Carbon Film Resistors
FEATURES
• ECONOMICALLY PRICED FOR COMMERCIAL AND INDUSTRIAL
APPLICATIONS
• WIDE SELECTION OF POWER RATINGS AND RESISTANCE VALUES
• EIA COLOR CODING RESISTANT TO INDUSTRIAL SOLVENTS
• AVAILABLE ON TAPE AND REEL FOR AUTOMATIC INSERTION AND
PACK FOR SMALLER PRODUCTION RUNS
RoHS
Compliant
• NEW REDUCED SIZES AT HIGHER POWER RATINGS
• ±5% TOLERANCE STANDARD
includes all homogeneous materials
STANDARD TYPES, RATINGS AND AVAILABILITY
Type
NCF25R
0.25W
250V
NCF25
0.25W
250V
NCF50
0.50W
350V
NCF50R
0.50W
350V
NCF100
1.0W
500V
NCF200
2.0W
750V
Power Rating at 70°C
Max. Working Voltage at 70°C
Max. Overload Voltage at 70°C
500V
500V
700V
700V
1000V
1500V
Resistance Range ±5% (J) Tol. 1.0Ω~10MegΩ 0.5Ω~10MegΩ 1.0Ω~10MegΩ 1.0Ω~10MegΩ 1.0Ω~10MegΩ 1.0Ω~10MegΩ
Resistance Value Availability
E-24
E-24
E-24
E-24
E-24
E-24
PERFORMANCE CHARACTERISTICS
Requirements
Performance
Test Method & Conditions
Operating Temperature Range -55 ~ +155°C (derated above +70°C - see chart)
JIS C5202
MIL-R-10509F
(ppm/°C)
0 ~ -450
0 ~ -700
0 ~ -1000
0 ~ -1300
(µV/V)
0.1
0.25W & Over
NCF25R
24KΩ ~ 470KΩ
2.2megΩ ~ 10megΩ
0.25W & Over
11Ω ~ 91KΩ
1.1megΩ ~ 10megΩ
Temperature
Coefficient
(ppm/°C)
5.2
1- to = 80°C
110KΩ ~ 1megΩ
2.4megΩ ~ 10megΩ
(NCF25R)
4.6.12
JIS C5202 5.9
Method II
Noise (µV/V)
0.3
0.5
1.0
1.0Ω ~ 10KΩ
100KΩ ~ 10megΩ
Short Time Overload
Temperature Cycling
Soldering Effect
Vibration
∆R < ±(1%+0.05Ω)
5.5 Cond. A
4.6.6
4.6.4
4.6.10
4.6.16
∆R < ±(1%+0.05Ω)
∆R < ±5%
∆R < ± (3%+0.05Ω)
7.4-55°C/+85°C
6.4 350°C 3 sec.
6.3 Cond. A
7.9 40°C
90-95%RH 1000hrs
R > 100K
R < 100K
R > 100K
R < 100k
Moisture
Resistance
4.6.11
4.6.13
7.10
70°C 1000hrs
Load Life
∆R < ±(3%+0.05Ω)
* Maximum allowable continuous voltage (Vdc or rms) for all resistors is the
lower of the two values: “MAXIMUM WORKING VOLTAGE” as
specified, or
Power rating (WATTS x Resistance (OHMS)
Derating Curve
70oC
100
80
50
40
20
20
0
40
80
100
180
60
120 140
160
155
AMBIENT TEMPERATURE (oC)
®
NIC COMPONENTS CORP. www.niccomp.com www.lowESR.com www.RFpassives.com www.SMTmagnetics.com
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