{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BC817-16B5003","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BC817-16B5003","canonicalUrl":"https://icboms.com/infineon/BC817-16B5003","factsUrl":"https://icboms.com/api/mcp/products/BC817-16B5003","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BC817-16B5003 NPN transistor, 45 V Vce, 500 mA Ic, 170 MHz fT, 500 mW, SOT-23-3 package, Bulk.","salesMarkdown":"## NPN transistor for general-purpose switching and amplification The Infineon BC817-16B5003 is an NPN bipolar junction transistor in a SOT-23-3 surface-mount package, rated for 45 V collector-emitter breakdown and 500 mA continuous collector current. With a minimum DC current gain of 100 at 100 mA and a transition frequency of 170 MHz, it suits low-to-medium speed switching and linear amplification in power supplies, motor drives, and signal conditioning stages. The 500 mW power dissipation limit and 150°C junction temperature allow operation in compact, thermally constrained boards. ## Ratings that define the load and voltage headroom The 45 V Vce breakdown gives a comfortable margin for 12 V and 24 V rails, but keep derating in mind if the supply sees transients above 40 V. The 500 mA collector current is the absolute maximum — continuous operation at 300 mA to 400 mA leaves headroom for inrush and ripple. Saturation voltage is 700 mV at 50 mA base drive and 500 mA collector current, so confirm base drive current for the load you are switching. The 500 mW power limit in the SOT-23-3 package means the junction temperature climbs fast above 300 mA continuous. If the board runs hot or the transistor is near other heat sources, measure the actual dissipation or step up to a larger package variant.","metaTitle":"BC817-16B5003 NPN Transistor, 500 mA, 45 V, SOT-23-3, Active","metaDescription":"BC817-16B5003 NPN transistor: 500 mA collector current, 45 V Vce, 170 MHz fT, 500 mW power. SOT-23-3 package, active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Infineon Technologies","Series":"-","Package":"Bulk","Power - Max":"500 mW","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Product Status":"Active","Transistor Type":"NPN","lifecycle_stage":"eol_hot","Operating Temperature":"150°C(TJ)","Frequency - Transition":"170MHz","Supplier Device Package":"PG-SOT23-3-11","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":"100 @ 100mA, 1V","Voltage - Collector Emitter Breakdown (Max)":"45 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.0200","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/69b5a3e6cbeb5e2e06cdc72ece1dafca.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the exact specifications of BC817-16B5003?","answer":"The BC817-16B5003 is an NPN transistor rated for 45 V collector-emitter breakdown, 500 mA collector current, 500 mW power dissipation, and a transition frequency of 170 MHz. It comes in a SOT-23-3 surface-mount package and operates up to 150°C junction temperature."},{"question":"How does BC817-16B5003 compare to BC817-16B?","answer":"The BC817-16B5003 and BC817-16B share the same NPN transistor die with identical electrical ratings — 45 V Vce, 500 mA Ic, 170 MHz fT, and 500 mW power. The difference is packaging: the -5003 suffix indicates a specific Infineon reel or bulk packaging variant, not a change in silicon. Both are functionally interchangeable in the same SOT-23-3 footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BC817-16B5003","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BC817-16B5003 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}}