NC Reed Sensor R2B, Standard Size

Drawing of R2B-S NC Reed Sensor
R2-S Gull-wing SMD Formed Reed Sensor Pad Layout
Drawing of R2B-F NC Reed Sensor
R2E-F Low Profile SMD Formed Reed Sensor Pad Layout
Drawing of R2B Carrier Tape

Features

10W Contact Rating. Normally Closed contact. Polarity Sensitive. Two sensitivity bands. Two Lead formations.

Benefits

Does not require power for operation. Sputtered Ruthenium Contact. Not ESD Sensitive. Packed in Tapes for automatic assembly.

📝Description

This standard size NC reed sensor, is produced with an integrated biasing magnet. Designed with pre-flattened leads and molded to withstand SMD formation without transferring shock, it offers ensure robust performance in diverse applications. Available in various activating distances determined by the magnet and AT band utilised, this NC reed sensor undergoes rigorous 100% testing for AT release, Static Contact Resistance, and Variable Contact Resistance prior to packaging, ensuring consistent quality.

The principle behind their operation lies in the interaction between opposing poles of the magnet and sensor, which causes the normally closed sensor contact to release. Selecting the appropriate AT band, magnet strength, and operating axis is crucial, as it influences the sensor’s ability to limit the number of operates and releases to a single cycle, enhancing longevity and performance predictability. Another key factor to note is that biased sensors exhibit a phenomenon known as re-closure if the magnet is brought too near the sensor.

These sensors adhere to precise dimensions measured in millimeters (mm), emphasizing compatibility and ease of integration into various electronic assemblies. Their advanced design and manufacturing standards help aid high precision sensing. As technology evolves, these SMD reed sensors continue to set benchmarks in reliability and performance, supporting innovations across a spectrum of industrial and consumer electronic products.

Magnets for Actuating Reed Switches and Reed Sensors

Drawing of Cylindrical MagnetsDrawing of Rectangular Bar Magnets starFeaturesNdFeB High Energy. Nickel coated. Energized Continue reading ->

Sep 3, 2024

Actuation Distances for R2B NC Reed Sensors

Operate and release distances for the R2B Normally closed reed sensor in the two standard AT bands when actuated with NdFeB standard Continue reading ->

Sep 3, 2024

⚡️Electrical

Contact Form		B
Contact Rating (max)	W/VA	10.0
Switching Current (max)	A	0.5
Carry Current (max)	A	1.50
DC Switching Voltage (max)	V_DC	180
Breakdown Voltage (min)	V_DC	200
Contact Resistance (max)	mΩ	150
Insulation Resistance (min)	Ω	10⁹
Capacitance (typ)	pF	0.2

📊Miscellaneous

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

R2B-(Formation Code)-(Release Band Code)

Formation Code	Lead Type
S	Gull-wing SMD
F	Low Profile SMD

Release Band Code
1	AT	10-15
2	AT	15-20

Examples: R2B-S-2 denotes R2B Reed Sensor with Gull-wing SMD formed leads, in 15-20 Release Band (AT). R2B-F-1 denotes R2B Reed Sensor with Low profile SMD formed leads, in 10-15 Release Band (AT).

Other Special Configurations: Lower Static Contact Resistance, Dynamic Contact Resistance Limit, Higher Insulation Resistance, Special Release Limits, Gold plated leads.

🛠️Usage Notes

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

Ampere Turn Selection for your Application

Selecting the appropriate Ampere Turn (AT) or magnetic sensitivity for a Reed Switch, Reed Sensor, or Magnet Sensor is crucial in any Continue reading ->

Jul 24, 2024

Handling of Reed Switches

Handling of Reed Switches Reed Switches, Reed Sensors, and Magnet Sensors are delicate devices prone to developing micro cracks in Continue reading ->

Jun 17, 2024

Reflow Soldering of Reed Switches

Reflow Soldering is a sophisticated process used in electronics manufacturing to solder components onto printed circuit boards (PCBs). It Continue reading ->

Jun 17, 2024

Soldering of Reed Switches

Soldering Reed Switches and Reed Sensors requires meticulous handling to safeguard these delicate components against inadvertent damage. Continue reading ->

Jun 17, 2024

Ferro-magnetic Parts

Reed Switches utilize a nickel-iron alloy, sputter coated with additional Ruthenium to render it ferromagnetic while maintaining low Continue reading ->

Jun 17, 2024

Protection Circuits for Reed Switches

It is assumed that the ideal reed switch load is a Resistive Load, but it is almost impossible to reduce any load to purely resistive. Continue reading ->

Jun 17, 2024

🧰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 R2B Normally Closed Reed Sensor is known to perform well.