{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BCR503E6393HTSA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BCR503E6393HTSA1","canonicalUrl":"https://icboms.com/infineon/BCR503E6393HTSA1","factsUrl":"https://icboms.com/api/mcp/products/BCR503E6393HTSA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BCR503E6393HTSA1 NPN pre-biased transistor, 50 V collector-emitter breakdown, 500 mA collector current, 100 MHz transition frequency, 2.2 kOhm base and emitter-base resistors, PG-SOT23 package, 330 mW power dissipation.","salesMarkdown":"## Pre-biased NPN for switching — what the ratings tell you The Infineon BCR503E6393HTSA1 is an NPN pre-biased transistor in a PG-SOT23 package, integrating two 2.2 kOhm resistors (R1 base, R2 emitter-base) so you can drive it directly from a logic output without external bias components. With a 50 V collector-emitter breakdown and 500 mA maximum collector current, it handles low-side switching loads like relays, solenoids, and indicator LEDs in 5 V to 24 V systems. The 100 MHz transition frequency is fine for PWM up to a few hundred kilohertz; the 330 mW power limit means you'll want to check junction temperature if switching more than about 150 mA continuous at room ambient. ## Sourcing a discontinued part This part carries an Obsolete product status. It is no longer manufactured by Infineon and has no official successor listed in the lifecycle record. If you're qualifying a new design, look at current Infineon pre-biased NPN families in SOT-23; the 2.2 kOhm / 2.2 kOhm resistor divider is a common bias configuration, so a parametric search on that ratio plus 500 mA Ic and 50 V Vce will turn up active alternatives. ## Rework note: SOT-23 is friendly The PG-SOT23 package (TO-236-3 / SC-59 equivalent) is about as rework-friendly as a three-lead part gets. Low thermal mass means it lifts clean with hot air at 300°C for a few seconds — no preheat needed. Will it survive the hot air? Yes, easily. Just don't cook it past 260°C for more than ten seconds or you risk shifting the bias resistors' values.","metaTitle":"Infineon BCR503E6393HTSA1 NPN Pre-Biased Transistor","metaDescription":"Infineon BCR503E6393HTSA1 NPN pre-biased transistor, 50V Vce, 500mA Ic, 100MHz 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":"NPN - Pre-Biased","lifecycle_stage":"eol_hot","Base Product Number":"BCR503","Resistor - Base (R1)":"2.2 kOhms","Frequency - Transition":"100 MHz","Supplier Device Package":"PG-SOT23","Resistor - Emitter Base (R2)":"2.2 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":"40 @ 50mA, 5V","Voltage - Collector Emitter Breakdown (Max)":"50 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/43f6e03ae332a53c3a0636b798b6c26e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy BCR503E6393HTSA1?","answer":"Submit an RFQ for current availability and pricing — each quote is confirmed at order time against our multi-source supply network."},{"question":"What is the replacement for BCR503E6393HTSA1?","answer":"No official successor is listed. For new designs, search for current Infineon or equivalent pre-biased NPN transistors in SOT-23 with 2.2 kOhm base and emitter-base resistors, 500 mA Ic, and 50 V Vce."},{"question":"What are the specifications of BCR503E6393HTSA1?","answer":"It is an NPN pre-biased transistor with 50 V Vce breakdown, 500 mA Ic max, 100 MHz ft, 330 mW power dissipation, 2.2 kOhm base and emitter-base resistors, and 300 mV Vce saturation at 2.5 mA base / 50 mA collector. Packaged in PG-SOT23 (TO-236-3 / SC-59)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BCR503E6393HTSA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BCR503E6393HTSA1 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}}