Standard Keypads
SERIES 84B
Backlit with Self
Adhesive Legends
FEATURES
• Backlit for Low Light Applications
• Waterproof Silicone Rubber
• Audible, Tactile Contacts
• Low Contact Resistance
• Optional RFI/EMI Shielding
• 3,000,000 Operations per Button
DIMENSIONS
In inches (and millimeters)
Keyboards and Keypads
3 x 4 Keyboard
.290 REF (STYLE 1)
.368 REF (STYLE 2)
.100 TYP.
.525
.750,3 EQ SPS.,
TOL.NON-ACCUM.
SWITCH
POSITION
IDENTIFICATION
.025.002 SQUARE
TERMINAL PINS
7 PLACES
#6-32 MTG
STUD,
4 PLACES
X Y A B CDE F G
.425
1
2
3
4
5
6
X
Y
A
C
D
E
F
G
B
3.100
.020
1.500
.750
7
8
9
DETAIL A
TERMINAL PIN IDENTIFICATION
DETAIL
SCALE=1.5:1
LABEL
4 x
10
11
12
4 Keyboard
.350
1.650
.425
.750,2 EQ.SPS.,
TOL.NON-ACCUM.
.390 SQ. LEGEND
INSERT AREA
2.350 ± .020
.368
REF.
.267
REF.
.207
.357
.800
#6-32 MTG
STUD,
6 PLACES
.750,3 EQ SPS.,
TOL.NON-ACCUM.
SWITCH
POSITION
IDENTIFICATION
.025 .002
SQ. TERMINAL
PINS 10 PLCS.
.490
X
Y
H
G
F
E
D
C
B
A
.425
1
2
3
4
5
6
7
8
.100
TYP.
2.250
3.100
.020
9
10
11
12
.775
13
14
15
16
.425
.750,3 EQ.SPS.,
TOL.NON-ACCUM.
.390 SQ.
LEGEND
INSERT AREA
3.100 ± .020
.290 REF
(STYLE 1) .310
.368 REF
(STYLE 2)
.750
.267
REF.
1.500
.207
.357
2.120
DETAIL A
1.125
TERMINAL PIN IDENTIFICATION
DETAIL
SCALE=1.5:1
LABEL
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Keypads
7
Standard Keypads
SCHEMATIC AND TRUTH TABLE
3x4
Keyboards and Keypads
4x4
LED Color
Red
Yellow/Green
Green
Orange
Min.
-
-
1.50
-
Forward Voltage
Typ.
1.95
1.95
-
1.95
Max.
2.40
2.40
2.40
2.40
Resistor
(OHMS)
43
43
43
43
Typ. Current Consumption
(With 5V Pwr. Supply)
3x4
155mA
155mA
155mA
155mA
4x4
205mA
205mA
205mA
205mA
SPECIFICATIONS
Rating Criteria
Rating at 24 Vdc:
- 10 milliamps resistive
(max.)
Contact Bounce:
4 milliseconds maximum
at make; 10 milliseconds, at break
Contact Resistance:
10 ohms maximum
Life Expectancy:
3 million operations/button
Insulation Resistance:
>1,000 megohms
Operating Features
Pre-Travel:
.030 inches minimum
Operating Force:
20 ± 4 ounces
Humidity:
0 to 98% (no condensation)
Materials and Finishes
Terminal Pins:
Copper alloy CDA 725
PC Board:
FR-4 glass cloth epoxy
Dome Retainer/Rear Seal Sheet:
Polyester
Mounting Studs:
Phosphor bronze
Optional Hex Nut:
Stainless steel, passivated
Optional EMI Shield:
Aluminum foil
Keypad:
Silicone rubber
SELF-ADHESIVE LEGEND SHEETS
Each 8.5" x 11" legend sheet contains commonly used symbols, terms, alpha characters and 0-9 in helvetica bold type. Self- adhesive
legends are clear urethane on a chrome mylar base. Adhesive is silicone/acrylic. Legends can be purchased in the following ways:
1. Entire legend sheets: Part numbers 84AC5012-1, -2, -3 OR -4.
2. Individual legends: Part numbers 84AC5012-0001, -0002 etc. (Individual legend pins are for groups of 10 legends each)
3. See Grayhill drawing 84AC5012-X for detailed information on available legends, sizes and fonts.
ORDERING INFORMATION
84B =
Insertable Legend, Sealed and Shielded
84BN =
Insertable Legend, Sealed and Non-Shielded
Keyboard Size:
A = 3 x 4, B = 4 x 4
B = Matrix Code
84BN-AB-022AN
N = Mounting Nuts Supplied and Shipped Loose, Blank = No Nuts Supplied
Led Color:
A = Red, B = Yellow, C = Green, D = Orange
Keypads
8
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com