{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TN1605H-6T","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"TN1605H-6T","canonicalUrl":"https://icboms.com/stmicroelectronics/TN1605H-6T","factsUrl":"https://icboms.com/api/mcp/products/TN1605H-6T","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics TN1605H-6T standard recovery SCR, 600 V off-state voltage, 16 A RMS on-state current, 153 A non-repetitive surge, TO-220-3 through-hole package.","salesMarkdown":"## 16 A RMS phase-control SCR for 600 V line The TN1605H-6T is a standard-recovery SCR from STMicroelectronics rated for 16 A RMS on-state current at 600 V off-state blocking voltage. That 16 A RMS figure is the thermal limit for continuous conduction in a 50/60 Hz phase-control circuit — the part can carry a 10 A average current indefinitely when properly heatsunk, but the RMS rating governs the I²T heating in the junction for non-sinusoidal waveforms like those from a phase-fired controller. The 153 A non-repetitive surge capability at 60 Hz means this SCR survives the inrush from a motor start or a capacitive load charging event — the junction temperature spikes above the steady-state limit for one cycle, but the silicon die is sized to absorb that energy without failure. For a 16 A RMS device, a 153 A surge is roughly 9.5× the rated current, which is typical for a phase-control thyristor in this die size. ## Gate drive and latching margins Maximum gate trigger current is 6 mA and maximum gate trigger voltage is 1.3 V. These are the thresholds at 25°C — the actual trigger current rises at low temperature, so a gate drive circuit delivering at least 15-20 mA with a 5 V source provides cold-start margin down to -40°C. The 20 mA maximum holding current means the SCR stays latched once triggered as long as the load current stays above that level; in a highly inductive circuit with current ripple dipping near zero, a snubber across the SCR or a higher-hold-current device may be needed to prevent commutation dropout. The 1.6 V maximum on-state voltage at peak current sets the conduction loss: at 16 A RMS the dissipation is about 25 W, which demands a heatsink with a thermal resistance below 5°C/W to keep the junction under 150°C. ## TO-220 package and board-level fit The TN1605H-6T comes in a standard TO-220-3 through-hole package, with the tab as the anode connection. The mounting hole in the tab accepts an M3 screw for mechanical retention and thermal interface to a heatsink. The lead pitch is 2.54 mm (0.100 inch) — a standard 0.100-inch grid layout works without spreading the holes. The 150°C maximum junction temperature means the thermal pad area on the PCB or the heatsink contact surface must be sized for the 25 W worst-case conduction loss. The part ships in tube packaging, which is the standard anti-static handling format for through-hole TO-220 devices. Tubes protect the leads from bending during transport and are compatible with automatic insertion equipment that feeds from a tube magazine. ## Active production and compliance posture The ROHS3 compliance covers the full substance restriction including the four phthalates, which matters for EU-market equipment subject to the 2015/863 amendment. The TN2015H-6I offers 20 A average in a different package variant (ECOPACK2), but requires a board spin for the different footprint.","metaTitle":"STMicroelectronics TN1605H-6T SCR, 600V 16A TO-220","metaDescription":"STMicroelectronics TN1605H-6T standard recovery SCR, 600V off-state, 16A RMS, 153A surge. Active production, ROHS3 compliant. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","SCR Type":"Standard Recovery","Mounting Type":"Through Hole","Package / Case":"TO-220-3","lifecycle_stage":"eol_hot","Voltage - Off State":"600 V","Operating Temperature":"-40°C ~ 150°C","Supplier Device Package":"TO-220","Current - Hold (Ih) (Max)":"20 mA","Current - Off State (Max)":"5 µA","Voltage - On State (Vtm) (Max)":"1.6 V","Current - Gate Trigger (Igt) (Max)":"6 mA","Current - On State (It (AV)) (Max)":"10 A","Voltage - Gate Trigger (Vgt) (Max)":"1.3 V","Current - On State (It (RMS)) (Max)":"16 A","Current - Non Rep. Surge 50, 60Hz (Itsm)":"140A, 153A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.12","priceTiers":[{"qty":1,"price":"$1.12000","currency":"USD"},{"qty":10,"price":"$0.99800","currency":"USD"},{"qty":100,"price":"$0.77770","currency":"USD"},{"qty":500,"price":"$0.64246","currency":"USD"},{"qty":1000,"price":"$0.55825","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5fedac5b8805d9aedd1f1f6c62d60d3f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TN1605H-6T/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the STMicroelectronics TN1605H-6T and check availability?","answer":"The TN1605H-6T is sourced to order against an RFQ through independent and authorized distribution channels."},{"question":"What is the difference between TN1605H-6T and TN1610H-6T?","answer":"Both are standard-recovery SCRs in the same TO-220 package with 600 V blocking voltage. The TN1610H-6T is rated for 16 A average and 25 A RMS on-state current versus the TN1605H-6T's 10 A average and 16 A RMS — a drop-in upgrade for higher-current loads without board changes."},{"question":"What compliance documentation does STMicroelectronics provide for TN1605H-6T?","answer":"The TN1605H-6T is ROHS3 compliant, covering the full substance restriction including the four phthalates. Standard STMicroelectronics documentation includes the datasheet, RoHS declaration, and REACH compliance information available through the product page."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/TN1605H-6T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/TN1605H-6T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}