PM-K44 Sn 5mm NPN Small U-shaped Micro Photoelectric Sensor OJ72

Description:
The PM-K44 is a compact U-shaped micro photoelectric sensor engineered for precise short-range detection within a fixed 5 mm sensing distance. Designed with an amplifier built in, it offers fast and stable operation suitable for miniature automation machinery, robotics, and precision assembly applications. The sensor detects opaque objects as small as 0.8 × 1.8 mm, making it ideal for micro-part presence verification, counting, and positioning. With excellent repeatability, high light immunity, and robust mechanical strength, the PM-K44 provides reliable performance even under vibration, shock, or challenging ambient conditions. The K-type housing and 1 m cable make installation easy in space-limited environments.
Feature:
Sensing range: Fixed 5 mm (0.197 in)
Minimum sensing object: 0.8 × 1.8 mm opaque object
Hysteresis: 0.05 mm or less
Repeatability: 0.03 mm or less
Supply voltage: 5–24 V DC ±10% (Ripple P-P 10% or less)
Current consumption: 15 mA or less
Output type: NPN open-collector transistor
Maximum sink current: 50 mA
Residual voltage: 0.7 V or less at 50 mA, 0.4 V or less at 16 mA
Output operation: Light ON / Dark ON (two outputs built in)
Response time: 20 µs or less (light received), 100 µs or less (light interrupted)
Operation indicator: Vermilion LED
Ambient temperature: -25 to +55°C (Storage -30 to +80°C)
Ambient humidity: 35–85% RH
Ambient illuminance: 1,000 lx (fluorescent light)
Voltage withstandability: 1,000 V AC for 1 minute
Insulation resistance: 50 MΩ or more (250 V DC megger)
Vibration resistance: 10–2,000 Hz, 1.5 mm amplitude, 2 hours per axis
Shock resistance: 15,000 m/s² (approx. 1,500 G)
Emitting element: Infrared LED, 940 nm
Material: PBT enclosure; polycarbonate slit cover
Cable: 4-core cabtyre cable, 1 m
Wiring length: Extension up to 100 m possible with 0.3 mm² cable
Weight: Approx. 15 g
Small-size K-type with cable construction