{"product_id":"156138","title":"VCR4N","description":"\u003cp\u003eN-channel Junction Field-Effect Transistor (JFET) designed specifically to operate as a Voltage-Controlled Resistor (VCR). Unlike standard JFETs optimized for amplification or switching, this device is engineered to provide a highly predictable and linear drain-source resistance (\\(r_{DS}\\)) that varies seamlessly according to the applied gate-source bias voltage - The primary characteristics of the component include:Drain-Source ON Resistance (\\(r_{DS(on)}\\)): 200 Ω minimum to 600 Ω maximum (measured at \\(V_{GS} = 0\\text{V}\\), \\(I_D = 0\\text{A}\\)).Gate-Source Cutoff Voltage (\\(V_{GS(off)}\\)): -3.5V to -7.0V.Gate-Source Breakdown Voltage (\\(V_{(BR)GSS}\\)): -15V minimum (some datasheets list absolute maximum limits up to -25V).Continuous Power Dissipation (\\(P_{D}\\)): 300 mW at \\(T_A = 25^\\circ\\text{C}\\).Packaging: Standard hermetically sealed through-hole metal can package (TO-72 \/ TO-206AF), with 3 pins configured as: Pin 1 (Source), Pin 2 (Drain), and Pin 3 (Gate \u0026amp; Case Connection).Primary ApplicationsThis device family is specifically intended for circuits where the drain-source voltage is a low-level AC signal with no DC component, preventing distortion in the resistive region. It is commonly implemented in:Small-Signal Attenuators: Creating dynamic, voltage-controlled voltage dividers.Automatic Gain Control (AGC): Controlling amplifier feedback loops and audio levelers.Tunable Filters: Altering the RC time constants of active filters dynamically via control voltage.Oscillator Amplitude Stabilization: Regulating output levels in Wien-bridge oscillators\u003c\/p\u003e","brand":"SILICONIX","offers":[{"title":"Default Title","offer_id":45789298982965,"sku":null,"price":11.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0219\/7936\/5440\/files\/AP1GczP9FNuO8fx2x-aarVJmx25Ow2_gz5A0Ygmp96WksnzvGOawCWoGZ1nD6BGRAUOUK2M5At-ePa5tbghCGkWk0pZJ_iINjomYLUD1Ai2xCOj_3mKATzKnfDXAIBtHYgoSRVN_4GHyKb8poXPhb8n5_W40PA_w1784-h1784-s-no-gm.jpg?v=1784676650","url":"https:\/\/greenbrookonline.com\/products\/156138","provider":"Green Brook Online","version":"1.0","type":"link"}