Beckwith Electronics

Hamburg, Illinois 62045
(618) 232-1139

(618) 232-1172 fax

Contact Us

EAO SECME Division

Discontinued for reference only

1R3  SMT rotary changeover switch

1R3 surface mount rotary changeover switches offer a choice of 2- or 3-position operation to fill a large number of applications. The miniature sealed switches are screwdriver operated to provide dependable semi-snap action. The non-shorting contacts find particular use in telecommunications and video equipment.

  1. 1-pole, gold-plated contacts
  2. Semi-snap action, non-shorting contacts
  3. Gull wing surface mount design
  4. 2- or 3-position screwdriver operated
  5. Sealed for soldering and washing
  6. 800 operations

DescriptionPart Number
2-position, 60° actuation, with stop
09 55251 01
3-position, 360° actuation, no stop
09 65350 01

Gold plated nickel
12 V/10 mA Nominal
50 V/50 mA max
20 mV/0.5 mA min
0.6 W nominal power
<200 M Ohms resistance (initial)
Dielectric strength500 V RMS, 50 Hz
Insulation resistance>50,000 M Ohms, 100 VDC
Switch cap. and between terminals<2 pF at 1 KHz
Operating life800 operations
Nominal rotation angle60° or 360°
Torque (mean value)0.4 N. cm
TerminalsSnPb plated nickel
Operating temperature-25 to +85°C
Storage temperature-40 to +85°C
Damp heat21 days (IEC 68-2-3)
Soldering time260°C<10 sec, 200°C<60 sec
Sealing (IEC 68-2-45)
sealed for soldering and
immersion solvent cleaning.
Max. immersion: 90 sec



Recommended layout
for solder pads

12 mm width, 8mm pitch tape,
180 mm diameter reels of 500 pieces