Carbon Film Resistors
FEATURES
NCF Series
• 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
includes all homogeneous materials
• ±5% TOLERANCE STANDARD
RoHS
Compliant
NCF200
2.0W
750V
1500V
E-24
*See Part Number System for Details
NCF100
1.0W
500V
1000V
E-24
STANDARD TYPES, RATINGS AND AVAILABILITY
Type
Power Rating at 70
o
C
Max. Working Voltage at 70
o
C*
Max. Overload Voltage at 70 C
o
NCF25R
0.25W
250V
500V
E-24
NCF25
0.25W
250V
500V
E-24
NCF50
0.50W
350V
700V
E-24
NCF50R
0.50W
350V
700V
E-24
Resistance Range
±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
Resistance Value Availability
PERFORMANCE CHARACTERISTICS
Requirements
Performance
Test Method & Conditions
JIS C5202
5.2
1-to=80
o
C
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
(ppm/
o
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)
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
Derating Curve
100
PERCENTAGE
RATED LOAD
80
50
40
20
0
20
40
60
80
* 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)
70
o
C
100 120 140
↑
160 180
155
®
AMBIENT TEMPERATURE (
o
C)
32
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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
25 Min.
d∅
NCF Series
D∅
SIGNIFICANT VALUES OF NOMINAL
RESISTANCE E-24 5% (J)
1.0
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
1.1
1.2
1.3
1.5
1.6
1.8
2.0
COLOR CODING
Color
Black
Brown
Red
Orange
Yellow
Significant Figure
1st
0
1
2
3
2nd
0
1
2
3
3rd
0
1
2
3
4
5
Multiplier
1
10
100
1,000
10,000
Tolerance
-
F (±1%)
G (±2%)
-
4
4
5
-
Green
Blue
Violet
Grey
5
6
100,000
D (±0.5%)
6
6
7
1,000,000
10,000,000
C (±0.25%)
B (±0.1%)
PART NUMBER SYSTEM
NCF 25 J 103 TR F
RoHS compliant parts
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
Series 100 = 1 WATT
200 = 2WATT
7
8
7
8
8
9
-
-
-
0.1
-
White
9
-
-
9
-
-
-
J (±5%)
K (±10%)
Gold
Silver
-
0.01
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
NZO Series
d∅
25 Min.
L
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 NUMBER SYSTEM
NZO 25 TR F
RoHS compliant
TR = Tape and Reel
B = Bulk
Size:
25R = 1/8W Size
25 = 1/4W Size
Series
0
®
-55
O
C
-25
O
C
O
0
O
C +25
O
C +50
O
C +75
O
C +100
O
C+125
O
C +155 C
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33
Resistor Taping Specifications & Mechanical Characteristics
TAPE
TAPE DIMENSIONS (mm)
Power
Rating
(Wattage)
B
A
52 ± 1.0
52 ± 1.0
52 ± 1.0
52.4 ± 1.5
63.5 ± 1.5
52.4 ± 1.5
63.5 ± 1.5
52.0 ± 1.0
B
5 ± 0.5
5 ± 0.5
5 ± 0.5
5 ± 0.6
5 ± 0.6
10 ± 1.0
10 ± 0.5
C
6 ± 0.3
6 ± 0.3
6 ± 0.3
6 ± 0.3
6 ± 0.3
6.0 ± 0.3
D max.
0.6
0.6
0.6
0.6
0.6
0.6
E max.
1.2
1.2
1.2
1.2
1.2
1.2
1/8W
1/4W
1/2W
1W
E
D
2W
3W
A
C
REEL DIMENSIONS (mm)
Power Rating A max.
B
C ref. D max. E max F ± 1.0
1/8W ~ 2W
40 ~ 100
15
60
16
312
53
3W
70 ± 10
14.5
REEL
A
D
Label
C
Recess Depth
E
Hub Recess I.D.
F
Arbor Hole Dia.
B
MECHANICAL CHARACTERISTICS
LEAD PULL TEST
The lead wire shall withstand steady pull of the following weight axially to the lead wire for the minimum period of 10 seconds
without any breakage or damage:
Nom. Lead Diameter
Steady Weight
0.4
∅
mm
1.0Kgs.
0.5
∅
mm
1.0Kgs.
0.6
∅
mm
1.5Kgs.
0.7
∅
mm
2.0Kgs.
0.8
∅
mm & over
2.5Kgs.
LEAD BEND TEST
The lead wire shall withstand minimum 4 bends of 90
o
rotation without any breakage or damage, when the resistor is placed in a
vertical position and is applied with a weight of 0.5Kgs for 0.4 - 0.5omm or 1.1Kgs for 0.6omm and over lead wire.
SOLDERABILITY
The lead wire is immersed into 10% methanol or isopropyl alcohol of rosin by weight for a period of 2
±
0.5 seconds. Then, it shall
be dipped into molten solder melted at 230
±
5
o
C for a period of 5
±
1 seconds approximately 1.5mm from the body of the resistor.
A new adhering coating of solder shall cover minimum 95% of the surface being dipped into solder.
RESISTANCE TO CLEANING SOLVENTS
Color coating or marking shall remain legible after cleaning by solvents such as isopropyl alcohol, trichloroethylene, freon
®
TF/TAX, xyliene etc., in form of liquid or gas.
®
40
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