{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BC 856B E6433","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BC-856B-E6433","canonicalUrl":"https://icboms.com/infineon/BC-856B-E6433","factsUrl":"https://icboms.com/api/mcp/products/BC%20856B%20E6433","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BC 856B E6433 PNP general-purpose transistor, 65 V VCEO, 100 mA Ic, 250 MHz fT, 330 mW, SOT-23-3 package, Tape & Reel.","salesMarkdown":"## Obsolete — sourcing this PNP transistor now The Infineon BC 856B E6433 is listed as obsolete by the manufacturer. With a 65 V collector-emitter breakdown voltage and 100 mA maximum collector current, this transistor suits general-purpose switching and amplification in circuits up to about 48 V rails with derating. The 330 mW power limit in the SOT-23 package means continuous dissipation needs checking against the operating current and ambient temperature — at 25 °C ambient and 100 mA, VCE must stay under about 3.3 V to stay inside the power budget. The 250 MHz transition frequency gives enough bandwidth for audio amplifiers, signal conditioning, and moderate-speed switching up to a few MHz. ## DC gain and saturation — the B-grade selection The B-grade suffix selects a minimum DC current gain (hFE) of 220 at 2 mA collector current and 5 V VCE. This is the medium-gain bin in the BC 856 family, offering a good balance between consistent drive capability and low saturation voltage — 650 mV maximum at 5 mA base current and 100 mA collector current. The 15 nA maximum collector cutoff current (ICBO) keeps leakage low in high-impedance nodes, which matters for battery-powered or temperature-sensitive designs. ## SOT-23 footprint and tape-and-reel delivery The transistor comes in the standard TO-236-3 / SC-59 / SOT-23-3 surface-mount package, supplier device package PG-SOT23. The Tape & Reel (TR) packaging format suits automated pick-and-place assembly. The 150 °C maximum junction temperature rating allows operation in warm environments, but the 330 mW power limit in this small package means thermal design — not the junction temperature — is the practical constraint for continuous operation.","metaTitle":"Infineon BC 856B E6433 PNP Transistor, 65 V, 100 mA, 250 MHz","metaDescription":"Infineon BC 856B E6433 PNP general-purpose transistor in SOT-23. 65 V VCEO, 100 mA Ic, 250 MHz fT, 330 mW. 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":"330 mW","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","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-SOT23","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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e1b87f1369aa1bc7686db6c9c2be505e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the specifications of BC 856B E6433?","answer":"The BC 856B E6433 is a PNP general-purpose transistor with 65 V collector-emitter breakdown voltage, 100 mA maximum collector current, 250 MHz transition frequency, 330 mW maximum power dissipation, minimum DC current gain of 220 at 2 mA / 5 V, maximum saturation voltage of 650 mV at 5 mA base / 100 mA collector, and 15 nA maximum collector cutoff current. It comes in a SOT-23-3 surface-mount package rated for 150 °C junction temperature."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BC-856B-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-856B-E6433 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}