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| Part Number | PT4503A |
| Description | DC DC CONVERTER 12V 20W |
| Manufacturer | Texas Instruments |
| Series | Excalibur™ PT4500 (20W) |
| Part Status | Obsolete |
| Type | Isolated Module |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 18V |
| Voltage - Input (Max) | 40V |
| Voltage - Output 1 | 12V |
| Voltage - Output 2 | - |
| Voltage - Output 3 | - |
| Voltage - Output 4 | - |
| Current - Output (Max) | 1.6A |
| Power (Watts) | 20W |
| Voltage - Isolation | 1.5kV |
| Applications | ITE (Commercial) |
| Features | UVLO |
| Operating Temperature | -40°C ~ 85°C |
| Efficiency | 83% |
| Mounting Type | Through Hole, Right Angle |
| Package / Case | 12-SIP Module |
| Size / Dimension | - |
| Supplier Device Package | - |
| Control Features | - |