Precision Metal

Film Resistors

RCP series

RC55P Values 10

≤ 100k

Other Values/Styles

Actual Performance

*Actual Performance

Maximum

Typical

Maximum

Typical

Load at rated power : 1000 hrs at 70°C

∆R %

0.10

0.03

0.5

0.1

Dry heat : 1000 hrs at 155°C

∆R %

0.3

0.1

1.0

0.15

Shelf life : 12 months at room temperature

∆R %

0.015

0.003

0.1

0.03

C

°

5

5

1

t

a

o

r

e

Z

C

°

5

5

1

t

a

o

r

e

Z

C

°

0

7

t

a

r

e

w

o

p

d

e

t

a

r

m

o

r

f

g

n

i

t

a

r

e

D

Short term overload

∆R %

0.5

0.005

0.1

0.02

Climatic

∆R %

0.25

0.05

0.3

0.1

6

5

/

5

5

1

/

5

5

6

5

/

5

5

1

/

5

5

y

r

o

g

e

t

a

c

c

i

t

a

m

il

C

Long term damp heat

∆R %

0.25

0.05

0.5

0.1

Temperature rapid change

∆R %

0.04

0.02

0.2

0.05

Resistance to solder heat

∆R %

0.02

0.003

0.06

0.03

Vibration and bump

∆R %

0.2

0.002

0.06

0.02

1

.

0

0

.

1

3

0

.

0

1

.

0

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

1

<

1

<

V

/

m

p

p

e

c

n

a

t

s

i

s

e

r

f

o

t

n

e

i

c

i

f

f

e

o

c

e

g

a

t

l

o

V

Matched Sets and Networks

Welwyn has many years experience in the supply of matched

sets of precision resistors.

Resistors can be supplied matched for tolerance and TCR

down to ±0.02% and ±2ppm/°C, either as separate resistors

or pre-assembled and encapsulated within a plastic box.

The individual resistors within a set or module can be

manufactured with a tolerance of ±0.05% and a TCR of

±5ppm/°C.

Precision Metal

Film Resistors

RCP series

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

07.11

Welwyn Components

Application Notes

Performance Data

*An 0.01 ahm addition to be added to the performance claims of all resistors <10R.

Table of Resistance Restrictions

Tolerance

0

7

C

R

5

6

C

R

5

5

C

R

R

C

T

0.05%

0.1 - 0.25%

0.05%

0.1 - 0.25%

0.05%

0.1 - 0.25%

ppm/°C

10

10R to 500K

10R to 1M

10R to 1M

2R49 to 1M

2R49 to 2M

2R49 to 2M

1R to 2M

10R to 1M

10R to 1M

10R to 1M

10R to 1M

10R to 500K

1R to 500K

1R to 1M

1R to 1M

1R to 2M

1R to 4M

1R to 4M

10R to 1M

10R to 1M

10R to 1M

10R to 1M

10R to 1M

10R to 1M

5R to 1M

5R to 2M

5R to 2M

1R to 2M

10R to 1M

10R to 1M

10R to 1M

10R to 1M

10R to 1M

10R to 1M

10R to 2M

10R to 5M

5R to 10M

1R to 10M

1R to 1M

1R to 2M

1R to 5M

1R to 10M

1R to 10M

1R to 1M

1R to 1M

1R to 2M

1R to 4M

1R to 4M

10R to 500K 10R to 500K

1R to 500K 10R to 750K 10R to 750K 10R to 750K

15

25

Note1:

1. Based on sampling. 100% screened product is available.

2. For maximum availability, where the ohmic value permits, 25ppm/˚C is preferred to 50 or 100ppm/˚C.

3. For maximum availability, where the ohmic value permits, 0.25% is preferred to 0.5%.

Packaging

The standard method of packaging RC55P resistors is taped in ammopacks. Taped resistors on reel or loose packed components

can also be supplied by special request. In the case of tape packed components the usable lead length is reduced by the width

of the tape.

Make Possible

11.14

General Note

TT Electronics reserves the right to make changes in product specification without notice or liability.

All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.

© TT Electronics plc

www.ttelectronicsresistors.com