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DB2521B

Description
Switch Bezels / Switch Caps RND CAP FOR SB BLACK
CategoryTopical application    Mechanical and electrical/engineering/automation   
File Size528KB,7 Pages
ManufacturerNKK
Websitehttps://www.nkkswitches.com.cn
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DB2521B Overview

Switch Bezels / Switch Caps RND CAP FOR SB BLACK

DB2521B Parametric

Parameter NameAttribute value
Product CategoryPushbutton Switches
ManufacturerNKK
RoHSDetails
Contact FormDPDT
Switch FunctionON - (ON)
Voltage Rating AC28 VAC
Voltage Rating DC28 VDC
Power Rating0.4 VA
Mounting StyleThrough Hole
Termination StyleSolder Pin
ActuatorWithout Cap
Contact PlatingGold
FeaturesButton/cap ordered separately
Factory Pack Quantity1
Series DB
Toggles
Light Touch Miniature Pushbuttons
Rockers
General
Specifications
Electrical Capacity (Resistive Load)
Logic Level:
Pushbuttons
C
Other Ratings
Contact Resistance:
Insulation Resistance:
Dielectric Strength:
0.4VA maximum @ 28V AC/DC maximum
(Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V)
Note: Find additional explanation of operating range in Supplement section.
Programmable Illuminated PB
Mechanical Life:
Electrical Life:
Nominal Operating Force:
Travel:
Keylocks
50 milliohms maximum
1,000 megohms minimum @ 500V DC
1,000V AC minimum between contacts for 1 minute minimum;
1,500V AC minimum between contacts & case for 1 minute minimum
200,000 operations minimum
100,000 operations minimum
Single Pole: 1.96N
Double Pole: 2.94N
Pretravel .020” (0.5mm); Overtravel .020” (0.5mm); Total Travel .039” (1.0mm)
Materials & Finishes
Slides
Plunger:
Bushing:
Frame:
Case:
Movable Contacts:
Stationary Contacts:
Terminals:
Brass with nickel plating
Brass with nickel plating
Stainless steel
Glass fiber reinforced polyamide
Copper with gold plating
Phosphor bronze with gold plating
Brass with gold plating
Rotaries
Environmental Data
Tactiles
Operating Temp Range:
Humidity:
Vibration:
Shock:
–10°C through +70°C (+14°F through +158°F)
90 ~ 95% humidity for 96 hours @ 40°C (104°F)
10 ~ 55Hz with peak-to-peak amplitude of 1.5mm traversing the frequency range & returning
in 1 minute; 3 right angled directions for 2 hours
50G (490m/s
2
) acceleration (tested in 6 right angled directions, with 5 shocks in each direction)
Tilt
Installation
Mounting Torque:
Cap Installation Force:
1.47Nm (13.0 lb
in) for double nut; 0.68Nm (6.0 lb
in) for single nut
78.5N (17.65 lbf) maximum downward force on actuator
Touch
PCB Processing
Soldering:
Cleaning:
Indicators
Wave Soldering Recommended. See Profile A in Supplement section.
Manual Soldering: See Profile B in Supplement section.
These devices are not process sealed. Hand clean locally using alcohol based solution.
Standards & Certifications
Supplement
Accessories
The DB Series pushbuttons have not been tested for UL recognition or CSA certification.
These switches are designed for use in low-voltage, low-current, logic-level circuit.
When used as intended in a logic-level circuit, the results do not produce hazardous energy.
C18
www.nkkswitches.com

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Description Switch Bezels / Switch Caps RND CAP FOR SB BLACK RF Connectors / Coaxial Connectors PCB R/A Jack Rcept 50 OHM Switch Bezels / Switch Caps RND CAP FOR SB BLACK Switch Bezels / Switch Caps RND CAP RED Low Signal Relays - PCB ThruHole Hi-Sens SPDT 5DC 150mW Seal
Product Category Pushbutton Switches Pushbutton Switches Pushbutton Switches Pushbutton Switches Pushbutton Switches
Manufacturer NKK NKK NKK NKK NKK
RoHS Details Details Details Details Details
Contact Form DPDT SPDT DPDT DPDT SPDT
Switch Function ON - (ON) ON - (ON) ON - (ON) ON - (ON) ON - (ON)
Voltage Rating AC 28 VAC 28 VAC 28 VAC 28 VAC 28 VAC
Voltage Rating DC 28 VDC 28 VDC 28 VDC 28 VDC 28 VDC
Power Rating 0.4 VA 0.4 VA 0.4 VA 0.4 VA 0.4 VA
Mounting Style Through Hole Through Hole Through Hole Through Hole Through Hole
Termination Style Solder Pin Solder Pin Solder Pin Solder Pin Solder Pin
Actuator Without Cap Without Cap Without Cap Without Cap Without Cap
Contact Plating Gold Gold Gold Gold Gold
Features Button/cap ordered separately Button/cap ordered separately Button/cap ordered separately Button/cap ordered separately Button/cap ordered separately
Factory Pack Quantity 1 1 1 1 1

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Index Files: 1015  1607  1964  1771  1351  21  33  40  36  28 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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