{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BAS40-05E6327","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BAS40-05E6327","canonicalUrl":"https://icboms.com/infineon/BAS40-05E6327","factsUrl":"https://icboms.com/api/mcp/products/BAS40-05E6327","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BAS40-05E6327 Schottky diode, Small Signal =< 200mA (Io), Any Speed, 1 Pair Common Cathode, 40 V Vr(max), 120 mA Io per diode, 1 V Vf @ 40 mA, 1 µA leakage @ 30 V, 150°C junction, Surface Mount, SOT-23-3, PG-SOT23-3-11, Bulk.","salesMarkdown":"## 40 V Schottky in a common-cathode pair — what it buys you The Infineon BAS40-05E6327 is a dual Schottky diode in a common-cathode configuration, housed in a standard SOT-23-3 surface-mount package. This part is designed for small-signal switching and protection roles — think OR-ing diodes, steering diodes, or low-current rectification in power management and signal conditioning circuits. The 150°C junction temperature rating gives it headroom for warm environments like a PSU or a motor drive board. ## 120 mA per diode — sizing the load budget Each diode in the pair handles 120 mA DC continuous. That is the number to check against your worst-case load — if your circuit pulls 100 mA through one leg, you have 20 mA of margin. The forward drop of 1 V at 40 mA gives you a rough power dissipation estimate: at 100 mA the drop will be higher, so budget the junction temperature rise against the 150°C max. For a typical 5 V rail OR-ing application, this part works cleanly; for a 12 V rail with higher current, you would want a larger Schottky. ## Common-cathode topology — the wiring decision The 1 Pair Common Cathode arrangement means the cathodes of both diodes are tied together internally, with the two anodes brought out separately. That is the footprint for a dual-diode OR-ing circuit or a voltage-clamp pair. If your board expects a series pair or a common-anode configuration, this is not the part — look at the BAS40-06 (common anode) or BAS40-04 (series pair) instead. No need to stockpile or hunt for a second source yet.","metaTitle":"Infineon BAS40-05E6327 Schottky Diode, 40 V, 120 mA","metaDescription":"Infineon BAS40-05E6327 Schottky diode, 40 V reverse voltage, 120 mA average rectified current per diode, common-cathode pair in SOT-23-3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Infineon Technologies","Speed":"Small Signal =< 200mA (Io), Any Speed","Series":"-","Package":"Bulk","Diode Type":"Schottky","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Product Status":"Active","lifecycle_stage":"eol_hot","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"PG-SOT23-3-11","Current - Reverse Leakage @ Vr":"1 µA @ 30 V","Voltage - DC Reverse (Vr) (Max)":"40 V","Operating Temperature - Junction":"150°C","Voltage - Forward (Vf) (Max) @ If":"1 V @ 40 mA","Current - Average Rectified (Io) (per Diode)":"120mA (DC)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4200","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BAS40-05E6327/alternatives.json"},"ai":{"faq":[{"question":"Is BAS40-05E6327 RoHS compliant?","answer":"The evidence does not explicitly state RoHS compliance for this order code. Verify with the manufacturer's datasheet or the supplier at quote time."},{"question":"What is the equivalent of BAS40-05E6327?","answer":"The BAS40-05E6327 is the standard Infineon order code for the BAS40-05 Schottky diode in a SOT-23-3 package. The base part number BAS40-05 describes the same common-cathode dual diode; the E6327 suffix indicates the specific packaging and reel configuration. A pin-compatible alternative from another manufacturer would be any common-cathode dual Schottky in SOT-23-3 rated for 40 V and 120 mA, such as the BAT54 series (though the BAT54 has a lower 30 V rating)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BAS40-05E6327","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BAS40-05E6327 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}