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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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Difference BD311/312 - BD311N/312N?
Dear Experts
For repairing an audio power amp I need a pair of BD311N/BD312N. Unfortunately I've found just technical data for BD311/312. Can anybody tell me the difference between BD311/312 and BD311N/312N? TIA Reinhard |
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#2
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Difference BD311/312 - BD311N/312N?
Reinhard Zwirner wrote in message
... Dear Experts For repairing an audio power amp I need a pair of BD311N/BD312N. Unfortunately I've found just technical data for BD311/312. Can anybody tell me the difference between BD311/312 and BD311N/312N? TIA Reinhard Generally , but presumably manufacturer dependent Transistor number with an N suffix = lead free / RoHS pins/leads. ie full tin coating, so scrape back for tin-pest free, long term reliability, if soldering into old kit. -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
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#3
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Difference BD311/312 - BD311N/312N?
N_Cook schrieb:
Reinhard Zwirner wrote in message ... Dear Experts For repairing an audio power amp I need a pair of BD311N/BD312N. Unfortunately I've found just technical data for BD311/312. Can anybody tell me the difference between BD311/312 and BD311N/312N? TIA Reinhard Generally , but presumably manufacturer dependent Transistor number with an N suffix = lead free / RoHS pins/leads. ie full tin coating, so scrape back for tin-pest free, long term reliability, if soldering into old kit. Hello Thank you very much for answering. AFAIK those transistors were produced in the 70s of the last century: ROHS wasn't on topic at that time ... Best regards Reinhard |
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