{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BC 807-40 E6433","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BC-807-40-E6433","canonicalUrl":"https://icboms.com/infineon/BC-807-40-E6433","factsUrl":"https://icboms.com/api/mcp/products/BC%20807-40%20E6433","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BC 807-40 E6433 PNP transistor, 45 V VCEO, 500 mA IC, 200 MHz fT, hFE 250 @ 100 mA, SOT-23 package, 330 mW, 150°C junction.","salesMarkdown":"## What this PNP transistor is and when you pick it The Infineon BC 807-40 E6433 is a PNP general-purpose switching transistor in a SOT-23 surface-mount package. It is the high-gain variant (hFE grade 40) of the BC 807 family, with a minimum DC current gain of 250 at 100 mA collector current and 1 V VCE. The 45 V collector-emitter breakdown and 500 mA continuous collector rating place it in the medium-power small-signal class — suitable for driving relays, small solenoids, LED arrays, and as a high-side load switch where a PNP pull-up is needed. The 200 MHz transition frequency keeps switching losses low in sub-MHz PWM applications like fan control or dimming. ## The 500 mA collector current — what it can and cannot drive The 500 mA continuous collector current is the absolute limit, not a recommended operating point for sustained use. For a 24 V relay coil drawing 200 mA, this transistor has comfortable margin. For a 500 mA solenoid, you are at the ceiling — derate for ambient temperature and consider a TO-252 or larger device. The 330 mW power dissipation in the SOT-23 package is the real constraint: at 500 mA and 0.7 V VCE(sat), you are already at 350 mW, exceeding the package rating. Practical continuous current is lower, around 300 mA, before the junction temperature climbs above 150°C. ## Gain of 250 — why this matters for logic-level drive The minimum hFE of 250 at 100 mA means a base current of only 400 µA is needed to saturate the transistor at that collector current. A 3.3 V GPIO through a 6.8 kΩ series resistor delivers that easily. This is the advantage of the -40 gain grade over the -16 or -25 variants — you can drive heavier loads directly from a microcontroller pin without a pre-driver transistor. The VCE(sat) of 700 mV at 50 mA base, 500 mA collector is typical for a saturated PNP in this class. ## SOT-23 footprint and second-source reality The SOT-23 (TO-236-3 / SC-59) footprint is ubiquitous. The Infineon PG-SOT23 variant is pin-compatible with the industry-standard BC807-40 from Nexperia, ON Semiconductor, and Diodes Inc. If you are replacing a BC807-40 from another manufacturer, the mechanical fit is identical — same 1.9 mm pitch, same 2.9 x 1.3 mm body. The electrical specs are interchangeable across suppliers for the -40 gain grade. Infineon lists the BC 807-40 E6433 as obsolete. For a production BOM, you need a replacement or a surplus-channel source. For existing designs, the surplus market carries inventory, but expect pricing above the original factory level and no guaranteed long-term availability.","metaTitle":"BC 807-40 E6433 PNP Transistor, 45 V, 500 mA, SOT-23","metaDescription":"BC 807-40 E6433 PNP transistor: 45 V VCEO, 500 mA IC, hFE 250 min, 200 MHz fT, SOT-23 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)","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 807","Operating Temperature":"150°C (TJ)","Frequency - Transition":"200MHz","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":"250 @ 100mA, 1V","Voltage - Collector Emitter Breakdown (Max)":"45 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.9200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/20152113a763f856780131d02465bae5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BC%20807-40%20E6433/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum collector current of BC 807-40?","answer":"The maximum continuous collector current (IC) is 500 mA. The 330 mW power dissipation in the SOT-23 package limits practical sustained current to about 300 mA at room temperature."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BC-807-40-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-807-40-E6433 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T15:19:16.556Z","lastPublished":"2026-07-16T15:19:16.556Z","indexable":true}}