{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH152RL","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH152RL","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH152RL","factsUrl":"https://icboms.com/api/mcp/products/STTH152RL","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH152RL, Fast Recovery Diode, Standard type, 200 V reverse, 1.5 A average rectified, 32 ns trr, DO-204AC (DO-15) axial package, through-hole mount, 175°C max junction temperature.","salesMarkdown":"## STTH152RL — a 200 V, 1.5 A fast recovery diode in a DO-15 axial package The STTH152RL from STMicroelectronics is a standard fast recovery diode rated for 200 V reverse voltage and 1.5 A average forward current, packaged in a DO-204AC (DO-15) axial-lead through-hole case. Its 32 ns reverse recovery time (trr) places it in the fast-recovery class (≤500 ns, >200 mA), making it suitable for high-frequency rectification, freewheeling, and snubbing circuits in power supplies and converters. ## 32 ns trr — what it means for switching circuits A 32 ns trr at rated conditions means the diode recovers quickly from forward conduction, reducing switching losses and ringing in circuits operating above 50 kHz. This is a meaningful improvement over standard recovery diodes (trr > 500 ns) and allows the STTH152RL to be used in continuous-conduction-mode boost converters or as a freewheeling diode in flyback topologies without excessive heat buildup. ## 200 V / 1.5 A — where it fits in the power budget With a 200 V reverse voltage rating and 1.5 A average forward current, this diode is sized for low-to-medium power rails — think 48 V telecom supplies, 24 V industrial PFC stages, or auxiliary windings in off-line converters. The forward voltage drop is 950 mV max at 1.5 A, which sets the conduction loss floor at about 1.4 W at full load; adequate heatsinking or airflow is needed if the ambient exceeds 85°C. ## DO-15 axial package — through-hole assembly considerations The DO-15 axial package (DO-204AC) is a through-hole form factor with wire leads on 0.300-inch (7.62 mm) centres. It is not compatible with surface-mount reflow processes; boards must be wave-soldered or hand-soldered. For new designs, a surface-mount alternative like the SMB or SMA package would reduce assembly cost, but the axial lead is still common in high-reliability, high-temperature, or retrofit applications where through-hole is preferred for mechanical robustness. ## 175°C junction temperature — thermal headroom for harsh environments Rated for a maximum junction temperature of 175°C, the STTH152RL can operate in elevated ambient conditions such as inside a sealed power supply, motor drive enclosure, or lighting ballast where internal temperatures reach 85–105°C. This headroom also allows for higher current derating at lower ambient temperatures without exceeding the junction limit.","metaTitle":"STTH152RL Fast Recovery Diode, 200V 1.5A, DO-15, 32 ns trr","metaDescription":"STTH152RL standard recovery diode, 200V 1.5A, 32 ns trr, DO-15 axial package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Tape & Reel (TR)","Diode Type":"Standard","Mounting Type":"Through Hole","Package / Case":"DO-204AC, DO-15, Axial","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STTH152","Capacitance @ Vr, F":"-","Supplier Device Package":"DO-15","Reverse Recovery Time (trr)":"32 ns","Current - Reverse Leakage @ Vr":"1.5 µA @ 200 V","Voltage - DC Reverse (Vr) (Max)":"200 V","Current - Average Rectified (Io)":"1.5A","Operating Temperature - Junction":"175°C(Max)","Voltage - Forward (Vf) (Max) @ If":"950 mV @ 1.5 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1555","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e607b7c60dfb0c886477862cc3417197.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement for STTH152RL?","answer":"No official replacement or successor part number is listed by STMicroelectronics. For a form-fit-function substitute, a cross-reference search against the 200 V, 1.5 A, 32 ns trr, DO-15 specification is needed; common alternatives include the STTH1R02 or similar fast recovery diodes in the same package, but pin compatibility and electrical margins must be verified against the original design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH152RL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH152RL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}