WS4639 is Configurable Reset Timer manufactured by WillSEMI.
| Part Number | Description |
|---|---|
| WS4601 | Power Distribution Switch |
| WS4603 | Power Distribution Switch |
| WS4611 | Power Distribution Switch |
| WS4620H | Adjusted Current Limit Over-Voltage Protection Load Switch |
| WS4665 | Load Switch |