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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.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Coil Voltage	Relay Contact Form	Power Rating	Switching Voltage	Coil Suppression Diode	Coil Resistance	Termination Style	Series
Reed Relays HV RELAYS DBT71205U Cynergy3 1: $53.20 56In Stock	Mfr. Part No. DBT71205U Mouser Part No 285-DBT71205U	Cynergy3	Reed Relays HV RELAYS Learn More about Cynergy3 db high voltage relays	Datasheet	56In Stock	$53.20 $50.67 $48.40 $46.83	Min.: 1 Mult.: 1	12 VDC	1 Form B (SPST-NC)	50 W	3.5 kVAC, 3.5 kVDC	Diode	150 Ohms	Through Hole	DA(UL)
Reed Relays HV RELAYS DBT71210 Cynergy3 1: $67.41 62In Stock	Mfr. Part No. DBT71210 Mouser Part No 285-DBT71210	Cynergy3	Reed Relays HV RELAYS Learn More about Cynergy3 db high voltage relays	Datasheet	62In Stock	$67.41 $64.63 $61.52 $59.72	Min.: 1 Mult.: 1	12 VDC	1 Form B (SPST-NC)	50 W	7 kVAC, 7 kVDC	Diode	240 Ohms	Through Hole	D
Reed Relays HV RELAYS DBT72410 Cynergy3 1: $67.41 200In Stock 260Expected 2026/12/04	Mfr. Part No. DBT72410 Mouser Part No 285-DBT72410	Cynergy3	Reed Relays HV RELAYS Learn More about Cynergy3 db high voltage relays	Datasheet	200In Stock 260Expected 2026/12/04	$67.41 $64.23 $63.42	Min.: 1 Mult.: 1	24 VDC	1 Form B (SPST-NC)	50 W	7 kVAC, 7 kVDC	Diode	925 Ohms	Through Hole	D
Reed Relays 10KV 24V SPNC Tungsten - Flying Lead HV contact connections - HR DBT72410F-HR Cynergy3 1: $92.19 33In Stock	Mfr. Part No. DBT72410F-HR Mouser Part No 285-DBT72410F-HR	Cynergy3	Reed Relays 10KV 24V SPNC Tungsten - Flying Lead HV contact connections - HR Learn More about Cynergy3 db high voltage relays	Datasheet	33In Stock	$92.19 $87.78 $83.82 $81.35	Min.: 1 Mult.: 1	24 VDC	1 Form B (SPST-NC)	50 W	7 kVAC, 7 kVDC	Diode	925 Ohms	Through Hole	D-HR
Reed Relays HV RELAYS DBT70510 Cynergy3 1: $67.41 19In Stock 60Expected 2027/01/27	Mfr. Part No. DBT70510 Mouser Part No 285-DBT70510	Cynergy3	Reed Relays HV RELAYS Learn More about Cynergy3 db high voltage relays	Datasheet	19In Stock 60Expected 2027/01/27	$67.41 $64.23 $62.87	Min.: 1 Mult.: 1	5 VDC	1 Form B (SPST-NC)	50 W	7 kVAC, 7 kVDC	Diode	38 Ohms	Through Hole	D
Reed Relays HV RELAYS DBT72410P Cynergy3 1: $80.18 7In Stock 20Expected 2027/01/28	Mfr. Part No. DBT72410P Mouser Part No 285-DBT72410P	Cynergy3	Reed Relays HV RELAYS Learn More about Cynergy3 db high voltage relays	Datasheet	7In Stock 20Expected 2027/01/28	$80.18 $76.36 $72.85 $72.18	Min.: 1 Mult.: 1	24 VDC	1 Form B (SPST-NC)	50 W	7 kVAC, 7 kVDC	Diode	925 Ohms	SMD/SMT	D
Reed Relays HV RELAYS DBT72410S Cynergy3 1: $70.27 7In Stock	Mfr. Part No. DBT72410S Mouser Part No 285-DBT72410S	Cynergy3	Reed Relays HV RELAYS Learn More about Cynergy3 db high voltage relays	Datasheet	7In Stock	$70.27 $66.91	Min.: 1 Mult.: 1	24 VDC	1 Form B (SPST-NC)	50 W	7 kVAC, 7 kVDC	Diode	925 Ohms	Through Hole	D
Reed Relays SPST n/c 10kV Isolation 24V Coil UL DBT72410U Cynergy3 1: $77.55 6In Stock	Mfr. Part No. DBT72410U Mouser Part No 285-DBT72410U	Cynergy3	Reed Relays SPST n/c 10kV Isolation 24V Coil UL Learn More about Cynergy3 db high voltage relays	Datasheet	6In Stock	$77.55 $73.89 $70.52 $69.45	Min.: 1 Mult.: 1	24 VDC	1 Form B (SPST-NC)	50 W	7 kVAC, 7 kVDC	Diode	925 Ohms	Through Hole	DA(UL)
Reed Relays 10KV 05V SPNC Rhodium - Flying Lead HV contact connections - HR DBR70510F-HR Cynergy3 1: $88.86 1In Stock	Mfr. Part No. DBR70510F-HR Mouser Part No 285-DBR70510F-HR	Cynergy3	Reed Relays 10KV 05V SPNC Rhodium - Flying Lead HV contact connections - HR Learn More about Cynergy3 db high voltage relays	Datasheet	1In Stock	$88.86 $84.67 $80.81 $78.43	Min.: 1 Mult.: 1	5 VDC	1 Form B (SPST-NC)	50 W	1 kVAC, 1 kVDC	Diode	38 Ohms	Through Hole	D-HR
Reed Relays 10KV 12V SPNC Rhodium - Flying Lead HV contact connections - HR DBR71210F-HR Cynergy3 1: $88.86 2In Stock	Mfr. Part No. DBR71210F-HR Mouser Part No 285-DBR71210F-HR	Cynergy3	Reed Relays 10KV 12V SPNC Rhodium - Flying Lead HV contact connections - HR Learn More about Cynergy3 db high voltage relays	Datasheet	2In Stock	$88.86 $84.67 $80.81 $78.43	Min.: 1 Mult.: 1	12 VDC	1 Form B (SPST-NC)	50 W	1 kVAC, 1 kVDC	Diode	240 Ohms	Through Hole	D-HR
Reed Relays HV RELAYS DBT70510U Cynergy3 1: $77.55 3In Stock	Mfr. Part No. DBT70510U Mouser Part No 285-DBT70510U	Cynergy3	Reed Relays HV RELAYS Learn More about Cynergy3 db high voltage relays	Datasheet	3In Stock	$77.55 $73.89 $70.52 $68.44	Min.: 1 Mult.: 1	5 VDC	1 Form B (SPST-NC)	50 W	7 kVAC, 7 kVDC	Diode	38 Ohms	Through Hole	DA(UL)
Reed Relays 5kV 24V SPNC Tungsten - Flying Lead HV contact connections - HR DBT72405F-HR Cynergy3 1: $68.84 8In Stock	Mfr. Part No. DBT72405F-HR Mouser Part No 285-DBT72405F-HR	Cynergy3	Reed Relays 5kV 24V SPNC Tungsten - Flying Lead HV contact connections - HR Learn More about Cynergy3 db high voltage relays	Datasheet	8In Stock	$68.84 $60.19 $57.55 $55.65	Min.: 1 Mult.: 1	24 VDC	1 Form B (SPST-NC)	50 W	3.5 kVAC, 3.5 kVDC	Diode	925 Ohms	Through Hole	D-HR
Reed Relays HV RELAYS DBR71210 Cynergy3 1: $64.55 40Expected 2026/12/23	Mfr. Part No. DBR71210 Mouser Part No 285-DBR71210	Cynergy3	Reed Relays HV RELAYS Learn More about Cynergy3 db high voltage relays	Datasheet	40Expected 2026/12/23	$64.55 $61.48 $58.68 $56.96	Min.: 1 Mult.: 1	12 VDC	1 Form B (SPST-NC)	50 W	1 kVAC, 1 kVDC	Diode	240 Ohms	Through Hole	D
Reed Relays HV RELAYS DBR72410 Cynergy3 1: $64.55 60On Order	Mfr. Part No. DBR72410 Mouser Part No 285-DBR72410	Cynergy3	Reed Relays HV RELAYS Learn More about Cynergy3 db high voltage relays	Datasheet	60On Order On Order Ship Dates Mfr. No: DBR72410 Stock: 0 On Order: 20 Expected 2026/10/29 40 Expected 2027/01/27 Factory Lead Time: 19 Weeks	$64.55 $61.48 $58.68 $56.96	Min.: 1 Mult.: 1	24 VDC	1 Form B (SPST-NC)	50 W	1 kVAC, 1 kVDC	Diode	925 Ohms	Through Hole	D
Reed Relays RR HV n/c 10kV 5V coil standard UL DBR70510U Cynergy3 20: $69.22 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. DBR70510U Mouser Part No 285-DBR70510U	Cynergy3	Reed Relays RR HV n/c 10kV 5V coil standard UL Learn More about Cynergy3 db high voltage relays	Datasheet	Non-Stocked Lead-Time 18 Weeks	$69.22 $68.95 $67.94	Min.: 20 Mult.: 20	5 VDC	1 Form B (SPST-NC)	50 W	1 kVAC, 1 kVDC	Diode	38 Ohms	Through Hole	DA(UL)
Reed Relays RR HV n/c 10kV 12V coil standard UL DBR71210U Cynergy3 20: $69.22 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. DBR71210U Mouser Part No 285-DBR71210U	Cynergy3	Reed Relays RR HV n/c 10kV 12V coil standard UL Learn More about Cynergy3 db high voltage relays	Datasheet	Non-Stocked Lead-Time 18 Weeks	$69.22 $68.95 $67.94	Min.: 20 Mult.: 20								DA(UL)
Reed Relays 10KV 24V SPNC Rhodium - Flying Lead HV contact connections - HR DBR72410F-HR Cynergy3 20: $84.67 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. DBR72410F-HR Mouser Part No 285-DBR72410F-HR	Cynergy3	Reed Relays 10KV 24V SPNC Rhodium - Flying Lead HV contact connections - HR Learn More about Cynergy3 db high voltage relays	Datasheet	Non-Stocked Lead-Time 18 Weeks	$84.67 $84.45	Min.: 20 Mult.: 20	24 VDC	1 Form B (SPST-NC)	50 W	1 kVAC, 1 kVDC	Diode	925 Ohms	Through Hole	D-HR
Reed Relays RR HV n/c 10kV 24V coil standard UL DBR72410U Cynergy3 20: $69.22 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. DBR72410U Mouser Part No 285-DBR72410U	Cynergy3	Reed Relays RR HV n/c 10kV 24V coil standard UL Learn More about Cynergy3 db high voltage relays	Datasheet	Non-Stocked Lead-Time 18 Weeks	$69.22	Min.: 20 Mult.: 20								DA(UL)
Reed Relays 5kV 05V SPNC Tungsten - Flying Lead HV contact connections - HR DBT70505F-HR Cynergy3 20: $60.19 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. DBT70505F-HR Mouser Part No 285-DBT70505F-HR	Cynergy3	Reed Relays 5kV 05V SPNC Tungsten - Flying Lead HV contact connections - HR Learn More about Cynergy3 db high voltage relays	Datasheet	Non-Stocked Lead-Time 18 Weeks	$60.19 $57.55 $55.65	Min.: 20 Mult.: 20	5 VDC	1 Form B (SPST-NC)	50 W	3.5 kVAC, 3.5 kVDC	Diode	38 Ohms	Through Hole	D-HR
Reed Relays SPST n/c 5kV Isolation 5V Coil UL DBT70505U Cynergy3 20: $50.67 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. DBT70505U Mouser Part No 285-DBT70505U	Cynergy3	Reed Relays SPST n/c 5kV Isolation 5V Coil UL Learn More about Cynergy3 db high voltage relays	Datasheet	Non-Stocked Lead-Time 18 Weeks	$50.67 $50.66	Min.: 20 Mult.: 20	5 VDC	1 Form B (SPST-NC)	50 W	3.5 kVAC, 3.5 kVDC	Diode	28 Ohms	Through Hole	DA(UL)
Reed Relays 10KV 05V SPNC Tungsten - Flying Lead HV contact connections - HR DBT70510F-HR Cynergy3 20: $87.78 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. DBT70510F-HR Mouser Part No 285-DBT70510F-HR	Cynergy3	Reed Relays 10KV 05V SPNC Tungsten - Flying Lead HV contact connections - HR Learn More about Cynergy3 db high voltage relays	Datasheet	Non-Stocked Lead-Time 18 Weeks	$87.78 $85.15 $85.07	Min.: 20 Mult.: 20	5 VDC	1 Form B (SPST-NC)	50 W	7 kVAC, 7 kVDC	Diode	38 Ohms	Through Hole	D-HR
Reed Relays 7.5kV 05V SPNC Tungsten - Flying Lead HV contact connections - HR DBT70575F-HR Cynergy3 20: $73.11 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. DBT70575F-HR Mouser Part No 285-DBT70575F-HR	Cynergy3	Reed Relays 7.5kV 05V SPNC Tungsten - Flying Lead HV contact connections - HR Learn More about Cynergy3 db high voltage relays	Datasheet	Non-Stocked Lead-Time 18 Weeks	$73.11 $72.77 $71.71	Min.: 20 Mult.: 20	5 VDC	1 Form B (SPST-NC)	50 W	5 kVAC, 5 kVDC	Diode	38 Ohms	Through Hole	D-HR
Reed Relays SPST n/c 7.5kV Isolation 5V Coil UL DBT70575U Cynergy3 20: $61.53 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. DBT70575U Mouser Part No 285-DBT70575U	Cynergy3	Reed Relays SPST n/c 7.5kV Isolation 5V Coil UL Learn More about Cynergy3 db high voltage relays	Datasheet	Non-Stocked Lead-Time 18 Weeks	$61.53 $58.81 $56.89	Min.: 20 Mult.: 20	5 VDC	1 Form B (SPST-NC)	50 W	5 kVAC, 5 kVDC	Diode	28 Ohms	Through Hole	DA(UL)
Reed Relays 5kV 12V SPNC Tungsten - Flying Lead HV contact connections - HR DBT71205F-HR Cynergy3 20: $60.19 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. DBT71205F-HR Mouser Part No 285-DBT71205F-HR	Cynergy3	Reed Relays 5kV 12V SPNC Tungsten - Flying Lead HV contact connections - HR Learn More about Cynergy3 db high voltage relays	Datasheet	Non-Stocked Lead-Time 18 Weeks	$60.19 $57.55 $55.65	Min.: 20 Mult.: 20	12 VDC	1 Form B (SPST-NC)	50 W	3.5 kVAC, 3.5 kVDC	Diode	240 Ohms	Through Hole	D-HR
Reed Relays 10KV 12V SPNC Tungsten - Flying Lead HV contact connections - HR DBT71210F-HR Cynergy3 20: $87.78 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. DBT71210F-HR Mouser Part No 285-DBT71210F-HR	Cynergy3	Reed Relays 10KV 12V SPNC Tungsten - Flying Lead HV contact connections - HR Learn More about Cynergy3 db high voltage relays	Datasheet	Non-Stocked Lead-Time 18 Weeks	$87.78 $83.82 $81.35	Min.: 20 Mult.: 20	12 VDC	1 Form B (SPST-NC)	50 W	7 kVAC, 7 kVDC	Diode	240 Ohms	Through Hole	D-HR

DB(UL) Normally Closed High Voltage Relays

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