leaded resIsTOrs
Carbon Film Resistors
Flame-Proof Type
Normal & Miniature Style [ FCR Series ]
FeaTUres
Power Rating
Resistance Tolerance
T.C.R.
Flameproof Multi-layer Coating Meets
Flameproof Feature Meets Overload Test
1/4W, 1/2W, 1W, 2W, 3W
±2%,±5%
see Table 1
UL-94V-0
UL-1412
INTrOdUCTION
The FCR Series Carbon Film Flame Proof Resistors
are manufactured by coating a homogeneous film
of pure carbon on high grade ceramic rods. After
a helical groove has been cut in the resistive layer,
tinned connecting leads of electrolytic copper are
welded to the end-caps. The resistors are coated
with layers of gray color lacquer.
deraTING CUrVe
For resistors operated in ambient temperatures above 70ºC, power rating must be derated in
accordance with the curve below.
Rated Load (%)
100
80
60
40
20
20
40
60
80
100
120
140
160
180
70°C
Ambient Temperature (°C)
TaBle1 TeMPeraTUre COeFFICIeNT
StyLe
FCR100, FCR200, FCR2WS, FCR3WS
FCR-25, FCR-50,
FCR50S, FCR1WS
Max. Value of Temp. Coefficient ppm/°C
under 100KΩ
±350
+350
-500
100KΩ ~ 1MΩ
-500
-700
1MΩ ~ 10MΩ
-1500
-1500
dIMeNsIONs
sTYle
Normal
ød
H
L
øD
FCR-25
FCR-50
FCR100
FCR200
Miniature
FCR50S
FCR1WS
FCR2WS
FCR3WS
dIMeNsION
l
6.3±0.5
9.0±0.5
11.5±1.0
15.5±1.0
ød
2.4±0.2
3.3±0.3
4.5±0.5
5.0±0.5
H
28±2.0
26±2.0
35±2.0
33±2.0
ød
Unit : mm
0.55±0.05
0.55±0.05
0.8±0.05
0.8±0.05
The th is black color band for FCR series
31
Note :
eleCTrICal CHaraCTerIsTICs
sTYle
FCr-25
FCr50s
FCr-50
FCr1Ws
FCr100
FCr2Ws
FCr200
FCr3Ws
Power Rating at 70 ºC
Maximum Working Voltage
Maximum Overload Voltage
Dielectric Withstanding Voltage
Resistance Range
Operating Temp. Range
Temperature Coefficient
1/4W
250V
500V
400V
1/2W
300V
600V
350V
700V
500V
1W
400V
800V
600V
500V
1000V
750V
2W
3W
1Ω ~ 10MΩ & 0Ω for E24 series value
- 55ºC to + 155ºC
see Table 1
* Below or over this resistance range on request.
eNVIrONMeNTal CHaraCTerIsTICs
PerFOrMaNCe TesT
Short Time Overload
Dielectric Withstanding Voltage
Temperature Coefficient
Insulation Resistance
Solderability
Resistance to Solvent
Terminal Strength
Pulse Overload
Load Life in Humidity
Load Life
Temperature Cycling
Resistance to Soldering Heat
Overload Flame Retardant
TesT MeTHOd
JIS-C-5202 5.5
JIS-C-5202 5.7
JIS-C-5202 5.2
JIS-C-5202 5.6
JIS-C-5202 6.5
JIS-C-5202 6.9
JIS-C-5202 6.1
JIS-C-5202 5.8
JIS-C-5202 7.9
JIS-C-5202 7.10
JIS-C-5202 7.4
JIS-C-5202 6.4
JIS-C-5202 7.12
2.5 Times RCWV for 5 Seconds
in V-Block for 60 Seconds
- 55ºC to +155ºC
in V-Block
260ºC ±5ºC for 5 ±0.5 Seconds
IPA for 1 Min. with Ultrasonic
Direct load for 10 Sec. In the Direction of the Terminal Leads
4 Times RCWV 10000 Cycles (1 Sec. On, 25 Sec. off)
40±2ºC , 90~95% RH at RCWV for 1,000 Hrs. (1.5 Hrs. on , 0.5 Hrs. off)
70ºC at RCWV for 1,000 Hrs. (1.5 Hrs. on 0.5 Hrs. off)
-55ºCgRoom Temp.g+155ºCgRoom Temp. for 5 Cycles
350ºC ±10ºC for 3±0.5 Seconds
4 Times RCWV for 1 Minute
aPPraIse
±(0.75%+0.05Ω)
by Type
by Type
>1000MΩ
95% Min. Coverage
No deterioration of
Coatings and Markings
≧2.5kg
(24.5N)
±1.0%+0.05Ω
±3%+0.05Ω
±3%+0.05Ω
±1%+0.05Ω
±1%+0.05Ω
No evidence of
flaming or arcing
* Rated Continuous Working Voltage (RCW V)=
Power Rating x Resistance Value
