China China wholesale Cable Attenuator - SQDF-B 1.2 GHz SMD Diplex Filter – Qianjin factory and manufacturers | Qianjin

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China China wholesale Cable Attenuator - SQDF-B 1.2 GHz SMD Diplex Filter – Qianjin factory and manufacturers | Qianjin Detail:

SQDF-B 1.2GHz Diplex Filter is a complete diplex filter with 75 Ohm at all ports. This filter isolates the forward and reverse bands so that the two signals can share the same coax band width. The reverse path frequencies pass through the low-pass filter which has a cutoff frequency of 65/85/204 MHz, and the forward path frequencies pass through the high-pass filter which has a cutoff frequency of 87/105/258 MHz. The high-pass filter works up to 1.2 GHz. Each of these filters, together with additional filtering provided on the amplifier motherboards, has enough isolation to prevent the amplifier from oscillating. It also provides enough isolation so that there is no interference between the forward and reverse path.

These accessories can be used for nodes, amplifiers, line extenders, etc.

Specifications

Item

Units

65 / 87

85 / 105

204 / 258

FrequencyRange MHz

5 – 65 / 87 – 1218

5 – 85 / 105 – 1218

5 – 204 / 258 – 1218

Insertion Loss dB

0.2 (Min)

@5-65M@87-1218M

0.2 (Min)

@5-85M@105-1218M

0.2 (Min)

@5-204M@258-1218M

1.5 (Max)

1.5 (Max)

1.5 (Max)

Isolation dB

40

@5-65M

38

@5-85M

30

@5-130M

35

@65-87M

26

@85-105M

26

@130-258M

38

@87-1002M

43

@105-1002M

38

@258-1002M

30

@1002-1218M

40

@1002-1218M

35

@1002-1218M
Return Loss dB

20

@5-65M@87-1002M

20

@5-85M@105-1002M

20

@5-204M@258-1002M

17

@1002-1218M

17

@1002-1218M

17

@1002-1218M
Impedance Ω

75

 Note: Unless otherwise noted, all specifications reflect typical performance and are referenced to 68°F (20°C

Pinning:

PIN

1

2

3

4

5

6

7

8

Definition

High

Ground

Ground

Low

Ground

Ground

Common

Ground

Ordering information

Description

Part Number

 SQDF-B 1.2 GHz 65/87 SMD Diplex Filter

9909000100

 SQDF-B 1.2 GHz 65/87 (M) SMD Diplex Filter

9909000200

 SQDF-B 1.2 GHz 85/105 SMD Diplex Filter

9909000101

 SQDF-B 1.2 GHz 85/105 (M) SMD Diplex Filter

9909000201

 SQDF-B 1.2 GHz 204/258 SMD Diplex Filter

9909000102

 SQDF-B 1.2 GHz 204/258 (M) SMD Diplex Filter

9909000202


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China China wholesale Cable Attenuator - SQDF-B 1.2 GHz SMD Diplex Filter  – Qianjin factory and manufacturers | Qianjin detail pictures


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