{"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. 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. 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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e1198b7a398bf9fcc31ab9c515acedbd.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BC%20817-16%20B5003/alternatives.json"},"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}}