Vitreous Enamelled

Wirewound Resistors

V700 (RB Style) Series

www.bitechnologies.com www.irctt.com www.welwyn-tt.com

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

09. 11

Vitreous Enamelled

Wirewound Resistors

V700 (RB Style) Series

Stability for harsh environments

Overload characteristics ideal for

protection circuits

High stability and reliability

High power dissipation for size

Impervious lead free vitreous enamel coating

Standard values

E24 preferred. Other values to special order

Thermal impedance

°C/watt

44

32

88

36

58

Ambient temperature range

°C

-55 to 200

Maximum Dimensions (mm) and Weight (g)

Type

L max

D max

f min

d max

Wt. Nom

V757 (RB57)

22.2

8

30

0.88

2

V758 (RB58)

47

11

30

0.88

9

V759 (RB59)

12.7

5.6

30

0.88

1

V760 (RB60)

36

10.0

30

0.88

4

V761 (RB61)

23

7.0

30

0.88

2

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

87

V757

V758

V759

V760

V761

(RB57)

(RB58)

(RB59)

(RB60)

(RB61)

Power rating at 25°C

watts

7

11.0

3.0

8.0

5.0

Resistance range

ohms

0R1 to 20K

0R2 to 82K

0R1 to 10K

0R1 to 56K

0R1 to 15K

Limiting element voltage

volts

200

400

100

250

160

TCR

ppm/°C

Typically: +75

Maximum +120

Resistance tolerance

%

5

Closer tolerances to special order

Electrical Data

Physical Data

03. 08

A subsidiary of

TT electronics plc

Welwyn Components

L

D

f

d

Construction

A high purity ceramic substrate is assembled with force fit

end caps to which are welded the termination wires.

The resistive element is wound on the substrate and welded to

the caps; the vitreous enamel protective coating is then applied.

OBSOLETE

(RB58 & RB60 ONLY)