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Omron EE-SX771A — 5 mm Slot Sensor, L Shape, NPN Dark ON
SKU: EE-SX771AUSD 13.80
Omron EE-SX771A is an L-shaped 5 mm slot photomicrosensor, NPN Dark-ON, 5 to 24 VDC, infrared LED, M3 screw mount, 2 m cable.
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Product Overview
The Omron EE-SX771A is an L-shaped photomicrosensor (slot type) with a 5 mm slot width, manufactured by Omron Corporation. Hengyixin Automation ships this sensor from our Xiamen warehouse with a 30-day DOA return window and a datasheet PDF included in the box.
The set is one head with the emitter and receiver facing across a 5 mm slot. Output is NPN open-collector, Dark-ON, turning ON when the beam is broken. A red indicator lights when there is no incident light (output ON). Power is 5 to 24 VDC, load current up to 100 mA, and the GaAs infrared LED runs at 940 nm. The PBT case is IP64; the head fixes with two M3 screws.
The cable is 2 m, pre-wired. Minimum sensing object is opaque, 2 x 0.8 mm; differential distance is 0.025 mm. For the Light-ON twin of this L-shaped sensor, pick the EE-SX772A. For the T-shaped Dark-ON version, pick the EE-SX871A.
Key Features
- L-shaped 5 mm slot photomicrosensor, NPN open-collector Dark-ON
- 5 to 24 VDC supply, 35 mA max, 100 mA load, GaAs infrared LED 940 nm
- Red indicator that lights when there is no incident light (output ON)
- M3 screw mount, PBT case, IP64, 2 m pre-wired cable
- SKU: EE-SX771A
- Series: Omron EE-SX77 / EE-SX87 photomicrosensor
- Voltage: 5 TO 24 VDC
Best-Fit Applications
- Detecting a small registration mark on a label as it passes through a 5 mm slot on a labelling head
- Counting thin plastic shims dropping through a slot on a feeder bowl, where the L-shape keeps the head flat against the bowl wall
- Verifying a tab is present on a connector as it leaves the press, with the red indicator visible at a glance
Buying Checklist
- Pick the EE-SX771A for an L-shaped 5 mm slot sensor with NPN Dark-ON output.
- Pick the EE-SX772A instead when the PLC logic needs the Light-ON variant of the same L-shaped sensor.
- Pick the EE-SX870A instead when the sensor must be T-shaped rather than L-shaped.
Technical Specifications
| Manufacturer | Omron Corporation (Japan) |
|---|---|
| Series | Omron EE-SX77 / EE-SX87 photomicrosensor |
| Model / SKU | EE-SX771A |
| Sensing Method | Slot type, through-beam (non-modulated) |
| Slot Width | 5 mm |
| Light Source | GaAs infrared LED, peak wavelength 940 nm |
| Output Type | NPN open collector, Dark-ON |
| Standard Sensing Object | Opaque, 2 x 0.8 mm min |
| Supply Voltage | 5 to 24 VDC +/-10%, ripple 10% p-p max |
| Current Consumption | 35 mA max |
| Load Current | 100 mA max |
| Indicator / Mounting / IP | Red (no incident light); M3 screw; IP64 |
FAQ for EE-SX771A
What does the Omron EE-SX771A detect?
Anything opaque that fits through a 5 mm slot. The minimum sensing object is 2 x 0.8 mm. The output is Dark-ON, so it turns ON when the beam is broken (i.e. when a part is in the slot).
EE-SX771A vs EE-SX772A -- what is the difference?
Output logic. Both are L-shaped 5 mm slot sensors with NPN open-collector output. The SX771A is Dark-ON (output ON when the beam is broken); the SX772A is Light-ON (output ON when the beam is received). Pick by what the PLC input expects.
Does the EE-SX771A need an amplifier?
No. The amplifier is built into the head. Wire the 2 m cable straight to a 5 to 24 VDC supply and a DC input; no separate amplifier unit is needed.
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