{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BCR108E6433HTMA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BCR108E6433HTMA1","canonicalUrl":"https://icboms.com/infineon/BCR108E6433HTMA1","factsUrl":"https://icboms.com/api/mcp/products/BCR108E6433HTMA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BCR108E6433HTMA1 NPN pre-biased transistor, 100 mA collector current, 50 V Vce breakdown, 170 MHz transition frequency, integrated 2.2 kΩ base resistor and 47 kΩ emitter-base resistor, SOT-23-3 package, 200 mW power dissipation, NRND lifecycle.","salesMarkdown":"## NPN pre-biased transistor with integrated bias resistors The Infineon BCR108E6433HTMA1 is an NPN pre-biased transistor in a SOT-23-3 package, integrating a 2.2 kΩ base resistor and a 47 kΩ emitter-base resistor. It switches loads up to 100 mA collector current at a 50 V collector-emitter breakdown voltage, with a 170 MHz transition frequency. The built-in bias network eliminates two external resistors per channel, saving board area and reducing pick-and-place cost in high-volume digital switching, relay drivers, and logic-level interface circuits. New designs should evaluate a pin-compatible pre-biased NPN transistor in the same SOT-23-3 footprint to avoid a future last-time-buy event. The 100 mA maximum collector current and 200 mW power dissipation limit this part to low-current switching — think driving a small relay coil, an LED string, or a logic-level buffer. The 300 mV saturation voltage at 500 µA base current and 10 mA collector current keeps conduction losses low in lightly loaded circuits. The 100 nA collector cutoff leakage suits battery-powered or high-impedance nodes where off-state current matters. ## SOT-23-3 — rework-friendly footprint The SOT-23-3 package is one of the easiest small-signal packages to rework by hand. With a hot-air station at 300°C and a fine tip, you can lift the part without lifting the pad, provided the board has adequate copper relief. The PG-SOT23 supplier device package is electrically identical to the standard SOT-23-3 footprint.","metaTitle":"Infineon BCR108E6433HTMA1 NPN Pre-Biased Transistor, 100 mA","metaDescription":"Infineon BCR108E6433HTMA1 NPN pre-biased transistor, 100 mA Ic, 50 V Vce, 170 MHz fT, 2.2 kΩ base resistor, 47 kΩ emitter-base resistor, SOT-23-3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Infineon Technologies","Series":"-","Package":"Tape & Reel (TR)","Power - Max":"200 mW","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Product Status":"Not For New Designs","Transistor Type":"NPN - Pre-Biased","lifecycle_stage":"eol_hot","Base Product Number":"BCR108","Resistor - Base (R1)":"2.2 kOhms","Frequency - Transition":"170 MHz","Supplier Device Package":"PG-SOT23","Resistor - Emitter Base (R2)":"47 kOhms","Vce Saturation (Max) @ Ib, Ic":"300mV @ 500µA, 10mA","Current - Collector (Ic) (Max)":"100 mA","Current - Collector Cutoff (Max)":"100nA (ICBO)","DC Current Gain (hFE) (Min) @ Ic, Vce":"70 @ 5mA, 5V","Voltage - Collector Emitter Breakdown (Max)":"50 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.0431","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ca1544aaf2aafd2d035881c4e6e72774.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is BCR108E6433HTMA1 obsolete or NRND?","answer":"It is not recommended for new designs, but existing production can source it through independent distribution against an RFQ."},{"question":"What is the closest pin-compatible alternative to BCR108E6433HTMA1?","answer":"A pin-compatible alternative is another NPN pre-biased transistor in SOT-23-3 with the same 2.2 kΩ base resistor and 47 kΩ emitter-base resistor values. The Infineon BCR108 series includes multiple variants with different bias resistor combinations; confirm the resistor values match your design before substituting."},{"question":"What is BCR108E6433HTMA1's power dissipation rating?","answer":"The maximum power dissipation is 200 mW. This limits the continuous collector current at higher voltages — at 50 V the practical current is well below 100 mA to stay within the power budget."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BCR108E6433HTMA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BCR108E6433HTMA1 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}}