On Wed, 07 Oct 2020 10:51:22 -0700 Jeff Liebermann wrote: On Wed, 7 Oct 2020 16:53:26 +0100, Roger wrote: Hi, I'm hoping that someone out there will have some info on an ON Semiconductor 5105FA Not exactly what you were asking: https://www.onsemi.com/products/discretes-drivers/mosfets/ntr5105p If you inscribe "5105" in the search box, you'll get a list of other possible matches. It would be very helpful if you would describe the package, application, and provide a photo. I don't think you're reading the part number or manufacturer correctly. It's on a dashboard PCB from a Lincon Navigator, it seems to be a one of a identical pair of switchers driving a transformer primary. Here's an identical one to mine: http://www.tehnari.ru/f39/t256954/ Well, that certainly is a readable ON Semi part number. That package is a TO-220: https://www.onsemi.com/pub/Collateral/221A-09.PDF with a "style 1" pinout where the silk screened ECB suggest a bipolar power transistor. The problem is that searching the ON Semi web pile yields a clock generator and a tiny SOT-23 MOSFET, neither of which is available in a TO-220 style case. There is such a thing as a 2N5105, but it's an ancient low power JFET in a small TO-72 can. Dead end, I guess. Back in the stone age, I would have taken the possibly matching device, put it on a transistor curve tracer, and tried to deduce the device characteristics. There daze, there are so many different transistors, that such an exercise would probably be futile. I suggest you try to find a repair shop that refurbishes automotive electronics. https://www.google.com/search?q=lincoln+navigator+refurbished+dashboard+m odules or buy something from your neighborhood chop shop (used auto parts dealer). -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#8
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ON Semiconductor
On Thu, 08 Oct 2020 20:33:02 -0700
Jeff Liebermann wrote: On Wed, 7 Oct 2020 19:49:14 +0100, Roger wrote: On Wed, 07 Oct 2020 10:51:22 -0700 Jeff Liebermann wrote: On Wed, 7 Oct 2020 16:53:26 +0100, Roger wrote: Hi, I'm hoping that someone out there will have some info on an ON Semiconductor 5105FA Not exactly what you were asking: https://www.onsemi.com/products/discretes-drivers/mosfets/ntr5105p If you inscribe "5105" in the search box, you'll get a list of other possible matches. It would be very helpful if you would describe the package, application, and provide a photo. I don't think you're reading the part number or manufacturer correctly. It's on a dashboard PCB from a Lincon Navigator, it seems to be a one of a identical pair of switchers driving a transformer primary. Here's an identical one to mine: http://www.tehnari.ru/f39/t256954/ Well, that certainly is a readable ON Semi part number. That package is a TO-220: https://www.onsemi.com/pub/Collateral/221A-09.PDF with a "style 1" pinout where the silk screened ECB suggest a bipolar power transistor. The problem is that searching the ON Semi web pile yields a clock generator and a tiny SOT-23 MOSFET, neither of which is available in a TO-220 style case. There is such a thing as a 2N5105, but it's an ancient low power JFET in a small TO-72 can. Dead end, I guess. Back in the stone age, I would have taken the possibly matching device, put it on a transistor curve tracer, and tried to deduce the device characteristics. There daze, there are so many different transistors, that such an exercise would probably be futile. I suggest you try to find a repair shop that refurbishes automotive electronics. https://www.google.com/search?q=lincoln+navigator+refurbished+dashboard+m odules or buy something from your neighborhood chop shop (used auto parts dealer). I've been down that road myself before I asked here. I de-soldered the transistor that appeared undamaged to see if it would help me guess at a replacement and the device turned out to be an np diode - the base emmiter junction is no longer with us. Thanks for your efforts. |
#9
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ON Semiconductor
On Thu, 08 Oct 2020 08:23:08 -0400
legg wrote: On Wed, 7 Oct 2020 19:49:14 +0100, Roger wrote: On Wed, 07 Oct 2020 10:51:22 -0700 Jeff Liebermann wrote: On Wed, 7 Oct 2020 16:53:26 +0100, Roger wrote: Hi, I'm hoping that someone out there will have some info on an ON Semiconductor 5105FA Not exactly what you were asking: https://www.onsemi.com/products/discretes-drivers/mosfets/ntr5105p If you inscribe "5105" in the search box, you'll get a list of other possible matches. It would be very helpful if you would describe the package, application, and provide a photo. I don't think you're reading the part number or manufacturer correctly. It's on a dashboard PCB from a Lincon Navigator, it seems to be a one of a identical pair of switchers driving a transformer primary. Here's an identical one to mine: http://www.tehnari.ru/f39/t256954/ Thanks. Board markings indicate a bipolar transistor. I'm guessing ~TIP31B, based on the other body marking. I've hit a blank everywhere else, so a suck-it-and-see lucky guess substitution attempt is my next move. I've got some TIP31Bs - I'll let you know if your guess wins ;-) Cheers. |
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