The Omron EE-SX870A is a compact U-slot through-beam photoelectric sensor from the SX87 series, designed for detecting small opaque objects at a fixed 5 mm gap. With a minimum object size of 2 mm x 0.8 mm, it targets precision position sensing in tight spaces — think flag detection on a pick-and-place arm or part-presence in a small assembly nest. The 0.17 ms response time and 3 kHz switching frequency keep pace with fast cycle times; your PLC input will need to handle NPN (sinking) logic, and the sensor is fixed in Light-On mode, so plan the interrupt logic accordingly. The 5–24 V DC supply range adds flexibility for common control voltages. The prewired 2 m cable and IP64 rating make it a straightforward fit for enclosed machinery.
Omron EE-SX870A Through-Beam Sensor, U-Slot, 5mm, NPN
MPNEE-SX870A
Omron SX87 series, Through-Beam Photoelectric Sensor, EE-SX870A, U-Slot, NPN, 5-24 V DC, 5 mm Sensing Distance, 0.17 ms Response, 3 kHz Switching Frequency, IP64, 2 m Cable.
$57.14 – $69.62Ref. 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 is the series and key features of the EE-SX870A?
It belongs to the SX87 series and features a compact U-slot design with an indicator light.
Can the EE-SX870A replace an E3Z-T61K 2M without rewiring?
No. The EE-SX870A has a 5 mm sensing distance and a U-slot body, while the E3Z-T61K 2M is a rectangular separate-emitter/sensor with 15 m range. They are not mechanically or functionally interchangeable.
What compliance documentation is available for the EE-SX870A?
The sensor is CE and RU marked. Documentation such as declarations of conformity can be provided with your RFQ.
MPN
EE-SX870A