B72240B271K1 EPCOS Inc, B72240B271K1 Datasheet - Page 7
B72240B271K1
Manufacturer Part Number
B72240B271K1
Description
Varistors 275V RMS 40MM Varistor B40K275
Manufacturer
EPCOS Inc
Type
MOVr
Series
HighEr
Specifications of B72240B271K1
Voltage Rating Dc
350 V
Voltage Rating Ac
275 V
Clamping Voltage
710 V
Peak Surge Current
40 KA
Capacitance
2700 pF
Operating Temperature Range
- 40 C to + 85 C
Mounting
Screw
Tolerance
10 %
Brand/series
E Series
Current, Peak
40000 A
Current, Surge
40000 A
Dimensions
60 mm W x 55 mm H x 14 mm T
Electric Strength
≥2.5 kV (RMS) (Min.)
Energy Rating
550 Joules
Mounting Style
Leaded
Package
Screw
Power Rating
1.4 W
Resistance, Insulation
≥10 Megohms (Min.)
Technology
Metal Oxide
Temperature, Operating, Maximum
85 °C
Temperature, Operating, Minimum
-40 °C
Terminal Type
Screw
Voltage, Ac
275 VAC
Voltage, Clamping
710 V
Voltage, Dc
350 VDC
Voltage, Operating
275 Vrms⁄350 VDC
Voltage, Varistor
430
Peak Surge Current @ 8/20µs
40kA
Clamping Voltage Vc Max
710V
Peak Energy (10/1000us)
550J
Voltage Rating Vdc
350V
Voltage Rating Vac
275Vrms
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
B72240B0271K001
Reliability data for CECC approved types
Test
Varistor voltage
Clamping voltage
Max. AC operating voltage
Surge current derating,
8/20 µs
Surge current derating,
2 ms
Electric strength
Please read Cautions and warnings and
Important notes at the end of this document.
Test methods/conditions
The voltage between two terminals with
the specified measuring current applied
is called V
The maximum voltage between two
terminals with the specified standard
impulse current (8/20 µs) applied.
CECC 42 000, test 4.20
1000 h at UCT
After having continuously applied
the maximum allowable voltage at UCT
±2 °C for 1000 h, the specimen shall be
stored at room temperature and normal
humidity for 1 to 2 h.
Thereafter, the change of V
measured.
Thereafter, insulation resistance R
shall be measured according to
CECC 42 000, test 4.8 at V = 500 V.
CECC 42 000, test C 2.1
100 surge currents (8/20 µs), unipolar,
interval 30 s, amplitude corresponding
to derating curve for 100 impulses at
20 µs
CECC 42 000, test C 2.1
100 surge currents (2 ms), unipolar,
interval 120 s, amplitude corresponding
to derating curve for 100 impulses at
2 ms
CECC 42 000, test 4.7
Metal balls method, 2500 V
The varistor is placed in a container
holding 1.6 ±0.2 mm diameter metal
balls such that only the terminations of
the varistor are protruding.
The specified voltage shall be applied
between both terminals of the speci-
men connected together and the elec-
trode inserted between the metal balls.
v
(1 mA
HighE, standard, LS40 series
DC
7
@ 0.2 … 2 s).
11/07
RMS
v
shall be
Strap varistors
, 60 s
ins
Requirement
To meet the specified value.
To meet the specified value.
|
R
|
(measured in direction
of surge current)
No visible damage
|
(measured in direction
of surge current)
No visible damage
No breakdown
∆V/V (1 mA)
∆V/V (1 mA)
∆V/V (1 mA)
ins
≥10 MΩ
|
|
|
≤10%
≤10%
≤10%