| Part Number | Q4004F42 | Q4004F421 |
|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. |
| Category | Thyristors - TRIACs | Thyristors - TRIACs |
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| Product Status | Obsolete | Obsolete |
| Triac Type | Standard | Standard |
| Voltage - Off State | 400 V | 400 V |
| Current - On State (It (RMS)) (Max) | 4 A | 4 A |
| Voltage - Gate Trigger (Vgt) (Max) | 2.5 V | 2.5 V |
| Current - Non Rep. Surge 50, 60Hz (Itsm) | 46A, 55A | 46A, 55A |
| Current - Gate Trigger (Igt) (Max) | 25 mA | 25 mA |
| Current - Hold (Ih) (Max) | 30 mA | 30 mA |
| Configuration | Single | Single |
| Operating Temperature | - | - |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | TO-202 Long Tab | TO-202 Long Tab |
| Supplier Device Package | TO-202 | TO-202 |