{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BCR523E6327HTSA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BCR523E6327HTSA1","canonicalUrl":"https://icboms.com/infineon/BCR523E6327HTSA1","factsUrl":"https://icboms.com/api/mcp/products/BCR523E6327HTSA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BCR523E6327HTSA1 NPN pre-biased transistor, 500 mA collector current, 50 V Vce, 100 MHz transition frequency, SOT-23-3 package.","salesMarkdown":"## Last Buy — plan your final order The BCR523E6327HTSA1 carries a Last Buy lifecycle status. This is the final production window — once stock clears, the part will not be manufactured again. If this transistor is on your BOM, now is the time to secure lifetime buy quantities or qualify a replacement. ## Pre-biased NPN in SOT-23-3 — what the ratings mean This is an NPN pre-biased transistor with integrated bias resistors: 1 kΩ base (R1) and 10 kΩ emitter-base (R2). The built-in resistor network eliminates two external passives per transistor, shrinking board area and reducing pick-and-place cost. Collector current is rated 500 mA continuous, with a collector-emitter breakdown of 50 V — suitable for low-side switching in 12 V and 24 V industrial loads, relay drivers, and logic-level interface circuits. Transition frequency of 100 MHz is adequate for PWM switching up to several megahertz. ## 330 mW power dissipation — thermal budget in a small package Maximum power dissipation is 330 mW. In a SOT-23-3, that limits continuous collector current at higher ambient temperatures. For a 50 mA load at 5 V Vce, dissipation is about 250 mW — within the limit at 25 °C ambient, but derating above 85 °C requires checking the thermal curve. If your design runs the transistor near 500 mA with significant Vce, plan for a larger package or parallel devices.","metaTitle":"Infineon BCR523E6327HTSA1 NPN Pre-Biased Transistor, 500 mA","metaDescription":"Infineon BCR523E6327HTSA1 NPN pre-biased transistor in SOT-23-3. 500 mA Ic, 50 V Vce, 100 MHz fT.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","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":"Last Time Buy","Transistor Type":"NPN - Pre-Biased","lifecycle_stage":"eol_hot","Base Product Number":"BCR523","Resistor - Base (R1)":"1 kOhms","Frequency - Transition":"100 MHz","Supplier Device Package":"PG-SOT23","Resistor - Emitter Base (R2)":"10 kOhms","Vce Saturation (Max) @ Ib, Ic":"300mV @ 2.5mA, 50mA","Current - Collector (Ic) (Max)":"500 mA","Current - Collector Cutoff (Max)":"100nA (ICBO)","DC Current Gain (hFE) (Min) @ Ic, Vce":"70 @ 50mA, 5V","Voltage - Collector Emitter Breakdown (Max)":"50 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://www.infineon.com/dgdl/bcr523series.pdf?folderId=db3a30431428a373011440769fd70304&fileId=db3a30431428a3730114407c929c0309","sourceUrl":null},"ai":{"faq":[{"question":"Is BCR523E6327HTSA1 obsolete?","answer":"The BCR523E6327HTSA1 is not yet obsolete but is in a Last Buy phase. Production is ending — final orders should be placed now to avoid a shortage."},{"question":"What is the closest pin-compatible alternative to BCR523E6327HTSA1?","answer":"The base product number BCR523 covers the same die in different packaging or reel options. For a direct functional replacement, look at other Infineon pre-biased NPN transistors in SOT-23-3 with similar R1/R2 values (1 kΩ / 10 kΩ) and 500 mA / 50 V ratings — for example, the BCR523 series variants. Verify pinout and bias resistor values against your design before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BCR523E6327HTSA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BCR523E6327HTSA1 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}}