RF Coaxial Relays: "Miscellaneous" Connectors
RF Coaxial Switch
12 - 15v DC / DC-18 GHz / SPDT
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(KC) 8761A-100-200-302
HP RF coaxial switch. 12 - 15v DC, DC-18 GHz, SPDT. "N" female outputs. APC-7 sleeve input.
$175
RF Coaxial Switch
12 - 15v DC / DC-18 GHz / SPDT
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(KC) 8761A-102-202-303
HP RF coaxial switch. 12 - 15v DC, DC-18 GHz, SPDT. 7mm APC-7 sleeve on outputs, 7mm APC-7 collar nut on input.
$395
RF Coaxial Switch
12 - 15v DC / DC-18 GHz / SPDT
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(KC) 8761A-103-203-302
HP RF coaxial switch. 12 - 15v DC, DC-18 GHz, SPDT. 7mm APC-7 coupling nut outputs. 7mm APC-7 sleeve input.
$375
RF Coaxial Switch
12 - 15v DC / DC-18 GHz / SPDT
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(KC) 8761B-101-201-302
HP RF coaxial switch. 24 - 30v DC, DC-18 GHz, SPDT. "N" male outputs. APC-7 sleeve input.
$325
RF Coaxial Switch
12 - 15v DC / DC-18 GHz / SPDT
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(KC) 8761B-102-202-302
HP RF coaxial switch. 24 - 30v DC, DC-18 GHz, SPDT. 7mm APC-7 sleeve on all ports.
$350
RF Coaxial Switch
12 - 15v DC / DC-18 GHz / SPDT
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(KC) 8761B-103-203-303
HP RF coaxial switch. 24 - 30v DC, DC-18 GHz, SPDT. 7mm APC-7 coupling nut.
$375
Vacuum Rotary Switch
SP6T / 20 kv / 20 amps
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(SWR) RN3B-00N300
Very Rare! Jennings vacuum rotary switch. SP6T, 20 kv, 20 amps. 6 position. Includes knob. 3.2"D front flange. 6 hole bolt pattern.
$650
PC Mount Relay
SPDT / 28v DC / DC-18 GHz
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(KC) S-5343A
RLC PC mount relay with indicating circuitry. SPDT, 28v DC, DC-18 GHz. 0.5" x 1.25" x 1.6"H. 0.45" pin spacing.
$275 each
"SMB" RF Relay
SP5T
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(KC) 14D-DIP
Autek "SMB" RF relay. SP5T. 14-pin IC socket for power and indicator circuitry.
$125 each
Coaxial Relay Assembly
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(KO) 509R193G01
Coaxial relay assembly. NOS. Includes the following parts:
  • Midtex / Aemco relay 577R647H02, 27.5v DC
  • Diode
  • 2 each: 3 lug BSM / MB type RF connectors, male, P/N: RF02417-801 (NSN: 5935-00-933-0143)
* Buy for relay connectors or the whole assembly! NSN: 5945-01-112-4968.
$95 each
RF Coaxial Relay
SPDT / 6.5 GHz / "SC" Connectors
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Click here for PDF file
(KC) D2828G1-PS
V-Z Inc. / Dynatech RF coaxial relay. SPDT, 6.5 GHz, "SC" connectors. Fail safe with indicator circuitry. 50 ohm, 24 - 30 vdc. Isolation: 60 dB minimum @ 6.5 GHz, 100 dB @ 100 MHz. 5 kw @ 400 MHz <-> 550 watts @ 6.5 GHz. Same as Transco 810C51200. Control circuit requires MS3116E-10-65 connector. NOTE: "SC" connectors and cables are available on our website.
$775 each
Encapsulated RF Coaxial Relay
12v DC Coils
End View, Label
Close-up Coaxial Connection
Top View, Diagram
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(KC) 2188592
Hathaway Instruments used these cute little encapsulated RF relays in a telemetry product. Each of three coils is 12 vdc 160 ohms. Entire unit measures only 1-1/8" x 1-7/8" x 1" high. Relays are new.
  • Coil 1 operates 2 - SPST N.C. RF Contacts
  • Coil 2 operates 1 - SPST N.O. RF Contact
  • Coil 3 operates 2 - SPST N.O. Standard Contacts
$25 each
RF Pin Switch
SP2T / ±15v DC
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(KC) 100C1563
Daico RF pin switch. SP2T, ±15 vdc. DC - 12 GHz. Solder terminals. NSN: 5985-01-138-0700.
$650 each
Crystal Can Coaxial Relay
SPDT
(KC) RFBC-4528
HI-G coaxial RF contacts have 24" long, 50 ohm PTFE coax attached. Additional SPDT indicator contact set. 8.9 ma of current through 2000 ohm coil pulls and holds.
$55 each
Hardwire Dowkey Relay
SPDT / 28v DC
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(KC) DK-140
SPDT, Dowkey relay. Collins replacement. 28 vdc coil. RG-58 on common / NC ports, bottom terminal for NO port.
$185 each
RF Coaxial Relay
N-MB / SPDT / 27.5v DC / 2 GHz / 500w
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(KC) 300-11878
RF coaxial relay. "N" (common & N.O.), "MB" (N.C.), 27.5 vdc, 2 GHz, 500w.
$45 each
Crystal Can Relay
"SMB" / DPDT / 26v DC
(KC) 13-34-04430
Crystal can relay. SMB "snap-on" plug on common port, SMB jacks N.O., N.C. ports. Second set confirming contacts. 26 vdc coil.
$95 each
Fail Safe Relay
"SMB" / 2 GHz / 32v DC
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(KC) DK-119
Dowkey, fail-safe relay rated at 50 watts. SMB "snap-on" plugs on all ports. 32 vdc. Break before make. Collins P/N: 410-0448-010. NSN: 5985-00-987-4481.
$265 each
RF Coaxial Relay
"SMC" / 12v DC / SPDT
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(KC) 315-10053-2
The only "SMC" (fits UG-1465) relay in the house. Good DC-3 GHz. 12 vdc coil. 10 ms switch time. Used, removed from equipment. Made by Amphenol.
$45 each
RF Coaxial Relay
Microdot S-93 / SPDT / 26v DC / 250 Ohm
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(KC) 302-10033
Amphenol SPDT relay with S-93, 93 ohm connectors.
Coil: 26 vdc, 250 ohm.
$345 each

Failsafe RF Coaxial Relay
SPDT - MB / 48v DC / 2 GHz / 300w

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(KC) 346-10128-4
Terminates unused port into 91 ohm resistor. Failsafe. 48 vdc (100 ma) control. 2 GHz, 300 watts. Break before make. 2" x 2-1/4" x 2-1/2" high.
$225 each
RF Coaxial Relay
LT - SPDT / 50 Ohm
(KC) C14K2CA
400 watt CW @ 5 GHz. 5 kw CW @ 100 MHz. 50 ohm. This has "LT" connectors, NOT LC!! They look the same but are very different.
$175 each

Fifth Dimension Switch
4 position

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(RF) 1504-24-J3-J3-DC
Fifth dimension 4 position switch. SMC connectors. 4 3/4" x 3 1/2" x 3/4".
$350 each

Allied "RF" Crystal Can Relay
SPDT

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(KC) WKJX-448
Allied "RF" crystal can relay. SPDT. 27.5v DC, 600 Ω coil. 12"L RG188 silver 50 Ω coax.
$45 each