Ultra-miniature NC SMD Reed Sensor R5B

R5B-S ultra-miniature NC Reed Sensor Drawing
R5B-S Reed Sensor Pad L:ayout
R5B ultra-miniature NC Reed Sensor Carrier Tape

Features

5W Contact Rating. Normally Closed contact. Polarity Sensitive. Two sensitivity bands. Packed in Tapes for automatic assembly.

Benefits

Does not require power for operation. Sputtered Ruthenium Contact. RoHS Compliant. Not ESD Sensitive.

📝Description

These ultra-miniature NC SMD reed sensors are engineered with an integrated biasing magnet for making them operate as normally closed devices. Molded with pre-flattened leads, they ensure minimal shock transfer during SMD assembly, contributing to their durability and stability in operation. Depending on the magnet strength and AT band configuration, these sensors offer versatile activating distances to suit different application needs.

Prior to packaging, each of these ultra-miniature NC sensors undergoes thorough 100% testing to verify Operate AT, Release AT, Contact Resistance, Re-closure and Variable Contact Resistance parameters. This rigorous testing process ensures consistent and dependable performance in various environmental conditions.

The design of these ultra-miniature NC sensors is such that it needs to be actuated with a magnet of opposite polarity for the sensor to change state from normally closed to normally open. By selecting the appropriate AT band, magnet strength, and operating axis, users can control the number of operate and release cycles, typically limiting them to one cycle per activation. Bringing the magnet too close to the sensor, beyond actuation range may cause re-closure.

All dimensions provided are in millimeters (mm), ensuring compatibility and ease of integration into compact electronic designs. These features make the ultra miniature NC SMD reed sensors ideal for applications where space is limited and reliable switching performance is critical, in power saving applications such as in portable electronics, medical devices, and automotive systems.

Their compact size, robust construction, and precise operation make them a preferred choice among engineers seeking high-performance reed switch solutions for demanding applications.

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 R5B NC Reed Sensors

Operate and release distances for the R5B ultra-miniature Normally closed reed sensor in the two standard AT bands when actuated (as shown Continue reading ->

Sep 3, 2024

⚡️Electrical

Contact Form		B
Contact Rating (max)	W/VA	5.0
Switching Current (max)	A	0.35
Carry Current (max)	A	0.50
DC Switching Voltage (max)	V_DC	100
Breakdown Voltage (min)	V_DC	150
Contact Resistance (max)	mΩ	200
Insulation Resistance (min)	Ω	10⁹
Capacitance (typ)	pF	0.2

📊Miscellaneous

Operate Time (max)	ms	0.35
Bounce Time (max)	ms	0.30
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

R5B-S-(Release Band Code)

Release Band Code
1	AT	7-12
2	AT	12-17

Examples: R5B-S-1 denotes R5B Normally Closed Reed Sensor with Gull-wing SMD formed leads, in 7-12 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 R2 Reed Sensor is known to perform well.