1. Product Description: Illuminated Tactile Switches (B3W-9 series)

️· Type: SPST-NO Momentary
️· Variants: Standard and High-force
️· Application: Designed for illuminated tactile sensing.

2. Electrical Characteristics (Initial)

Characteristic	Standard-Force (B3W-90)	High-Force (B3W-92)
Switching Capacity	1-50mA, 5-24VDC (resistive)	Same as Standard-Force
Contact Resistance	100mΩ max. (1mA, 5VDC)	Same as Standard-Force
Insulation Resistance	100MΩ min. (250VDC)	Same as Standard-Force
Dielectric Strength	500VAC, 50/60 Hz (1 min)	Same as Standard-Force
Bounce Time	5ms max.	Same as Standard-Force
Vibration Resistance	Malfunction: 10-55Hz, 1.5mm amplitude	Same as Standard-Force
Shock Resistance	Destruction: 1000 m/s²; Malfunction: 100 m/s²	Same as Standard-Force
Operating Temperature	-25°C to 70°C	Same as Standard-Force
Operating Humidity	35% to 85%	Same as Standard-Force
Life Expectancy (Switch Section)	1,000,000 operations min.	300,000 operations min.

3. Operating Characteristics

Item	Standard-Force (B3W-90)	High-Force (B3W-92)
Operating Force (OF) max.	160 gf	230 gf
Releasing Force (RF) min.	20 gf	50 gf
Pretravel (PT)	0.25+0.2/-0.1 mm	0.25+0.2/-0.1 mm

4. LED Specifications (Color and Electrical)

LED Color	Red	Green	Green (High Brightness)	Yellow	Blue
Max. Forward Current (IFM)	27 mA	27 mA	27 mA	45 mA	27 mA
Recommended Operating Current (IF)	20 mA	20 mA	10 mA	20 mA	10 mA
Typical Forward Voltage (VF)	1.8 V	2.1 V	3.7 V	2.4 V	3.7 V
Max. Reverse Voltage (VR)	5 V	5 V	5 V	5 V	5 V
Operating Temperature	-25°C to 70°C	-25°C to 70°C	-25°C to 70°C	-25°C to 70°C	-25°C to 70°C

| Note: For Red/Green combination, recommended operating current is 12mA for red, 20mA for green.

5. Important Notes and Guidelines

️· Polarity: Pay attention to LED polarity (anode and cathode - marked on Dimensions).
️· Limiting Resistors: The switch *does not* have built-in limiting resistors. Use a limiting resistor, calculated with the formula: R = [(Voltage used) - (LED Forward Voltage)] / (LED Forward Current).