Ventura California – November, 2001 — Dow-Key Microwave (a subsidiary of Dover Corp., NYSE:DOV), is an ISO 9001 Certified manufacturer of Electro-mechanical Coaxial and Waveguide switches, Switch Matrices, Integrated Modular Assemblies, and related Passive components. Dow-Key’s Micro Miniature Bypass Switch (P/N 411FL-2308-1) performs from DC to 3 GHz with upgrade capability to 18 GHz. DC characteristics include 22-32 VDC (28 VDC nominal operating current is 250 mA typical @ 20ºC) operation. Equipped with a failsafe actuator, this switch has an operating speed of 15 ms (max).

This very reliable and extremely small bypass switch targets the wireless market. One ideal application is to bypass an LNA (Low Noise Amplifier). The switch allows removal of the LNA from the critical path in case of LNA failure or required maintenance.


Frequency Range(GHz) DC-1 1-2 2-3
VSWR (max.) 1.10:1 1.15:1 1.20:1
Insertion Loss(max.) 0.05 dB 0.10 dB 0.15 dB
Isolation (Min.) 80 dB 80 dB 80 dB
RF Power, WCW 50 35 25

Dow-Key”s product line of switches range from Single-Pole Single-Throw to Single-Pole 14-Throw as well as Transfer, Inline, Waveguide, Switch Matrices, Integrated Modular Switch Assemblies. For more information, call the Dow-Key Sales Department at (805) 650-0260 or visit our web site at https://www.dowkey.com.