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 BULK
PACK FOR SMALLER PRODUCTION RUNS
• NEW REDUCED SIZES AT HIGHER POWER RATINGS
• ±5% TOLERANCE STANDARD
STANDARD TYPES, RATINGS AND AVAILABILITY
Type
Power Rating at 70
o
C
Max. Working Voltage at 70 C*
Max. Overload Voltage at 70
o
C
Resistance Range
o
NCF Series
LEADED
NCF25R
0.25W
250V
500V
NCF25
0.25W
250V
500V
NCF50
0.50W
350V
700V
NCF50R
0.50W
350V
700V
NCF100
1.0W
500V
1000V
NCF200
2.0W
750V
1500V
±5% (J) Tol. 1.0
Ω
~10meg
Ω
0.5
Ω
~10meg
Ω
1.0
Ω
~10meg
Ω
1.0
Ω
~10meg
Ω
1.0
Ω
~10meg
Ω
1.0
Ω
~10meg
Ω
E-24
E-24
E-24
E-24
E-24
E-24
Resistance Value Availability
PERFORMANCE CHARACTERISTICS
Requirements
Performance
Test Method & Conditions
JIS C5202
MIL-R-10509F
Operating Temperature Range -55 ~ +155°C (Derated at +70°C - see chart)
(ppm/
o
C)
0.25W
0.50W and Over
Temperature
0 ~ -450
≤
100K
Ω
≤
22K
Ω
Coefficient
0 ~ -700
110K
Ω
~ 1meg
Ω
24KΩ ~ 470KΩ
o
(ppm/ C)
0 ~ -1000
1.1megΩ ~ 2.2megΩ
510KΩ ~ 2.2megΩ
0 ~ -1300
2.4megΩ ~ 10megΩ
2.2megΩ ~ 10megΩ
(µV/V)
(NCF25R)
0.25 W & Over
0.1
0.5
Ω
~ 10KΩ
Noise (
µ
V/V)
0.3
1.0
Ω
~ 10KΩ
11KΩ ~ 91KΩ
0.5
11KΩ ~ 91KΩ
100KΩ ~ 1megΩ
1.0
100KΩ ~ 10megΩ
1.1MΩ ~ 10megΩ
Short Time Overload
∆R
<
+
(1%+0.05
Ω)
Temperature Cycling
∆R
<
+
(0.5%+0.05
Ω)
Soldering Effect
∆R
<
+
(1%+0.05
Ω)
Vibration
∆R
<
+
(0.5%+0.05
Ω)
R>100K
∆R ≤
+ 5%
Moisture
Resistance
R≤100K
∆R ≤
+ (3%+0.05
Ω)
R>100K
∆R ≤
+ 3%
Load Life
R≤100K
∆R ≤
+ (3%+0.05
Ω)
5.2
1-to=80
o
C
4.6.12
JIS C5202 5.9
Method II
5.5. Cond. A
7.4-55/85°C
6.4. 350
o
C 3sec
6.3. Cond. A
7.9. 40°C
90-95%RH.1000hrs
7.10
70°C 1000hrs
4.6.6
4.6.4
4.6.10
4.6.16
4.6.11
4.6.13
* 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
100
80
PERCENTAGE
RATED LOAD
50
40
20
20
120 140
↑
160 180
155
70
o
C
0
40
60
80
100
®
AMBIENT TEMPERATURE (
o
C)
212
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Carbon Film Resistors
DIMENSIONS (mm)
Type
NCF25R
NCF25
NCF50
NCF50R
NCF100
NCF200
D∅
1.8 ± 0.2
2.5 ± 0.5
2.7 ± 0.5
2.3 ± 0.5
4.5 ± 0.5
5.5 ± 0.5
L
3.3 ± 0.4
6.3 ± 0.5
8.5 ± 0.5
6.5 ± 0.5
11.0 ± 0.5
15.0 ± 0.5
d∅ ± 0.05
0.45
0.56
0.56
0.56
0.80
0.80
25 Min.
L
NCF Series
d∅
LEADED
¦¦
25 Min.
D∅
¦
¦¦
¦¦
¦
¦
¦
SIGNIFICANT VALUES OF NOMINAL
RESISTANCE E-24 5% (J)
1.0
1.1
2.2
2.4
2.7
3.0
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
9.1
COLOR CODING
Color
Black
Brown
Red
Orange
Yellow
Green
Blue
Violet
Grey
White
Gold
Silver
Significant Figure
1st
0
1
2
3
4
5
6
7
8
9
-
-
2nd
0
1
2
3
4
5
6
7
8
9
-
-
3rd
0
1
2
3
4
5
6
7
8
9
-
-
Multiplier
1
10
100
1,000
10,000
100,000
1,000,000
10,000,000
-
-
0.1
0.01
Tolerance
-
F (±1%)
G (±2%)
-
-
D (±0.5%)
C (±0.25%)
B (±0.1%)
-
-
J (±5%)
K (±10%)
1.2
1.3
1.5
1.6
1.8
2.0
PART NUMBERING SYSTEM
NCF
25
J
103
TR
TR = Tape and Reel
B = Bulk
Resistance Code: First 2 digits are significant,
3rd digit is multiplier, “R” indicates decimal on
values below 10 OHMS
Tolerance Code:
G =
±2%
(Opt.)
J =
±5%
STD.
Power Rating (Wattage Code)
25 = .25W
50 = .50W
25R = .25W
50R = .50W
100 = 1 WATT
200 = 2WATT
¦
¦
¦
¦
Series
CARBON FILM
PACKAGING
Tape and Reel - 5000 Pieces
Bulk - 1000 Pieces (5 bags of 200 per box)
Zero-Ohm Resistors
FEATURES
• STANDARD 1/8 WATT AND 1/4 WATT SIZES
• FOR JUMPERS OR CROSSOVERS ON PCB’S
• TAPE AND REEL FOR AUTOMATIC INSERTION
• SINGLE BLACK BAND INDICATES ZERO RESISTANCE
SPECIFICATIONS
OPERATING TEMPERATURE RANGE: –55
O
C to +155
O
C
RESISTANCE: 0.01 OHM or less
CURRENT RATING: 25 AMPS (–55
O
C to +25
O
C)
DERATED GRAPH BELOW
ZERO OHM RESISTORS CURRENT RATING OVER
TEMPERATURE NZO25R & NZO25 PARTS.
25AMP
20AMP
15AMP
10AMP
5AMP
0
-55
O
C -25
O
C
®
NZO Series
¦¦
¦
25 Min.
¦¦
L
d∅
¦¦
25 Min.
¦
¦
D∅
¦
DIMENSIONS (mm)
Type
NZO25R
NZO25
D∅
1.8 ± 0.1
2.3 ± 0.2
L
3.2 ± 0.2
6.5 ± 0.5
d∅ ± 0.05
0.5
0.6
Part Numbering System
NZO
25
TR
TR = Tape and Reel
B = Bulk
Size:
25R = 1/8W Size
25 = 1/4W Size
15
15
10
0
O
C +25
O
C +50
O
C +75
O
C + 0
O
C + 2
O
C + 5
O
C
Series
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213
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