Series 86

Product catalog summary

Overview: This document provides technical specifications and details for Grayhill's standard keypads, including 3x4, 4x4, and 5x4 keyboard configurations. It covers dimensions, features, specifications, and ordering information.

Specifications: The keypads are rated at 10 milliamps at 24 Vdc with a contact resistance compatible with MOS, TTL, and DTL systems. They have a voltage breakdown of 250 Vac and a life expectancy of 3,000,000 operations per button. The contact bounce is less than 4 milliseconds at make and 10 milliseconds at break, with an operating temperature range of -40°C to +80°C.

Features: Keypads feature 1/2" button centers, flange mounting, and snap-dome contacts for positive feedback. They are available in top surface or sub-surface mounting options. The materials include ABS polycarbonate housing, ABS plastic buttons, clear polycarbonate snap-on caps, stainless steel contact domes, and phosphor bronze terminals.

Dimensions: Dimensions are provided in both inches and millimeters for various components of the keypads, including button travel and terminal pin-out configurations.

Legend Options: The keypads offer insertable and molded-in legend options. Insertable legends are die-cut to fit the button surface and can be customized using dry transfer lettering. Molded-in legends are available for specific legend numbers.

Ordering Information: The document outlines the ordering process, including series number, size options (3x4, 4x4, 5x4), circuitry options (Matrix code, Single pole/common bus), and standard legend choices. Part numbers for legend inserts and dry transfer lettering are also provided.

Catalog excerpts

Standard Keypads Unsealed, .500" Centers, Flange Mounted FEATURES • 1/2" Button Centers • Flange Mounted • Top Surface or Sub Surface Mounting • Snap-Dome Contact Provides Positive Feedback SWITCH KEY IDENTIFICATION FOR REF. ONLY Code and Truth Table Dots in the chart indicate connected terminals when switch is closed. Terminals are identified on the keyboard. RETAINING STUDS BUTTON LOCATION RETAINING STUDS Dimensions in inches (and millimeters) .100 TYP. A B C D E F GH J K L MN TERMINAL PIN-OUT SINGLE POLE/COMMON BUS

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Standard Keypads Code and Truth Table SERIES 86 Unsealed, .500" Centers, Flange Mounted FEATURES • V2" Button Centers • Flange Mounted • Top Surface or Sub Surface Mounting • Snap-Dome Contact Provides Positive Feedback dimensions in inches (and millimeters) Termination in inches (and millimeters) Dots in the chart indicate connected terminals when switch is closed. Terminals are identified on the keyboard. SINGLE POLE COMMON BUS TERMINAL MATRIX TERMINAL PIN-OUT Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60

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Standard Keypads Unsealed, .500" Centers, Flange Mounted FEATURES • 1/2" Button Centers • Flange Mounted • Top Surface or Sub Surface Mounting • Snap-Dome Contact Provides Positive Feedback SWITCH KEY IDENTIFICATION FOR REF. ONLY Dots in the chart indicate connected terminals when switch is closed. Terminals are identified on the keyboard. Code and Truth Table BUTTON LOCATION Dimensions in inches (and millimeters) CODES Single Pole/Common Bus

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SPECIFICATIONS Rating Criteria Rating at 24 Vdc: 10 milliamps, resistive Contact Resistance: Compatible with MOS, TTL and DTL (10 ohms maximum) Voltage Breakdown: 250 Vac between mutually insulated parts Life expectancy: 3,000,000 operations per button standard legends Insertable legend version (legend numbers -101, -001, -201 and row or column indicated in -202 and -203) has a removable cap. The revealed button surface can be legended by an insert or a dry transfer of a blank legend 5x4: Shown below Contact Bounce: Less than 4 milliseconds at make, 10 milliseconds at break operating Temperature:...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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