{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BBY40,235","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"BBY40235","canonicalUrl":"https://icboms.com/nxp/BBY40235","factsUrl":"https://icboms.com/api/mcp/products/BBY40%2C235","rawCanonicalId":null},"summary":{"shortDescription":"NXP BBY40,235 VHF varactor diode, single, 30 V peak reverse, 6pF at 25V/1MHz, capacitance ratio C3/C25=6.5, SOT-23 (TO-236AB) surface mount, -55 to 125°C.","salesMarkdown":"## VHF tuning diode — capacitance ratio and bias range The BBY40,235 is a single VHF varactor diode from NXP, designed for voltage-controlled tuning in VCOs, filters, and phase-locked loops up to the VHF band. Its headline parameter is the capacitance ratio C3/C25 of 6.5 — the capacitance at 3V reverse bias divided by the capacitance at 25V. That ratio defines the usable tuning range: a higher ratio means the oscillator can sweep a wider frequency span for a given control-voltage swing. At 25V reverse bias and 1MHz, the diode presents 6pF of junction capacitance. That is the minimum capacitance in the tuning curve, setting the upper frequency limit of the tank circuit. The peak reverse voltage rating of 30V gives a 5V headroom above the 25V measurement point, so the designer can safely bias at 25V continuous without approaching breakdown. ## Temperature range and package — where it fits The SOT-23 surface-mount package is a standard three-lead footprint shared across the BB series; the small body keeps parasitic inductance low for VHF circuits. ## Lifecycle and compliance — no LTB risk ROHS3 compliance is confirmed, which means the part meets the current EU restriction on hazardous substances without requiring an exemption review.","metaTitle":"BBY40,235 Varactor Diode, C3/C25=6.5, SOT-23","metaDescription":"NXP BBY40,235 VHF varactor diode, 30V peak reverse, 6pF at 25V/1MHz, capacitance ratio 6.5, SOT-23, -55 to 125°C. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Diode Type":"Single","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","lifecycle_stage":"eol_hot","Capacitance Ratio":"6.5","Capacitance @ Vr, F":"6pF @ 25V, 1MHz","Operating Temperature":"-55°C ~ 125°C (TJ)","Supplier Device Package":"SOT-23 (TO-236AB)","Capacitance Ratio Condition":"C3/C25","Voltage - Peak Reverse (Max)":"30 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.51","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.49000","currency":"USD"},{"qty":10,"price":"$0.38000","currency":"USD"},{"qty":100,"price":"$0.22770","currency":"USD"},{"qty":500,"price":"$0.21084","currency":"USD"},{"qty":1000,"price":"$0.14337","currency":"USD"},{"qty":2000,"price":"$0.13199","currency":"USD"},{"qty":5000,"price":"$0.12650","currency":"USD"},{"qty":10000,"price":"$0.11385","currency":"USD"},{"qty":30000,"price":"$0.11217","currency":"USD"},{"qty":50000,"price":"$0.10542","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/fe34672087baf5bfe84407df02ec7b9f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the capacitance of BBY40,235 at 25V and 1MHz?","answer":"At 25V reverse bias and 1MHz, the junction capacitance is 6pF. This is the minimum capacitance in the tuning curve and sets the upper frequency limit of the VCO or filter."},{"question":"What is the capacitance ratio C3/C25 for BBY40,235?","answer":"The capacitance ratio C3/C25 is 6.5. This means the capacitance at 3V reverse bias is 6.5 times the capacitance at 25V, defining the usable tuning range of the varactor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/BBY40235","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/BBY40235 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}}