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| Back Mechanical Key Switch (Hinged) Hinged Design Developed through Human Engineering Quick, superior snap action through hook-type hinge construction. Available with 1 or 2 LEDs or without LEDs. Available in 8 hinge button colors for a total of 56 button color/LED variations. Used in audio equipments, office equipments, transmitters, measuring instruments, TVs, and VCRs. B3J Ordering Information Color of hinged button Light gray Black Orange Yellow Blue Green White Light green B3J-1000 B3J-1100 B3J-1200 B3J-1300 B3J-1400 B3J-1500 B3J-1600 B3J-1700 No LED Red B3J-2000 B3J-2100 B3J-2200 B3J-2300 B3J-2400 B3J-2500 B3J-2600 B3J-2700 One LED Yellow B3J-3000 B3J-3100 B3J-3200 B3J-3300 B3J-3400 B3J-3500 B3J-3600 B3J-3700 Green B3J-4000 B3J-4100 B3J-4200 B3J-4300 B3J-4400 B3J-4500 B3J-4600 B3J-4700 Red/Yellow B3J-5000 B3J-5100 B3J-5200 B3J-5300 B3J-5400 B3J-5500 B3J-5600 B3J-5700 Two LEDs Red/Green B3J-6000 B3J-6100 B3J-6200 B3J-6300 B3J-6400 B3J-6500 B3J-6600 B3J-6700 Yellow/Green B3J-7000 B3J-7100 B3J-7200 B3J-7300 B3J-7400 B3J-7500 B3J-7600 B3J-7700 Structure Hinged button LED indicator LED holder B3F-4050 1 B3J B3J Specifications Ratings Switching capacity Insulation voltage 5 to 24 VDC, 1 to 50 mA (resistive load) 30 VDC Characteristics Contact configuration Contact resistance Insulation resistance Dielectric strength Bounce time Vibration Shock Life expectancy Ambient temperature Ambient humidity Weight SPST-NO 100 m max. (at 5 VDC, 1 mA) 100 M min. (at 250 VDC) 500 VAC, 50/60 Hz for 1 min 5 ms max. Malfunction: 10 to 55 Hz, 1.5-mm double amplitude Destruction: 1,000 m/s2 min. (approx. 100G min.) Malfunction: 100 m/s2 min. (approx. 10G min.) 3,000,000 operations min. -25C to 70C (with no icing) 35% to 85% Approx. 1.5 to 1.7 g Operating Characteristics Item Operating force (OF) Reset force (RF min.) Pretravel (PT) 0.29 N (30 gf min.) 0.3+0.2/-0.1 mm B3S-1000 1.270.49 N (13050 gf) Engineering Data Operating Force vs. Stroke (Typical) Operation force (gf) Stroke S (mm) Built-in LED Performance Item Forward voltage VF Forward current IF Permissible loss P Reverse voltage VR Note: Standard value (V) Standard value (mA) Absolute maximum value (mW) Absolute maximum value (V) 2.0 20 84 5 Red Yellow 2.0 20 84 5 Green 2.1 20 84 5 Since the built-in LED doesn't contain any limiting resistors, externally connect limiting resistors within the limits shown in the above table. 2 B3J B3J Dimensions Note: All units are in millimeters unless otherwise indicated. Unless otherwise specified, a tolerance of 0.4 mm applies to all dimensions. Types with no LED B3J-1j00 PCB Mounting (Top View) Two 1.80.05 dia.* Panel Cutout Terminal Arrangement /Internal Connections (Top View) 12 180.2 12.50.1 19.60.2 6 50.1 90.1 Four 1.20.05 dia. 13.60.2 10.30.2 90.2 3.5 13.80.5 6.8 120.2 6 3.5 *Fit the projection of the Switch into this hole to secure the Switch. 90.1 1 LED Types B3J-2j00, -3j00, -4j00 PCB Mounting (Top View) 2.540.1 Two 1.80.05 dia.* 12 90.1 12.5"0.1 6 50.1 120.2 90.1 Six 1.20.05 6.8 13.60.2 6 10.30.2 90.2 3.5 90.1 13.80.5 *Fit the projection of the Switch into this hole to secure the Switch. 19.60.2 Panel Cutout Terminal Arrangement /Internal Connections (Top View) 180.2 3.5 2 LED Types B3J-5j00, -6j00, -7j00 PCB Mounting (Top View) 3.460.1 2.540.1 2.540.1 Two 1.80.05 dia.* 12 90.1 12.50.1 6 50.1 90.1 Eight 1.20.05 dia. 6.8 13.60.2 19.60.2 Panel Cutout Terminal Arrangement /Internal Connections (Top View) 180.2 120.2 10.30.2 90.2 6 3.5 3.5 90.1 13.80.5 *Fit the projection of the Switch into this hole to secure the Switch. 3 B3J B3J Precautions * * * * * * Do not apply additional force to the plunger once it has stopped moving. Solder at 2605C within five seconds and within two tries. The Switches are not sealed and must be protected with a resin sheet as shown below when used in dust-prone environments. Do not wash the Switches. The Switches may be damaged by solvents if either wiped off using solvents of immersed in solvents. Do not allow flux or flux foam to penetrate onto the component side of the PCB. Use a single-sided PCB with a thickness of 1.6 mm. The Switches may be damaged due to instability or heat from soldering if other PCBs (other thickness or through holes) are used. If is it necessary to use another PCB, test the compatibility and processing in advance. Indicators * Connect a limiting resistor to the indicator. Since the Switch dos not contain any limiting resistor, obtain a limiting resistance according to the following formula depending on the voltage to be used so as to satisfy indicator characteristics. Limiting Voltage used [V] - Indicator forward voltage [VF] resistance = Indicator forward current [IF] [R] () Forward current IF (mA) Ambient temperature Ta (C) Forward current IF (mA) Red Yellow Green Forward voltage VF (V) 4 |
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