AT4178JC NKK Switches, AT4178JC Datasheet - Page 9

• Manufacturer Part Number: AT4178JC
• Description: CAP RND CLR/RED FOR LB LED SER
• Manufacturer: NKK Switches
• Series: LBr
• Type: Cap, Roundr

Specifications of AT4178JC

• Switch Type: Pushbutton
• Shape: Round
• Color: Clear, Red
• Illumination: Illuminated
• Mounting Type: Snap Fit
• Size: 19.00mm Dia x 4.50mm H
• Height: 10 mm
• Length: 19 mm
• Body Style: Round Shaped
• Brand/series: LB Series
• Diameter: 0.748 in.
• Material, Body: Polycarbonate
• Used With: LB Series
• For Use With/related Products: LB Series
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: LB Series

Standard Size Snap-in Pushbuttons
Material: Polyamide
AT499
Square
Protective Guard
Opens 90°
Closes manually
AT4171
Square
Protective Guard
Opens 180°
Closes automatically
AT497
(20.0)
.787
Material: Polyamide
(N) = Number of switches
End
(20.5)
.807
AT4171
(16.2) Sq
.638
End Position
(10.5)
.413
(20.4)
.803
Center
AT498
* Minimum dimension allows opening of cover to 180
Center Position
(20.4)
.803 (N)
Protective Guards reduce depth of switch behind panel by .020” (0.5mm).
(4.3) Typ
.169
(15.0)
(5.2)
.205
.591
(1.19)
.047
(39.0) Min*
1.535
(23.5)
OPTIONAL ACCESSORIES
.925
Spring Loaded Protective Guard
(19.2)
.756
.047
(1.19)
°
Protective Guard
(21.0)
.827
(20.5)
.807
(19.2)
.756
(10.0)
.394
Barriers
(10.5)
.413
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Materials:
Cover: Clear Polycarbonate
Base: Black GFR Polyamide
Coil Spring: Stainless Steel
Recommended Panel Thickness:
.039” ~ .106” (1.0mm ~ 2.7mm)
(17.0)
.669
(18.4)
.724
A = .996” (25.3mm) x Number of Switches + .051” (1.3mm)
A = .752” (19.1mm) x Number of Switches + .051” (1.3mm)
(20.0)
.787
(20.4)
.803
Cutouts for More Than 1 Switch
Cap Height
When
Assembled
Cap Height
When
Assembled
Rectangular
.295
(7.5)
(8.0)
.315
A
Square
Series LB
(16.2)
.638
(14.2)
.559
180°
(14.0) Sq
.551
(17.9)
.705
(17.9) Sq
.705
.280
(7.1)
D55
(17.9)
.705
D