OPB960L51

**OPB960L51** – TT Electronics / Optek  
Slotted Optical Switch – Logic Output (Totem-Pole), 3.18 mm gap

- Type: Photologic® slotted interrupter with open-collector logic output  
- Gap Width: 3.18 mm (0.125")  
- Aperture: 1.27 mm (0.050") on both emitter and sensor sides  
- Output: Totem-pole (push-pull), direct TTL/CMOS compatible  
- Supply Voltage: 4.75 V – 5.25 V (can operate up to 16 V)  
- Logic High: ≥ 4.5 V @ –100 µA  
- Logic Low: ≤ 0.4 V @ 12.8 mA  
- Rise/Fall Time: 70 ns typical  
- Maximum Switching Frequency: > 250 kHz  
- LED Forward Current: 40 mA continuous  
- Power Dissipation: 300 mW  
- Package: 5-pin PCB mount (L51 = 0.315" lead length)  
- Temperature Range: –40 °C to +85 °C