Metal Film Resistors

MFR Series

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Issue D · 05.07

Welwyn Components

136

Graph 1 – Load for 1000 hours at 70°C: maximum changes

Graph 2 – Load for 1000 hours at 70°C: maximum changes

CECC 40101-019

Actual Performance

Requirements

Maximum

Typical

Load at commercial rating : 1000 hours at 70°C

1

h

p

a

r

G

e

e

S

8

.

0

%

R

Load at CECC rating :

1000 hours at 70°C

R %

2

0.5

See Graph 1

Shelf life :

12 months at room temperature

R %

Not Specified

0.1

0.07

C

°

5

5

1

t

a

o

r

e

z

g

n

it

a

r

e

D

Short term overload

R %

0.5

0.25

0.03

Climatic

R %

2

0.5

0.2

6

5

/

5

2

1

/

5

5

y

r

o

g

e

t

a

c

c

it

a

m

il

C

Long term damp heat

R %

2

0.5

0.3

Temperature rapid change

R %

0.5

0.25

0.05

Resistance to solder heat

R %

0.5

0.25

0.02

Vibration and bump

R %

0.5

0.1

0.01

7

0

.

0

1

.

0

d

e

if

i

c

e

p

s

t

o

N

V

/

V

µ

)

y

c

n

e

u

q

e

r

f

f

o

e

d

a

c

e

d

a

n

i(

.

e

s

i

o

N

G

1

>

G

1

>

G

1

>

s

m

h

o

e

c

n

a

t

s

i

s

e

r

n

o

it

a

l

u

s

n

I

n

i

m

0

0

4

n

i

m

0

0

4

n

i

m

0

5

3

s

tl

o

v

f

o

o

r

p

e

g

a

tl

o

V

Pulse handling

Data available upon request

Performance Data - Type MFR 3

CECC 40101-019

CECC 40101-803

Actual Performance

Requirements

Requirements

Maximum

Typical

Load at commercial rating :

1000 hours at 70°C

2

h

p

a

r

G

e

e

S

8

.

0

%

R

Load at CECC rating :

1000 hours at 70°C

R %

2

1

0.5

See Graph 2

Shelf life :

12 months at room temperature

R %

Not specified

Not Specified

0.1

0.07

C

°

5

5

1

t

a

o

r

e

z

C

°

5

5

1

t

a

o

r

e

z

g

n

it

a

r

e

D

Short term overload

R %

0.5

0.25

0.25

0.01

Climatic

R %

2

1

0.5

0.2

6

5

/

5

2

1

/

5

5

6

5

/

5

2

1

/

5

5

y

r

o

g

e

t

a

c

c

it

a

m

il

C

Long term damp heat

R %

2

1

0.5

0.3

Temperature rapid change

R %

0.5

0.25

0.25

0.04

Resistance to solder heat

R %

0.5

0.25

0.25

0.07

Vibration and bump

R %

0.5

0.25

0.1

0.01

Noise. (in a decade of frequency)

µV/V

Not Specified

Not Specified

0.1

0.1

Insulation resistance

ohms

>1G

>1G

>1G

>1G

n

i

m

0

0

5

n

i

m

0

0

5

n

i

m

0

0

4

n

i

m

0

0

5

s

tl

o

v

f

o

o

r

p

e

g

a

tl

o

V

t

s

e

u

q

e

r

n

o

p

u

e

l

b

a

li

a

v

a

a

t

a

D

g

n

il

d

n

a

h

e

s

l

u

P

Performance Data - Type MFR 4