{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BC 856BW E6433","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BC-856BW-E6433","canonicalUrl":"https://icboms.com/infineon/BC-856BW-E6433","factsUrl":"https://icboms.com/api/mcp/products/BC%20856BW%20E6433","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BC 856BW E6433 PNP transistor, 65 V Vceo, 100 mA Ic, 250 MHz fT, hFE min 220, SC-70/SOT-323 package, 250 mW power dissipation.","salesMarkdown":"## Small-signal PNP for general-purpose switching and amplification The Infineon BC 856BW E6433 is a PNP general-purpose transistor in the SC-70 / SOT-323 package, rated for 65 V collector-emitter breakdown and 100 mA continuous collector current. Maximum power dissipation is 250 mW, and the junction temperature rating extends to 150 °C. The 65 V Vceo gives headroom for 24 V or 48 V rails with derating margin, while the 100 mA Ic(max) covers relay drivers, LED switching, and logic-level interfacing. The 250 mW power limit in the SOT-323 package means the part is best suited for low-duty-cycle or moderate-current applications; continuous dissipation above about 150 mW at 25 °C ambient needs a layout that pulls heat into the board. The 250 MHz fT is fast enough for audio-band amplification and moderate-speed switching up to a few MHz, but not intended for RF power stages. The collector cutoff current of 15 nA (max) ensures low leakage in battery-powered or high-impedance circuits. Infineon lists the BC 856BW E6433 as obsolete. For new designs, consider the broader BC856 family in SOT-323 (e.g., BC856B or BC856A variants) which share the same pinout and similar DC characteristics; verify the hFE grade and Vce(sat) match your circuit. ## SOT-323 footprint and rework considerations The SC-70 / SOT-323 package is a three-lead surface-mount device with a 1.3 mm body width. It is rework-friendly under hot air at 300–350 °C with a fine nozzle; the small thermal mass means it solders quickly and is less prone to tombstoning than smaller packages. Pin 1 identification is marked by a bevel on the package body — confirm orientation before placement. Standard SOT-323 footprint applies; no exposed pad.","metaTitle":"BC 856BW E6433 PNP transistor, 65 V, 100 mA, SOT-323","metaDescription":"BC 856BW E6433 PNP transistor: 65 V Vceo, 100 mA Ic, 250 MHz fT, hFE min 220, SC-70/SOT-323 package. Request quote.","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":"PNP","lifecycle_stage":"eol_hot","Base Product Number":"BC 856","Operating Temperature":"150°C (TJ)","Frequency - Transition":"250MHz","Supplier Device Package":"PG-SOT323","Vce Saturation (Max) @ Ib, Ic":"650mV @ 5mA, 100mA","Current - Collector (Ic) (Max)":"100 mA","Current - Collector Cutoff (Max)":"15nA (ICBO)","DC Current Gain (hFE) (Min) @ Ic, Vce":"220 @ 2mA, 5V","Voltage - Collector Emitter Breakdown (Max)":"65 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e1b87f1369aa1bc7686db6c9c2be505e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BC%20856BW%20E6433/alternatives.json"},"ai":{"faq":[{"question":"What is the equivalent of BC 856BW E6433?","answer":"No single direct replacement is listed by Infineon. The BC856B in SOT-323 (same base part number BC856) is the closest pin-compatible alternative, with similar 65 V Vceo and 100 mA Ic ratings. Check the hFE grade — the BC856BW E6433 specifies a minimum gain of 220 at 2 mA, which matches the BC856B grade."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BC-856BW-E6433","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BC-856BW-E6433 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T15:11:34.357Z","lastPublished":"2026-07-16T15:11:34.357Z","indexable":true}}