Middle-stroke Tactile Switch (SMT) B3SL Surface-mounting Switches with a Sealed Structure (Rubber Plunger), Crisp Feel, and Middle Stroke. Available on Embossed Tape Sealed construction conforming to IP67 (IEC 60529) provides high contact reliability in dusty environments. (* Excluding the terminal section.) Crisp click feeling and middle stroke with rubber plunger. Embossed taping package for automatic mounting. A small package containing 100 embossed taping reels is available,in addition to the standard pack- age. RoHS Compliant List of Models 6 6 mm Models Type Contact Plunger Height Operating force Plunger Embossed tape material (OF) color Model Minimum packing unit B3SL Series Silver 3.4 mm 1.96 N 200 gf Yellow- B3SL-1002P 2,000 pcs plated green B3SL-1002P-R100 100 pcs (Flat type) 5.1 mm Gray B3SL-1022P 1,400 pcs (Projected type) 3.4 mm 3.5 N 357 gf Blue B3SL-1005P 2,000 pcs B3SL-1005P-R100 100 pcs (Flat type) 5.1 mm Blue B3SL-1025P 1,400 pcs (Projected type) Note: Orders must be made in multiples of the minimum order. Switches are not sold individually. 1B3SL B3SL Ratings/Characteristics Rating (resistive load) 1 to 50 mA at 3 to 12 VDC Minimum applicable load (reference value) 10 A at 1 VDC (resistive load) Ambient operating temperature -25C to +90C at 60%RH max. (with no icing or condensation) Ambient operating humidity 35% to 85% (at +5 to +35C) Contact form SPST-NO Contact resistance (initial value) 100 m max. Insulation resistance 100 M min. (at 250 VDC with insulation tester) Dielectric strength 250 VAC, 50/60 Hz for 1 min Bounce time 5 ms max. Vibration resistance Destruction: 10 to 55 Hz, 1.5-mm double amplitude 2 Shock resistance Destruction: 1,000 m/s approx. 100 G max. Durability 100,000 operations min. Degree of protection IEC IP67 Washing Not possible Operating Characteristics Operation type B3SL-1002P B3SL-1022P B3SL-1005P B3SL-1025P Item B3SL-1002P-R100 B3SL-1005P-R100 Operating force (OF) 1.96 0.49 N 200 50 gf 3.5 0.8 N 357 82 gf Releasing force (RF) 0.35 N min. 35 gf 0.5 N min. 51 gf Pretravel (PT) 0.3 0.2 mm 0.5 0.2 mm 0.6 0.2 mm 0.8 0.2 mm Model Structure Plunger Cover Contact Fixed dome Contact Dimensions (Unit: mm) B3SL-1002P B3SL-1002P-R100 B3SL-1005P B3SL-1005P-R100 6.2 PCB Pad Terminal Arrangement/ 0.2 6.5 4 (Top View) Internal Connections (Top View) 4 3 2.5 dia. 6.5 3 5 3.4 2 1 2.5 1.2 3 7 0.7 8.5 0.1 B3SL-1022P B3SL-1025P 6.2 0.2 6.5 4 PCB Pad Terminal Arrangement/ (Top View) Internal Connections (Top View) 2.5 dia. 6.5 4 3 3 5 5.1 2 1 2.5 1.2 3 0.7 8.5 0.1 7 Note: Unless otherwise specified, a tolerance of 0.4 mm applies to all dimensions. No terminal numbers are indicated on the Switches. 2