{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BCR135WE6327BTSA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BCR135WE6327BTSA1","canonicalUrl":"https://icboms.com/infineon/BCR135WE6327BTSA1","factsUrl":"https://icboms.com/api/mcp/products/BCR135WE6327BTSA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BCR135WE6327BTSA1 NPN pre-biased transistor, 50 V collector-emitter breakdown, 100 mA collector current, 150 MHz transition frequency, SC-70 SOT-323 package, 250 mW power dissipation.","salesMarkdown":"## Pre-biased NPN in a small SC-70 package The Infineon BCR135WE6327BTSA1 is an NPN pre-biased transistor in a surface-mount SC-70 (SOT-323) package. It integrates a 10 kΩ base resistor (R1) and a 47 kΩ emitter-base resistor (R2), so the switching threshold is set without external bias components — a BOM simplification for digital interface and load-switch roles where the base drive comes directly from a logic output or open-collector driver. Rated for a 50 V collector-emitter breakdown and 100 mA continuous collector current, with a transition frequency of 150 MHz, it suits low-to-mid speed switching in industrial control, relay drivers, and signal-level translation up to about 50 V rail. ## Obsolete — what that means for sourcing The BCR135WE6327BTSA1 carries an obsolete product status. Infineon no longer manufactures this exact variant, so the primary channel for procurement is independent distribution — parts are sourced from surplus inventory, overstock, or verified broker networks. For a production BOM that needs a drop-in replacement, the base product number BCR135 covers several package and resistor-configuration variants; the closest functional match within the same family shares the same 10 kΩ / 47 kΩ resistor divider and SC-70 footprint, but the exact suffix should be verified against the original design's electrical and thermal requirements. ## 250 mW power ceiling in a small footprint Maximum power dissipation is 250 mW — a typical limit for the SC-70 package without a heatsink. In continuous operation, the collector current and VCE(sat) product must stay within this budget; at 100 mA and 300 mV saturation the dissipation is 30 mW, leaving ample margin, but a load that holds the transistor in the linear region at higher VCE will quickly reach the ceiling.","metaTitle":"Infineon BCR135WE6327BTSA1 NPN Pre-Biased Transistor, 50 V","metaDescription":"Infineon BCR135WE6327BTSA1 NPN pre-biased transistor, 50 V VCEO, 100 mA Ic, 150 MHz fT, SC-70 SOT-323 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":"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":"BCR135","Resistor - Base (R1)":"10 kOhms","Frequency - Transition":"150 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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/393aee626b2da6d96af91aaeea0af3f8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is BCR135WE6327BTSA1 obsolete?","answer":"Yes, the product status is Obsolete. Infineon no longer produces this exact variant; procurement goes through surplus and broker channels."},{"question":"What package is BCR135WE6327BTSA1?","answer":"It comes in an SC-70 (SOT-323) surface-mount package, with the supplier device package designation PG-SOT323."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BCR135WE6327BTSA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BCR135WE6327BTSA1 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}}