For Reference Only
| Part Number | Q4040K5TP |
| Manufacturer | Littelfuse Inc. |
| Category | Discrete Semiconductor › Thyristors - TRIACs |
| Description | ALTSTR 400V 40A 50-50-50MA TO218 |
| Lifecycle | Active |
| RoHS | No RoHS Information |
| EDA/CAD Models | Q4040K5TP PCB Footprint and Symbol |
| Warehouses | USA, Europe, China, Hong Kong SAR |
| Estimated Delivery | Dec 07 - Dec 11 2025(Choose Expedited Shipping) |
| Warranty | Up to 1 year [Limited-Warranty]* |
| Payment |
|
| Shipping | ![]() |
| Part Number: | Q4040K5TP |
| Brand: | Littelfuse Inc. |
| Lifecycle: | Active |
| RoHS: | Lead free / RoHS Compliant |
| Category: | Discrete Semiconductor |
| Subcategory: | Thyristors - TRIACs |
| Manufacturer: | Littelfuse Inc. |
| Product Status: | Active |
| Triac Type: | Alternistor - Snubberless |
| Voltage - Off State: | 400 V |
| Current - On State (It (RMS)) (Max): | 40 A |
| Voltage - Gate Trigger (Vgt) (Max): | 1.3 V |
| Current - Non Rep. Surge 50, 60Hz (Itsm): | 335A, 400A |
| Current - Gate Trigger (Igt) (Max): | 50 mA |
| Current - Hold (Ih) (Max): | 100 mA |
| Configuration: | Single |
| Operating Temperature: | -40°C ~ 125°C (TJ) |
| Mounting Type: | Through Hole |
| Package / Case: | TO-218-3 Isolated Tab, TO-218AC |
| Supplier Device Package: | TO-218AC Isolated |
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| In Stock | 9242 pieces - More on Order |
|---|---|
| Quote Limit | No Limit |
| Lead-Time | To be Confirmed |
| Minimum | 1 |
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250 | $6.14700 | $1536.75 |
Due to the impact of the COVID-19,the above prices have not been updated, please resend the inquiry to us, thank you for your understanding
Please feel free to contact us for details.