Autonics BJ1M-DDT Photoelectric Sensor
Autonics BJ1M-DDT Diffuse Photoelectric Sensor (1 m, NPN/PNP, IP65)
Medium-range diffuse reflective photoelectric sensor with 1 m sensing distance and NPN/PNP open-collector output.
Ideal for conveyors, packaging lines, and general industrial automation.
The Autonics BJ1M-DDT is a diffuse-reflective photoelectric sensor designed for medium-range object detection without the need for a reflector or separate receiver. With a 1-meter sensing distance, NPN/PNP output, and IP65 protection, it is widely used in packaging, material handling, and OEM automation equipment.
Key Features
Diffuse reflective sensing type
Sensing distance up to 1 m
NPN & PNP open-collector outputs
Light-ON / Dark-ON selectable
Built-in sensitivity adjustment
Compact rectangular BJ housing
Stable detection with ambient light immunity
IP65 protection rating
Cable type (standard cable length)
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | BJ1M-DDT |
| Sensing Type | Diffuse reflective |
| Sensing Distance | Up to 1 m |
| Light Source | Infrared LED (≈850 nm) |
| Output Type | NPN & PNP open collector |
| Output Mode | Light-ON / Dark-ON |
| Response Time | ≤ 1 ms |
| Supply Voltage | 12–24 VDC ±10% |
| Load Current | ≤ 100 mA |
| Protection Rating | IP65 |
| Operating Temperature | −25 to +55 °C |
Applications
Conveyor object detection
Packaging & bottling machines
Counting & positioning systems
Material handling equipment
Compact OEM automation machines
General industrial sensing
What’s in the Box?
Autonics BJ1M-DDT Photoelectric Sensor
Mounting bracket (Bracket A)
Adjustment screwdriver
Mounting screws & nuts
Instruction manual
FAQ
Q1. What type of sensor is BJ1M-DDT?
It is a diffuse reflective photoelectric sensor.
Q2. What is the maximum sensing distance?
Up to 1 meter, depending on object reflectivity.
Q3. Does it support both NPN and PNP outputs?
Yes, both NPN & PNP open-collector outputs are available.
Q4. Is this suitable for dusty environments?
Yes, with IP65 protection, it is suitable for industrial conditions.
Q5. Where is this model commonly used?
In conveyors, packaging lines, and general automation.