Series GRF121A/GRF121AR

SPDT Magnetic-Latching

DC-18GHz RF Relay

40Gbps

GRF121A\GRF121AR\062021

SERIES RELAY TYPE

GRF121A RF Magnetic-Latching, SPDT, Common Coil Negative, ungrounded contacts, Surface Mount Relay

GRF121AR RF Magnetic-Latching, SPDT, Common Coil Positive, ungrounded contacts, Surface Mount Relay

SURFACE MOUNT

HIGH REPEATABILITY

SPDT, BROADBAND 18 GHZ

40GBPS

MAGNETIC-LATCHING RF RELAY

ENVIRONMENTAL AND

PHYSICAL SPECIFICATIONS

Temperature

(Ambient)

Storage –55��C to +125°C

Operating –55°C to +85°C

Vibration

(Note 3)

10 g’s, 10 to 3000 Hz

Shock

(Note 3)

30 g’s,

6ms half sine

Enclosure Hermetically sealed

DESCRIPTION

The ultraminiature GRF121A /GRF121AR relay is a

Bidirectional, Open Contact SPDT Relay, designed

to provide a practical surface-mount switching solu-

tion with RF performance and repeatability to 16GHz.

The GRF121A/GRF121AR improves on Teledyne

Relays’ heritage of miniature RF relays by incorpo-

rating a precision transmission line structure in the

internal construction of the contact system. GRF121A

/GRF121AR relays feature a unique ground shield to

facilitate surface mounting and to extend the frequency

range when compared to through-hole solutions.

These relays are designed for use in RF attenuators,

RF switch matrices, high frequency spread

spectrum radios, ATE, and other applications that

require dependable high frequency signal delity

and performance. The magnetic-latching GRF121A /

GRF121AR is suitable for applications where power

budget is restricted. The relays can be operated with a

short duration pulse. After the contacts have trans-

ferred, no external holding power is required.

The GRF121A /GRF121AR features:

• High Repeatability

• Wide Bandwidth Performance

• Metal Enclosure for EMI Shielding

• High Isolation Between Control and Signal Paths

• High Resistance to ESD

The unique construction features and manufacturing

techniques provide excellent robustness for

environmental extremes and overall reliability:

• Minimum mass components and welded

construction provide maximum resistance to shock

and vibration

• Advanced cleaning techniques provide maximum

assurance of internal cleanliness

• Gold-plated precious metal alloy contacts ensure

reliable switching

• Hermetic Seal

• RoHS Compliant

Series GRF121A/GRF121AR

SPDT Magnetic-Latching

DC-18GHz RF Relay

40Gbps

GRF121A\GRF121AR\062021

GENERAL ELECTRICAL SPECIFICATIONS (@ 25°C)

Contact Arrangement 1 Form C (SPDT)

Rated Duty Continuous

Contact Load Rating Resistive: 0.25A @ 28Vdc

Contact Life Rating 3,000,000 cycles typical at low level

Coil Operating Power

GRF121-5: 410mW typical @ nominal rated voltage

GRF121-12: 290mW typical @ nominal rated voltage

Switching Time 7.0 msec. max. (2 msec operate time, 5 msec bounce time)

Minimum Operate Pulse 6.0 msec width at rated voltage

Insulation Resistance 1,000MΩ min. between mutually isolated terminals

Dielectric Strength 350 Vrms (60Hz) @ Atmospheric Pressure

DETAILED ELECTRICAL SPECIFICATIONS (@25°C)

BASE PART NUMBERS

GRF121/GRF121AR-5 GRF121/GRF121AR-12

Coil Voltage, Nominal (Vdc)

5.0 12.0

Coil Resistance (Ohms ±20%) 61 500

Pick-up Voltage, Max (Vdc) (General Note 5) 4.3 10.4

NOTES

1. Characteristics shown as “typical” are based on available data and are best estimates. No ongoing verification tests are performed.

2. Unless otherwise specified, parameters are initial values.

3. Relay contacts will exhibit no chatter in excess of 10 µsec or transfer in excess of 1 µsec.

4. Relay leads are gold plated with a typical thickness of 25-40 µin. Ground shield is gold plated with a typical thickness of 10-30µin.

5. Operate voltage at less than the specified minimum may result in unreliable operation.

6. Relay temperature during soldering shall not exceed 250°C, and reflow temperature shall not exceed 250°C, 3 passes, 1 minute each.

GRF121A - 12

Relay Series

Part Numbering System (Note 4)

Coil Voltage

5 = 5Vdc

12 = 12Vdc

GRF121A

GRF121AR