B72240B251K1 EPCOS Inc, B72240B251K1 Datasheet - Page 9

• Manufacturer Part Number: B72240B251K1
• Description: Varistors 250V RMS 40MM Varistor B40K250
• Manufacturer: EPCOS Inc
• Type: MOVr

Specifications of B72240B251K1

• Voltage Rating Dc: 320 V
• Voltage Rating Ac: 250 V
• Clamping Voltage: 650 V
• Peak Surge Current: 40 KA
• Capacitance: 2900 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: 490 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: 250 VAC
• Voltage, Clamping: 650 V
• Voltage, Dc: 320 VDC
• Voltage, Operating: 250 Vrms⁄320 VDC
• Voltage, Varistor: 390
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: B72240B0251K001

Reliability data for CECC approved types
Test
Resistance to soldering heat IEC 60068-2-20, test Tb, method 1A,
Tensile strength
Vibration
Shock
Flammability
Note:
UCT = Upper category temperature
LCT = Lower category temperature
R
Please read Cautions and warnings and
Important notes at the end of this document.
ins
= Insulation resistance to CECC 42 000, test 4.8
Test methods/conditions
260 °C, 10 s:
Each lead shall be dipped into a solder
bath having a temperature of 260 ±5 °C
to a point 2.0 to 2.5 mm from the body
of the unit, be held there for 10 ±1 s
and then be stored at room temperature
and normal humidity for 1 to 2 h.
The change of V
damages shall be examined.
IEC 60068-2-21, test Ua1
After gradually applying the force
specified below and keeping the unit
fixed for 10 s, the terminal shall be
visually examined for any damage.
Force = 20 N
IEC 60068-2, test Fc
frequency range: 10 … 55 Hz
amplitude:
duration:
pulse:
After repeatedly applying a single
harmonic vibration according to the
table below.
The change of V
damages shall be examined.
IEC 60068-2-27, test Ea
pulse duration:
max. acceleration: 490 m/s
number of shocks: 6 · 3
pulse:
IEC 60695-2-2 (needle flame test)
Severity: vertical 10 s
HighE, standard, LS40 series
v
v
and mechanical
and mechanical
0.75 mm or 98 m/s
6 h (3 · 2 h)
sine wave
9
half sine
11 ms
11/07
2
Strap varistors
2
Requirement
|
No visible damage
|
No break of solder joint,
no wire break
|
No visible damage
|
No visible damage
5 s max.
∆V/V (1 mA)
∆V/V (1 mA)
∆V/V (1 mA)
∆V/V (1 mA)
|
|
|
|
≤5%
≤5%
≤5%
≤5%