{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BC 817-25W E6327","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BC-817-25W-E6327","canonicalUrl":"https://icboms.com/infineon/BC-817-25W-E6327","factsUrl":"https://icboms.com/api/mcp/products/BC%20817-25W%20E6327","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BC 817-25W E6327 NPN transistor, 45 V Vce, 500 mA Ic, 170 MHz fT, hFE 160-400 at 100 mA, 250 mW, SC-70/SOT-323, surface mount.","salesMarkdown":"## 45 V, 500 mA NPN in a SOT-323 footprint The BC 817-25W E6327: The Infineon BC 817-25W is a general-purpose NPN bipolar transistor in the compact SC-70 (SOT-323) surface-mount package. It handles a 45 V collector-emitter breakdown and 500 mA continuous collector current, making it a fit for low-to-medium current switching and linear amplification in space-constrained designs. The -25W suffix selects a DC current gain bracket of 160 minimum at 100 mA collector current and 1 V Vce, which is the mid-range gain group for the BC 817 family. With a transition frequency of 170 MHz, this transistor is fast enough for general-purpose switching up to a few megahertz and for analog amplifier stages in the audio band and low RF. The 250 mW power dissipation limit in the SOT-323 body is the real constraint — continuous collector current near the 500 mA maximum will exceed the package's thermal capability unless the duty cycle is low or the ambient is well below the 150°C junction temperature rating. For a saturated switch at 100 mA, the 700 mV Vce(sat) maximum at 50 mA base drive is typical for a medium-gain NPN. Infineon has classified the BC 817-25W E6327 as obsolete. That means the manufacturer has stopped production and no further last-time-buy windows are open through the factory channel. Any available stock is what remains in the independent distribution pipeline. When you source this part through us, we confirm the date-code provenance and condition before quoting — every lot is sourced against your RFQ, not from a standing inventory that may have sat past its moisture-sensitivity floor life. ## Pin-compatible alternatives and the BC 817 gain group The -25W designates a specific hFE range of 160 to 400 at 100 mA. If the exact gain bin is not critical to the circuit's bias point, a standard BC 817-25 or BC 817-40 in the same package may work with a resistor adjustment. For a direct replacement with identical gain grouping, look for a BC 817-25W from another manufacturer that still produces the part — but verify the package suffix matches the SOT-323 variant. No official Infineon successor has been released for this order code.","metaTitle":"BC 817-25W E6327 NPN Transistor, 45V 500mA SC-70, Obsolete","metaDescription":"Infineon BC 817-25W E6327 NPN transistor, 45V Vce, 500mA Ic, 170MHz fT in SC-70. Obsolete per manufacturer.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Infineon Technologies","Series":"-","Package":"Tape & Reel (TR)","Power - Max":"250 mW","Mounting Type":"Surface Mount","Package / Case":"SC-70, SOT-323","Product Status":"Obsolete","Transistor Type":"NPN","lifecycle_stage":"eol_hot","Base Product Number":"BC 817","Operating Temperature":"150°C(TJ)","Frequency - Transition":"170MHz","Supplier Device Package":"PG-SOT323","Vce Saturation (Max) @ Ib, Ic":"700mV @ 50mA, 500mA","Current - Collector (Ic) (Max)":"500 mA","Current - Collector Cutoff (Max)":"100nA (ICBO)","DC Current Gain (hFE) (Min) @ Ic, Vce":"160 @ 100mA, 1V","Voltage - Collector Emitter Breakdown (Max)":"45 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e1198b7a398bf9fcc31ab9c515acedbd.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is BC 817-25W E6327 obsolete?","answer":"Yes, Infineon lists the BC 817-25W E6327 as obsolete. Production has ceased, and no factory last-time-buy is available. Remaining stock in the independent channel is the only supply path."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BC-817-25W-E6327","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BC-817-25W-E6327 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}}