- Product Details
- {{item.text}}
Quick Details
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Product name:
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Variable Attenuator
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Attenuation Range (dB):
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0-20dB
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Applicable:
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TV amplifiers
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Impedance:
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75Ω
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Operating frequency (MHz):
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0 ~ 1000MHz
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Color:
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Blue
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Package:
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1pcs/bag
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Insertion Loss (dB):
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0.5dB
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Case color:
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Blue ,Black
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Rotation length:
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2, 3, 5, 8, 18, 24 mm
Quick Details
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Brand Name:
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QD
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Model Number:
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QD-SJ-B
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Place of Origin:
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China
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Product name:
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Variable Attenuator
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Attenuation Range (dB):
-
0-20dB
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Applicable:
-
TV amplifiers
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Impedance:
-
75Ω
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Operating frequency (MHz):
-
0 ~ 1000MHz
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Color:
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Blue
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Package:
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1pcs/bag
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Insertion Loss (dB):
-
0.5dB
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Case color:
-
Blue ,Black
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Rotation length:
-
2, 3, 5, 8, 18, 24 mm
Product Description
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Specification:
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Attenuation range（dB):
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0-20dB
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impedance（Ω）：
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75Ω
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Insertion loss(dB)：
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0.5dB
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Operating frequency（MHz):
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0～1000MHZ
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Frequency response：
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≤±0.3dB
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reflection loss(dB)：
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≥17Db
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Case color:
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Blue , Black
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Rotation length:
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2, 3, 5, 8, 18, 24 mm
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Rotary handle color:
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Light blue,Dark blue, Red
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Product Paramenters
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1.Electrical performance
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NO.
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Item
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Qualification
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Specification
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1.1
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Impedance matching value
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Output impedance / input impedance matching
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75Ω
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1.2
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Reflection loss
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>300MHz, >550MHz, >860MHz
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>18, >16, >14
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1.3
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Maximum attenuation
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Counterclockwise to bottom measurement
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20dB±2dB 10dB±2dB
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1.4
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Minimum attenuation
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Measured clockwise to the bottom
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<0.5dB
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2.Mechanical performance
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NO.
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Item
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Qualification
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Specification
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2.1
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Full revolution
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Counterclockwise bottom position, turn clockwise to the bottom, the total number of revolutions of the shaft
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3.5±0.5(turns),6.0±0.5(turns)
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2.2
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Rotary torque
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Rotation speed 60 degrees / sec
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Below 50gf-cm(Max)
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2.3
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Axis rotation strength
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Measured clockwise to the bottom
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Above 800gf-cm(Max)
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2.4
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Terminal strength
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Add 500gf-cm to the terminal, 100 5 seconds
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No obvious looseness and poor contact
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2.5
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Solder pot heat resistance
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Temperature below 300 degrees, within 3 seconds
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No obvious looseness and poor contact
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3.Durability
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NO.
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Item
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Qualification
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Specification
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3.1
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Swing life
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Go back and forth more than 200 times
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