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Resistors
CWR/COR (Fukushima Futaba)

REV: 24.03.2007

Fukushima Futaba
CWR/COR by Fukushima Futaba

CWR (Wire-element) COR (Metaloxyde-element)


Features:

* High temperature resistent crystal ceramic


* Special metaloxyde and wire alloys


* Absolutely non-flammable


* Long term stability through High-vacuum deposition



Technical data:

Wire - Element

Type:
Power:
Ohm values (IEC-series E24)
CWR-2
2 Watt
0,10 - 100 Ohm
CWR-3
3 Watt
0,27 - 100 Ohm
CWR-5
5 Watt
0,10 - 100 Ohm

Metaloxyde - Element

Type:
Power:
Ohm values (IEC-series E24)
COR-2
2 Watt
100 – 22 K Ohm
COR-3
3 Watt
100 – 22 K Ohm
COR-5
5 Watt
100 – 22 K Ohm


Element material:
Ni-Cr-Fe-Mb-P-Cu-X
Tolerance:
± 5% (Standard) / ± 10%
Temperature coefficient:
max. ±350ppm/°C
Rated voltage:
350V(2-3W) / 500V(5W)
Insulation resistance:
20M Ohm

Dimensions

Typen:
L:
W:
H:
d:
COR 2 CWR 2
11,0 ±1,0
7,0 ±1,0
20,5 ±1,5
0,8 ±0,1
COR 3 CWR 3
12,0 ±1,0
8,0 ±1,0
25,0 ±1,5
0,8 ±0,1
COR 5 CWR 5
13,0 ±1,0
9,0 ±1,0
25,5 ±1,5
0,8 ±0,1




Testdata and absolute maximum rates (EIAJ-RC-2655)

Rated load (normal):
+70 °C/1000 h
±5% Deviation allowed
Rated load (humidity):
+40 °C/1000 h/90-95% RH
±5% Deviation allowed
Temporary Overload
6,25 x rated load 5 sec
±5% +0,05 Deviation allowed
Surge voltage:
1W-Type: 600 V for 10 sec
±1% Deviation allowed
 
2-3W-Typen: 700 V for 10 sec
±1% Deviation allowed
 
5W-Type: 1000 V for 10 sec
±1% Deviation allowed
Change of temperature:
5 Cycles -25 ... +85 °C
±1% Deviation allowed
Soldering:
+ 350 °C für 3 sec
±0,5% Deviation allowed