{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BCR 148W H6433","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BCR-148W-H6433","canonicalUrl":"https://icboms.com/infineon/BCR-148W-H6433","factsUrl":"https://icboms.com/api/mcp/products/BCR%20148W%20H6433","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BCR 148W H6433 NPN pre-biased digital transistor, 100 mA Ic, 50 V Vce, 47 kOhm built-in base and emitter-base resistors, 100 MHz fT, SC-70/SOT-323 package, Tape & Reel.","salesMarkdown":"## Pre-biased NPN in a tiny SOT-323 — what it does The Infineon BCR 148W H6433 is an NPN pre-biased digital transistor in a PG-SOT323 package (SC-70 equivalent). It integrates two 47 kOhm resistors — one in series with the base, one between base and emitter — so the transistor switches on with a logic-level drive and no external bias network. The collector is rated for 100 mA continuous and the Vce breakdown sits at 50 V, covering 5 V and 12 V logic-level loads, relay coils, and small-signal switching in industrial and consumer boards. Transition frequency is 100 MHz, fast enough for low-speed PWM and serial data gating up to a few megahertz. ## Obsolete — sourcing reality Infineon lists the BCR 148W H6433 as obsolete. If the design can tolerate a different base-resistor ratio, the broader BCR 148 family (base product number BCR 148) includes active variants worth evaluating for new builds. ## Built-in resistors shrink the BOM With R1 and R2 both at 47 kOhms, the BCR 148W H6433 saturates at 300 mV typical with 500 µA base drive and 10 mA collector load. The minimum DC current gain is 70 at 5 mA, 5 V. The 100 nA collector cutoff keeps off-state leakage negligible. The pre-biased construction saves two resistors per transistor and shrinks the placement footprint — useful in dense mixed-signal boards where every 0402 slot matters.","metaTitle":"Infineon BCR 148W H6433 NPN Pre-Biased Transistor, 100 mA","metaDescription":"Infineon BCR 148W H6433 NPN pre-biased transistor in SC-70/SOT-323. 100 mA max collector current, 50 V Vce, 100 MHz transition frequency.","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":"250 mW","Mounting Type":"Surface Mount","Package / Case":"SC-70, SOT-323","Product Status":"Obsolete","Transistor Type":"NPN - Pre-Biased","lifecycle_stage":"eol_hot","Base Product Number":"BCR 148","Resistor - Base (R1)":"47 kOhms","Frequency - Transition":"100 MHz","Supplier Device Package":"PG-SOT323","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":"$0.0506","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/48b524a21f70ba87148fe966031e06a7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy BCR 148W H6433?","answer":"We can supply it against an RFQ — submit a request and we will confirm availability and current pricing at quote time."},{"question":"Is BCR 148W H6433 obsolete?","answer":"Yes, Infineon has marked the BCR 148W H6433 as obsolete. There is no official replacement order code; the part is available through surplus and new-old-stock channels."},{"question":"What is the maximum collector current of BCR 148W H6433?","answer":"The maximum continuous collector current is 100 mA, with a Vce breakdown of 50 V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BCR-148W-H6433","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BCR-148W-H6433 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}}