B72220S2301K101 EPCOS Inc, B72220S2301K101 Datasheet - Page 12

• Manufacturer Part Number: B72220S2301K101
• Description: Varistors 300V RMS 20MM RADIAL Varistor S20K300E2
• Manufacturer: EPCOS Inc
• Series: AdvanceDr

Specifications of B72220S2301K101

• Voltage Rating Dc: 385 V
• Voltage Rating Ac: 470 V
• Peak Surge Current: 1000 A
• Surge Energy Rating: 250 J
• Operating Temperature Range: - 40 C to + 85 C
• Mounting: Through Hole
• Dimensions: 21.5 mm Dia. x 25.5 mm L
• Termination Style: Radial
• Varistor Voltage: 470 V
• Peak Surge Current @ 8/20µs: 10000A
• Varistor Case: 20mm DISC
• Clamping Voltage Vc Max: 775V
• Peak Energy (10/1000us): 250J
• Voltage Rating Vdc: 385V
• Voltage Rating Vac: 300V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Reliability data
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.
Leaded varistors
AdvanceD series
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.
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
DC
12
@ 0.2 … 2 s).
11/07
RMS
v
shall be
, 60 s
Requirement
To meet the specified value.
To meet the specified value.
|
|
(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)
|
|
|
≤10%
≤10%
≤10%