B72214T2301K101 Ver la hoja de datos (PDF) - EPCOS AG

Número de pieza

componentes Descripción

Fabricante

B72214T2301K101

SIOV metal oxide varistors

EPCOS AG 

Housed varistors

ThermoFuse varistors, ETFV14 series

Reliability data

Test

Varistor voltage

Clamping voltage

Surge current derating,

8/20 µs

Surge current derating,

2 ms

Abnormal overvoltage test

Test methods/conditions

Requirement

The voltage between two terminals with To meet the specified value.

the specified measuring current applied

is called Vv (1 mADC @ 0.2 … 2 s).

The maximum voltage between two

terminals with the specified standard

impulse current (8/20 µs) applied.

To meet the specified value.

CECC 42 000, test C 2.1

|∆V/V (1 mA)| ≤10%

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

(measured in direction

of surge current)

No visible damage

|∆V/V (1 mA)| ≤10%

100 surge currents (2 ms), unipolar, (measured in direction

interval 120 s, amplitude corresponding of surge current)

to derating curve for 100 impulses

at 2 ms

No visible damage

UL1449, limited current abnormal over- Any of these phenomena

voltage test. Apply a high AC voltage shall not be observed, or

to ThermoFuse varistor, the amplitude this specimen will be

of overvoltage and current limit will be judged as failed part.

adopted from UL1449 general instruc- 1. Emission of flame,

tion in section 37. The specimen will be molten metal, glowing

tested on a softwood surface covered

or flaming particles

with a double layer of white tissue

through any openings

paper. The specimen is to be loosely

(pre-existed or created

draped with a double layer of cheese- as a result of the test)

cloth. The cheesecloth shall cover

in the product.

openings where flame, molten or other

particles may be expelled as a result of

the test. The test result will be visually

inspected.

2. Charring, glowing, or

flaming of the supporting

surface, tissue paper,

or cheesecloth.

3. Ignition of the enclosure.

4. Creation of any openings

in the enclosure that

result in accessibility of

live parts, when judged

in accordance with

accessibility of live parts,

UL1449 section 13.

Please read Cautions and warnings and

Important notes at the end of this document.

5 11/07

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