Q08 Series Square Inductive Proximity Sensor (Q082.5T / Q082.5F)

Name: Q08 Series Square Inductive Proximity Sensor (Q082.5T / Q082.5F)
Brand: DAIDISIKE
SKU: q08-series-square-inductive-proximity-sensor
Availability: InStock

Ultra-compact 8x8mm square inductive proximity sensor, 2.5mm sensing distance, side- or top-sensing.

Q08 Series Square Inductive Proximity Sensor (Q082.5T / Q082.5F) - product photo

🔍 Click to enlarge · 1/5

Technical Specifications

Sensing Type	Inductive
Body Style	Square Q08, T-type (side-sensing) / F-type (top-sensing)
Output Type	NPN / PNP, NO / NC
Sensing Distance	2.5 mm
Wiring	DC 3-wire (BN +, BK signal, BU -)
Body Cross-Section	8mm x 8mm
Body Length (Q082.5T)	23mm
Body Length (Q082.5F)	25mm
Housing Material	PC (polycarbonate)
Cable Outlet Diameter	Φ3mm

Overview

The Q08 (Q082.5T / Q082.5F) is a DC 3-wire inductive proximity sensor housed in a small rectangular PC (polycarbonate) block, 8mm x 8mm in cross-section. It detects metal targets without physical contact at a rated sensing distance of 2.5mm. It is built for machine designers and panel builders who need to fit a proximity sensor into tight mechanical spaces, such as inside small fixtures, narrow slots, or compact automation modules, where standard cylindrical M8/M12 sensors are too large or the wrong shape to mount.

The series is offered in two sensing-face orientations: Q082.5T senses from the side face of the body (23mm body length) and Q082.5F senses from the top face (25mm body length), while both share the same 8mm x 8mm cross-section. Each body type is further available in NPN or PNP output with normally-open (NO) or normally-closed (NC) logic, giving four wiring/logic combinations per body style, all wired as DC 3-wire with BN(+), BK(signal), and BU(-) leads via a cable outlet.

Features & Benefits

Ultra-compact 8x8mm square footprint

The 8x8mm square cross-section fits into narrow mounting slots and small fixtures where cylindrical M8/M12 barrel-style sensors cannot be installed.

Two sensing-face orientations

Q082.5T senses from the side face while Q082.5F senses from the top face, letting the designer pick the orientation that matches the target's approach direction without redesigning the mounting bracket.

Flexible output configuration: NPN/PNP, NO/NC

Each body type (T or F) is available in NPN or PNP output, and normally-open (NO) or normally-closed (NC) logic, giving four wiring/logic combinations per body style to match the customer's existing PLC or controller input type.

Standard DC 3-wire connection with color-coded leads

Wired with BN (brown, +), BK (black, signal), and BU (blue, -) leads via a cable outlet, following a widely-used industry wire color convention that simplifies field wiring and troubleshooting.

Polycarbonate (PC) housing

The sensor body is molded in PC engineering plastic per the factory selection table, giving a lightweight, non-metallic enclosure suited to general indoor automation environments.

Clear, standardized model naming

The naming pattern Q08 + 2.5 (sensing distance) + T/F (body/sensing orientation) + N/P (NPN/PNP) + 1/2 (NO/NC) lets buyers read the exact specification directly from the part number.

Applications

Small fixture and jig position confirmation — The 8x8mm compact body fits into fixtures too small for cylindrical sensors, and the 2.5mm sensing distance suits close-range metal target confirmation.

Narrow-slot or slide detection in compact machinery — The side-sensing (T-type) orientation allows detection through a narrow side opening where top access is blocked.

Compact automation module end-of-travel detection — The small footprint permits mounting directly on compact modules (e.g., small cylinders, slides) without space for a larger sensor body.

Top-facing metal target sensing in confined panel layouts — The top-sensing (F-type) orientation matches applications where the target approaches from above the sensor.

PLC-based automation retrofits requiring flexible I/O logic — NPN/PNP and NO/NC combinations allow direct matching to existing PLC input cards without adding interposing relays.

General indoor machine position/presence sensing — Non-contact inductive detection reduces mechanical wear versus limit switches in repetitive-cycle applications, consistent with standard inductive sensing operation.

Models & Ordering Information

Q082.5T (Side-Sensing)

Q082.5TN1Q082.5TP1Q082.5TN2Q082.5TP2

Body length 23mm; N=NPN, P=PNP; 1=NO, 2=NC.

Q082.5F (Top-Sensing)

Q082.5FN1Q082.5FP1Q082.5FN2Q082.5FP2

Body length 25mm; N=NPN, P=PNP; 1=NO, 2=NC.

How to Select

Choose Q082.5T if the target approaches from the side of the sensor body (side-sensing, 23mm body length); choose Q082.5F if the target approaches from the top (top-sensing, 25mm body length).
Both T and F body types in this series are rated at 2.5mm sensing distance; confirm the required detection gap in your application matches this rating.
Select NPN (N) if your controller/PLC input card is sinking, or PNP (P) if it is sourcing; this must match your existing control wiring.
Select "1" (normally open, NO) if the output should activate when a metal target is present, or "2" (normally closed, NC) if it should activate when no target is present.
Both T and F types share the same 8mm x 8mm body cross-section; confirm this fits the available mounting cavity, noting the T-type is 23mm long and the F-type is 25mm long.
Both types are supplied with a cable outlet (Φ3mm) wired DC 3-wire with BN(+)/BK(signal)/BU(-) leads; confirm this matches your junction/connector plan.

📘 Need the full method? How to Choose a Proximity Sensor · NPN vs PNP Sensor Outputs Explained

When NOT to specify the Q08 — and what to use instead

Needing side-sensing where an F (top-sensing) model was specified, or top-sensing where a T (side-sensing) model was specified

Why not: Q082.5T and Q082.5F have a fixed sensing-face orientation built into the body (side face vs. top face); the orientation is not field-adjustable.

Use instead: The other body variant in this same series - Q082.5T for side-sensing, Q082.5F for top-sensing - matched to the actual target approach direction.

Washdown, high-dust, or coolant-spray environments

Why not: No ingress protection (IP) rating is published in the current spec table for the Q08 series.

Use instead: Confirm the actual IP rating with the factory before specifying, or use a series in this catalog with a documented IP67 rating, such as the Q25/Q30/Q40 square series.

Outdoor installations or locations with wide temperature swings

Why not: No operating temperature range is published for the Q08 series in the current spec table.

Use instead: Confirm the operating temperature range with the factory, or use the M8/M12/M18/M30 DC 2-wire series, which is documented for -25C to +70C.

Detecting plastic, liquid, or other non-metallic targets

Why not: The Q08 series is an inductive sensor, which only detects metal targets.

Use instead: A capacitive proximity sensor such as the Q20 square capacitive switch or the RS series.

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.

Operating/supply voltage range
Ingress protection (IP) rating
Operating temperature range
Switching frequency / response time
Short-circuit and overload protection
Non-ferrous correction factor
MTBF (mean time between failures)
Certification status (CE/UL/RoHS, etc.)

Frequently Asked Questions

What is the sensing distance of the Q08 series inductive proximity sensor?

Both the Q082.5T and Q082.5F variants are rated at a 2.5mm sensing distance, as documented in the factory sensor catalog.

What is the difference between Q082.5T and Q082.5F?

They differ in sensing-face orientation and body length. Q082.5T is side-sensing (senses from the side face of the block) with a 23mm body length. Q082.5F is top-sensing (senses from the top face of the block) with a 25mm body length. Both share the same 8mm x 8mm body cross-section.

What output types are available for the Q08 series?

Each body type (T or F) is available in four output/logic combinations: NPN-NO, NPN-NC, PNP-NO, and PNP-NC, corresponding to model suffixes N1, N2, P1, P2.

What is the wiring configuration of the Q08 series?

It is a DC 3-wire sensor with a cable outlet. Standard wire colors are BN (brown) for the positive supply, BK (black) for the switched signal output, and BU (blue) for the negative supply/common, per the factory wiring diagram.

What material is the Q08 sensor housing made of?

According to the factory product selection table, the housing material is PC (polycarbonate).

What is the body size of the Q08 series?

The body cross-section is 8mm x 8mm for both variants. The Q082.5T body length is 23mm and the Q082.5F body length is 25mm, per the factory dimension drawing.

How do I read a Q08 model number, e.g., Q082.5TN1?

The naming pattern is Q08 + 2.5 (sensing distance in mm) + T/F (body/sensing orientation) + N/P (NPN/PNP output) + 1/2 (1 = normally open NO, 2 = normally closed NC). So Q082.5TN1 is a Q08 body, 2.5mm sensing distance, side-sensing T-type, NPN output, normally-open logic.

Is the Q08 series suitable for mounting in narrow slots or small fixtures?

Yes, its compact 8mm x 8mm square block housing is designed for space-constrained mounting positions where larger cylindrical (M8/M12) proximity sensors would not fit.

Does the Q08 series come with a connector or a fixed cable?

Per the factory drawing, it is supplied with a cable outlet (cable exit diameter Φ3mm shown in the dimension drawing); connector variants are not documented for this series in the available factory materials.