| Product Status | Active | |
| Internal Switch(s) | Yes | |
| Supplier Device Package | SOT-89-3 | |
| Package / Case | TO-243AA | |
| Voltage - Supply (Max) | 400V | |
| REACH Status | REACH Unaffected | |
| Voltage - Output | - | |
| Mfr | Microchip Technology | |
| RoHS Status | ROHS3 Compliant | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Operating Temperature | -40°C ~ 85°C (TA) | |
| Applications | Lighting | |
| Voltage - Supply (Min) | 20V | |
| ECCN | EAR99 | |
| Topology | Step-Down (Buck) | |
| Mounting Type | Surface Mount | |
| Number of Outputs | 1 | |
| Series | - | |
| Type | AC DC Offline Switcher | |
| Frequency | - | |
| Dimming | Triac | |
| HTSUS | 8542.39.0001 | |
| Package | Tape & Reel (TR) | |
| Current - Output / Channel | 20mA | |
| Base Product Number | HV9921 |
