If youβre not fully sure about BUP-50, taking a closer look at Autonics Proximity Sensor, Autonics Tcn4 Series and Autonics Ben5M Mfr often helps compare reliability, cost, and availability.
Autonics BUP-50 Photoelectric Sensor
The Autonics BUP-50 Photoelectric Sensor offers Through-beam type sensing type, 50mm, Infrared LED(940nm), NPN open collector output, 12-24VDC power supply. Manufactured by Autonics under the Autonics Photoelectric Sensors category, this model belongs to the Autonics BUP Series.

| Brand | Autonics |
| Product Type | Photoelectric Sensor |
| Model Number | BUP-50 |
Autonics BUP-50 Photoelectric Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Sensing type | Through-beam type |
| Sensing distance | 50mm |
| Sensing target | Opaquematerial of min. Γ4mm |
| Response time | Max. 1ms |
| Light source | Infrared LED(940nm) |
| Sensitivity adjustment | Fixed |
| Operation mode | Light ON/Dark ON(set by control wire) |
| Power supply | 12-24VDC |
| Current consumption | Max. 30mA |
| Control output | NPN open collector |
| Environment_Ambient illumination | Sunlight: Max. 11,000lx, Incandescent lamp: Max. 3,000lx (received illumination) |
| Environment_Ambient temperature | -25 to 65β, storage: -25 to 70β |
| Environment_Ambient humidity | 35 to 85% RH, storage: 35 to 85% RH |
| Protection structure | IP66 |
| Connection type | Cable type(Γ4, 2m) |
| Material | Case: Acrylonitrile butadiene styrene, Cap: Polycarbonate |
| Sensing Channel | 1-channel |
| Weight | Approx. 115g |
The Autonics BUP-50 is a U-shaped photoelectric sensor designed with a dependable through-beam sensing type and an extended sensing distance of 50mm, enabling accurate detection of opaque objects as small as Γ4mm. It operates using a stable infrared LED (940nm) light source and delivers a quick response time of max. 1ms, allowing it to perform well in high-speed automation environments. With a fixed sensitivity and selectable Light ON/Dark ON mode (via control wire), this sensor ensures consistent performance with minimal manual adjustment. The 12β24VDC Β±10% power supply and low current consumption of 30mA make it energy-efficient and compatible with a wide range of industrial controllers through its NPN open collector output.
Engineered for rugged environments, the BUP-50 features a durable housing made of ABS and polycarbonate and is built to withstand ambient temperatures from -25Β°C to 65Β°C. Its IP66-rated protection ensures resistance to dust, oil, and water splashesβmaking it suitable for indoor and semi-exposed applications. The sensor maintains stable operation even under strong lighting conditions, including up to 11,000lx sunlight or 3,000lx incandescent lighting. The sensorβs cable-type connection (Γ4, 2m) simplifies integration in tight installation spaces while offering solid electrical contact for uninterrupted operation. To explore more models in this category, visit our Autonics Photoelectric Sensors page.
Trusted by automation engineers and plant technicians, the Autonics BUP-50 is commonly used in component detection, box positioning, and small-part sensing on conveyor lines and assembly stations. Its U-shaped design allows it to operate effectively where side-mount or front-facing sensors may be impractical. Because of its stable sensing, fast response, and high durability, it is well-suited for industries like automotive assembly, consumer electronics, and packaging. For maintenance teams, it offers peace of mind through its low-maintenance design and consistent signal quality. Students and automation trainees also benefit from using this sensor in labs and workshops to understand industrial-grade object detection. To learn more about Autonics and related sensing solutions, visit our Autonics official brand page.







