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Document Number: 28713

22

Revision: 05-Mar-12

MMU 0102, MMA 0204, MMB 0207 - Professional

Vishay Beyschlag

Professional MELF Resistors

This document is subject to change without notice.

4.39

67 (Cy)

Damp heat,

steady state,

accelerated

(85 ± 2)

C;

(85 ± 5) % RH;

U = 0.3 x



100 V; 1000 h

± (0.25 %

R +10 m

) ±(0.5 % R + 10 m)±(1 % R + 10 m)±(2 % R + 10 m)

4.23

Climatic

sequence:

±

(0.15 % R + 10 m) ± (0.5 % R + 10 m)±(1 % R + 10 m)±(1 % R + 10 m)

4.23.2

2 (Bb)

dry heat

UCT; 16 h

4.23.3

30 (Db)

damp heat,

cyclic

55 °C; 24 h;

90 % RH; 1 cycle

4.23.4

1 (Ab)

cold

LCT; 2 h

4.23.5

13 (M)

low air

pressure

8.5kPa; 2h;

(25 ±

10) °C

4.23.6

30 (Db)

damp heat,

cyclic

55 °C; 24 h;

90 % RH;

5 cycles

4.23.7

-

DC load

U =

U

LCT = - 55 °C;

UCT = 155 °C

-

1 (Ab)

Cold

- 55 °C; 2 h

± (0.05 %

R +5 m

)±(0.1 % R +5 m)

4.19

14 (Na)

Rapid

change of

temperature

30 min at LCT;

30 min at UCT;

LCT = - 55 °C;

UCT = 125 °C

5 cycles

± (0.05 %

R + 10 m

)±(0.1 % R + 10 m)

1000 cycles

±

(0.15 % R +10 m)

±

(0.25 % R + 10 m)

LCT = - 55 °C;

UCT = 155 °C

1000 cycles

±

(0.25 % R +10 m)

± (0.5 %

R +10 m

)

4.13

-

Short time

overload:

standard

operation

mode

U = 2.5 x

2 x U

±

(0.03 % R +5 m)±(0.15 % R +5 m)

Short time

overload:

power

operation

mode

±

(0.05 % R +5 m)±(0.15 % R +5 m)

TEST PROCEDURES AND REQUIREMENTS

EN

60115-1

CLAUSE

IEC

TEST

METHOD

TEST

PROCEDURE

REQUIREMENTS

PERMISSIBLE CHANGE (

R)

STABILITY

CLASS 0.25

OR BETTER

STABILITY

CLASS 0.5

OR BETTER

STABILITY

CLASS 1

OR BETTER

STABILITY

CLASS 2

OR BETTER

Stability for

product types:

MMU 0102

10

 to 221k

1

 to < 10 

< 1



> 221 k



MMA 0204

10

 to 332 k

1

 to < 10 

< 1



> 332 k



MMB 0207

10

 to 1 M

1

 to < 10 

< 1



> 1 M



P

P

P