Product Description
Standex Electronics HM Series Reed Relay, Top Cables; 1A SPST-NO, 12 VDC; 3 Amp, < 7500 VDC SWT Voltage
Reed Relay • Mounting: Top Cables • Contact Form: 1A SPST-NO • Coil Voltage: 12 VDC • Switching Voltage: < 7500 VDC • Switching Current (max.): 3 Amp • Option: Standard • Special Feature: High Voltage Isolation
Product Information
| Manufacturer | Standex Electronics |
| Product Category | Relay |
| Product Sub Category | Reed Relay |
| Series | HM Series |
| Catalog Part Number | HM12-1A83-20-6 |
Specifications
| Product Attribute | Attribute Value |
|---|---|
| Mounting | Top Cables |
| Contact Form | 1A SPST-NO |
| Coil Voltage | 12 VDC |
| Switching Voltage | < 7500 VDC |
| Switching Current (max.) | 3 Amp |
| Option | Standard |
| Special Feature | High Voltage Isolation |
| Coil Resistance (typ.) | 250 |
| Pull-In Voltage (VDC) | 9 |
| Drop-Out Voltage (VDC) | 1 |
| Nominal Coil Power (typ.) mw | 576 |
| Rated Power (max.) | 50 W |
| Carry Current (max.) | 5.0 A |
| Contact Resistance (max.) | 150 mOhm |
| Breakdown Voltage (min.) | 10 kVDC |
| Operating Time (max.) | 3.0 ms |
| Release Time (max.) | 1.5 ms |
| Insulation Resistance (typ.) | 10<sup>12</sup> ohm |
| Capacitance (typ.) | 1 pF |
| Shock Resistance (max.) | 50 g |
| Vibration Resistance (max.) | 20 g |
| Operating Temperature (max.) | -20 to 70 °C |
| Storage Temperature (max.) | -35 to 95 °C |
| Soldering Temperature (max.) | 260 °C |
Series Features
HM Series Reed Relay
Series DescriptionThe HM Series is a high-voltage reed relay engineered for precision switching in extreme isolation environments. Capable of switching up to 10,000 VDC and withstanding breakdown voltages up to 15,000 VDC, the HM Series is ideal for applications requiring robust dielectric strength and minimal leakage, such as medical equipment, cable testing, and automated test systems.
Encapsulated in epoxy for durability and available in multiple PCB pin configurations, the HM Series offers flexible mounting options including through-hole and axial lead formats. It supports SPST-NO (Form A), SPST-NC (Form B), and latching (Form E) contact forms, with coil voltages of 5 VDC, 12 VDC, and 24 VDC. Rated for up to 50 W and 3 A, the HM Series also features leakage distances greater than 32 mm, making it a reliable replacement for mercury wetted relays in high-voltage applications.
- High-voltage switching up to 10,000 VDC; breakdown voltage up to 15,000 VDC
- SPST-NO, SPST-NC, and latching contact configurations
- Rated for 50 W and 3 A for high-power applications
- Coil voltage options: 5 VDC, 12 VDC, 24 VDC
- Epoxy encapsulated with multiple PCB pin layouts
- Optional high-voltage wire leads for direct wiring
- Leakage distance >32 mm for enhanced isolation
- Through-hole and axial mounting options
- Ideal replacement for mercury wetted relays
Medical Equipment: Defibrillators, electrosurgical generators, and high-voltage isolation
Cable Testing Systems: Reliable switching for insulation and breakdown testing
Test & Measurement (ATE): High-voltage switching in automated test environments
Industrial Controls: High-voltage relay control in power and energy systems
High-Voltage Research: Precision switching in lab and experimental setups