| Type number | Package version | Package name | Size (mm) | Description |
|---|---|---|---|---|
| NCR320U | SOT457 | SC-74; TSOP6 | 2.9 x 1.5 x 1 | |
| NCR320Z | SOT223 | SC-73 | 6.5 x 3.5 x 1.65 | |
| NCR321U | SOT457 | SC-74; TSOP6 | 2.9 x 1.5 x 1 | |
| NCR321Z | SOT223 | SC-73 | 6.5 x 3.5 x 1.65 | |
| NCR401T | SOT23 | SOT23 | 2.9 x 1.3 x 1 | |
| NCR401U | SOT457 | SC-74; TSOP6 | 2.9 x 1.5 x 1 | |
| NCR402T | SOT23 | SOT23 | 2.9 x 1.3 x 1 | |
| NCR402U | SOT457 | SC-74; TSOP6 | 2.9 x 1.5 x 1 | |
| NCR405U | SOT457 | SC-74; TSOP6 | 2.9 x 1.5 x 1 | |
| NCR420U | SOT457 | SC-74; TSOP6 | 2.9 x 1.5 x 1 | |
| NCR420Z | SOT223 | SC-73 | 6.5 x 3.5 x 1.65 | |
| NCR421U | SOT457 | SC-74; TSOP6 | 2.9 x 1.5 x 1 | |
| NCR421Z | SOT223 | SC-73 | 6.5 x 3.5 x 1.65 | |
| PSSI2021SAY | SOT353 | TSSOP5 | 2.1 x 1.25 x 0.95 | Constant CurrentSource |



