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Coaxial switch, DC~40GHz, SP7T~SP8T, QMS8K series

Coaxial switch, DC~40GHz, SP7T~SP8T, QMS8K series

An RF coaxial switch is a device used in RF and microwave communication systems to establish or switch connections between different coaxial cable paths. It allows for the selection of a specific input or output path from multiple options, depending on the desired configuration.

The following characteristics:
1. Quick switching: RF coaxial switches can quickly switch between different RF signal paths, and the switching time is generally at the millisecond level.
2. Low insertion loss: The switch structure is compact, with low signal loss, which can ensure the transmission of signal quality.
3. High isolation: The switch has high isolation, which can effectively reduce mutual interference between signals.
4. High reliability: The RF coaxial switch adopts high-quality materials and high-precision manufacturing technology, which has high reliability and stability.

QMS8K-4

Qualwaves Inc. supplies RF coaxial switches with a working frequency range of DC~110GHz and a lifespan of up to 2 million cycles.
This article introduces 2.92mm coaxial switches for DC~40GHz and SP7T~SP8T.

1.Electrical Characteristics

Frequency: DC~40GHz
Impedance: 50Ω
Power: Please refer to the following power curve chart
(Based on an ambient temperature of 20°C)

QMS8K series

Frequency Rang (GHz)

Insertion Loss (dB)

Isolation (dB)

VSWR

DC~12

0.5

70

1.4

12~18

0.6

60

1.5

18~26.5

0.8

55

1.7

26.5~40

1.1

50

2.0

Voltage and current

Voltage (V)

+12

+24

+28

Current (mA)

300

 150

140

 

2.Mechanical Properties

Size *1 :41*41*53mm
1.614*1.614*2.087in
Switching Sequence: Break before Make
Switching Time: 15mS max.
Operation Life: 2M Cycles
Vibration (operating): 20-2000Hz, 10G RMS
Mechanical Shock (non-operating): 30G, 1/2sine, 11mS
RF Connectors: 2.92mm Female
Power Supply & Control Interface Connectors: D-Sub 15 Male/D-Sub 26 Male
Mounting: 4-Φ4.1mm through-hole
[1] Excludeconnectors.

3.Environment

Temperature: -25~65℃
Extended temperature: -45~+85℃

4.Outline Drawings

位图1

Unit: mm [in]
Tolerance: ±0.5mm [±0.02in]

5.Pin Numbering

Normally Open

Pin Function Pin Function
1~8 V1~V8 18 Indicator (COM)
9 COM 19 VDC
10~17 Indicator (1~8) 20~26 NC

Normally Open & TTL

Pin Function Pin Function
1~8 A1~A8 11~18 Indicator (1~8)
9 VDC 19 Indicator (COM)
10 COM 20~25 NC

 

6.Driving Schematic Diagram

位图

7.How To Order

QMSVK-F-WXYZ
V: 7~8 (SP7T~SP8T)
F: Frequency in GHz
W: Actuator Type. Normally Open: 3.
X: Voltage. +12V: E, +24V: K, +28V: M.
Y: Power Interface. D-Sub: 1.
Z: Additional Options.

Additional Options
TTL: T
Indicators: I Extended
Temperature: Z
Positive Common
Waterproof Sealing Type

Examples:
To order a SP8T switch, DC~40GHz, Normally Open, +12V, D-Sub, TTL,
Indicators, specify QMS8K-40-3E1TI.

Customization is available upon request.
If you have any questions, please feel free to call for consultation.


Post time: Dec-06-2024