D/CRCW e3

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Revision: 05-Aug-2022

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Document Number: 20035

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TESTS AND REQUIREMENTS

All executed tests are carried out in accordance with the

following specifications:

EN 60115-1, generic specification

EN 60115-8

(successor

of

EN 140400),

sectional

specification

EN 140401-802, detail specification

IEC 60068-2-xx, test methods

The parameters stated in the Test Procedures and

Requirements table are based on the required tests and

permitted limits of EN 140401-802. The table presents only

the most important tests, for the full test schedule refer to

the documents listed above. However, some additional

tests and a number of improvements against those

minimum requirements have been included.

The testing also covers most of the requirements specified

by EIA/IS-703 and JIS-C-5201-1.

The tests are carried out under standard atmospheric

conditions in accordance with IEC 60068-1, 4.3, whereupon

the following values are applied:

Temperature: 15 °C to 35 °C

Relative humidity: 25 % to 75 %

Air pressure: 86 kPa to 106 kPa (860 mbar to 1060 mbar).

A climatic category LCT / UCT / 56 is applied, defined by the

lower category temperature (LCT), the upper category

temperature (UCT), and the duration of exposure in the

damp heat, steady state test (56 days). The components are

mounted for testing on boards in accordance with EN

60115-8, 2.4.2 unless otherwise specified.

TEST PROCEDURES AND REQUIREMENTS

EN

60115-1

CLAUSE

IEC

60068-2

(1) TEST

METHOD

TEST

PROCEDURE

REQUIREMENTS PERMISSIBLE

CHANGE (

ΔR)

STABILITY CLASS 1

OR BETTER

STABILITY CLASS 2

OR BETTER

Stability for product types:

1

Ω to 10 MΩ

D/CRCW e3

4.5

-

Resistance

-

± 1 %

± 5 %

4.8

-

Temperature coefficient

At (20 / -55 / 20) °C and

(20 / 155 / 20) °C

± 100 ppm/K

± 200 ppm/K

4.25.1

-

Endurance at 70 °C

U =

or

U = Umax.

whichever is the less severe;

1.5 h on; 0.5 h off

70 °C; 1000 h

± (1 %

R + 0.05 Ω)± (2 % R + 0.1 Ω)

70 °C; 8000 h

± (2 %

R + 0.1 Ω)± (4 % R + 0.1 Ω)

4.25.3

-

Endurance at upper

category temperature

155 °C; 1000 h

± (1 %

R + 0.05 Ω)± (2 % R + 0.1 Ω)

4.24

78 (Cab)

Damp heat, steady state

(40 ± 2) °C; 56 days;

(93 ± 3) % RH

± (1 %

R + 0.05 Ω)

4.37

67 (Cy)

Damp heat, steady state,

accelerated

(85 ± 2) °C; (85 ± 5) % RH;

U =

≤ 100 V;

1000 h

± (1 %

R + 0.05 Ω)± (2 % R + 0.1 Ω)

4.23

-

Climatic sequence:

± (1 %

R + 0.05 Ω)± (2 % R + 0.1 Ω)

4.23.2

2 (Bb)

Dry heat

125 °C; 16 h

4.23.3

30 (Db)

Damp

55 °C; 24 h;

≥ 90 % RH; 1 cycle

4.23.4

1 (Ab)

Cold

-55 °C; 2 h

4.23.5

13 (M)

Low air pressure

8.5 kPa; 2 h; (25 ± 10) °C

4.23.6

30 (Db)

Damp heat, cyclic

55 °C; 5 days;

> 90 % RH; 5 cycles

4.23.7

-

DC load

U =

≤ Umax.; 1 min

-

1 (Aa)

Cold

-55 °C; 2 h

± (0.25 %

R + 0.05 Ω) ± (0.5 % R + 0.05 Ω)

4.19

14 (Na)

Rapid change

of temperature

30 min. at -55 °C and 30 min. at 125 °C

1000 cycles

± (1 %

R + 0.05 Ω)

no visible damage

4.13

-

Short time overload

U = 2.5 x

≤ 2 x Umax.;

whichever is the less severe; 5 s

± (2 %

R + 0.05 Ω)

4.27

-

Single pulse high voltage

overload

Severity no. 4:

U = 10 x

or

U = 2 x Umax.;

whichever is the less severe;

10 pulses 10 μs / 700 μs

± (1 %

R + 0.05 Ω)

no visible damage

P

70 x R

0.1 x P

85 x R

P

70 x R

P

70 x R

P

70 x R