Sensata-Tech-DBR72475FU
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DB(UL) SERIES
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 5k
V
,
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 H
V
,
i
nclude PCB, solder turret (wire wrap),
flying lead and 0.25” spade terminals.
Features
• Choice of 10k
V
,
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
Units
Condition
10kV
7.5kV
5kV
Contact
N/C (normally closed)
Contact Form
Rhodium Tungsten Rhodium Tungsten Rhodium Tungsten
Contact Material
kV
W
V
DC or AC peak
10
50
1000
3
10
50
7000
2
7.5
50
7.5
50
5
50
1000
3
5
50
3500
2
Isolation Across Contacts
Switching Power Max
Switching Voltage Max.
Switching Current Max.
Carry Current Max
DC or AC peak
DC or AC peak
DC or AC peak
1000
3
5000
2
A
A
4
3
4
3
4
3
coil to screen
grounded
pF
<0.2
<0.2
<0.2
<0.2
<0.2
<0.2
Capacitance Across Contacts
Lifetime Operations
dry switching
10
9
10
6
10
9
10
6
10
9
10
6
10
9
10
6
10
9
10
6
10
9
10
6
50W switching
50 (15)
10
10
250 (100)
(10
13
)
50 (15)
10
10
250 (100)
(10
13
)
50 (15)
10
10
250 (100)
(10
13
)
m
Ω
max (typical)
Ω
min (typical)
Contact Resistance
Insulation Resistance
Page 1
Copyright © 2021 Sensata Technologies, Inc.
Units
V
Condition
DC
5V
3.7
0.5
2.0
3.0
38
12V
9
24V
20
Coil
Must Operate Voltage
Must Release Voltage
Operate Time
Release Time
Resistance
V
DC
1.25
2.0
3.0
240
4
ms
ms
diode fitted
diode fitted
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)
Relay
kV
DC or AC peak
17
Isolation Contact/Coil
Insulation Resistance Contact
to all Terminals
10
10
(10
13
)
Ω
min (typical)
Environmental Conditions
ºC
-20 to +70
Operating Temperature Range
*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.
DIMENSIONS
All dimensions are in millimeters.
Page
3
Copyright © 2021 Sensata Technologies, Inc.
Example : DBT71210FU
ORDERING OPTIONS
D
B
T
7
12
10
F
U
Reed Switch Size
Contact Form
B =
n/c
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
Page 4
Made in the UK
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Y
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NCLUDING ACCURACY OR COMPLETENESS. SENSATA DISCLAIMS
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ITNESS FOR A PARTICULAR PURPOSE, QUIET
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CONTACT US
+44 (0)1202 897969
Cynergy3 Components Ltd.
7 Cobham Road,
Ferndown Industrial Estate,
Wimborne, Dorset,
BH21 7PE, United Kingdom
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