{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BC 817-16 B5003","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BC-817-16-B5003","canonicalUrl":"https://icboms.com/infineon/BC-817-16-B5003","factsUrl":"https://icboms.com/api/mcp/products/BC%20817-16%20B5003","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BC 817-16 B5003, NPN transistor, 45 V Vce, 500 mA Ic, 170 MHz fT, hFE min 100 at 100 mA, SOT-23-3 package, 330 mW power dissipation.","salesMarkdown":"## NPN transistor in SOT-23-3 — 45 V, 500 mA, 170 MHz The BC 817-16 B5003 is an NPN bipolar transistor in a three-lead SOT-23-3 surface-mount package. It handles a collector-emitter breakdown voltage of 45 V and a continuous collector current of 500 mA, with a transition frequency of 170 MHz. The DC current gain (hFE) is a minimum of 100 at 100 mA collector current with 1 V Vce. Maximum saturation voltage is 700 mV at 50 mA base drive and 500 mA collector current. ## Power dissipation and thermal limits Maximum power dissipation is 330 mW. The junction temperature rating is 150 °C. In a SOT-23-3 package, the thermal resistance is set by the copper area on the collector pad — keep the trace short and wide to pull heat out of the die. ## Obsolete — sourcing through independent distribution The BC 817-16 B5003 carries an Obsolete product status. No official successor part is listed on the lifecycle record. Sourcing is through independent distribution channels. The SOT-23-3 package is standard and the base part number BC 817 remains available in other gain groupings — but this exact suffix is end-of-life stock only.","metaTitle":"BC 817-16 B5003 NPN Transistor, 45V 500mA SOT-23-3, Obsolete","metaDescription":"BC 817-16 B5003 NPN transistor, 45V Vce, 500mA Ic, hFE min 100 at 100mA, 170MHz fT. SOT-23-3 package.","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); Cut Tape (CT)","Power - Max":"330 mW","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","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-SOT23","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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e1198b7a398bf9fcc31ab9c515acedbd.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is BC817-16 B5003 obsolete?","answer":"Yes, the BC 817-16 B5003 is listed as Obsolete. It is no longer manufactured by Infineon. Sourcing is through independent distribution against an RFQ."},{"question":"What is the SMD code for BC817-16?","answer":"The SMD marking code for BC817-16 is typically '1A' or similar — verify against the Infineon marking specification for the exact date/lot code variant. The SOT-23-3 body is small; the marking is a two-character alphanumeric code."},{"question":"Can I replace BC817-16 B5003 with BC817-25?","answer":"The BC817-25 has a different hFE grouping (minimum 160 at 100 mA vs 100 for the -16). If your circuit depends on the gain range, the -25 may work if the base drive is designed for a higher minimum gain. Check the Vce(sat) and Ic ratings — they are the same. The package and pinout are identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BC-817-16-B5003","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BC-817-16-B5003 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}}