Omron E2E-S05S12-WC-B1 — M5 PNP Miniature Sensor
SKU: E2E-S05S12-WC-B1USD 13.00
M5 stainless-steel inductive proximity sensor, 1.2 mm shielded range, PNP NO, 2 m PVC oil-resistant cable — sized for tight tooling pockets and high-cycle small-part detection.
1-Year Warranty
Full manufacturer warranty
Global Shipping
Worldwide delivery available
Genuine Omron
100% authentic product
Ready to Ship
Usually ships within 24h
In Stock
This item is available for immediate shipment from our warehouse.
Contact for pricing, bulk discounts, and shipping
Product Overview
The E2E-S05S12-WC-B1 is the smallest-bodied member of Omron's E2E-S small-diameter inductive proximity family — a 5 mm-thread M5 cylinder with a 25 mm overall length and a 14 mm thread, designed to fit where M8, M12, or M18 sensors physically cannot. Its sensing face is shielded (flush-mountable), so the housing can sit in a metal bracket or fixture without the operating distance being pulled in by surrounding steel. The sensing distance is 1.2 mm ±10 % with a usable setting range of 0 to 0.84 mm.
Where the M5 sensor fits vs the M8 / M12 family
The E2E-S05S line exists because tool magazines, end-effectors, small-bore syringe and vial-stops, and pick-and-place fingers often have an installation pocket that an M8 barrel simply will not clear. The E2E-S05S12-WC-B1 is the bare-cable, NO-only variant — used where the control cabinet is within reach of a 2 m cable and only one output state (target present / target absent) is needed. Compared with the E2E-S08KS02-MC-B1 (M8 stainless body, 2 mm shielded range, M8 connector) you give up range to gain the diameter reduction; compared with the E2E-S05S12-WC-C1 (NPN NO), you gain the ability to wire directly into a sinking-style input without an inverter.
Wiring, response time, and what to watch for at installation
The DC 3-wire cable is colour-coded per Omron convention: brown = +V (12 to 24 VDC), blue = 0 V, black = output. The output transistor can sink up to 100 mA and the response frequency is 3.5 kHz, making the sensor adequate for small-tool-index verification at typical cycle rates of under 1 kHz. The housing is SUS303-grade stainless steel (not nickel-plated brass like the E2B-M12 family), giving a useful life in coolant mist or sterilise-in-place washdown.
Key Features
- M5 threaded stainless-steel cylindrical body, 25 mm overall length
- 1.2 mm ±10 % shielded sensing distance, 0–0.84 mm usable setting range
- PNP normally-open output, 100 mA sink, DC 3-wire
- 12–24 VDC supply, 3.5 kHz response frequency, 0.5 ms response time
- SUS303 stainless-steel housing — coolant- and oil-resistant, IP67
- Pre-wired 2 m PVC oil-resistant cable
- Operating temperature -25 to +70 °C, no false trigger in coolant mist
- Compatible with all Omron PLC sinking-input cards
- SKU: E2E-S05S12-WC-B1
- Series: E2E-S (Small-diameter inductive proximity)
- Voltage: 12 TO 24 VDC
- I/O: 1 I/O
Best-Fit Applications
- Tool-presence detection on CNC lathes and small drilling machines where the M5 thread fits the limited spindle-nose pocket
- Pick-and-place head detection on small parts feeders verifying that the gripper has picked a vial or syringe component
- End-of-stroke confirmation on small pneumatic cylinders in laboratory automation and medical-device assembly
- Cap- and seal-presence detection on pharmaceutical filling lines below the reach of an M18 sensor
Buying Checklist
- Pick the B1 suffix for PNP NO — most modern Omron PLCs need sourcing outputs from sensors
- Pick the B2 suffix for PNP NC fail-safe logic — used where a broken wire should indicate 'safe'
- Pick the C1 suffix for NPN NO if your controller expects sinking input
- Pick the 2M cable for normal cabinet distances, the 5M for rotary tables and moving tracks
- Pair with CP1W-ID211 or CJ1W-ID211 for cost-effective 24 V sinking inputs — the entire CP/CJ/NJ family can read this sensor directly
- Use the E2E-S08KS02-MC-B1 M8 sibling when 1.2 mm range isn't enough and 4.7 mm clearance is — same PNP NO logic, more sensing distance
Technical Specifications
| Model | E2E-S05S12-WC-B1 |
|---|---|
| Series | E2E-S (Small-diameter inductive proximity) |
| Sensing Head Size | M5 (5 mm threaded body) |
| Housing Material | SUS303 stainless steel |
| Body Length | 25 mm overall, 14 mm thread length |
| Mounting Type | Shielded (flush-mountable) |
| Sensing Distance | 1.2 mm ±10 % |
| Usable Setting Range | 0 to 0.84 mm |
| Output Configuration | PNP open collector, normally open (B1 suffix) |
| Load Current | ≤ 100 mA |
| Supply Voltage | 12 to 24 VDC (10 to 30 VDC) |
| Current Consumption | ≤ 10 mA at 24 VDC |
| Operating Temperature | -25 to +70 °C |
| Storage Temperature | -40 to +85 °C |
| Compatible PLC Inputs | All Omron sinking-input / PNP-reading DC input cards (CP1W-ID211, CJ1W-ID211, NX-ID5342, NX-OD4121 with sourcing output) |
Resources & Downloads
FAQ for E2E-S05S12-WC-B1
Is the E2E-S05S12-WC-B1 PNP or NPN?
PNP. The 'B' in the suffix B1 stands for PNP, and the '1' stands for normally open. So the E2E-S05S12-WC-B1 is a PNP normally-open sensor that sources current to the load when the target enters the sensing range. The Omron schematic shows brown = +V, blue = 0 V, black = output (load switches to +V when active). For NPN behaviour in the same M5 body, order the E2E-S05S12-WC-C1.
What's the difference between the E2E-S05S12-WC-B1 2M and the 5M variant?
Identical sensor — same sensing range, output, and body — only the cable length differs. The 2M (this SKU) covers typical fixed tooling within reach of the control cabinet; the 5M (E2E-S05S12-WC-B1 5M) is used on moving tracks, rotary tables, or where the sensor must reach back to a remote junction box. Choose by measuring the longest cable run you need; do not coil excess — the extra inductance can cause nuisance triggering on very fast event counting.
What's the smallest drill size needed to mount the M5 body?
4.7 to 5.0 mm is correct. Drilling at 5.0 mm gives a snug interference fit, drilling at 4.7 mm gives a slight clearance. Anything under 4.5 mm risks sensor fracture during tightening; anything over 5.1 mm lets the sensor tilt under vibration. Use the supplied locknut on the back side and torque to roughly 0.6 N·m — over-tightening crushes the M5 thread, under-tightening lets the sensor rotate and shifts the actual sensing point.
Can the E2E-S05S12-WC-B1 be wired directly to an Omron CP1W-ID211?
Yes. The CP1W-ID211 (and the CJ1W-ID211, NX-ID5342, NX-OD4121 as input cards) all read 24 VDC sourcing-output sensors directly. Wire brown to the +24 V terminal, blue to common (0 V), and black to the input channel. The sensor sources current into the input when the target is detected, which the input card sees as a logic-high state. No resistor is required and no inverter is needed.
Similar Products
Explore related Omron models often viewed alongside this product.
