FCR Datasheet, PDF (1/1 Pages) Welwyn Components Limited – Fusing Surface Mounted Resistors

Fusing Surface
Mounted Resistors
FCR Series
• Fuses under overload conditions
• Flow or re-flow soldering
• Excellent stability
Welwyn Components
Electrical Data
Power Rating @ 70°C
Resistance range
TCR
Resistance tolerance
Ambient temperature range
Values
Max standoff voltage
watts
ohms
ppm/°C
%
°C
FCR ¹/4
0.25
10R - 300R
±500
±5
-55 to 125
E24 preferred
100V
FCR ¹/2
0.5
10R - 100R
±500
±5
Fusing Characteristics
Resistance
Fusing power
Fusing time
ohms
watts
FCR ¹/4
10R - 27R
30R - 300R
3.75
3.00
1 to 60 seconds
FCR ¹/2
10R -100R
4.50
Physical Data
Dimensions (mm)
Type
L
FCR¹/4
3.20
FCR¹/2
±0.15
5.00
±0.15
W
2.60
±0.15
2.50
±0.15
A
0.50
±0.20
0.60
±0.25
T
0.55
±0.15
+0.1529
0.55 -0.05
Power Rating
For resistors operated in ambient temperatures above
70°C. Power rating must be derated in accordance with
the derating curve.
Packaging
Parts supplied Tape and Reel 5000 pieces per 7” reel as
per IEC 286-3.
A
L
Wrap-around terminations
(3 faces)
T
A
W
(%)
100
80
60
40
20
0
- 55
0
70
Ambient temperature
125 (°C)
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.
© Welwyn Components Limited · Bedlington, Northumberland NE22 7AA, UK
Telephone: [phone] · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
22
A subsidiary of
TT electronics plc
Issue C · 04.03