E&M Laboratories S12T82 RF Microwave Isolator SMA-F Connector Westlake Village

E&M Laboratories S12T82 RF Microwave Isolator SMA-F Connector Westlake Village

The E&M Laboratories S12T82 is a compact RF microwave isolator designed with SMA-F (SMA female) input and output connectors. An isolator is a two-port passive ferrite device that allows RF signals to pass in one direction while strongly attenuating signals traveling in the reverse direction, protecting upstream components — such as amplifiers, oscillators, and signal sources — from reflections and mismatched loads that can cause instability or damage. This unit is manufactured by E&M Laboratories of Westlake Village, California, a specialist in passive RF and microwave components.

Specifications & What's Included

• Manufacturer: E&M Laboratories, Westlake Village, Calif.
• Model Number: S12T82
• Type: RF Microwave Isolator (two-port ferrite)
• Connector Type: SMA-F (SMA Female) — INPUT and OUTPUT ports labeled on body
• Number of Ports: 2 (Input / Output)
• Body construction: machined metal housing, compact block form factor
• Mounting: attached metal mounting bracket included

Applications

RF isolators like the S12T82 are standard components in microwave and RF signal chains. They are used to protect amplifiers, signal generators, and oscillators from reflections caused by impedance mismatches, preventing frequency pulling, spurious oscillation, and potential damage to sensitive active devices. They are commonly found in communications systems, radar, satellite ground equipment, test and measurement setups, and defense electronics. E&M Laboratories was a California-based producer of passive microwave components — including isolators, circulators, and combiners — whose products were widely used in aerospace, defense, and commercial RF systems from the 1970s through the 1990s. The SMA connector interface makes this unit compatible with a broad range of bench test, development, and production RF applications in the microwave frequency range.