Product Description
Standex Electronics UMS Series Reed Relay, Through Hole (THT); 1A SPST-NO, 5 VDC; 0.5 Amp, < 200 VDC SWT Voltage
Reed Relay • Mounting: Through Hole (THT) • Contact Form: 1A SPST-NO • Coil Voltage: 5 VDC • Switching Voltage: < 200 VDC • Switching Current (max.): 0.5 Amp • Option: Magnetic Shield • Special Feature: Miniature • Washability: Fully Sealed
Product Information
| Manufacturer | Standex Electronics |
| Product Category | Relay |
| Product Sub Category | Reed Relay |
| Series | UMS Series |
| Catalog Part Number | UMS05-1A80-75L |
Specifications
| Product Attribute | Attribute Value |
|---|---|
| Mounting | Through Hole (THT) |
| Contact Form | 1A SPST-NO |
| Coil Voltage | 5 VDC |
| Switching Voltage | < 200 VDC |
| Switching Current (max.) | 0.5 Amp |
| Option | Magnetic Shield |
| Special Feature | Miniature |
| Washability | Fully Sealed |
| Coil Resistance (typ.) | 400 |
| Pull-In Voltage (VDC) | 3.75 |
| Drop-Out Voltage (VDC) | 0.5 |
| Nominal Coil Power (typ.) mw | 62.5 |
| Contact Material | Rhodium |
| Rated Power (max.) | 10 W |
| Carry Current (max.) | 1.0 A |
| Contact Resistance (max.) | 200 mOhm |
| Breakdown Voltage (min.) | 210 VDC |
| Operating Time (max.) | 0.2 ms |
| Release Time (max.) | 0.1 ms |
| Insulation Resistance (typ.) | 10<sup>11</sup> ohm |
| Capacitance (typ.) | 0.2 pF |
| Dielectric Strength Coil/Contact (min.) | 1.5 kVDC |
| Insulation Resistance Coil/Contact (min./typ.) | 10<sup>12</sup>/10<sup>13</sup> ohm |
| Capacitance Coil/Contact (typ.) | 0.9 pF |
| Shock Resistance (max.) | 50 g |
| Vibration Resistance (max.) | 20 g |
Series Features
UMS Series Reed Relay
Series DescriptionThe UMS Series is an ultraminiature, instrumentation-grade reed relay designed for high-density PCB layouts and precision switching in compact electronic systems. Measuring nearly 50% smaller than the standard MS Series, the UMS Series is ideal for tightly stacked matrices in test and measurement, telecommunications, and security applications.
Encased in a micro single-in-line (SIL) package, the UMS Series features SPST-NO (Form 1A) contact configuration and supports coil voltages of 5 VDC with coil resistance ranging from 400 to 500 Ω. Rated for up to 10 W, 170 VDC, and 0.5 A, it includes an internal magnetic shield and optional diode protection for enhanced signal integrity and reliability. UL certification ensures compliance with global safety standards.
- Ultraminiature SIL package—50% smaller than MS Series
- SPST-NO (Form 1A) contact configuration
- Rated for 10 W, 170 VDC, and 0.5 A switching capacity
- Coil voltage: 5 VDC
- Coil resistance: 400–500 Ω
- Internal magnetic shielding for signal isolation
- Optional diode protection for coil suppression
- UL Certificate of Compliance for safety assurance
- Through-hole (THT) mounting for secure PCB integration
- Optimized for high-density relay matrices
Test & Measurement (ATE): Compact relay arrays for precision switching
Telecommunications: Signal routing in miniaturized network modules
Security Systems: Reliable switching in alarm and access control devices
Industrial Electronics: Space-saving relay integration in embedded systems
Medical Devices: Compact relay control in diagnostic equipment