UL APPROVED* NORMALLY CLOSED, HIGH VOLTAGE RELAYS - 10KV, 7.5KV & 5KV
The DB(UL) series is a UL* approved very high isolation voltages (up
to 10kV) are achieved through the use of high vacuum reed switches
with either rhodium or tungsten contacts and make these relays suitable
for high reliability applications, such as cardiac defibrillators, test
equipment and high voltage power supplies.
A choice of 5kV, 7.5kV and 10kV isolation voltages is available.
The rhodium contact relays have low contact resistance, while the
tungsten contact relays can switch higher voltages, up to 7000V DC/
AC peak.
PCB or panel mount, via nylon studs, versions are available.
Connection options, for the HV, include PCB, solder turret (wire wrap),
flying lead and 0.25” spade terminals.
|
DB(UL) SERIES
Features
• Choice of 10kV, 7.5kV or 5kV Isolation
• Low contact resistance
• PCB or panel mount
• HV connections via flying leads, solder turret (wire wrap),
or 1/4” spade terminals
• Excellent AC characteristics
SPECIFICATIONS
Contact
Contact Form
Contact Material
Isolation Across Contacts
Switching Power Max
Switching Voltage Max.
Switching Current Max.
Carry Current Max
Capacitance Across Contacts
Lifetime Operations
Contact Resistance
Insulation Resistance
m
Ω
max (typical)
kV
W
V
A
A
pF
DC or AC peak
DC or AC peak
DC or AC peak
coil to screen
grounded
dry switching
50W switching
DC or AC peak
Rhodium
10
50
1000
3
4
<0.2
10
9
10
6
50 (15)
10
10
Tungsten
10
50
7000
2
3
<0.2
10
9
10
6
250 (100)
(10
13
)
Units
Condition
10kV
7.5kV
N/C (normally closed)
Rhodium
7.5
50
1000
3
4
<0.2
10
9
10
6
50 (15)
10
10
Tungsten
7.5
50
5000
2
3
<0.2
10
9
10
6
250 (100)
(10
13
)
5kV
Rhodium
5
50
1000
3
4
<0.2
10
9
10
6
50 (15)
10
10
Tungsten
5
50
3500
2
3
<0.2
10
9
10
6
250 (100)
(10
13
)
Page 1
Ω
min (typical)
Copyright © 2021 Sensata Technologies, Inc.
www.sensata.com
Coil
Must Operate Voltage
Must Release Voltage
Operate Time
Release Time
Resistance
Relay
Isolation Contact/Coil
Insulation Resistance Contact
to all Terminals
Environmental Conditions
Operating Temperature Range
Units
V
V
ms
ms
Condition
DC
DC
diode fitted
diode fitted
5V
3.7
0.5
2.0
3.0
38
12V
9
1.25
2.0
3.0
240
24V
20
4
2.0
3.0
925
Ω
Note. The operate / release voltage and coil resistance will change at a rate of 0.4% per degree C. Values are stated at room temperature (20 degrees C)
kV
DC or AC peak
17
10
10
(10
13
)
Ω
min (typical)
ºC
-20 to +70
*Consult factory for UL ratings
These products have been UL approved for use as per pollution degree 2 classification.
If you require further information as to how this may affect product usage,
please contact c3w_sales@sensata.com
.
Page 2
Copyright © 2021 Sensata Technologies, Inc.
www.sensata.com
ORDERING OPTIONS
D
Reed Switch Size
Contact Form
B =
n/c
Example : DBT71210FU
7
12
10
F
U
B
T
Contact Material
T =
Tungsten
R =
Rhodium
Moulding Ref. No.
Coil Voltage
05 =
5Vdc
12 =
12Vdc
24 =
24Vdc
Isolation Between Contacts
10 =
10kV
75 =
7.5kV
05 =
5kV
Mounting or Connection Style
No suffix indicates PCB mount
F =
PCB mount & coil connection with Flying lead HV connection
P =
Panel mount with wire wrap terminals
S =
PCB mount & coil connection with stud fixing & 1/4” spade HV connection
T =
PCB mount & coil connection with stud fixing & wire wrap HV connection
U
U =
indicates UL approved
Made in the UK
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Page 4
CONTACT US
+44 (0)1202 897969
c3w_sales@sensata.com
Cynergy3 Components Ltd.
7 Cobham Road,
Ferndown Industrial Estate,
Wimborne, Dorset,
BH21 7PE, United Kingdom
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