Sensor Connectors: Voltage Rating 50-250V AC/DC

Q: What are the most common types of sensor connectors?

M12 and M8 circular connectors are most common, with 3-8 pins for different sensor types. M12 connectors dominate industrial automation with coding options (A-coded for sensors, B-coded for fieldbus).

Q: How do I choose between IP67 and IP68 rated connectors?

IP67 connectors withstand temporary immersion (1m/30min) while IP68 handles continuous immersion (specified depth/time). Choose IP68 for washdown areas or submerged applications.

Q: Can sensor connectors be used in explosive atmospheres?

Yes, with appropriate certifications (ATEX, IECEx) and increased safety designs that prevent sparking through proper sealing and contact protection.

Component Specifications

Definition

Sensor connectors are specialized electromechanical interfaces designed to establish secure, low-resistance electrical connections between various types of industrial sensors (temperature, pressure, proximity, etc.) and the sensor interface board or control system. These connectors ensure accurate signal transmission while protecting against environmental factors like moisture, vibration, and electromagnetic interference in industrial settings.

Working Principle

Sensor connectors operate by establishing physical and electrical contact between sensor leads and interface board terminals through mating pin/socket arrangements. They maintain signal integrity through precision contact geometry, proper insulation, and shielding mechanisms that prevent signal degradation, cross-talk, or interruption in harsh industrial environments.

Materials

Contacts: Phosphor bronze or beryllium copper with gold/nickel plating; Housing: Thermoplastic (PBT, PA66, PPS) with UL94 V-0 flame rating; Seals: Silicone rubber (IP67/IP68 rated); Shielding: Nickel-plated steel or aluminum.

Technical Parameters

Parameter	Typical range	Notes & selection driver
IP Rating	IP67/IP68
Wire Gauge	AWG 24-16
Mating Cycles	≥500 cycles
Current Rating	1-10A
Voltage Rating	50-250V AC/DC
Contact Resistance	<20mΩ
Insulation Resistance	>1000MΩ
Operating Temperature	-40°C to +125°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 4400, DIN 43650, IEC 61076-2, UL 1977

Parent Products

This component is used in the following industrial products

Sensor Interface Board

A printed circuit board that provides electrical interface and signal conditioning between sensors and control systems.

View Product Details

Engineering Analysis

Risks & Mitigation

Intermittent connections from vibration
Corrosion in humid environments
EMI/RFI interference
Pin misalignment during mating
Insulation breakdown from chemical exposure

FMEA Triads

Trigger: Vibration loosening threaded couplings
Failure: Intermittent signal loss
Mitigation: Use vibration-resistant designs with locking mechanisms

Trigger: Moisture ingress through seal degradation
Failure: Short circuits or corrosion
Mitigation: Regular seal inspection and replacement schedules

Trigger: EMI from nearby power cables
Failure: Signal noise/distortion
Mitigation: Proper shielding and cable routing separation

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.1mm for mating dimensions, contact resistance variation <10% over lifetime

Test Method

IEC 60512 for electrical/mechanical tests, ISO 16750 for environmental validation

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Sensor Connectors

2 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Shenzhen Shenghongyue Technology Co., Ltd.

Shenzhen, Guangdong, CN

Also makes: Signal Connectors, Industrial Camera, Connector / Cable Assembly and 1 more

Listed on the company's own website · profile compiled by CNFX from public sources

Listed there as: “Sensor Connectors”
View source page ↗ pauslongconnector.com · checked 2026-09-01

View profile Send enquiry

Shenzhen Signal Electronics Co.,LTD.

Guangdong, CN

Also makes: Agricultural Machinery, Construction Equipment, Signal Connectors and 4 more

Listed on the company's own website · profile compiled by CNFX from public sources

Listed there as: “Vibration Sensor Connectors”
View source page ↗ signal-connector.com · checked 2026-09-01

View profile Send enquiry

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What are the most common types of sensor connectors?