Latching Reed Sensor, R2E

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Features

10W Contact Rating.

Bi-stable, Lacthing contact.

Polarity Sensitive.

Packed in Tapes for automatic assembly.

Two Lead Formations.

Benefits

Does not require power for operation.

RoHS Compliant.

Not ESD Sensitive.

📝 Description

These latching reed sensors feature an integrated biasing magnet, that is carefully calibrated to provide its bi-stable function. The whole enclosure is molded and the alloy construction includes pre-flattened leads that prevent shock transfer during SMD formation, ensuring reliability throughout assembly. Depending on the specific magnet employed, these sensors offer customizable latching and unlatching distances.

Each latching reed sensor undergoes rigorous testing, including 100% checks for Operate AT, Release AT, Static Contact Resistance, and Variable Contact Resistance prior to packaging. The functionality of the normally closed sensor contact is influenced by the alignment of magnetic poles: alternate opposing poles cause the contact to release and operate.

These sensors are ideal for applications requiring dependable and precise switching under varying conditions. Whether in industrial automation, automotive systems, or consumer electronics, their robust design and thorough quality assurance make them a reliable choice for critical sensing tasks.

These bi-stable latching reed sensors with integrated biasing magnets offer unparalleled reliability and performance. Their design considerations and meticulous testing ensure they meet the demands of modern electronic and mechanical systems, providing consistent operation and longevity in diverse environments.

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⚡️ Electrical

Parameters Unit Values
Contact Form B
Contact Rating (max) W/VA 10.0
Switching Current (max) A 0.5
Carry Current (max) A 1.0
DC Switching Voltage (max) VDC 100
Breakdown Voltage (min) VDC 150
Contact Resistance (max) 150
Insulation Resistance (min) Ω 109
Capacitance (typ) pF 0.2

📊 Miscellaneous

Parameters Unit Values
Operate Time (max) ms 0.35
Bounce Time (max) ms 0.15
Release Time (max) ms 0.15
Resonance Frequency (typ) Hz >2000
Operating Frequency (max) Hz 500
Operating Temperature Range °C -40 to +140
Shock Resistance (½Sin wave for 11ms) G 30
Vibration Resistance (10-2000 Hz) G 20`

⚙️ Ordering Code

R2E-(Formation Code)-(Operate AT Code)

Formation Code Lead Type
S Gull-wing SMD
F Low Profile SMD
Latch/Unlatch Band Code    
1 AT 10-15
2 AT 15-20

Examples: R2E-S-2 denotes R2E Reed Sensor with Gull-wing SMD formed leads, in 15-20 Latch/Unlatch Band (AT). R2E-F-1 denotes R2E Reed Sensor with Low profile SMD formed leads, in 10-15 Latch/Unlatch Band (AT).

Other Special Configurations: Lower Static Contact Resistance, Gold plated leads.

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🛠️ Usage Notes

Here are some of the recommended usage notes to ensure maximum durability of this product. The complete usage notes are available here.

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🧰 Applications

Although we can never restrict the use of a reed sensor to a particular field, the following is a list of some of the applications that the R2E Normally Closed Reed Sensor is known to perform well.

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Get in touch with Reed Sensor Dynamics™

Reed Sensor Dynamics™, 2026