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Littelfuse 590403U02A Proximity Sensor

The 59040 Press-Fit Reed Sensor is a compact, cylindrical device measuring 31.0 mm in length, designed for easy press-fit installation into a 9.5 mm diameter hole. It features selectable normally open, normally closed, or change-over contacts capable of switching up to 200 VDC at 10 W. The sensor is suitable for industrial, automation, and IoT proximity sensing applications, functioning effectively in harsh environments, including wet conditions. Its hermetically sealed, IP67-rated housing and extensive sensitivity options make it ideal for security, factory automation, and appliance control systems.

Authorized Distributors
Source:Newark
Part No:59040-3-U-02-A
Stock:183
Inv Date:05-28-2026
Price: Unit price: $7.43
Buy/RFQ:
Source:DigiKey
Part No:59040-3-U-02-A
Stock:416
Inv Date:05-28-2026
Price: Unit price: $7.33
Buy/RFQ:
Part No:59040-3-U-02-A
Stock:0
Inv Date:05-29-2026
Price: Unit price: $4.34
Buy/RFQ:
Part No:59040-3-U-02-A
Stock:0
Inv Date:05-28-2026
Price: Unit price: $7.31
Buy/RFQ:
Part No:59040-3-U-02-A
Stock:490
Inv Date:05-29-2026
Price: N/A
Buy/RFQ:

Littelfuse 590403U02A Proximity Sensor Specifications:

  • Sensor Length: 31.0 mm
  • Housing Material: White, hermetically sealed, IP67 rated
  • Housing Diameter: 9.5 mm
  • Contact Ratings: Up to 200 VDC, 10 W
  • Contact Types: Normally Open, Normally Closed, Change Over
  • Switching Voltage: Max 200 Vde
  • Switching Current: Max 0.35 Aac
  • Operate Time: Max 5 ms
  • Release Time: Max 5 ms
  • Operating Temperature Range: -40°C to +105°C
  • Shock Resistance: 100 G sine
  • Vibration Resistance: 30 G, 50-2000 Hz
  • Cable: 24 AWG PVC, UL 1430/1569, 300 mm (11.81 inch) or 1000 mm (39.37 inch)
  • Certifications: UL Recognized, CSA C22.2, RoHS, REACH

Buy the Littelfuse 59040 U– Reliable Proximity Sensor for Industrial Applications

Purchase the Littelfuse 59040 press-fit reed proximity sensor online today to ensure reliable non-contact sensing in your industrial, automation, or IoT systems. Its compact, cylindrical design allows easy installation into a 9.5 mm diameter hole, while its hermetically sealed housing guarantees IP67 protection against environmental contaminants. This sensor offers flexible contact configurations, switching up to 200 VDC at 10 W, making it suitable for security, factory automation, and process equipment. Trust Littelfuse for high-quality, durable sensing solutions delivered directly to your door.

Buy Littelfuse 59040 now and experience unmatched reliability and performance in harsh industrial environments.

Frequently Asked Questions

Where can I buy Littelfuse 590403U02A?

You can click on the BUY or RFQ button to purchase 590403U02A from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part 590403U02A?

You can download the 590403U02A datasheet or visit the Littelfuse website for support.

Who is the manufacturer of 590403U02A?

Littelfuse

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