




📝 Description
This Micro Miniature reed switch is engineered for applications requiring moderate power and low load capacities. Its fast operate time makes it well-suited for high-speed switching scenarios, ensuring efficient performance across various industrial and consumer electronics applications. Compared to the UM-0018 Ultra-miniature series, this reed switch offers a cost-effective solution without compromising on reliability or functionality.
The leads of this micro miniature switch are flattened, facilitating precise orientation of the internal blades during assembly processes such as soldering or welding. This feature optimizes the orientation for maximum sensitivity and consistency in operation. Additionally, the availability of three different Release AT types caters to a wide range of specific application requirements, enhancing versatility and customization options.
For compact designs, the cropped version of the Micro Miniature Reed Switch is suitable, fitting seamlessly into smaller plastic housings and offering flexibility for direct soldering onto cables. In PCB assembly, the SMD version supports reflow soldering processes, ensuring secure and efficient integration onto surface-mount technology boards. Furthermore, vertical and horizontal mount versions accommodate through hole PCB configurations, providing ease of installation across different mounting orientations.
These features collectively position the Micro Miniature reed switch as a reliable choice across industries such as telecommunications, automotive electronics, and medical devices. Its combination of cost-effectiveness, fast switching capability, and versatile mounting options makes it ideal for applications where space constraints and performance requirements are critical considerations. Whether used in consumer electronics or industrial automation, this reed switch delivers consistent performance and durability, meeting the evolving demands of modern technological applications.
⚡️ Electrical
| Parameters | Unit | Values |
| Contact Form | A | |
| Contact Rating (max) | W/VA | 10.0 |
| Switching Current (max) | A | 0.5 |
| Carry Current (max) | A | 0.75 |
| DC Switching Voltage (max) | VDC | 100 |
| AC Switching Voltage (max) | VAC | 70 |
| Breakdown Voltage (min) | VDC | 200 |
| Contact Resistance (max) | mΩ | 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 | 0.3 |
| Release Time (max) | ms | 0.15 |
| Resonance Frequency (typ) | Hz | >2000 |
| Operating Frequency (max) | Hz | 500 |
| Operating Temperature | °C | -40 to +120 |
| Shock Resistance (½Sin wave for 11ms) | G | 30 |
| Vibration Resistance (10-2000Hz) | G | 20 |
| Test Coil Number | 717 102 003 |
⚙️ Ordering Code
R3-(Formation Code)-(Operate Band Code)
| Release AT Code | L | M | H | |
| Operate Band | AT | 10-40 | 10-40 | 10-40 |
| Corresponding Release Band | AT | 4-20 | 6-25 | 7.5-30 |
| Formation Code | Lead Type |
| Full Length Leads | |
| C | Cropped |
| S | SMD |
| H | Horizontal Mount |
| V | Vertical Mount |
Examples: MM-1018-L-10-14 denotes Low Release in 10-14 Operate Band (AT) with Full Length leads. MM-1018-H-12-18-S denotes High Release in 12-18 Operate Band (AT) with SMD formed leads.
Other Special Configurations: Lower Static Contact Resistance, Dynamic Contact Resistance Limit, Higher Insulation Resistance, Special Release Limits, Gold plated leads.
[schema type="product" url="https://www.reed-sensor.com/reed-switches/ultra-miniature-reed-switch/" name="UM-0018-M 5W Ultra Miniature Reed Switches" description="5.0 mm x ø1.80 mm, Flattened leads, complete data sheet and technical specifications. Customers can safely use UM-1018-M in place of RI-80, RD-75AA or HSR-0035R" brand="RRE" manfu="Reed Relays and Electronics" model="UM-0018-M" single_rating="4.2" agg_rating="16" condition="New" ]
🛠️ Usage Notes
Here are some of the recommended usage notes to ensure maximum durability of this MM-1018 Reed Switch. The complete usage notes are available here.
🧰 Applications
Although we can never restrict the use of a reed switch to a particular field, the following is a list of some of the applications that this MM-1018 Micro Miniature Reed Switch is known to perform well.
Read about how reed sensors that are light and dur…
Read about how printing presses use Magnet Sensors…
Find out how reed switch based float switches can …
