📝 Description
This highly sensitive Ultra Miniature reed switch is meticulously engineered for demanding low power, high-speed switching applications, boasting an Operate Time of less than 0.3 milliseconds. Specifically, the 7.0 mm glass variant excels in minimizing Contact Resistance, allowing it to effortlessly handle higher loads up to 10W at 100V, ensuring reliable performance in diverse operating conditions.
The design incorporates flattened leads, facilitating precise orientation during batch assembly processes such as soldering or welding, thereby optimizing sensitivity within groups of switches. For applications requiring compactness, the cropped version of the UM-0018-H ultra miniature reed switch is ideal, fitting seamlessly into smaller plastic housings and offering versatility for direct soldering onto cables.
Furthermore, the SMD version of the switch supports reflow soldering on PCBs, enhancing manufacturing efficiency and reliability in surface-mount technology applications. For traditional through hole PCB setups, both vertical and horizontal mount versions are available, providing flexibility in installation based on specific project requirements.
These features collectively make this ultra-miniature reed switch a preferred choice across various industries, including telecommunications, automotive electronics, and medical devices. Its combination of high sensitivity, rapid switching capabilities, and robust power handling ensures consistent performance in critical applications. Whether integrated into compact consumer electronics or industrial control systems, these reed switches deliver dependable operation and durability, meeting the stringent demands of modern technology.
⚡️ Electrical
| Parameters | Unit | Values |
| Contact Form | A | |
| Contact Rating (max) | W/VA | 10.0 |
| Switching Current (max) | A | 0.5 |
| Carry Current (max) | A | 0.5 |
| DC Switching Voltage (max) | VDC | 100 |
| AC Switching Voltage (max) | VAC | 70 |
| Breakdown Voltage (min) | VDC | 150 |
| Contact Resistance (max) | mΩ | 200 |
| 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 | 0.1 |
| 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
UM-0018-H-(Operate Band)-(Formation Code)
| Operate Band | AT | 7-20 |
| Corresponding Release Band | AT | 3-18 |
| Formation Code | Lead Type |
| Full Length Leads | |
| C | Cropped |
| S | SMD |
| H | Horizontal Mount |
| V | Vertical Mount |
Examples: UM-0018-H-7-12 denotes 7-12 Operate Band (AT) with Full Length leads. UM-0018-H-15-18-H denotes 15-18 Operate Band (AT) with Goal-post SMD formed leads for horizontal mounting.
Other Special Configurations: Lower Static Contact Resistance, Dynamic Contact Resistance Limit, Higher Insulation Resistance, Special Release Limits, Gold plated leads.
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🛠️ Usage Notes
Here are some of the recommended usage notes to ensure maximum durability of this 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 the UM-0018-H Miniature Reed Switch is known to perform well.
