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Omron EE-SX871 — Interface & Transceivers
Omron

Omron EE-SX871 Through-Beam Sensor, NPN Light-ON, 5 mm, 5 V

MPNEE-SX871
Active

Omron EE-SX871 through-beam photomicrosensor, NPN open-collector Light-ON output, 5 mm sensing distance, 5 V supply, chassis mount with M3 screw, bulk package.

$39.74Ref. price · indicative, final on quote
EE-SX871 datasheet
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

EE-SX871 Technical Specifications
ParameterValue
Mounting_typeChassis Mount, M3 Screw
Operating temperature high-25°C to 55°C(TA)
Output_typeNPN - Open Collector/Light-ON
Package_typeBulk
Sensing_typeThrough-Beam
Product_statusActive
Supply_voltage_v5.0
Switching_current_a0.035
Sensing_distance_max_mm0.197

Product details

Through-beam slot sensor, fixed 5 mm gap

The Omron EE-SX871 is a through-beam photomicrosensor with a fixed 5 mm sensing slot. Output is NPN open-collector, active when the beam is uninterrupted (Light-ON). Supply is fixed at 5 V DC. The housing mounts via M3 screws to a chassis or bracket — no DIN rail clip, so plan for a drilled panel or custom bracket.

Temperature range and environment

Rated for -25°C to 55°C ambient. That covers most indoor industrial cabinets and light-duty automation, but not freezer or outdoor direct-sun applications. The through-beam design is immune to ambient light interference in the slot, but the housing is not sealed — no IP rating listed, so keep it away from washdown zones or condensation-prone areas.

Frequently asked questions

What is the output type of EE-SX871?

NPN open-collector, Light-ON. The output sinks to ground when the light beam is uninterrupted. No internal pull-up resistor — you must add one externally to the logic supply.

Is EE-SX871 active or obsolete?

Active. The lifecycle status is current production — no discontinuation notice. It remains a standard catalog item for Omron.

What is the supply voltage for EE-SX871?

5 V DC, fixed. Not a wide-range supply — must match the control logic rail. Do not exceed 5 V without checking the absolute maximum ratings in the datasheet.

Does EE-SX871 require an external pull-up resistor?

Yes. The NPN open-collector output has no internal pull-up. Connect a resistor (typically 1 kΩ to 10 kΩ) from the output pin to your logic supply to get a valid high-level when the beam is blocked.