Precision Metal

Film Resistors

RCP series

uprated power

General Note

Welwyn Components reserves the right to make changes in product specification without notice or liability.

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

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

176

RC55P

RC65P

RC70P

Notes

Power rating at 70°C

watts

0.5

1.0

1.5

Resistance range

ohms

1R to 4M

1R to 4M

1R to 10M

Limiting element voltage

volts

350

500

500

Isolation voltage

volts

500

500

700

TCR (20 to +70°C) & codes

ppm/°C

5(V), 10(T), 15(Y), 25(D), 50(C), & 100(Z)

See resistance

Resistance tolerance (code)

%

0.05(W), 0.1(B), 0.25(C), 0.5(D), & 1(F)

restrictions

Standard values

E24, E96 preferred

Any value to order

Thermal impedance

°C/watt

110

70

60

Ambient temperature range

°C

-55 to +155

Electrical Data

Issue B · 03.02

A subsidiary of

TT electronics plc

Welwyn Components

Construction

Ceramic rods are coated with a metal film and plated steel

caps are force fitted. A helical cut is used to adjust the film to

its final value.

Termination wires are welded to the caps and the resistor is

protected with a specially formulated epoxy coating.

Terminations

Material

Solder-coated copper wire.

Strength

The terminations meet the requirements of

IEC 68.2.21

Solderability

The terminations meet the requirements of

IEC 115-1, Clause 4.17.3.2

Dimensions (mm) and Weight (g)

PCB

Min

mounting

Bend

Wt.

Type

L Max

D Max

f min

d nom.

centres

Radius

nom.

RC55P

7.2

2.5

30

0.6

10.2

0.6

0.24

RC65P

10.0

3.7

30

0.6

12.7

0.6

0.40

RC70P

15.5

5.5

30

0.8

18.4

1.2

1.15

Physical Data

L

D

f

d

Marking

Type reference, TCR code, resistance value and tolerance

code. The resistance value marking conforms to IEC 62.

Solvent Resistance

The body protection and marking are resistant to all normal

industrial cleaning fluids suitable for printed circuits.