{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BCR 129L3 E6327","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BCR-129L3-E6327","canonicalUrl":"https://icboms.com/infineon/BCR-129L3-E6327","factsUrl":"https://icboms.com/api/mcp/products/BCR%20129L3%20E6327","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BCR 129L3 E6327, NPN - Pre-Biased, 50 V VCEO, 100 mA Ic, 150 MHz, 10 kOhm base resistor, 250 mW, SC-101 / SOT-883, PG-TSLP-3-4, Tape & Reel.","salesMarkdown":"## Pre-biased NPN in a SOT-883 — when board space is the constraint The Infineon BCR 129L3 E6327 is an NPN pre-biased transistor that integrates two bias resistors (10 kOhm base resistor R1) directly into the same die. This eliminates the two external resistors normally needed for a common-emitter switch stage, saving one placement and two passive components per channel. ## 100 mA and 50 V — where the load budget lands With a 100 mA Ic max and 50 V VCEO, this transistor handles typical low-side switching for small relays, optocoupler LEDs, and digital logic inputs. The 150 MHz transition frequency means it can pass a few MHz of switching without gain roll-off, though the pre-biased topology is not aimed at high-speed line driving. Saturation voltage is 300 mV at 500 µA base current and 10 mA collector current, which keeps dissipation low in the on-state. ## Package reality — PG-TSLP-3-4 The BCR 129L3 E6327 comes in a PG-TSLP-3-4 package, which is Infineon's leadless three-pin plastic package matching the SC-101 / SOT-883 outline. It is a tiny 0.6 mm pitch, leadless device intended for reflow soldering. The small footprint suits compact modules (wearables, sensor nodes, IoT endpoints) but demands careful stencil design and a good solder-paste volume to avoid head-in-pillow defects. No exposed pad — the 250 mW power dissipation is handled through the leads and the board copper. ## Lifecycle and supply posture For production builds this means no forced redesign from obsolescence risk in the near term.","metaTitle":"BCR 129L3 E6327 NPN Pre-Biased Transistor, 100 mA, 50 V","metaDescription":"BCR 129L3 E6327 NPN pre-biased transistor from Infineon. 100 mA collector current, 50 V VCEO, 150 MHz transition frequency. SC-101 / SOT-883 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Infineon Technologies","Series":"-","Package":"Tape & Reel (TR)","Power - Max":"250 mW","Mounting Type":"Surface Mount","Package / Case":"SC-101, SOT-883","Transistor Type":"NPN - Pre-Biased","lifecycle_stage":"eol_hot","Base Product Number":"BCR 129","Resistor - Base (R1)":"10 kOhms","Frequency - Transition":"150 MHz","Supplier Device Package":"PG-TSLP-3-4","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":"120 @ 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/a92257c86a5bb6c40bed85194af45817.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum collector current of BCR 129L3 E6327?","answer":"The maximum collector current (Ic) is 100 mA. The collector-emitter breakdown voltage is 50 V. These two ratings define the load-driving envelope — keep the switching load within these limits for reliable operation."},{"question":"Is BCR 129L3 E6327 RoHS compliant?","answer":"The BCR 129L3 E6327 is listed as a current-production part from Infineon, which typically ships RoHS-compliant and halogen-free. The specific RoHS status can be confirmed from the manufacturer's datasheet or the product label on the reel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BCR-129L3-E6327","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BCR-129L3-E6327 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}}