{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BCR133E6433HTMA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BCR133E6433HTMA1","canonicalUrl":"https://icboms.com/infineon/BCR133E6433HTMA1","factsUrl":"https://icboms.com/api/mcp/products/BCR133E6433HTMA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BCR133E6433HTMA1 NPN pre-biased transistor, 50 V VCEO, 100 mA IC, 200 mW, 130 MHz, SOT-23-3 package, with integrated 10 kOhm base and emitter-base resistors.","salesMarkdown":"## Pre-biased NPN in a SOT-23 — what the integrated resistors mean The Infineon BCR133E6433HTMA1 is an NPN pre-biased transistor in a PG-SOT23 surface-mount package. It integrates two 10 kOhm resistors — one in series with the base (R1) and one between base and emitter (R2) — eliminating the need for external bias components in low-side switching and driver applications. The transistor is rated for a collector-emitter breakdown voltage of 50 V and a continuous collector current of 100 mA, with a power dissipation ceiling of 200 mW. ## NRND status — plan your BOM transition For new designs, Infineon's current pre-biased transistor portfolio — parts sharing the same SOT-23 footprint and 10 kOhm resistor values — should be evaluated as a form-fit-function replacement. ## 200 mW power limit and thermal derating The 200 mW maximum power dissipation is the thermal ceiling for the SOT-23 package. In practice, ambient temperature derating applies — at 85 °C the allowable dissipation drops significantly, so the load current and duty cycle must be checked against the thermal resistance of the board. For continuous 100 mA collector current, the VCE(sat) of 300 mV at 10 mA gives a rough dissipation of 30 mW under saturation, leaving headroom; linear-mode operation at higher VCE will consume the budget quickly.","metaTitle":"Infineon BCR133E6433HTMA1 NPN Pre-Biased Transistor, 50 V","metaDescription":"Infineon BCR133E6433HTMA1 NPN pre-biased transistor in SOT-23, 50 V, 100 mA, 200 mW, with 10 kOhm resistors.","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); Cut Tape (CT)","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":"BCR133","Resistor - Base (R1)":"10 kOhms","Frequency - Transition":"130 MHz","Supplier Device Package":"PG-SOT23","Resistor - Emitter Base (R2)":"10 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":"30 @ 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/da5fc9ead9e2b22151fb962c98fc84f4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is BCR133E6433HTMA1 obsolete?","answer":"It is not fully discontinued, but Infineon recommends against using it in new designs. Existing production runs can still be supported through the supply chain."},{"question":"What are the exact resistor values R1 and R2 for BCR133?","answer":"Both the base resistor (R1) and the emitter-base resistor (R2) are 10 kOhms each."},{"question":"What is the replacement for BCR133E6433HTMA1?","answer":"Infineon does not list a single direct successor for the BCR133E6433HTMA1. For new designs, evaluate Infineon's current pre-biased NPN transistors in the SOT-23 package with 10 kOhm integrated resistors as a form-fit-function alternative. Contact our desk for cross-reference assistance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BCR133E6433HTMA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BCR133E6433HTMA1 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}}