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SB221NO-RO

Description
Pushbutton Switches SPST
CategoryTopical application    Mechanical and electrical/engineering/automation   
File Size150KB,4 Pages
ManufacturerNKK
Websitehttps://www.nkkswitches.com.cn
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SB221NO-RO Overview

Pushbutton Switches SPST

SB221NO-RO Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerNKK
Product CategoryPushbutton Switches
RoHSDetails
Contact FormSPST
Switch FunctionOFF - (ON)
Current Rating3 A
Voltage Rating AC250 VAC
Mounting StylePanel
Termination StyleSolder Lug
ActuatorRound
Contact PlatingSilver
Housing MaterialPhenolic Resin
Terminal SealEpoxy
Cap ColorBlack
Life10000 Cycles
Factory Pack Quantity1
Series SB
Toggles
Low/Medium Capacity Pushbuttons
GENERAL SPECIFICATIONS FOR SB25, SB60s, SB221s, SB265
Electrical Capacity (Resistive Load)
Power Level:
Shown in the following tables
Rockers
Pushbuttons
Other Ratings
C
Contact Resistance:
Insulation Resistance:
Dielectric Strength:
Programmable Illuminated PB
Mechanical Life:
Electrical Life:
Total Travel:
Operating Temp Range:
10 milliohms maximum
200 megohms minimum @ 500V DC for SB221s, SB25, & SB265;
1,000 megohms minimum @ 500V DC for SB60s.
1,500V AC minimum for SB265 & SB25 for 1 minute minimum;
2,000V AC minimum between contacts for SB221s & SB60s for 1 minute minimum;
1,500V AC minimum between contacts & case for SB221s & SB60s for 1 minute minimum
50,000 operations minimum for SB221s;
30,000 operations minimum for SB25, SB60s, SB265
10,000 operations minimum
SB221s .116” (2.95mm); SB60s .094” (2.4mm); SB265 .213” (5.4mm);
SB25 .195” (4.95mm)
–10°C through +70°C (+14°F through +158°F)
Keylocks
Materials & Finishes
Cap:
Plunger:
Bushing:
Case:
Case Cover:
Movable & Stationary Contacts:
Terminals:
Polybutylene terephthalate (PBT) (AT414)
Polyacetal or brass with nickel plating
Brass with nickel plating
Phenolic resin or melamine phenolic resin
Steel with zinc plating
Copper with silver plating for SB221s; silver alloy with silver plating for SB25, SB60s, & SB265
Copper with tin plating for SB25 & SB60s; copper with silver plating for SB265
Slides
Rotaries
Installation
Soldering Time & Temp:
Tactiles
Manual Soldering (Solder Lug): See Profile A in Supplement section.
Standards & Certifications
UL:
File No. E44145 - Recognized only when ordered with marking on switch.
Add “/U” or “/CUL” to end of part number to order UL recognized switch.
UL or cULus recognition designated beside part numbers on following pages.
See Supplement section to find UL or cULus rating details.
File No. 023535_0_000 - Certified only when ordered with marking on switch.
Add “/C” to end of part number to order CSA certified switch.
CSA certification designated beside part numbers on following pages.
See Supplement section to find CSA rating details.
Tilt
CSA:
Touch
Supplement
Accessories
Indicators
C128
www.nkk.com

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SB221NO-RO SB61A-RO SB25-BA-RO SB25-RO SB63A-RO
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Product Attribute Attribute Value Attribute Value Attribute Value Attribute Value Attribute Value
Manufacturer NKK NKK NKK NKK NKK
Product Category Pushbutton Switches Pushbutton Switches Pushbutton Switches Pushbutton Switches Pushbutton Switches
RoHS Details Details Details Details Details
Contact Form SPST DPDT DPDT DPDT DPDT
Switch Function OFF - (ON) ON - (ON) ON - ON ON - ON ON - (ON)
Current Rating 3 A 10 A 15 A 15 A 10 A
Voltage Rating AC 250 VAC 250 VAC 250 VAC 250 VAC 250 VAC
Mounting Style Panel Panel Panel Panel Panel
Termination Style Solder Lug Solder Lug Solder Lug Solder Lug Solder Lug
Actuator Round Round Round Plunger Round
Contact Plating Silver Silver Silver Silver Silver
Housing Material Phenolic Resin Phenolic Resin Phenolic Resin Phenolic Resin Phenolic Resin
Terminal Seal Epoxy Epoxy Epoxy Epoxy Epoxy
Life 10000 Cycles 10000 Cycles 10000 Cycles 10000 Cycles 10000 Cycles
Factory Pack Quantity 1 1 1 1 50
Cap Color Black Black Black - Black
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