
Autonics BH300-DDT Photoelectric Sensor
Autonics BH300-DDT Diffuse Photoelectric Sensor (300 mm, NPN/PNP, IP67)
Compact diffuse reflective photoelectric sensor with 300 mm sensing distance and simultaneous NPN & PNP output.
Ideal for space-constrained automation, packaging machines, and conveyor systems.
The Autonics BH300-DDT is a compact diffuse-reflective photoelectric sensor from the BH Series, designed for reliable short-range object detection in industrial automation. With a 300 mm sensing distance, simultaneous NPN & PNP open-collector outputs, and IP67 protection, it is ideal for harsh environments and tight installation spaces.
Key Features
Diffuse reflective sensing type
Sensing distance up to 300 mm
Simultaneous NPN & PNP open-collector output
Light-ON / Dark-ON selectable
Built-in sensitivity adjuster
Ultra-compact housing (W14 × H34.5 × L28 mm)
High resistance to ambient light & electrical noise
IP67 protection rating
Front (M18 nut) & side mounting supported
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | BH300-DDT |
| Sensing Type | Diffuse reflective |
| Sensing Distance | Up to 300 mm |
| Light Source | Infrared LED (850 nm) |
| Output Type | NPN + PNP open collector (simultaneous) |
| Output Mode | Light-ON / Dark-ON |
| Response Time | ≤ 1 ms |
| Supply Voltage | 12–24 VDC ±10% |
| Load Current | ≤ 100 mA |
| Protection Rating | IP67 |
| Operating Temperature | −25 to +55 °C |
Applications
Packaging machines
Conveyor object detection
Counting & positioning systems
Compact OEM automation machines
Material handling equipment
Space-restricted control panels
What’s in the Box?
Autonics BH300-DDT Photoelectric Sensor
Adjustment screwdriver
M18 fixing nuts / fixing cap
Mounting bracket
Instruction manual
FAQ
Q1. What type of sensor is BH300-DDT?
It is a diffuse reflective photoelectric sensor.
Q2. What is the maximum sensing distance?
Up to 300 mm, depending on object size and reflectivity.
Q3. Does it support both NPN and PNP output?
Yes, it provides simultaneous NPN & PNP open-collector outputs.
Q4. Is this sensor suitable for washdown or dusty areas?
Yes, it has IP67 protection, suitable for harsh environments.
Q5. Can it be mounted in tight spaces?
Yes, its ultra-compact body makes it ideal for compact machines.



