DB(UL) Normally Closed High Voltage Relays

Cynergy3 / Sensata DB(UL) Normally Closed High Voltage Relays are designed for high-reliability applications. The UL-approved relays feature very high isolation voltages (10kV, 7.5kV, 5kV) and high vacuum reed switches with either rhodium or tungsten contacts. The rhodium contact relays have low contact resistance, and the tungsten contact relays can switch at higher voltages. Cynergy3 / Sensata DB Normally Closed High Voltage Relays applications include cardiac defibrillators, test equipment, and high voltage power supplies.

Results: 31
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Coil Voltage Relay Contact Form Maximum Switched Current Switching Voltage Maximum Switched Power Coil Suppression Diode Coil Resistance Termination Style Series
Cynergy3 Reed Relays HV RELAYS 67In Stock
Min.: 1
Mult.: 1

24 VDC 1 Form B (SPST-NC) 3 A 1 kVAC, 1 kVDC 50 W Diode 925 Ohms Through Hole D
Cynergy3 Reed Relays HV RELAYS 31In Stock
40Expected 2026/08/17
Min.: 1
Mult.: 1

5 VDC 1 Form B (SPST-NC) 2 A 7 kVAC, 7 kVDC 50 W Diode 38 Ohms Through Hole D
Cynergy3 Reed Relays HV RELAYS 109In Stock
220Expected 2026/09/22
Min.: 1
Mult.: 1

24 VDC 1 Form B (SPST-NC) 2 A 7 kVAC, 7 kVDC 50 W Diode 925 Ohms Through Hole D
Cynergy3 Reed Relays 10KV 24V SPNC Tungsten - Flying Lead HV contact connections - HR 25In Stock
20Expected 2026/06/10
Min.: 1
Mult.: 1

24 VDC 1 Form B (SPST-NC) 2 A 7 kVAC, 7 kVDC 50 W Diode 925 Ohms Through Hole D-HR
Cynergy3 Reed Relays SPST n/c 10kV Isolation 24V Coil UL 36In Stock
Min.: 1
Mult.: 1

24 VDC 1 Form B (SPST-NC) 2 A 7 kVAC, 7 kVDC 50 W Diode 925 Ohms Through Hole DA(UL)
Cynergy3 Reed Relays 10KV 12V SPNC Rhodium - Flying Lead HV contact connections - HR 2In Stock
Min.: 1
Mult.: 1

12 VDC 1 Form B (SPST-NC) 3 A 1 kVAC, 1 kVDC 50 W Diode 240 Ohms Through Hole D-HR
Cynergy3 Reed Relays HV RELAYS 3In Stock
Min.: 1
Mult.: 1

5 VDC 1 Form B (SPST-NC) 2 A 7 kVAC, 7 kVDC 50 W Diode 38 Ohms Through Hole DA(UL)
Cynergy3 Reed Relays 5kV 24V SPNC Tungsten - Flying Lead HV contact connections - HR 8In Stock
Min.: 1
Mult.: 1

24 VDC 1 Form B (SPST-NC) 2 A 3.5 kVAC, 3.5 kVDC 50 W Diode 925 Ohms Through Hole D-HR
Cynergy3 Reed Relays HV RELAYS 16In Stock
Min.: 1
Mult.: 1

24 VDC 1 Form B (SPST-NC) 2 A 7 kVAC, 7 kVDC 50 W Diode 925 Ohms SMD/SMT D
Cynergy3 Reed Relays HV RELAYS 9In Stock
20Expected 2026/06/22
Min.: 1
Mult.: 1

24 VDC 1 Form B (SPST-NC) 2 A 7 kVAC, 7 kVDC 50 W Diode 925 Ohms Through Hole D
Cynergy3 Reed Relays 10KV 05V SPNC Rhodium - Flying Lead HV contact connections - HR 1In Stock
Min.: 1
Mult.: 1

5 VDC 1 Form B (SPST-NC) 3 A 1 kVAC, 1 kVDC 50 W Diode 38 Ohms Through Hole D-HR
Cynergy3 Reed Relays 10KV 05V SPNC Tungsten - Flying Lead HV contact connections - HR 4In Stock
Min.: 1
Mult.: 1

5 VDC 1 Form B (SPST-NC) 2 A 7 kVAC, 7 kVDC 50 W Diode 38 Ohms Through Hole D-HR
Cynergy3 Reed Relays HV RELAYS
60On Order
Min.: 1
Mult.: 1

12 VDC 1 Form B (SPST-NC) 2 A 3.5 kVAC, 3.5 kVDC 50 W Diode 150 Ohms Through Hole DA(UL)
Cynergy3 Reed Relays HV RELAYS
74On Order
Min.: 1
Mult.: 1

12 VDC 1 Form B (SPST-NC) 2 A 7 kVAC, 7 kVDC 50 W Diode 240 Ohms Through Hole D
Cynergy3 Reed Relays HV RELAYS
20Expected 2026/06/12
Min.: 1
Mult.: 1

12 VDC 1 Form B (SPST-NC) 3 A 1 kVAC, 1 kVDC 50 W Diode 240 Ohms Through Hole D
Cynergy3 Reed Relays RR HV n/c 10kV 5V coil standard UL Non-Stocked Lead-Time 18 Weeks
Min.: 20
Mult.: 20

5 VDC 1 Form B (SPST-NC) 3 A 1 kVAC, 1 kVDC 50 W Diode 38 Ohms Through Hole DA(UL)
Cynergy3 Reed Relays RR HV n/c 10kV 12V coil standard UL Non-Stocked Lead-Time 18 Weeks
Min.: 20
Mult.: 20

DA(UL)
Cynergy3 Reed Relays 10KV 24V SPNC Rhodium - Flying Lead HV contact connections - HR Non-Stocked Lead-Time 18 Weeks
Min.: 20
Mult.: 20

24 VDC 1 Form B (SPST-NC) 3 A 1 kVAC, 1 kVDC 50 W Diode 925 Ohms Through Hole D-HR
Cynergy3 Reed Relays RR HV n/c 10kV 24V coil standard UL Non-Stocked Lead-Time 18 Weeks
Min.: 20
Mult.: 20

DA(UL)
Cynergy3 Reed Relays 5kV 05V SPNC Tungsten - Flying Lead HV contact connections - HR Non-Stocked Lead-Time 18 Weeks
Min.: 20
Mult.: 20

5 VDC 1 Form B (SPST-NC) 2 A 3.5 kVAC, 3.5 kVDC 50 W Diode 38 Ohms Through Hole D-HR
Cynergy3 Reed Relays SPST n/c 5kV Isolation 5V Coil UL Non-Stocked Lead-Time 18 Weeks
Min.: 20
Mult.: 20

5 VDC 1 Form B (SPST-NC) 2 A 3.5 kVAC, 3.5 kVDC 50 W Diode 28 Ohms Through Hole DA(UL)
Cynergy3 Reed Relays 7.5kV 05V SPNC Tungsten - Flying Lead HV contact connections - HR Non-Stocked Lead-Time 18 Weeks
Min.: 20
Mult.: 20

5 VDC 1 Form B (SPST-NC) 2 A 5 kVAC, 5 kVDC 50 W Diode 38 Ohms Through Hole D-HR
Cynergy3 Reed Relays SPST n/c 7.5kV Isolation 5V Coil UL Non-Stocked Lead-Time 18 Weeks
Min.: 20
Mult.: 20

5 VDC 1 Form B (SPST-NC) 2 A 5 kVAC, 5 kVDC 50 W Diode 28 Ohms Through Hole DA(UL)
Cynergy3 Reed Relays 5kV 12V SPNC Tungsten - Flying Lead HV contact connections - HR Non-Stocked Lead-Time 18 Weeks
Min.: 20
Mult.: 20

12 VDC 1 Form B (SPST-NC) 2 A 3.5 kVAC, 3.5 kVDC 50 W Diode 240 Ohms Through Hole D-HR
Cynergy3 Reed Relays 10KV 12V SPNC Tungsten - Flying Lead HV contact connections - HR Non-Stocked Lead-Time 18 Weeks
Min.: 20
Mult.: 20

12 VDC 1 Form B (SPST-NC) 2 A 7 kVAC, 7 kVDC 50 W Diode 240 Ohms Through Hole D-HR