Details, datasheet, quote on part number: VCR4N
DescriptionJFET Voltage Controlled Resistor
CompanyVishay Intertechnology
DatasheetDownload VCR4N datasheet
Find where to buy


Features, Applications

D Continuous Voltage-Controlled Resistance D High Off-Isolation D High Input Impedance
D Gain Ranging Capability/Wide Range Signal Attenuation D No Circuit Interaction D Simplified Drive
D Variable Gain Amplifiers D Voltage Controlled Oscillator D AGC

The VCR2N/4N/7N JFET voltage controlled resistors have an ac drain-source resistance that is controlled a dc bias voltage (VGS) applied to their high impedance gate terminal. Minimum rDS occurs when VGS V. As VGS approaches the pinch-off voltage, rDS rapidly increases. This series of junction FETs is intended for applications where the drain-source voltage is a low-level ac signal with no dc component. Key to device performance is the predictable rDS change versus VGS bias where:

These n-channel devices feature rDS(on) ranging from 8000 W. All packages are hermetically sealed and may be processed per MIL-S-19500 (see Military Information).

Gate-Source, Gate-Drain Voltage. 25 V Gate Current. 10 mA Power Dissipationb. 300 mW Operating Junction Temperature Range. to 175_C Storage Temperature. to 200_C Notes: = 25_C unless otherwise noted. b. Derate 2 mW/_C above 25_C. Lead Temperature (1/16" from case for 10 sec.). 300_C

Gate-Source Breakdown Voltage Gate-Source Cutoff Voltage Gate Reverse Current
Notes: a. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
30 VGS(off) ID Drain Current (mA) VGS ID Drain Current (mA) 3.5 V

A simple application of a FET VCR is shown in Figure 1, the circuit for a voltage divider attenuator. The output voltage is:

It is assumed that the output voltage is not so large as to push the VCR out of the linear resistance region, and that the rDS is not shunted by the load.


Related products with the same datasheet
Some Part number from the same manufacture Vishay Intertechnology
VCR7N JFET Voltage Controlled Resistor
VCS101 Uninsulated Element
VCS2516 Current Sensing Chip Resistor 1 Watt (4 Terminals)
VCS301 Highest Precision
VCS401 Uninsulated Element
VFC0805 Discrete High Precision Flip Chip Resistor
VFC2512 High Precision Flip Chip, Patents Pending (Industrialized Countries)
VFP-3 10 Watts (2/4 Leads)
VHD144 2 Resistor Hermetic
VHP-3 Hermetically Sealed
VHP100 Zero TCR Resistor
VKO Ceramic ac Capacitors, Class X1, 440VAC / Class Y2, 300VAC
VKP Ceramic ac Capacitors, Class X1, 760VAC / Class Y1, 500VAC
VMTA55 Axial Leads
VN0300L Enhancement-mode MOSFET Transistors

CCF6047K5FKR36 : Metal Film Resistors, Industrial, 1% Tolerance

PLT0603Z1301LBTS : 1.3K Ohm 0.15W Chip Resistor - Surface Mount; RES 1.30K OHM 0.01% 5PPM 0603SMD Specifications: Resistance (Ohms): 1.3K ; Power (Watts): 0.15W ; Tolerance: 0.01% ; Packaging: Tape & Reel (TR) ; Composition: Thin Film ; Temperature Coefficient: 5ppm/C ; Lead Free Status: Lead Free ; RoHS Status: RoHS Compliant

CPF25970R0BHE36 : RESISTOR, METAL FILM, 2 W, 0.1 %, 50 ppm, 5970 ohm, THROUGH HOLE MOUNT Specifications: Category / Application: General Use ; Technology / Construction: MetalFilm ; Mounting / Packaging: ThroughHole, Axial Leads, AXIAL LEADED ; Resistance Range: 5970 ohms ; Tolerance: 0.1000 +/- % ; Temperature Coefficient: 50 ±ppm/°C ; Power Rating: 2 watts (0.0027 HP) ; Operating DC

IRF620FPBF : 200 V, 0.8 ohm, N-CHANNEL, Si, POWER, MOSFET, TO-220AB Specifications: Polarity: N-Channel ; MOSFET Operating Mode: Enhancement ; V(BR)DSS: 200 volts ; rDS(on): 0.8000 ohms ; Number of units in IC: 1

LCD-016N002P-AGB-EP : LCD DOT MATRIX CHARACTER MODULE Specifications: Display Type: Dot Matrix

LCD-016N002V-AYK-ET : LCD DOT MATRIX CHARACTER MODULE Specifications: Display Type: Dot Matrix

LCD-016N002V-GGB-EC : LCD DOT MATRIX CHARACTER MODULE Specifications: Display Type: Dot Matrix

LCD-320H240B-RMI-TP3 : LCD DOT MATRIX GRAPHIC DISPLAY MODULE,BLUE Specifications: Display Type: Dot Matrix

VJ1206Y472MFBMT : CAPACITOR, CERAMIC, MULTILAYER, 100 V, X7R, 0.0047 uF, SURFACE MOUNT, 1206 Specifications: Configuration / Form Factor: Chip Capacitor ; Technology: Multilayer ; Applications: General Purpose ; Electrostatic Capacitors: Ceramic Composition ; RoHS Compliant: Yes ; Capacitance Range: 0.0047 microF ; Capacitance Tolerance: 20 (+/- %) ; WVDC: 100 volts ; Mounting Style: Surfac

0-C     D-L     M-R     S-Z