Autonics BTF1M-TDTL Ultra-Thin Through-Beam Photoelectric Sensor (1 m, NPN, IP67)
Ultra-slim 3.7 mm flat through-beam photoelectric sensor with 1 m sensing distance and NPN transistor output.
Ideal for tight installation spaces, conveyors, PCB lines, and compact automation machinery.
The Autonics BTF1M-TDTL is an ultra-thin flat through-beam photoelectric sensor with a body thickness of only 3.7 mm, enabling installation in extremely narrow spaces. With a maximum sensing distance of 1 meter, NPN open-collector output, and IP67 protection, it provides reliable detection in industrial automation, conveyors, PCB handling, and packaging equipment.
Ultra-thin flat design—only 3.7 mm thickness
Through-beam sensing method
Maximum sensing distance: 1 m
Detects opaque objects ≥ Ø 2 mm
NPN open-collector transistor output
Light-ON/Dark-ON models available
Built-in operation (red) & stability (green) indicators
IP67 protection rating
SUS304 stainless steel mounting brackets
Excellent resistance to vibration, shock, and electrical noise
| Parameter | Specification |
|---|---|
| Model | BTF1M-TDTL |
| Series | BTF |
| Sensor Type | Photoelectric – Through-Beam |
| Sensing Distance | 1 m |
| Min. Sensing Target | ≥ Ø 2 mm (opaque) |
| Light Source | Red LED |
| Peak Wavelength | 650 nm |
| Response Time | ≤ 1 ms |
| Output Type | NPN open collector |
| Supply Voltage | 12–24 V DC ±10% |
| Load Current | ≤ 50 mA |
| Protection Rating | IP67 |
| Operating Temperature | −25 to +55 °C |
Conveyor object detection
PCB & electronic component handling
Packaging machinery
Printing & labeling machines
Compact OEM automation systems
Tight-space industrial installations
BTF1M-TDTL Emitter
BTF1M-TDTL Receiver
Stainless steel mounting brackets
M2 mounting bolts
Instruction manual
Q1. What makes the BTF1M-TDTL unique?
Its ultra-thin 3.7 mm flat body is ideal for very tight installation spaces.
Q2. What is the sensing distance of this model?
Up to 1 meter (through-beam type).
Q3. Is this sensor suitable for harsh environments?
Yes, it has IP67 protection and industrial-grade housing.
Q4. What output does this model provide?
NPN open-collector transistor output.
Q5. Can it detect small objects?
Yes, opaque objects ≥ Ø 2 mm can be reliably detected.
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