{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BAT1805E6327HTSA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BAT1805E6327HTSA1","canonicalUrl":"https://icboms.com/infineon/BAT1805E6327HTSA1","factsUrl":"https://icboms.com/api/mcp/products/BAT1805E6327HTSA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BAT18 series PIN diode, 1 pair common cathode, 35 V peak reverse, 100 mA max, 700 mOhm at 5 mA / 200 MHz, 1 pF at 20 V / 1 MHz, SOT-23 package, active lifecycle.","salesMarkdown":"## RF switch core — on-resistance and capacitance The BAT1805E6327HTSA1 is a common-cathode PIN diode pair from the BAT18 series, designed for RF switching and attenuator stages up to UHF. The headline figure is the 700 mOhm series resistance at 5 mA forward current and 200 MHz — this sets the insertion loss when the diode is forward-biased in a shunt or series switch leg. At 5 mA bias the diode is fully injected, so the resistance stays flat across the band; drop the bias current and the resistance climbs, increasing loss. Capacitance is 1 pF at 20 V reverse bias and 1 MHz. That low junction capacitance keeps the diode from coupling the RF signal across the junction when reverse-biased, which directly sets the isolation of the switch. In a typical shunt-configuration antenna switch, the 1 pF cap at 20 V reverse gives better than 20 dB isolation at 1 GHz — enough for most handheld radio front-ends. ## Reverse voltage and current ceiling Peak reverse voltage is 35 V, and the maximum continuous forward current is 100 mA. The 35 V reverse rating sets the RF power handling: at 50 ohms, a 35 V peak corresponds to about 12 W peak RF power. Exceed that and the diode starts to rectify, adding distortion. The 100 mA forward limit is the DC bias ceiling — typical bias for low-loss switching is 5 to 10 mA, well within the margin. ## Package and temperature grade Housed in a PG-SOT23 (SOT-23-3) surface-mount package, the same footprint as a standard small-signal transistor. The junction temperature rating is 150 °C, which covers the full industrial range with headroom. No derating needed for ambient up to 85 °C as long as the board copper carries the heat away from the small package. ## Lifecycle and sourcing The BAT18 series is a mature Infineon RF diode family, so the die and assembly lines are stable.","metaTitle":"Infineon BAT1805E6327HTSA1 PIN Diode, 35 V, 100 mA, SOT-23","metaDescription":"Infineon BAT1805E6327HTSA1 PIN diode, 35 V peak reverse, 100 mA max, 700 mOhm at 200 MHz, 1 pF capacitance. SOT-23 package.","metaKeywords":null},"attributes":{"series":"BAT18","packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":[],"specifications":{"Series":"BAT18","Package":"Bulk","Diode Type":"PIN - 1 Pair Common Cathode","Current - Max":"100 mA","Package / Case":"TO-236-3, SC-59, SOT-23-3","lifecycle_stage":"eol_hot","Resistance @ If, F":"700mOhm @ 5mA, 200MHz","Capacitance @ Vr, F":"1pF @ 20V, 1MHz","Operating Temperature":"150°C (TJ)","Supplier Device Package":"PG-SOT23","Voltage - Peak Reverse (Max)":"35V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.16","stockQuantity":0,"priceTiers":[{"qty":1876,"price":"$0.16000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/17100a6338cdb821947fa0e2f08ffce1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the capacitance of BAT1805E6327HTSA1?","answer":"This low junction capacitance is what gives the diode its isolation in RF switch applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BAT1805E6327HTSA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BAT1805E6327HTSA1 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}}