English
Language : 

SB25B Datasheet, PDF (1/3 Pages) List of Unclassifed Manufacturers – Low/Medium Capacity Pushbuttons
Series SB
Low/Medium Capacity Pushbuttons
GENERAL SPECIFICATIONS FOR SB25, SB60s, SB221s, SB265
Electrical Capacity (Resistive Load)
Power Level: Shown in the following tables
Other Ratings
C
Contact Resistance: 10 milliohms maximum
Insulation Resistance: 200 megohms minimum @ 500V DC for SB221s, SB25, & SB265;
1,000 megohms minimum @ 500V DC for SB60s.
Dielectric Strength: 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
Mechanical Life: 50,000 operations minimum for SB221s;
30,000 operations minimum for SB25, SB60s, SB265
Electrical Life: 10,000 operations minimum
Total Travel: SB221s .116” (2.95mm); SB60s .094” (2.4mm); SB265 .213” (5.4mm);
SB25 .195” (4.95mm)
Operating Temp Range: –10°C through +70°C (+14°F through +158°F)
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
Installation
Soldering Time & Temp: 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.
CSA: 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.
C128
w w w.nkk.com