Advanced relay solutions built for performance and dependability
Standex Detect designs and manufactures custom relays to meet the most demanding switching and isolation requirements. Combining advanced reed and solid-state technologies, our engineers develop customized solutions for precise performance, long operating life, and consistent reliability.
Whether you need a reed relay for low-signal applications, a Photo-MOSFET relay for fast and silent solid-state switching, or an optocoupler for high-voltage isolation, Standex Detect delivers engineered designs optimized for your exact specifications and environmental conditions.
Our Engineering Capabilities
With decades of relay design experience and vertically integrated manufacturing, Standex Detect provides end-to-end capabilities from concept through production. Our engineering team works directly with OEMs to customize parameters such as coil voltage, contact configuration, insulation resistance, capacitance, and form factor to meet unique performance targets.
Our relays are engineered for high insulation resistance, low capacitance, and stable contact resistance. Our Photo-MOSFET relays provide fast, bounce-free switching and silent operation, while optocouplers deliver reliable galvanic isolation and signal integrity. Each relay type can be optimized for electrical performance, thermal stability, and long-term reliability under harsh operating conditions.
We utilize advanced testing capabilities including high-voltage breakdown, thermal cycling, shock and vibration testing, and life testing to ensure every relay meets stringent international quality standards.

Features and Benefits
Standex Detect reed relays use our own high performing reed switches to deliver stable, low-resistance switching with exceptional isolation and durability. Custom designs can include latching functionality, high-voltage or high-current handling, and magnetic or electrostatic shielding. Available in a variety of package sizes, our reed relays are ideal for applications requiring precision, stability, and long operating life.
- High Reliability and Long Life: Engineered for billions of switching operations with consistent performance.
- Low Contact Resistance: Delivers clean, stable switching for signal and power applications.
- High Insulation Resistance: Provides reliable isolation up to 10^14 ohms for sensitive circuits.
- Compact and Customizable Designs: Tailored packages and pin-outs to fit specific board layouts.
- Low Capacitance and Thermal Offset: Ideal for precision measurement and low-leakage circuits.
- Custom Coil Voltages and Configurations: Supports both AC and DC operation for global standards.
- Shielding and Screening Options: Magnetic and electrostatic shielding available to reduce interference.
- Solid-State and Reed Options: Hybrid capability allows optimized selection based on load type and performance goals.
Common Applications
Standex Detect custom relays are used in applications requiring reliable switching, isolation, and control across a wide range of voltages and environments. Typical markets include:
- Test and Measurement – Semiconductors, pre-charge circuits, and cable testers
- Industrial and Automation Equipment – Process control, test systems, and instrumentation
- Medical Devices – Imaging, diagnostic, and patient monitoring equipment
- Automotive Electronics – Battery management, sensor isolation, and safety systems
- Renewable Energy Systems – Inverter control and high-voltage signal isolation

Types of Custom Relays
Reed Relays
Standex Detect reed relays use our own high performing reed switches to deliver stable, low-resistance switching with exceptional isolation and durability. Custom designs can include latching functionality, high-voltage or high-current handling, and magnetic or electrostatic shielding. Available in a variety of package sizes, our reed relays are ideal for applications requiring precision, stability, and long operating life.
Photo-MOSFET Relays
Photo-MOSFET relays combine optical isolation with solid-state performance for fast, silent, and bounce-free switching. Custom solutions can be configured for voltage ratings up to 1500 V and current handling up to 4.5 A. Their compact, durable design supports AC and DC loads and maintains performance under vibration, shock, and contamination.
Optocouplers
Standex Detect optocouplers provide galvanic isolation and solid-state switching for both analog and digital signals. Custom options include high-voltage isolation up to 20 kV, low capacitance, and ATEX or IECEx-certified models for hazardous environments. They ensure dependable signal transmission and electrical separation in industrial, medical, and power control systems.