Series MRB
Miniature PCB Process Sealed Rotaries
General Specifications
Electrical Capacity (Resistive Load)
Logic Level:
0.4VA maximum @ 28V AC/DC maximum
(Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V)
Note: See Supplement Index to find explanation of operating range.
Other Ratings
Contact Resistance:
Insulation Resistance:
Dielectric Strength:
Mechanical Life:
Electrical Life:
80 milliohms maximum
100 megohms minimum @ 500V DC
500V AC minimum for 1 minute minimum
30,000 operations minimum
10,000 operations minimum
Operating Torque:
Contact Timing:
Indexing:
0.04Nm average
Nonshorting (break-before-make)
45° for On-On-On & 90° for On-None-On
Materials & Finishes
Shaft:
Bushing:
Brass with nickel plating
Zinc alloy with nickel plating
Steel with tin plating
Beryllium copper spring with gold plating
Copper with gold plating
Brass with tin plating
Frame/Bracket:
Movable Contacts:
Stationary Contacts:
Terminals:
G
Base:
Polyamide
Environmental Data
Operating Temperature Range:
Humidity:
–10°C through +70°C (+14°F through +158°F)
90 ~ 95% humidity for 96 hours @ 40°C (104°F)
Vibration:
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
Shock:
Sealing:
50G (490m/s2) acceleration (tested in 3 right angled directions, with 5 shocks in each direction)
Use of optional o-ring AT535 with MRB meets IP67 of IEC60529 specifications
Installation
Mounting Torque:
Cap Installation Force:
.686Nm (6.08 lb•in)
19.6 ~ 29.4N (4.41 ~ 6.61 lbf)
PCB Processing
Soldering:
Wave Soldering Recommended: See Profile B in Supplement section
Manual Soldering: See Profile B in Supplement section
Cleaning:
Automated cleaning. See Cleaning specifications in Supplement section.
Standards & Certifications
The MRB Series rotaries have not been tested for UL recognition or CSA certification.
These switches are designed for use in a low-voltage, low-current, logic-level circuit.
When used as intended in a logic-level circuit, the results do not produce hazardous energy.
G28
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