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Low Cost SPDT Switches

8762A

 

8762 Series Coaxial Switches


Agilent 8762A/B/C switches operate up to 26.5 GHz. They provide exceptional isolation of 90 dB to 18 GHz and switched terminations, so that all ports maintain a 50 Ω match. Internal loads are rated at 1 watt average (100 W peak, 10 μsec pulse width). Control voltage Options T15 and T24 are compatible with TTL/5V CMOS drive circuitry. Another model, Agilent 8762F, is designed for 75 Ω transmission lines, making it valuable for communication applications up to 4 GHz.

 

Specifications

 

Model 8762A 8762B 8762C 8762F
Features Break-before-make
Terminated
Current Interrupts
Impedance 50Ω
Frequency Range DC to 4 GHz DC to 18 GHz DC to 26.5 GHz DC to 4 GHz
Insertion Loss (dB) < 0.20 to 2 GHz
< 0.25 to 4 GHz
< 0.20 to 2 GHz
< 0.50 to 18 GHz
< 0.25 to 2 GHz
< 0.50 to 18 GHz
< 1.25 to 26.5 GHz
< 0.4
SWR < 1.1 to 2 GHz
< 1.2 to 4 GHz
< 1.1 to 2 GHz
< 1.2 to 12.4 GHz
< 1.3 to 18 GHz
< 1.15 to 2 GHz
< 1.25 to 12.4 GHz
< 1.4 to 18 GHz
< 1.8 to 26.5 GHz
< 1.3
Isolation (dB) > 100 to 4 GHz > 90 to 18 GHz > 90 to 18 GHz
> 50 to 26.5 GHz
> 100
Input Power
Average
Peak1
1 W
100 W (10 us max)
Switching Time (max) 30 ms
Insertion Loss Repeatability2 < 0.03 dB < 0.03 dB < 0.03 dB to 18 GHz
< 0.05 dB to 26.5 GHz
< 0.03 dB
Life (min) 1 million cycles
RF Connectors SMA (f) SMA (f) 3.5 mm (f) Min SMB (m) 3 (75 W)
DC Connectors Solder terminals
Supply Voltage Option: nominal (range)
011: 5 (4.5 to 7) VDC
015/T15: 15 (12 to 20) VDC
024/T24: 24 (20 to 32) VDC
Supply Current Option: nominal
011: 400 mA at 5 V
015/T15: 182 mA at 15 V
024/T24: 120 mA at 24 V

 

1. Not to exceed average power (non-switching)
2. Up to 1 million cycles measured at 25 °C
3. 75 Ω Mini SMB does not mate with 75 Ω SMB. See datasheet for more information.

 

8765 Series Switches

 

The 8765A/B/C/D are SPDT switches that offer outstanding performance and a life of 5 million cycles. This switch family is available in four models up to 40 GHz. Unlike the 8762 switches, they do not have internal RF loads or DC current interrupts. Coil voltage options cover the complete range from 5 VDC to 24 VDC. Since  the switches are magnetically latched, the coil voltage may be switched off after 15 ms.

 

The standard 8765 switch comes with ribbon cables and a standard printed circuit board with a 0.025-inch connector for convenient assembly. Optional solder terminals are available.

 

75Ω Switch

 

The 8765F brings a new standard of performance to 75 Ω coaxial components. Designed for ATE switching systems, the 8765F offers the performance being demanded by the cable television distribution equipment and communications equipment industries. It gives the ATE system designer the tools to design high performance, reliable switching interfaces.

 

The 8765F uses a mini 75 Ω SMB connector for the coaxial interface. The mini 75 Ω SMB connector is designed to terminate RG-179 75 Ω coaxial cable. The 8765F is designed to work in virtually any system by virtue of the variety of voltage options covering 4.5 V to 32 V DC available for activating the switch solenoids. While the standard configuration for the switch comes with a DC ribbon cable connector, solder terminals are also available as an option.

 

As with its 50 Ω counterparts, the 8765A/B/C/D, the 8765F was designed for maximum dependability and performance. It has been designed to operate within its specifications for over 5 million cycles.

 

Specifications

 

Model 8765A 8765B 8765C 8765D 8765F
Features Break-Before-Make
Unterminated
Without Current Interrupt
Impedance 50Ω
Frequency
Range
DC to 4 GHz DC to 20 GHz DC to 26.5 GHz DC to 40 GHz DC to 4 GHz
Insertion
Loss (dB)
0.2 + 0.025f 1 max 0.2 + 0.027f 1 max 0.2 + 0.023f 1 max
0.75 + 0.023f 1 max
(26.5 ≤ f ≤ 40)
< 0.18 to 1 GHz
< 0.24 to 2 GHz
< 0.40 to 4 GHz
SWR 110 - 2.25f 1 min > 100 to 1 GHz
> 90 to 4 GHz
Isolation (dB) 2 W
100 W (10 us max)
Input Power
Average
Peak2
2 W
100 W (10 us max)
Switching
Time (max)
15 ms
Insertion
Loss Repeatability3
< 0.03 dB
Life (min) 5 million cycles
RF Connectors SMA (f) SMA (f) 3.5 mm (f) 2.4 mm (f) Mini SMB (m) 4
DC Connectors Ribbon cable or solder terminals

Supply

Voltage

Option: nominal (range)
005/305: 5 (4.5 to 7) VDC
010/310: 10 (7 to 12) VDC
015/315: 15 (12 to 20) VDC
024/324: 24 (20 to 30) VDC

Supply

Current

Option: nominal
005/305: 385 mA at 5 V
010/310: 300 mA at 10 V
015/315: 200 mA at 15 V
024/324: 120 mA at 24 V

 

1. ƒ is frequency in GHz
2. Not to exceed average power (non-switching)
3. Up to 5 million cycles measured at 25 °C
4. 75 Ω Mini SMB does not mate with 75 Ω SMB. See datasheet for more information.