{"product_id":"bb910-to-92-varactor-diode-rf-tuning-vco-10pack","title":"BB910 TO-92 Varactor Diode — RF Tuning, VCO, FM Circuits (10-Pack)","description":"\u003ch2\u003eBB910 TO-92 Varactor Diode — Voltage-Controlled Capacitance for RF Circuits\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eBB910\u003c\/strong\u003e is a silicon varactor (variable capacitance) diode in a compact \u003cstrong\u003eTO-92 through-hole package\u003c\/strong\u003e, designed for voltage-controlled tuning in RF and high-frequency applications. As reverse bias voltage increases, junction capacitance decreases predictably — making it ideal for VCO, PLL, and FM tuner designs.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eBB910\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eTO-92 (DIP, Through-Hole)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Reverse Voltage (V\u003csub\u003eR\u003c\/sub\u003e)\u003c\/td\u003e\n\u003ctd\u003e30V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacitance @ 1V (C\u003csub\u003eT\u003c\/sub\u003e)\u003c\/td\u003e\n\u003ctd\u003e~10pF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacitance Ratio (C1V\/C8V)\u003c\/td\u003e\n\u003ctd\u003e≥3.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries Resistance (R\u003csub\u003eS\u003c\/sub\u003e)\u003c\/td\u003e\n\u003ctd\u003eLow (high Q factor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-55°C to +150°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew, Original\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eWhy Choose BB910?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide tuning range\u003c\/strong\u003e — capacitance ratio ≥3.5 enables broad frequency sweep\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow series resistance\u003c\/strong\u003e — high Q factor minimizes signal loss in RF tanks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTO-92 package\u003c\/strong\u003e — easy breadboard and PCB prototyping, no SMD rework needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew \u0026amp; original\u003c\/strong\u003e — not remarked or pulled parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-pack value\u003c\/strong\u003e — enough for multiple VCO or tuner stages\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVCO (Voltage-Controlled Oscillator)\u003c\/strong\u003e — FM transmitters, signal generators\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFM\/AM tuner circuits\u003c\/strong\u003e — electronic channel selection replacing mechanical capacitors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePLL (Phase-Locked Loop)\u003c\/strong\u003e — frequency synthesis and clock recovery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAFC (Automatic Frequency Control)\u003c\/strong\u003e — receiver stabilization\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParametric amplifiers\u003c\/strong\u003e — low-noise RF amplification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter tuning\u003c\/strong\u003e — voltage-adjustable bandpass filters\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eCompatible With\u003c\/h3\u003e\u003cp\u003eDrop-in or equivalent replacement for \u003cstrong\u003eBB105, BB109, BB204, BB304, BB405, BB505\u003c\/strong\u003e in many VCO and tuner designs. Verify capacitance curve against your schematic before substitution.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the capacitance at 4V reverse bias?\u003c\/strong\u003e\u003cbr\u003eA: Typically ~5–6pF for BB910. Refer to the datasheet C-V curve for precise values at your operating voltage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can BB910 be used at VHF\/UHF frequencies?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The low series resistance and small junction capacitance make it suitable for VHF (30–300MHz) and lower UHF applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is this RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eA: Yes, lead-free TO-92 package.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e10× BB910 TO-92 Varactor Diode (new, original)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991471313131,"sku":"\u003cnone\u003e","price":4.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/bb910-to92-varactor-diode.webp?v=1761633755","url":"https:\/\/keszoox.com\/products\/bb910-to-92-varactor-diode-rf-tuning-vco-10pack","provider":"Keszoox","version":"1.0","type":"link"}