In sourcing discussions, BJ7M-TDT is often placed next to Autonics Proximity Sensor, Autonics Tcn4 Series and Autonics Ben5M Mfr so procurement teams can align budgets and technical requirements effectively.
Autonics BJ7M-TDT Photoelectric Sensor
The Autonics BJ7M-TDT Photoelectric Sensor offers Through-beam type sensing type, 7m, Red LED(650nm), NPN open collector output, 12-24VDC power supply. Manufactured by Autonics under the Autonics Photoelectric Sensors category, this model belongs to the Autonics BJ Series.
| Brand | Autonics |
| Product Type | Photoelectric Sensor |
| Model Number | BJ7M-TDT |
Autonics BJ7M-TDT Photoelectric Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Sensing type | Through-beam type |
| Sensing distance | 7m |
| Sensing target | Opaque material of min. Γ8mm |
| Response time | Max. 1ms |
| Light source | Red LED(650nm) |
| Sensitivity adjustment | Sensitivity adjuster |
| Operation mode | Light ON/Dark ON(set by switch) |
| Power supply | 12-24VDC |
| Current consumption | Emitter/Receiver: Max. 20mA |
| Control output | NPN open collector |
| Environment_Ambient illumination | Sunlight: Max. 11,000lx, Incandescent lamp: Max. 3,000lx (received illumination) |
| Environment_Ambient temperature | -25 to 55β, storage: -40 to 70β |
| Environment_Ambient humidity | 35 to 85% RH, storage: 35 to 85% RH |
| Protection structure | IP65 |
| Connection type | Cable type(Γ3.5, 2m) |
| Material | Case: Polycarbonate+Acrylonitrile butadiene styrene, LED Cap: Polycarbonate, Sensing part: Polymethyl methacrylate,Bracket: SUS304(steel use stainless 304), Bolt: Steel chromium molybdenum, Nut: Steel chromium molybdenum,Sleeve: Brass, Ni-plate |
| Accessories_Common | Fixing bracket, M3 Bolts: 4, M3 Nuts: 4, Adjuster driver |
| Weight | Approx. 115g (approx. 90g) |
The Autonics BJ7M-TDT is a through-beam type photoelectric sensor with a sensing range of 7 metres, making it ideal for detecting opaque objects as small as Γ8mm in high-speed automation setups. It uses a visible red LED (650nm) light source, which allows for quick alignment and stable optical performance. The sensor features a built-in sensitivity adjuster and supports both Light ON and Dark ON modes, selectable via a switch, offering flexibility for different control logic requirements. Powered by a 12β24VDC Β±10% supply with low current consumption of just 20mA per emitter/receiver, the BJ7M-TDT is efficient and easy to integrate with PLCs via its NPN open collector output. Its rugged IP65-rated housing is built from high-strength polycarbonate, stainless steel, and nickel-plated brass, protecting it from dust, moisture, and light mechanical impact. With an operating temperature range of -25Β°C to +55Β°C and resistance to ambient light up to 11,000 lux sunlight, this model is engineered for stable, maintenance-free operation in industrial settings. Learn more on the Autonics Brand Page or more models in our Autonics Photoelectric Sensors category.
The Autonics BJ7M-TDT Compact High Performance Photo Sensor is widely used in automated packaging lines, conveyor-based sorting systems, warehouse pallet detection, and industrial safety zones. In a packaging plant, it can verify the presence of cartons moving through a sealing station, ensuring only correctly placed products move to the next stage. In warehouse automation, its long-range through-beam detection enables reliable pallet position verification even in dusty or low-light environments. On high-speed conveyors, the sensorβs 1ms response time ensures accurate part detection without delays, reducing production downtime. Its strong resistance to ambient light makes it suitable for open factory floors with skylights or fluctuating illumination. For maintenance engineers, the quick installation using the supplied bracket and M3 hardware means minimal setup time. For engineering students, the BJ7M-TDT offers a clear, practical example of how emitter-receiver technology enables precise detection in real-world automation, bridging classroom theory with industrial application.
