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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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Diode identification
Hi!
Servicing a SGI Fuel CPU, I found a short circuited diode. The only marking is S4 15. The companion diode, working, has 0.2V of forward voltage, so it could be a fast recovery Schottky switching diode. Could you help with the marking? Thanks! |
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#2
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Diode identification
On 15.04.14 16:20, Apple_Tester wrote:
Hi! Servicing a SGI Fuel CPU, I found a short circuited diode. The only marking is S4 15. The companion diode, working, has 0.2V of forward voltage, so it could be a fast recovery Schottky switching diode. Could you help with the marking? Thanks! Maybe it is a protection zener of 15 volts? (which blew while protecting?) |
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#3
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Diode identification
On 15/04/2014 15:20, Apple_Tester wrote:
Hi! Servicing a SGI Fuel CPU, I found a short circuited diode. The only marking is S4 15. The companion diode, working, has 0.2V of forward voltage, so it could be a fast recovery Schottky switching diode. Could you help with the marking? Thanks! 1S415 ? |
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#4
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Diode identification
1S415 ? No, it's a small black axial diode, half lenght of the standard 1N4001... |
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#5
Posted to sci.electronics.repair
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Diode identification
On 15/04/2014 15:20, Apple_Tester wrote:
Hi! Servicing a SGI Fuel CPU, I found a short circuited diode. The only marking is S4 15. The companion diode, working, has 0.2V of forward voltage, so it could be a fast recovery Schottky switching diode. Could you help with the marking? Thanks! Sure its S and not 5 ? "included within" on http://www.alldatasheet.com/view.jsp?Searchword=s415 shows a lot of possibles |
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Linear Mode
