Page 441 - IS-Rayfast Catalogue - Issue 9, 2017

Switches and Grips
B3 and B5-7 Basic Switches
Product Range Overview
Miniature and Subminiature

B3 Series Description B5-7 Series Description 1
Designed to switch at least one million Two switches in one case! The B5-7 series
mechanical cycles, the B3 surpasses the basic switches are miniature in size but feature
requirements of the military in these categories: up to 10 amps switching capability of 100,000 2
contact resistance less than 25mΩ, contact cycles. The moulded housing is rugged and
bounce and overall cycle life. Gold plated structurally stable. The terminals are sealed
contacts are available for non-military against solder flux entering the switch and are 3
applications. UL recognized and CSA certified bright acid tin plate brass for excellent solder-
models available. ability. B5-71 has end terminals; B5-72 has
front terminals. 4
• Low level switching capability
• Qualified under MIL-PRF-8805/76 & /101 • Double pole, 4-circuit
• Choice of widths 3.96mm and 5.08mm • Simultaneity of both poles within .004” 5
• Available in Commercial & Military grades • Accordance with MIL-PRF-8805
• UL Recognized & CSA Certified • Available in Military & Commercial grades
• Choice of end & front terminals 6
B5 Series Description
Miniature in size and feature up to 10 amps
switching capability of 100,000 cycles. 7
Mechanical life is one million cycles. The
moulded housing is rugged and structurally All models are RoHS, WEEE
stable. The terminals are sealed against solder 8
flux entering the switch and are bright acid tin and Reach compliant
plated for excellent solder-ability. RoHS
• High contact pressure compliant 9
• Constructed under MIL-PRF-8805/7
• Available in Military & Commercial grades 10
• Choice of 4 terminal styles or wire leads
• UL recognized & CSA certified
• B5-21141 qualified to MS27217-1 11

12
Max Mechanical
Series Feature Approvals Circuitry
Rating Life
B1 Ultra Small Subminiature 2A 100,000 n/a SPST, SPDT 13
Ultra Small Subminiature,
B1-5 2A 1,000,000 n/a SPST, SPDT
with Integral Levers 14
50,000 - 250,000 UL (E61705), CSA (LR43865),
B2 Subminiature 7A SPST, SPDT
(varies by part) DSCC (QPL8805)
15
Subminiature with UL (E61705), CSA (LR43865),
B2-5 7A 100,000 SPST, SPDT
Integral Levers DSCC (QPL8805)
UL (E61705), CSA (LR43865), SPST-DB, 16
B3 Double Break Subminiature 8A 1,000,000
DSCC (QPL8805) SPDT-DB
UL (E61705), CSA (LR43865), SPST-DB,
B5 Double Break Miniature 10A 1,000,000 17
DSCC (QPL8805) SPDT-DB
Double Break Miniature, UL (E61705), CSA (LR43865),
B5-7 10A 100,000 DPDT-DB
Two Pole DSCC (QPL8805)
18
Please contact us for individual part numbers and specifications or see our website for information.
www.is-rayfast.com 439