China 1.8 GHz SJ-5B/5BS Variable Step Attenuators factory and manufacturers | Qianjin

Short Description:

1.8 GHz SJ-5B/5BS Variable Step Attenuators produce linear loss through the full CATV forward and reverse frequency band to support Docsis 3.1 standard. The attenuators are used to balance and adjust amplifier signal levels as needed. The variable step loss produced (dB) is between 0 to 5, 10, 15, 20 dB based on the steps (11 step). The attenuators are designed for circuits up to 1.8 GHz. The attenuators can also be used as equalizers.


Product Detail

Product Tags

1.8 GHz SJ-5B/5BS Variable Step Attenuators produce linear loss through the full CATV forward and reverse frequency band to support Docsis 3.1 standard. The attenuators are used to balance and adjust amplifier signal levels as needed. The variable step loss produced (dB) is between 0 to 5, 10, 15, 20 dB based on the steps (11 step). The attenuators are designed for circuits up to 1.8 GHz. The attenuators can also be used as equalizers.

Reel packaging is also available for easy SMT assembly (SJ-5BS).

Specifications

Item

Units

Value

Attenuation Values

dB

0 – 5

0 – 10

0 – 15

0 – 20

Step Values

dB

0.5

1.0

1.5

2.0

Frequency Range

MHz

5 - 1800 

Insertion Loss

dB

≤ 0.5

Flatness

dB

± 0.3

Return Loss

dB

≥ 18.0 @ 5-1200MHz

≥ 16.0 @ 1201-1800MHz

Impedance

75

Note: Unless otherwise noted, all specifications reflect typical performance and are referenced to 68°F (20°C). Specifications are based upon measurements made in accordance with SCTE/ANSI standards (where applicable), using standard frequency assignments.

Dimensions

SJ-5B

 SJ-5B

Size

Shaft diameter Ф (mm)

Shaft length L1 (mm)

Pin length L2 (mm)

5

0 and 10

10

SJ-5BS SMD Footprint

 SJ-5BS SMD Footprint

Size

Shaft diameter Ф (mm)

Shaft length L1 (mm)

5

PCB Requirement for SJ-5BS

 PCB Requirement for SJ-5BS

Ordering Information

Bulk Package Type:

Description

Part Number

 SJ-5B-0.5dB Step, Value 0 – 5 dB, 0mm knob 9903000260
 SJ-5B-1.0dB Step, Value 0 – 10 dB, 0mm knob 9903000261
 SJ-5B-1.5dB Step, Value 0 – 15 dB, 0mm knob 9903000262
 SJ-5B-2.0dB Step, Value 0 – 20 dB, 0mm knob 9903000263
 SJ-5B-0.5dB Step, Value 0 – 5 dB, 10mm knob 9903000264
 SJ-5B-1.0dB Step, Value 0 – 10 dB, 10mm knob 9903000265
 SJ-5B-1.5dB Step, Value 0 – 15 dB, 10mm knob 9903000266
 SJ-5B-2.0dB Step, Value 0 – 20 dB, 10mm knob 9903000267

 Reel Package Type: 500 Pieces Reel

Description

Part Number

 SJ-5BS-0.5dB Step, Value 0 – 5 dB, 0mm knob 9903000268
SJ-5BS-1dB Step, Value 0 – 10 dB, 0mm knob 9903000269
SJ-5BS-1.5dB Step, Value 0 – 15 dB, 0mm knob 9903000270
SJ-5BS-2dB Step, Value 0 – 20 dB, 0mm knob 9903000271

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