B72220S250K101 EPCOS Inc, B72220S250K101 Datasheet - Page 19
![METAL OXIDE VARISTOR, 31V, 77V, RAD](/photos/22/0/220032/4617291_sml.jpg)
B72220S250K101
Manufacturer Part Number
B72220S250K101
Description
METAL OXIDE VARISTOR, 31V, 77V, RAD
Manufacturer
EPCOS Inc
Type
MOVr
Datasheet
1.S05K140.pdf
(36 pages)
Specifications of B72220S250K101
Suppressor Type
Varistor
Peak Surge Current @ 8/20µs
2kA
Varistor Case
20mm DISC
Clamping Voltage Vc Max
77V
Peak Energy (10/1000us)
22J
Voltage Rating Vdc
31V
Voltage Rating Vac
25V
Brand/series
Standard Series
Capacitance
11100 pF
Current, Peak
2000 A
Dimensions
21.5 mm (Max.) Dia. x 4.7 mm (Max.) W x 25.5 mm (Max.) H
Electric Strength
2.5 kV (RMS) (Min.)
Energy Rating
22 Joules
Mounting Style
Leaded
Package
Leads
Power Rating
0.20 W (Max.) @ +85 °C
Resistance, Insulation
10 Megohms (Min.)
Technology
Metal Oxide
Temperature, Operating, Maximum
85 °C
Temperature, Operating, Minimum
-40 °C
Terminal Type
Tinned Copper
Time, Response
25 ns (Max.)
Voltage, Ac
25 VAC
Voltage, Clamping
77 V
Voltage, Dc
31 VDC
Voltage, Operating
25 Vrms @ +85 °C, 31 VDC @ +85 °C
Voltage, Varistor
39
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Reliability data
Test
Climatic sequence
Fast temperature cycling
Damp heat, steady state
Solderability
Please read Cautions and warnings and
Important notes at the end of this document.
Test methods/conditions
CECC 42 000, test 4.16
The specimen shall be subjected to:
a) dry heat at UCT, 16 h
b) damp heat, 1st cycle:
c) cold, LCT, 2 h
d) damp heat, additional 5 cycles:
Then the specimen shall be stored at
room temperature and normal humidity
for 1 to 2 h.
Thereafter, the change of V
measured. Thereafter, insulation resis-
tance R
to CECC 42 000, test 4.8 at V = 500 V.
IEC 60068-2-14, test Na, LCT/UCT,
dwell time 30 min, 5 cycles
The specimen shall be subjected to
40 ±2 °C, 90 to 95% r. H. for 56 days
without load / with 10% of the maximum
continuous DC operating voltage V
Then stored at room temperature and
normal humidity for 1 to 2 h.
Thereafter, the change of V
measured. Thereafter, insulation resis-
tance R
to CECC 42 000, test 4.8 at V = 500 V.
IEC 60068-2-20, test Ta,
method 1 with modified conditions for
lead-free solder alloys: 245 °C, 3 s:
After dipping the terminals to a depth
of approximately 3 mm from the body
in a soldering bath of 245 °C for 3 s, the
terminals shall be visually examined.
55 °C, 93% r. H., 24 h
55 °C/25 °C, 93% r. H., 24 h/cycle.
ins
ins
shall be measured according
shall be measured according
19
11/07
v
v
shall be
shall be
Leaded varistors
StandarD series
DC
.
Requirement
|
R
|
No visible damage
|
R
The inspection shall be
carried out under adequate
light with normal eyesight or
with the assistance of a
magnifier capable of giving
a magnification of 4 to
10 times. The dipped sur-
face shall be covered with
a smooth and bright solder
coating with no more than
small amounts of scattered
imperfections such as
pinholes or un-wetted or
de-wetted areas. These
imperfections shall not be
concentrated in one area.
∆V/V (1 mA)
∆V/V (1 mA)
∆V/V (1 mA)
ins
ins
≥1 MΩ
≥1 MΩ
|
|
|
≤10%
≤5%
≤10%