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Teledyne Relays Announces Family Of Surface-Mount Relays For High Repeatability, Broadband Use

HAWTHORNE, Calif. (August 11, 2003) - Teledyne Relays today introduced the Series GRF300 and GRF303 high repeatability, broadband TO-5 electromechanical relays, which are designed to provide a practical surface-mount solution with improved RF signal repeatability over the frequency range.

With U.S. patent pending, these ultraminiature surface-mount relays employ a butt-lead mounting scheme. They also feature a unique ground shield that insulates and shields each lead to ensure excellent contact-to-contact and pole-to-pole isolation. This ground shield also provides a ground interface that results in overall improved high-frequency performance as well as parametric repeatability - specifically the RF insertion loss, which is 0.1dB.

The GRF300 and GRF303 relays are the latest in a continuing series of surface-mount relays being developed at Teledyne Relays, according to Ron McConaughy, applications engineer. He said that the relays, having been designed specifically for surface-mount applications, extend performance advantages over similar RF devices that simply offer formed leads to allow for surface mounting.

The GRF300 and the sensitive GRF303 are engineered for use in RF attenuators, RF switch matrices, ATE and other applications that require dependable high-frequency signal fidelity and performance.

Each model is available in two coil voltages - 5 and 12 volts DC. In addition to providing RF performance data such as insertion loss, isolation and VSWR, Teledyne Relays has expanded its relay characterization to include pulse rise time and propagation delay time.

The relays are hermetically sealed to offer robust shock, vibration, temperature and ESD resistance as well as EMI shielding. The GRF300 measures .375 inches (9.52 mm) in diameter and .315 inches (8 mm) tall and weighs 0.09 oz. (2.55g). The GRF303 measures .375 inches (9.52 mm) in diameter and .425 inches (10.8 mm) tall and weighs 0.16 oz. (4.5g). The GRF300/GRF303 is priced at $27.00 each in quantities of 500 units. Lead time for delivery is eight to 10 weeks.

For more information, call (800) 284-7007, visit or send e-mail to

Teledyne Relays, a unit of Teledyne Electronics and Communications, has been the world leader in manufacturing ultraminiature electromechanical and solid-state switching products for more than 40 years. The company's comprehensive product line - including 31 new products released in 2002 - meets a wide range of requirements for industrial, commercial, military and aerospace uses.

Teledyne Relays has introduced the Series GRF300 and sensitive GRF303 surface-mount TO-5 electromechanical relays for high repeatability, broadband applications. The ultraminiature relays feature a unique ground shield that isolates and shields each lead.

Technical Contact: Antonio Gallegos
Phone: (323) 241-1264
Fax: (323) 241-1288

Editorial Contact: Steve Kelley, Kay Lau & Associates
Phone: (310) 278-2200

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