H-series Micro Diffuse Photoelectric Sensor (M3-M6)

Name: H-series Micro Diffuse Photoelectric Sensor (M3-M6)
Brand: DAIDISIKE
SKU: h-series-micro-diffuse-photoelectric-sensor
Availability: InStock

Photoelectric-range detection (5-200mm) in an M3-M6 threaded barrel the size of a proximity switch.

H-series Micro Diffuse Photoelectric Sensor (M3-M6) - dimensional drawing

🔍 Click to enlarge · 1/6

Technical Specifications

Model	H0330/H0340 (M3), H0450/H0470 (M4), H05100/H05130 (M5), H06150/H06200 (M6), each in N1/P1/N2/P2, 32 models total
Output type	N1 = NPN N.O., P1 = PNP N.O., N2 = NPN N.C., P2 = PNP N.C.
Detection method	Diffuse-reflective
Sensing range	M3: 5-30mm / 5-40mm; M4: 10-50mm / 10-70mm; M5: 15-100mm / 15-130mm; M6: 20-150mm / 20-200mm (all adjustable)
Light source	940nm infrared light
Housing material	Stainless steel
Operating voltage	10-30VDC
Load current	120mA
Response frequency	100Hz
Response time	5ms
Protection rating	IP65

Overview

The H-series (H03/H04/H05/H06) is a family of miniature diffuse-reflective photoelectric sensors housed in threaded cylindrical (M3/M4/M5/M6) stainless-steel barrels. Each thread size is offered in two adjustable sensing-range bands, with NPN/PNP output and N.O./N.C. logic, for 32 part numbers in total.

It targets machine builders and system integrators who need photoelectric-level detection range but only have proximity-switch-level mounting space: robotic grippers, precision jigs/fixtures, vibratory feeder tracks, and compact 3C/semiconductor equipment.

Features & Benefits

Photoelectric sensing range in a proximity-switch footprint

M3 to M6 threaded barrels detect from 5mm up to 200mm, varying by thread size — a range that inductive proximity sensors of the same barrel size cannot match, since same-size inductive sensors are typically limited to a 1-2mm sensing distance.

Two adjustable sensing-range bands per thread size

Each of the four thread sizes (M3/M4/M5/M6) offers two selectable range bands (e.g., M3: 5-30mm or 5-40mm; M6: 20-150mm or 20-200mm), and sensitivity within each band is adjustable, giving designers a distance option that fits the actual working gap.

Threaded-barrel mounting — single hole, two nuts, no bracket

The cylindrical threaded housing installs through a single drilled hole and is secured with two lock nuts, giving repeatable positioning and quick swap-out in confined mechanisms without needing a mounting bracket.

Stainless-steel housing with IP65 protection

The barrel is stainless steel and rated IP65 (dust-tight, protected against water jets), so the sensor can be mounted directly on robot arms and vibratory feeders exposed to knocks, dust, and washdown-adjacent conditions rather than being confined to a clean bench setup.

32-model matrix covering every common output/logic combination

Four thread sizes x two range bands x NPN/PNP x N.O./N.C. equals 32 stocked part numbers, so the correct output type for a given PLC input card or control logic is available off the standard model list without custom wiring.

940nm infrared emitter for ambient-light immunity

The sensor uses an infrared (invisible) light source at 940nm, so its detection is not disturbed by changes in factory lighting and it does not project a visible light spot that could interfere with a nearby vision inspection station.

10-30VDC wide supply range, 5ms response, IP65 diffuse detection

Operates on a standard 10-30VDC industrial supply with a 120mA load current, 5ms response time and 100Hz response frequency, matching common industrial control-cabinet power and standard-speed line requirements.

Applications

Part-presence check on robotic/pneumatic gripper jaws — The small threaded profile fits directly into gripper structures, and the photoelectric sensing range covers the typical gap when holding a workpiece.

In-position detection inside precision jigs and assembly fixtures — Single-hole threaded mounting suits the compact interior of jigs and fixtures without needing extra bracket space.

Small-parts detection on vibratory bowl feeder tracks — The 940nm infrared source resists ambient light interference, adapting to the lighting changes common at vibratory feeder stations.

Compact detection inside semiconductor and 3C electronics equipment — Starting from an M3 thread, the sensor's outer diameter is among the smaller options in this photoelectric category, suiting the limited installation space inside equipment enclosures.

Non-metallic or mixed-material part detection where inductive sensors fail — Diffuse-reflective photoelectric detection does not depend on the target being conductive, overcoming the metal-only limitation of same-size inductive sensors.

Feeder or conveyor edge detection in confined machine frames — The slender threaded barrel can be mounted through narrow frame structures where space is limited.

Retrofitting existing proximity-switch mounting holes with a longer-range sensor — M3-M6 thread sizes correspond to common proximity-switch dimensions, giving good hole compatibility when retrofitting.

Models & Ordering Information

M3 (H03)

H0330N1H0330P1H0330N2H0330P2H0340N1H0340P1H0340N2H0340P2

H0330: 5-30mm adjustable; H0340: 5-40mm adjustable

M4 (H04)

H0450N1H0450P1H0450N2H0450P2H0470N1H0470P1H0470N2H0470P2

H0450: 10-50mm; H0470: 10-70mm

M5 (H05)

H05100N1H05100P1H05100N2H05100P2H05130N1H05130P1H05130N2H05130P2

H05100: 15-100mm; H05130: 15-130mm

M6 (H06)

H06150N1H06150P1H06150N2H06150P2H06200N1H06200P1H06200N2H06200P2

H06150: 20-150mm; H06200: 20-200mm

How to Select

Step 1 — Choose the thread size (M3/M4/M5/M6) based on the available mounting hole diameter in your mechanism.
Step 2 — Choose the sensing-range band that fits your actual working distance: M3: 5-30mm or 5-40mm; M4: 10-50mm or 10-70mm; M5: 15-100mm or 15-130mm; M6: 20-150mm or 20-200mm, leaving adjustment margin within the band.
Step 3 — Choose NPN or PNP based on your PLC input card: NPN (sinking) uses suffix N1 (N.O.) / N2 (N.C.); PNP (sourcing) uses suffix P1 (N.O.) / P2 (N.C.).
Step 4 — Choose N.O. or N.C. based on your control logic: N.O. (suffix 1) turns the output on when an object is detected; N.C. (suffix 2) turns the output off when an object is detected.
Step 5 — Confirm supply and environment: all models run on 10-30VDC, are rated IP65, use a stainless-steel housing, and a 940nm infrared light source.
Model-number quick reference: H0330P1 = M3 thread, 5-30mm band, PNP, N.O.

📘 Need the full method? NPN vs PNP Sensor Outputs Explained

When NOT to specify the H-series — and what to use instead

Dark, matte-black, or steeply angled targets near the outer edge of the stated range

Why not: Sensing ranges (e.g. 5-30mm up to 20-200mm) are diffuse-reflective and depend on light reflected back from the target surface, so a low-reflectivity or angled target will trigger at less than the rated range.

Use instead: a through-beam sensor pair, which is unaffected by target color or angle

Working distance beyond 200mm

Why not: The largest range in this M3-M6 line-up is the M6 (H06200) at 20-200mm adjustable; no model in this series reaches further.

Use instead: the M18 diffuse series (up to 3 m) or a through-beam pair for longer range

Personnel guarding or any safety-related interlock

Why not: This is a standard industrial presence sensor; no safety rating is documented for the series.

Use instead: a safety-rated light curtain or safety interlock

The target is a clear film or transparent glass part

Why not: Diffuse-reflective detection in this series relies on light reflected from the target surface, which a transparent target may not return reliably.

Use instead: a through-beam sensor pair

Specifications we do not publish yet

We only publish a figure once we are confident it is true. The items below are still being validated through further testing and real-world customer feedback, so for now we would rather leave them open than guess. If one of them matters to your design, ask us for the latest validated status.

Hysteresis (differential travel)
Minimum detectable object size
Operating and storage temperature range
MTBF or expected service life
Cable/connector type
Applicable certification standards beyond 'available on request'

Frequently Asked Questions

What is the sensing range of the M3 threaded photoelectric sensor?

The M3 (H0330) model has an adjustable sensing range of 5-30mm, and the M3 (H0340) model has an adjustable range of 5-40mm.

What is the largest sensing distance available in the H-series?

The M6 (H06200) model offers an adjustable sensing range of 20-200mm, the largest range in this M3-M6 series.

Does the H-series support both NPN and PNP output?

Yes. Each thread size and range option is available in NPN N.O. (N1), PNP N.O. (P1), NPN N.C. (N2), and PNP N.C. (P2), for 32 part numbers total.

What is the housing material and protection rating?

The housing is stainless steel, rated IP65 for dust and water-jet protection.

What light source does the sensor use?

A 940nm infrared (IR) emitter, which is invisible light and not affected by changes in ambient factory lighting.

What is the operating voltage and load current?

10-30VDC operating voltage with a 120mA load current.

What is the response time and response frequency?

5ms response time and 100Hz response frequency — a standard performance level for micro photoelectric sensors, not marketed as a high-speed feature.

How is the sensor mounted?

It has a threaded cylindrical (M3/M4/M5/M6) barrel that installs through a single drilled hole and is secured with two lock nuts, requiring no separate mounting bracket.

Can this sensor detect non-metallic parts?

Yes. It uses diffuse-reflective photoelectric detection, which senses reflected light from the target surface rather than relying on the target being metallic — unlike inductive proximity sensors, which only detect metal.

What is the difference between the N1/P1 and N2/P2 suffixes?

N1/P1 are normally-open (N.O.) outputs that activate when an object is detected; N2/P2 are normally-closed (N.C.) outputs that de-activate when an object is detected.

Are certification documents available for this sensor?

Certification documents are available on request.