Products
Normally Open SP7T-8T 18GHz Coaxial Switch
| Leader-mw | Introduction to Normally Open SP7T-8T 18GHz Coaxial Switch |
The Leader-MW Normally Open SP7T-8T-18GHz Coaxial Switch is a high-performance RF switching solution engineered for advanced signal routing in complex microwave and communication systems. As a Single Pole Seven Throw (SP7T) switch, it features one common input port and seven independent output channels, enabling versatile signal distribution across multiple paths in radar arrays, satellite communication networks, or multi-channel test setups. Designed for frequencies spanning DC–18 GHz, this switch supports ultra-wideband applications, including military radar, aerospace systems, 5G infrastructure, and high-frequency testing. Its normally open (NO) configuration ensures all signal paths remain disconnected by default, minimizing unintended signal leakage and enhancing system safety when idle.
| Leader-mw | specification |
| No. | Frequency(Ghz) | Insertion loss(dB) | Isolation(dB) | VSWR | Powercw(w) |
| 1 |
DC-6 |
0.3 |
70 |
1.3 |
80 |
| 2 |
6-12 |
0.4 |
60 |
1.4 |
60 |
| 3 |
12-18 |
0.5 |
55 |
1.5 |
50 |
| Operating Voltage/Coil Current |
| No. | Operating Voltage(V) |
I2 |
24 |
28 |
|||
| 1 | Coil Current(mA) | Normally open |
300 |
150 |
140 | ||
| No. |
TTL |
TTL Low (v) | TTL high (v) | ||||
| 2 |
0-0.3 |
3-5 |
1.4mA | ||||
| No. | Indicators | Withstand VoltageV (max) | Current capacity mA(max) | Resistance Ω (max) | |||
| 3 | 50 |
100 |
15 | ||||
Remarks:
1.Insertion loss Include Theoretical loss 0.46db 2.Power rating is for load vswr better than 1.20:1
| Leader-mw | Environmental Specifications |
| Switching Sequence: | Break before Make | Switching Time: | 15ms max |
| Storage temperature: | -55℃~85℃ | Mechanical Life Cycles: | 2 million cycles |
| Operating temperature: | -25℃~65℃(Standard)
-45℃ ~85℃(Extended1) -55℃~85℃(Extended2) |
RF Connectors: | SMA Female |
| Weight: | 145g | ||
| Impedance: | 50Ω | Mechanical Shock, Non-Operating: | 50G、1/2 Sine、11 ms |
| Vibration Operating: | 20-2000 Hz、10G RMS | Actuator Terminals: | D-SUB 15/26Pin Male |
| Leader-mw | Mechanical Specifications |
Outline Drawing:
All Dimensions in mm
Outline Tolerances ± 0.5(0.02)
Mounting Holes Tolerances ±0.2(0.008)
All Connectors: SMA-Female
| Leader-mw | Truth Table |
| Normally open Non TTL | ||||||
| Actuator Terminals | RF Connector | |||||
| D-SUB 15Pin Male | ||||||
| Pin No. | Define | SP7T | SP8T | SP5T | SP6T | |
| 1 | V1 | RF 1-0 | RF 1-0 | RF 1-0 | RF 1-0 | |
| 2 | V2 | RF 2-0 | RF 2-0 | RF 2-0 | RF 2-0 | |
| 3 | V3 | RF 3-0 | RF 3-0 | RF 3-0 | RF 3-0 | |
| 4 | V4 | RF 4-0 | RF 4-0 | RF 4-0 | RF 4-0 | |
| 5 | V5 | RF 5-0 | RF 5-0 | RF 5-0 | RF 5-0 | |
| 6 | V6 | RF 6-0 | RF 6-0 | - | RF 6-0 | |
| 7 | V7 | RF 7-0 | RF 7-0 | - | - | |
| 8 | V8 | -
-
Indicators |
RF 8-0 | - | RF 1-0 | RF 1-0 |
| 9 | GND | - | RF 2-0 | RF 2-0 | RF 2-0 | |
| 10 | Ind.1 | RF 1-0 | RF 1-0 | RF 3-0 | RF 3-0 | |
| 11 | Ind.2 | RF 2-0 | RF 2-0 | RF 4-0 | RF 4-0 | |
| 12 | Ind.3 | RF 3-0 | RF 3-0 | RF 5-0 | RF 5-0 | |
| 13 | Ind.4 | RF 4-0 | RF 4-0 | - | RF 6-0 | |
| 14 | Ind.5 | RF 5-0 | RF 5-0 | - | - | |
| 15 | Ind.6 | RF 6-0 | RF 6-0 | - | - | |
| 16 | Ind.7 | RF 7-0 | RF 7-0 | |||
| 17 | Ind.8 | - | RF 8-0 | |||
| 18 | Ind.com | - | - | |||
| 19 | VDC | - | - | |||
| 20~26 | N/A | - | - | |||
| Normally open TTL | ||||||
| Actuator Terminals | RF Connector | |||||
| D-SUB 15Pin Male | ||||||
| Pin No. | Define | SP7T | SP8T | SP5T | SP6T | |
| 1 | TTL | RF 1-0 | RF 1-0 | RF 1-0 | RF 1-0 | |
| 2 | TTL | RF 2-0 | RF 2-0 | RF 2-0 | RF 2-0 | |
| 3 | TTL | RF 3-0 | RF 3-0 | RF 3-0 | RF 3-0 | |
| 4 | TTL | RF 4-0 | RF 4-0 | RF 4-0 | RF 4-0 | |
| 5 | TTL | RF 5-0 | RF 5-0 | RF 5-0 | RF 5-0 | |
| 6 | TTL | RF 6-0 | RF 6-0 | - | RF 6-0 | |
| 7 | TTL | RF 7-0 | RF 7-0 | - | - | |
| 8 | TTL | - | RF 8-0 | - | - | |
| 9 | VDC | -
-
Indicators |
- | - | RF 1-0 | RF 1-0 |
| 10 | GND | - | RF 2-0 | RF 2-0 | RF 2-0 | |
| 11 | Ind.1 | RF 1-0 | RF 1-0 | RF 3-0 | RF 3-0 | |
| 12 | Ind.2 | RF 2-0 | RF 2-0 | RF 4-0 | RF 4-0 | |
| 13 | Ind.3 | RF 3-0 | RF 3-0 | RF 5-0 | RF 5-0 | |
| 14 | Ind.4 | RF 4-0 | RF 4-0 | - | RF 6-0 | |
| 15 | Ind.5 | RF 5-0 | RF 5-0 | - | - | |
| 16 | Ind.6 | RF 6-0 | RF 6-0 | |||
| 17 | Ind.7 | RF 7-0 | RF 7-0 | |||
| 18 | Ind.8 | - | RF 8-0 | |||
| 19 | Ind.com | - | - | |||
| 20~26 | N/A | - | - | |||
| Leader-mw | Product Selection |
