TOP253 系列
| 製造商零件# | 描述 | 製造商 | 有存貨 | 手術 |
| TOP253PN | IC OFFLINE SWITCH FLYBACK 8DIP | Power Integrations | 3430 |
|
| TOP253GN | IC OFFLINE SWITCH FLYBACK 8SMD | Power Integrations | 2330 |
|
| TOP253MN | IC OFFLINE SW FLYBACK 10CSDIP | Power Integrations | 4225 |
|
| TOP253PNAU | IC OFFLINE SWITCH FLYBACK 8DIP | Power Integrations | 9664 |
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