RF and Microwave Components Online Catalog

RFK-6396 high speed SPDT RF switching relay with SPDT auxiliary contact set.  

We have LARGE QUANTITY of these excellent, very fast (4 milliseconds maximum... typically much faster!) RF relays for sale. These relays are an excellent choice for low-level RF switching, such as with the Jennings RJ1A or Kilovac HC-1 in QSK applications.

The HI-G d'Italia relays have TWO sets of SPDT contacts. One set is for RF, the other set is for auxiliary switching and control applications (non-RF). These relays are supplied as pictured in the photo, with 50 ohm RG-196A/U teflon coax and one SSMB male (snap on) and one SMB male (snap on) gold plated Mil-spec connector. These relays were removed from brand new military equipment, and are fully guaranteed!

NEW! We now have available the mating SMB and SSMB chassis mount male connectors which mate with the connectors supplied on the relays. (One of each will be needed for each relay) These are gold-plated, mil-spec connectors, removed from equipment, at $1 each! We will sell the SMB and SSMB males for this price, with or without relay purchase. In photos, the SSMB are shown on the left, SMB are shown on the right.

SPECIFICATIONS FOR HI-G d'Italia RELAYS:

The RFK-6396 relays were made to a special military specification (denoted by the "6396" in the part number. While it is not possible to find out just what this additional specification was, it is safe to say that it was more performance in some way than the standard RFK series relay. The specifications for the standard RFK series are available, and are listed here:

Features:

• All welded, hermetically sealed construction
• Coax interconnections, using RG-196A/U silver/Teflon coax
• 200 watts RF carry capability
• 75 watt RF switching capability
• Low level to 2 amp auxiliary switching contacts

Specifications:

Coil voltage is 26.5 VDC

• Coil resistance is 675 ohms
• Contact rating:
• DC auxiliary contacts low level to 2A, 28VDC
• RF contacts 75 watts switching 200 watts carry (cold switching)
• contact resistance: 50 milliohms max
• close speed 4 ms maximum!
• release speed 3 ms maximum!
• Frequency range:
  • DC to 500 Mhz at full ratings
  • usable to 1000 MHz at reduced ratings
  • VSWR:
    • <1.1:1 at 100 MHz
    • <1.2:1 at 500 MHz
• Insertion loss:
  • 0.16 dB typical at 100 MHz
  • 0.5 dB typical at 500 MHz
• Impedance: 50 ohms
• Crosstalk:
  • 50 dB typical at 100 MHz
  • 40 dB typical at 500 MHz
• Environmental:
  • -65 degrees C to +85 degrees C
  • 20 G's vibration, 10 to 2000 HZ
    100 G's shock, 6 milliseconds
• Insulation resistance: 1000 megohms min at 500 VDC
• Dielectric strength: 500Vrms between all mutually insulated points

Condition: Removed from equipment (most was BRAND NEW) excellent, fully guaranteed. Refer to our stock number RFK-6396.

Refer to our stock number RLY-MSC-01 / RFK-6396.
Price: $6 each! (An OUTSTANDING buy!) (Order Now!)

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FXR 300-11559

We have good quantity of this unusual relay for sale. We understand that they were removed from the R-390A receiver, though We have not verified this. On one side of the relay are one type "C" female connector and one twinax female connector....(just as one sees on the back panel of the R-390A, so that seems to agree.) On the other side of the relay are three mini-BNC connectors...two-prong type....again, as one sees in the R-390A.

Unenergized, the three mini-BNC's feed straight through to the three center conductors on the other side....the center of the type "C" and the two center conductors of the twinax connector. Energizing either of the two 20 VDC coils opens the circuit on that side of the relay.

Most are made by FXR, and are type 300-11559. The connectors are labeled as J105 and J103 for the type "C" side, and J104, J106, and J107 for the twinax side. Fully guaranteed.

Refer to our stock number RLY-MSC-02
Price: $15 each (Order Now!)

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Dow-Key Microwave SPST model 429A-5319 mini RF relay with pin connectors. 

We have good supply of these removed from equipment / like new condition mini RF SPST relays for sale. They are tiny in size at approximately 1 inch wide X 1-3/8 inch tall X 1/2 inch thick. They have protruding pins for RF connection that are about 3/16 inch long. They are normally open, and have 24- 26vdc coils which close at about 14 vdc. Coil pulls about 200 ma at 24 vdc, and measures 320 ohms. 20 milliseconds maximum close time. Maximum usable frequency rated at 1.5 Ghz. We have no further information available, except this from the manufacturer's website:

http://www.dowkey.com/product/8/rf_switches_relays_429_429a_5319.php

Our stock # RLY-MSC-03    Price: $12 each, fully satisfaction guaranteed! (Order Now!)

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Quantatron model SA-90C10-3 SPDT coaxial switch, with C connectors

These small RF coaxial relays are brand new. They are SPDT, with type C female connectors. (We do have type C adapters, if needed, here: http://www.mgs4u.com/C-adapters.htm  ) Made by Quantatron, Inc of Santa Monica , Ca. (We understand that they were acquired by Korad Corp.) Coil voltage is 26 - 30 vdc. Measures 2.125 inches maximum width, 2.125 inches max height, including connectors, and 1.375 inches max depth including connector. Has two drilled and tapped holes on flat end for mounting.  No other data. Condition: Brand new old stock.  

Our stock number: RLY-MSC-04    Price: $9.00 each! (Order Now!)