Introducing Standex Detect, a New Name in Precision Electronics

Standex Detect is part of the newly rebranded Standex Electronics family. Our focus remains on precision reed switches, sensors, and relays that deliver the right design, at the right time, at the optimal cost. Read our press release to learn more about how this change strengthens our global collaboration and innovation.

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BH Series Reed Relay

The BH Series is a high-power, high-insulation reed relay engineered for precision switching in demanding test and measurement environments. Capable of switching up to 1 kVDC with a breakdown voltage of 3 kVDC and above, the BH Series offers ultra-low leakage current in the picoampere range and insulation resistance up to 10 TΩ, making it ideal for high-voltage and high-accuracy applications.

Designed with an integrated electrostatic shield and axial switch leads, the BH Series ensures minimal interference and high-density assembly. Available in SPST-NO (Form A) configurations with up to 4 switches per relay, it supports coil voltages of 5 VDC, 12 VDC, and 24 VDC, and rated power up to 100 W. Its robust dry-switch design and magnetic shielding make it a reliable alternative to mercury wetted relays in automated test equipment and semiconductor testing.

Standards and Certifications

REACH Compliant RoHS Compliant IEC Qualified
  • High switching voltage capability up to 1 kVDC
  • Breakdown voltage of 3 kVDC and higher across open contacts
  • High insulation resistance up to 10 TΩ for ultra-low leakage current
  • Multi-channel dry-switch design with up to 4 Form A switches
  • Integrated electrostatic shield for enhanced isolation
  • Magnetic shielding for high-density PCB assembly
  • Low contact resistance (ON-resistance) for reliable signal integrity
  • Through-hole mounting for secure and stable integration
  • RoHS and REACH compliant for global environmental standards
Breakdown Voltage3kVDC and above
Coil Voltage (VDC)5, 12, 24
Coil Resistance (Ω)100-1600
Contact Form1A-4A (SPST) Normally Open (N.O.)
Rated Power Max.100W/1000VDC/1A
  • Automated Test Equipment (ATE): High-voltage switching and signal routing
  • Semiconductor Testing: Precision isolation and low leakage switching
  • High-Accuracy Testers: Reliable performance in sensitive measurement systems
  • General Purpose Industrial: High-voltage relay control in industrial environments
  • Test & Measurement Systems: Signal integrity and isolation in lab instrumentation
  • Mercury Relay Replacement: Safe and reliable alternative for legacy systems

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