News

New_3K_and_3J
4/2/18
Grayhill has launched the second generation 3K Keypads and 3J Man-Machine-Interface (MMI) Controllers. These CAN-based devices have been entirely reengineered...
 
75_years_emblem
3/29/18
Grayhill Celebrates our 75th Anniversary. Started in 1943, Grayhill's first switch was an engine governor control switch for a submarine in World War II....
 
Series 77
3/21/18
Requiring less than 0.2 inches behind panel and having a minimum diameter of 0.5 inches, the Series 77 rotary switches are designed for small devices that...
 
TE New Bezel
3/15/18
GrayhillTouch Encoder is a great choice for armrest, dashboard, and marine applications, which benefit from the Touch Encoder’s no-look operation, impact...
 
04JT-duo
3/9/18
The Series 04JT Discrete Joystick features direct tactile feedback, a rugged design, and reliable functionality.
 
 

Smallest Rotary Switch for Harsh Environments

May 29, 2013 02:00 PM

Grayhill, Inc. today introduced a small and sealed rotary switch, the 77 Series. This compact rotary switch requires less than a quarter inch behind panel, making it ideal for handheld devices. Further, its MIL-rated resistance to moisture, sand and dust indicates that it is suitable for harsh, outdoor environments.

Military handheld radios, night vision goggles and laser aiming devices all require rotary switches to select settings. Because the typical soldier carries more than one of these devices, size is an important consideration. The 77 Series rotary switch will fit on almost any device. Its diameter is only 0.5 inches and it requires just 0.18 inches of clearance; the smallest rotary available with this level of seal.

Compact, sealed 77 Series rotary switchThese devices are carried through some of the harshest environments from driving rain to swirling dust storms. Because of this, the environmental seal is almost more important than the size. An unsealed switch would quickly lead to a malfunctioning device. Grayhill’s 77 Series rotary switches have endured rigorous testing to confirm they meet military specified standards for resistance to moisture, salt spray, underwater immersion, sand and dust.

The 77 Series is available with or without a process seal or a shaft and panel seal. It can switch up to 10 positions in single pole configuration or up to 5 positions in a double pole configuration. The 77 Series can be ordered with continuous rotation or a fixed stop. The contacts are non-shorting, wiping contacts.

As your product development partner, Grayhill can customize the 77 Series to meet unique electrical or environmental requirements. Modifications can be made to achieve different cycles of operation, currents, temperature ranges or atmospheric pressure conditions.

For more information, see the 77 Series datasheet.

 

Back

 
 
 
 
close (X)