The Omron EE-SX871 is a through-beam photoelectric sensor from the SX87 series, designed for tight spaces and small-target detection. It detects opaque objects as small as 2 mm x 0.8 mm at a 5 mm gap, with a fast 0.17 ms response and 3 kHz switching capability. Output is NPN, 100 mA max load, operating on 5-24V DC. The L-slot body style (18 x 13 x 21 mm) mounts with right-angle sensing, making it a common fit for placement detection in assembly stations, small-part conveyors, and pick-and-place nests.
OMRON EE-SX871 Photoelectric Sensor, NPN, 5 mm Through-Beam
MPNEE-SX871
OMRON EE-SX871 Series SX87, 5-24V DC, NPN, 5 mm Sensing Distance, Through-Beam Photoelectric Sensor.
$55.45 – $67.39Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Series | SX87 |
| Parameter | Value |
|---|---|
| Sensing method | Through-Beam |
| Response time | 0.17 msec |
| Parameter | Value |
|---|---|
| Supply voltage | 5-24V DC |
| Parameter | Value |
|---|---|
| IP rating | IP64 |
| Operating temperature, max. | 131 °F |
| Parameter | Value |
|---|---|
| Body material | PBT |
| Parameter | Value |
|---|---|
| Standards / approvals | CE; RU |
Product details
Frequently asked questions
What are the key ratings of the EE-SX871?
It is a through-beam NPN sensor with 5 mm sensing distance, 5-24V DC supply, 0.17 ms response time, 3 kHz switching frequency, IP64, and detects opaque objects as small as 2 mm x 0.8 mm.
What series does the EE-SX871 belong to?
It is part of the SX87 series from Omron, which features a compact L-slot body style.
MPN
EE-SX871