{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BSP135L6906","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BSP135L6906","canonicalUrl":"https://icboms.com/infineon/BSP135L6906","factsUrl":"https://icboms.com/api/mcp/products/BSP135L6906","rawCanonicalId":null},"summary":{"shortDescription":"Infineon SIPMOS N-Channel Depletion MOSFET, BSP135L6906, 600 V Vdss, 120 mA Id, 45 Ohm Rds(on) at 10 V, PG-SOT223-4 surface mount, -55 to 150 °C.","salesMarkdown":"## 600 V depletion-mode MOSFET in a SOT-223 footprint Depletion-mode means the device is normally on at zero gate-source voltage — it conducts until a negative Vgs pinches it off. ## Rds(on) and current — sizing the load The 120 mA continuous drain rating at 25 °C ambient sets the practical load ceiling; at elevated temperatures derating applies. For a 600 V device, the Rds(on) is comparatively high — this part is sized for low-power auxiliary rails, bleeder circuits, or linear current regulation rather than high-efficiency switching. ## Depletion-mode design-in — the normally-on reality Because the BSP135L6906 is a depletion-mode MOSFET, the gate must be driven below the source to turn the device off. The maximum gate-source voltage is ±20 V, and the threshold voltage is 1 V at 94 µA — meaning the device is fully on at zero Vgs and begins to pinch off as the gate is pulled negative. This characteristic is essential for circuits that must start up without an auxiliary bias rail, such as the start-up transistor in a flyback converter's self-biased controller. For a BOM line this means no supply-risk flag and no urgency to qualify a replacement. The part is ROHS3 compliant.","metaTitle":"Infineon BSP135L6906 SIPMOS N-Ch Depletion MOSFET, 600 V","metaDescription":"Infineon BSP135L6906 N-channel depletion-mode MOSFET, 600 V Vdss, 120 mA Id, 45 Ohm Rds(on) in PG-SOT223-4. Active production, ROHS3.","metaKeywords":null},"attributes":{"series":"SIPMOS®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"SIPMOS®","Package":"Bulk","FET Type":"N-Channel","Vgs (Max)":"±20V","Technology":"MOSFET (Metal Oxide)","FET Feature":"Depletion Mode","Mounting Type":"Surface Mount","Package / Case":"TO-261-4, TO-261AA","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"1V @ 94µA","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"45Ohm @ 120mA, 10V","Power Dissipation (Max)":"1.8W (Ta)","Supplier Device Package":"PG-SOT223-4-21","Gate Charge (Qg) (Max) @ Vgs":"4.9 nC @ 5 V","Drain to Source Voltage (Vdss)":"600 V","Input Capacitance (Ciss) (Max) @ Vds":"146 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"0V, 10V","Current - Continuous Drain (Id) @ 25°C":"120mA (Ta)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.87","stockQuantity":0,"priceTiers":[{"qty":347,"price":"$0.87000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b842c6c06d896e263852337d57e1c84e.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BSP135L6906","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BSP135L6906 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}}