B72210S250K101 EPCOS Inc, B72210S250K101 Datasheet - Page 19

• Manufacturer Part Number: B72210S250K101
• Description: Varistor, Circuit Protection; 25Vrms; 77V; 500A; Metal Oxide; 3200pF; Wire; 0.05W; 25ns
• Manufacturer: EPCOS Inc
• Type: MOVr

Specifications of B72210S250K101

• Technology: Metal Oxide
• Capacitance Value: 3200pF
• Clamping Current: 5A
• Clamping Voltage: 77V
• Lead Style: Radial
• Ac Voltage Rating (max): 25VAC
• Dc Voltage Rating (max): 31VDC
• Operating Temp Range: -40C to 85C
• Mounting: Through Hole
• Surge Current (max): 500A
• Lead Spacing: 7.5mm
• Product Depth (mm): 4.2mm
• Product Height (mm): 14.5mm
• Product Diameter (mm): 12mm
• Energy: 3.7Joule
• Varistor Voltage: 39V
• Brand/series: Standard Series
• Capacitance: 3200 pF
• Current, Peak: 500 A
• Dimensions: 12.0 mm (Max.) Dia. x 4.2 mm (Max.) W x 14.5 mm (Max.) H
• Electric Strength: 2.5 kV (RMS) (Min.)
• Energy Rating: 3.7 Joules
• Mounting Style: Leaded
• Package: Leads
• Power Rating: 0.05 W (Max.) @ +85 °C
• Resistance, Insulation: 10 Megohms (Min.)
• 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: 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%