Cobham Signal & Control Solutions

Cobham Signal & Control Solutions is a leading supplier of high performance solid-state RFMW components and subsystems.

Single-Pole, Single-Throw Switches

Cobham Signal & Control Solutions - Single-Pole, Single-Throw Switches

The S1 series of single pole, single throw PIN diode switches span the frequency range of 10MHz to 18GHz and are available with absorptive or reflective inputs. The switches are available in a wide variety of standard frequency ranges from cost-effective narrowband to high-performance broadband.

Each switch incorporates a TTL-compatible driver for convenient system integration and operates from +5V and -12V to -18V DC power supplies. All switches incorporate DC blocks at the RF ports. Standard screened switches incorporate epoxy sealed lids and undergo a stringent yet cost effective screening cycle.

The switches are also available with hermetic seal and high-rel screening for military and aerospace applications.

Applications:

  • EW Systems
  • Communications Systems
  • Electronic Simulators
  • Modulators
  • Test Equipment

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Absorptive / Reflective Switches
Frequency
Range
(GHz)
Part Number

Absorptive/Reflective
Insertion Loss
(dB max)

Absorptive/Reflective
VSWR
(max)

Absorptive/Reflective
Isolation
(dB min)

Absorptive/Reflective
Switching Speed
(nsec max)
MAX RF
(W CW)
0.01 - 0.1 S1H1 / S1H1R 0.9/0.8 1.5 80/75 250 1
0.01 - 0.5 S1H2 / S1H2R 1.0/0.9 1.5 80/75 250 1
0.01 - 1 S1H3 / S1H3R 1.3/1.2 1.5 80/75 250 1
0.01 - 2 S1H4 / S1H4R 1.9/1.8 1.6 80/75 250 1
0.01 - 4 S1H5 / S1H5R 2.6/2.5 1.8 80/75 250 1
0.1 - 0.5 S1V1 / S1V1R 1.0/0.9 1.5 80 250 1
0.1 - 1 S1V2 / S1V2R 1.3/1.2 1.5 80 250 1
0.1 - 2 S1V3 / S1V3R 1.9/1.8 1.6 80 250 1
0.1 - 4 S1V4 / S1V4R 2.8/2.5 1.8 80/75 250 1
0.1 - 8 S1V5 / S1V5R 3.3/3.2 2.0 75/70 250 1
0.1 - 10 S1V6 / S1V6R 3.6/3.5 2.0 75/70 250 1
0.5 - 1 S1U1 / S1U1R 1.1/1.0 1.5 80 100 1
0.5 - 2 S1U2 / S1U2R 1.5/1.4 1.6 80 100 1
0.5 - 4 S1U3 / S1U3R 2.1/2.0 1.8 80/75 100 1
0.5 - 6 S1U4 / S1U4R 2.3/2.2 2.0/1.9 75/70 100 1
0.5 - 12 S1U5 / S1U5R 2.7/2.5 2.0 70/65 100 0.5
0.5 - 18 S1U6 / S1U6R 3.0/2.8 1.9/2.0 65/60 100 0.5
1 - 2 S1L1 / S1L1R 0.9/0.8 1.5 85/80 100 1
1 - 4 S1L2 / S1L2R 1.2/1.1 1.6 85/80 100 1
1 - 8 S1L3 / S1L3R 1.9/1.8 1.8 80/75 100 1
1 - 10 S1L4 / S1L4R 2.0/1.9 2.0 75/70 100 1
1 - 12 S1L5 / S1L5R 2.2/2.0 2.0 70/65 100 0.5
1 - 14 S1L6 / S1L6R 2.4/2.2 2.0 70/65 100 0.5
1 - 18 S1L7 / S1L7R 3.0/2.7 2.0 65/60 100 0.5
2 - 4 S1S1 / S1S1R 1.1/1.0 1.6 75/70 100 1
2 - 6 S1S2 / S1S2R 1.4/1.3 1.7 75/70 100 1
2 - 8 S1S3 / S1S3R 1.8/1.7 1.8 75/70 100 1
2 - 10 S1S4 / S1S4R 2.0/1.8 1.8 70 100 1
2 - 12 S1S5 / S1S5R 2.2/2.0 1.9 70/65 100 0.5
2 - 16 S1S6 / S1S6R 2.7/2.5 2.0 65/60 100 0.5
2 - 18 S1S7 / S1S7R 3.0/2.7 2.0 65/60 100 0.5
4 - 8 S1C1 / S1C1R 1.8/1.1 1.6 75/70 100 1
4 - 10 S1C2 / S1C2R 2.0/1.2 1.7 70 100 1
4 - 12 S1C3 / S1C3R 2.2/1.5 1.8 70/65 100 0.5
4 - 16 S1C4 / S1C4R 2.7/1.9 2.0 65/60 100 0.5
4 - 18 S1C5 / S1C5R 2.8/2.0 2.0 65/60 100 0.5
6 - 10 S1C6 / S1C6R 2.0/1.2 1.7 70 100 1
6 - 12 S1C7 / S1C7R 2.2/1.5 1.8 70/65 100 0.5
6 - 18 S1C8 / S1C8R 2.8/2.0 2.0 65/60 100 0.5
8 - 10 S1X1 / S1X1R 1.9/1.2 1.7 70 100 0.5
8 - 12 S1X2 / S1X2R 2.2/1.5 1.8 70/65 100 0.5
8 - 18 S1X3 / S1X3R 2.8/2.0 2.0 65/60 100 0.5
10 - 18 S1K1 / S1K1R 2.8/2.0 2.0 65/60 100 0.5
12 - 18 S1K2 / S1K2R 2.8/2.0 2.0 65/60 100 0.5

Notes:

Mechanical Specifications:

DC Bias: +5V +/-0.5V @ 50mA max Case Style: S1 Outline
Finish: Gold Plate per MIL-G-45204
Bias & Control Pins: ø0.02" x 0.15" long
Weight: 20g max
Mounting: ø0.10" through holes (4) places
(Standard) -15V +/-3V @ 50mA max
 
DC Bias: +5V +/-0.5V @ 60mA max
(-5 option) -5V +/-0.5V @ 60mA max
 
DC Bias: +15V +/-3V @ 50mA max
(-12 option) -15V +/-3V @ 50mA max
 
Control: TTL 0 = Low Loss
  TTL 1 = Isolation
 
Absorptive switch: 50Ω terminations at both RF ports (in isolation mode).
Switching speed is defined as 50%TTL to 90% (t-on) and 50%TTL to 10%RF (t-off).

Environmental Specifications:

MIL-E-5400, MIL-STD-202, MIL-E-16400
Operating Temp: -55°C to +85°C
Storage Temp: -65°C to +125°C
Humidity: MIL-STD-202F, M103, Cond B
Shock: MIL-STD-202F, M213, Cond B
Altitude: MIL-STD-202F, M105, Cond B
Vibration : MIL-STD-202F, M204, Cond B
Thermal Shock: MIL-STD-202F, M107, Cond A
Temperature Cycle: MIL-STD-202F, M105C, Cond D

Screening:

Internal Visual per MIL-STD-883, Method 2017
Temperature Cycle: -65°C to +100°C, 10 cycles

Hermetically-sealed switches are fine and gross leak checked per MIL-STD-883, Method 1014.

Optional High-Rel screening available upon request.
Contact the factory to discuss your screening requirements.

 

OUTLINE CASE STYLE S1

Part Number Ordering Information:

  • Add "-RC" suffix: RoHS-compliant
  • Add "-5" suffix: +/-5V DC supplies
  • Add "-5-RC" suffix: +/-5V DC supplies, RoHS-compliant
  • Add "-12" suffix: +/-12V to 18V DC supplies
  • Add "-12-RC" suffix: +/-12V to 18V DC supplies, RoHS-compliant
  • Add "-H" suffix: Hermetic seal (does not apply to RoHS-compliant models)

Custom Options - Contact Factory:

  • Gray epoxy paint per MIL-C-22750
  • Video transient suppression
  • GPO connectors
  • ECL logic input
  • Phase and amplitude matching
  • Other frequency ranges available from 1MHz to 26GHz
  • Reversed logic
  • Available without SMA connectors for drop-in applications
  • High rel screening