52

Body Location

f

1.4 m

Figure 2

Packaging

All resistors are supplied tape packed ready for loading

onto automatic sequencing and insertion machines.

The standard taping method and critical dimensions are

shown in figure 2.

Lead Formed resistors can also be supplied. Standard

options of Lancet, Radial and Goalpost forming are shown

in Lead Form Information section.

Fusing (Constant voltage)

After fusing the final resistance value will be

50 times the

initial value.

Fast Fusible Metal

Film Resistors

WFF Series

© Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK

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

Issue D · 03.06

Welwyn Components

163

Type

WFF1/4

WFF1/2

WFF1

Large ammo pack

5000

2500

1500

Standard Quantities Per Package

*Contact Welwyn for R10 - 1R0 fusing data

Issue E · 01.07

Ordering Procedure

Example: WFF1 at 1.5 ohms and 5% tolerance packed

in a box of 1500 pieces -

W F F 1 – 1 R 5 J I

Type

Value (use IEC62 code)

Tolerance (use IEC62 code)

J

5%

Packing

I

Ammo

WFF1/4

5000/box

Standard

WFF1/2

2500/box

WFF1

1500/box

OBSOLETE