AM/FM Radio Thin Film Variable Capacitor 270P Double +20PFM Double CBM-443BF

The CBM-443BF is a high performance variable capacitor for tuning circuits in FM and AM broadcast radios.  are available for purchase at Autoecuchips.com.It features high insulation resistance, low moving piece contact resistance and high withstand voltage, making it an ideal tuning solution. If you need further technical support or purchasing advice, you can contact us at whatapp+8618718921345 or consult the datasheet.


Technical specifications

- Mounting type: 3 (Refer to the datasheet for specific mounting type).

- Overall dimensions: 20 x 20 x 19.2 mm.

- Coupling number: AM-2.

- Maximum variable capacity: 266×2 pF.

- Minimum capacity: 4.5±1.5 pF.

- Capacity tolerance: ± (1pF+1.5%).


Technical Characteristics

- Insulation resistance:

- AM:≥500 MΩ (1MHz,50pF).

- FM:≥250 MΩ (100MHz,10pF).

- Contact resistance of moving piece: ≤10 MΩ.

- Withstanding Voltage:≥100 V.D.C.

- Q value: ≥500.

- Rotating torque: ≥200 gf.cm.

- Stop end torque: 50400 kgf.cm.

- Trimming increment: ≥5 pF.

- Direction of rotation: Counterclockwise rotation is the direction of capacity increase.

- Angle of rotation: Not specified, refer to data sheet.


Capacitance curve

 Turning angle (%) Capacitance (pF)     
 100                           266.0            
 90                             224.5            
 80                             180.6            
 75                            159.6            
 70                            139.1            
 60                            101.1            
 50                            69.7             
 40                            45.2             
 30                            27.1             
 25                            20.1             
 20                            14.1             
 10                            4.6              
 3                               0                




External Dimensions

- Mounting screw hole type: 20 x 20 x 19.2 mm.

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Product Description:


1.The picture only supplies the reference It may not be the exact one as in our stock because of difr NO.

2.We will ship the items within 3 working days after the payment is reached.

3.When the parts arrive at your local customs, if the parts are charged with customs duties, we are not responsible for any customs duties or import taxes.


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We offer a warranty on all items that we sold. Item will be tested before ship, it will be in good condition, if there are some problems with the item, feel free to contact us.

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