DB1-1 series
75 Ohm 2.6 GHz DC Block
Mini Size (12.5x30mm)
Up to 2.6 GHz, 1 kV
Low Insertion Loss
Excellent Return Loss
Brass Tubes Hosing
Precision Connector Thread
Excellent Mechanical Structure
Exquisite Plating Quality
Good Weather Resistance
Item DB1 - 126W DB1 - 126 DB1 - 110W DB1 - 110
  Waterproof Yes No Yes No
  Frequency Range 5 - 2600MHz 5 - 1000MHz
  Impedance 75 ohm
  Insertion Loss 0.2dB (typ) / 1.2dB (max) 0.2dB (typ) / 0.8dB (max)
  Return Loss 20dB (typ) / 10dB (min)
  Voltage Withstanding DC 100V (max)
  Dimensions 12.5(¢) x 30 mm
  Net Weight 12g
 * Specifications may be change depending on the model or customer's requirement.

DC Blocks are often used in CATV or satellite receiving systems to block DC current and protect downstream equipment.

Important criteria to judge the quality of a DC Block are insertion loss, return loss and voltage withstanding.

A low insertion loss is important to ensure minimum attenuation of the signal caused by inserting the DC Block. A high return loss ensures a good impedance match and keeps the signal free of unwanted reflection interference. A high voltage withstanding is necessary to guarantee a better protection of the downstream equipment.

Soontai's DB1 series DC Block embodies excellent performance in all three above mentioned criteria.  At the same time it is mini-size with dimensions of only 12.5 x 30 mm. The housing incorporates a hexagon-nut shape for easy installation with a spanner.

Our DC Block is also suitable for other 75 Ohm systems and testing equipment.

Model Pass Band DC Withstanding Waterproof
 DB1 - 110 5 - 1000 MHz 100 V NO
 DB1 - 110W 5 - 1000 MHz 100 V YES
 DB1 - 1010 5 - 1000 MHz 1000 V NO
 DB1 - 1010W 5 - 1000 MHz 1000 V YES
 DB1 - 126 5 - 2600 MHz 100 V NO
 DB1 - 126W 5 - 2600 MHz 100 V YES
 DB1 - 1026 5 - 2600 MHz 1000 V NO
 DB1 - 1026W 5 - 2600 MHz 1000 V YES