NFR01, NFR02, NFR03
Vishay BCcomponents
Fusible Power Metal Film Leaded Resistors
FEATURES
• Metal film technology
• High power (upto 3 W) in small package
• Small standard sizes (0207/0414/0617)
• High stability, reliability and uniformity characteristics
• Defined interruption behaviour (fusing time)
• Various forming styles
• Non flammable
A homogenous film of metal alloy is depositded on a high
grade ceramic body. After a helical groove has been cut in
the resistive layer, tinned electrolytic copper wires are
welded to the end-caps. The resistors are coated with a red
non-flammable lacquer, which provides electrical,
mechanical, and climatic protection.
The encapsulation is resistant to all cleaning solvents in
accordance with “MIL-STD 202E, method 215” and “IEC
60068-2-45“.
• Compatible with lead (Pb)-free and lead containing
soldering processes
• Lead (Pb)-free and RoHS compliant
APPLICATIONS
• Audio
• Video
TECHNICAL SPECIFICATIONS
DESCRIPTION
NFR01
NFR02
Resistance Range (1)
0.47 Ω to 1 kΩ
Resistance Tolerance
± 5 %; E24 series
Temperature Coefficient
NFR03
± 200 ppm/K
Climatic Category
(LCT/UCT/days)
55/155/56
Rated Dissipation P70
1W
Maximum Permissible Voltage:
DC or RMS
2W
350 V
3W
500 V
0.47 Ω to 10 Ω; ≥ 20 x Pn
Fusing Power
10.1 Ω to 1 kΩ; ≥ 16 x Pn
≤ 60 s
Fusing Time
Maximum Resistance Change at P70
for Resistance Range,
ΔR max., after:
Load
± (5 % R + 0.1 Ω)
Climatic Tests
± (3 % R + 0.1 Ω)
Resistance to Soldering Heat
± (1 % R + 0.05 Ω)
Note
(1)
Resistance values below 0.47 Ω with ± 10 % tolerance are available on request
Document Number: 30256
Revision: 06-Dec-07
For technical questions, contact: filmresistors.leaded@vishay.com
www.vishay.com
1
NFR01, NFR02, NFR03
Vishay BCcomponents
Fusible Power Metal Film Leaded
Resistors
12NC INFORMATION FOR HISTORICAL
CODING REFERENCE ONLY
Last Digit of 12NC Indicating Resistance Decade
• The resistors have a 12 digit ordering code starting with
2306
RESISTANCE DECADE
LAST DIGIT
0.47 Ω to 0.91 Ω
7
• The next 5 digits indicate the resistor type and packaging
1 Ω to 9.1 Ω
8
• The last 3 digits indicate the resistance value:
10 Ω to 91 Ω
9
100 Ω to 910 Ω
1
1 kΩ
2
– The first 2 digits indicate the actual resistance value
– The last digit indicates the resistance decade in
accordance with table
12NC Example
NFR01, 1 Ω, ± 5 %, ammopack 1000 pieces is
2306 208 13108
12NC - resistor type and packaging
ORDERING CODE 2306 ... .....
DESCRIPTION
TYPE
BANDOLIER
ON REEL
BANDOLIER IN AMMOPACK
TAPE WIDTH
TOL.
500 UNITS
1000 UNITS
5000 UNITS
5000 UNITS
52.5
±5%
-
208 13...
208 53...
208 23...
NFR01
NFR02
52.5
±5%
-
209 13...
-
209 23...
NFR03
63.0
±5%
210 13...
-
-
-
PART NUMBER AND PRODUCT DESCRIPTION
PART NUMBER (1): NFR0100001008JA100
N
F
R
0
1
0
0
0
0
1
0
0
8
J
A
1
0
0
MODEL/SIZE
SPECIAL CHARACTER
TCR/MATERIAL
VALUE
TOLERANCE
PACKAGING (2)
SPECIAL
NFR0100
NFR0200
NFR0300
0 = neutral
0 = standard
3 digit value
1 digit multiplier
Multiplier:
7 = *10-3
8 = *10-2
9 = *10-1
0 = *100
1 = *101
2 = *102
3 = *103
4 = *104
J=±5%
A1
A5
R5
AC
up to 2 digits
00 = standard
PRODUCT DESCRIPTION: NFR01 5 % A1 1R0
NFR01
5%
A1
1R0
MODEL
TOLERANCE
PACKAGING (2)
RESISTANCE VALUE
NFR01
NFR02
NFR03
±5%
A1
A5
R5
AC
1R0 = 1 Ω
470R = 470 Ω
Notes
(1) The PART NUMBER is shown to facilitate the introduction of the unified part numbering system
(2) Please refer to table PACKAGING, see next page
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For technical questions, contact: filmresistors.leaded@vishay.com
Document Number: 30256
Revision: 06-Dec-07
NFR01, NFR02, NFR03
Fusible Power Metal Film Leaded
Resistors
Vishay BCcomponents
PACKAGING
REEL
BOX
MODEL
PIECES
CODE
PIECES
CODE
NFR01
5000
R5
1000
5000
A1
A5
NFR02
5000
R5
1000
A1
NFR03
-
-
500
AC
DIMENSIONS
L1
ØD
Ød
L2
A
DIMENSIONS - resistor types, mass and relevant physical dimensions
L1 max.
(mm)
L2 max.
(mm)
Dmax.
(mm)
Ød
(mm)
A
(mm)
MASS (g)/
100 pieces
NFR01
6.5
8.5
2.5
0.58 ± 0.05
52.5 ± 1.5
22
NFR02
10
12
4
0.80 ± 0.03
52.5 ± 1.5
50
NFR03
16.7
19.5
5.3
0.80 ± 0.03
63.0 ± 1.5
120
TYPE
MARKING
The nominal resistance and tolerance are marked on the resistor using four colored bands in accordance with IEC 60062 “Color
code for fixed resistors”. There is a fifth black band in order to indicate the type of resistor. Standard values of nominal resistance
are taken from the E24 series for resistors with a tolerance of ± 5 %.
Power Dissipation P
FUNCTIONAL PERFORMANCE
100
0
- 55
0
70
155
Ambient temperature ϑ amb
Derating - Standard Operation
Maximum dissipation (Pmax.) in percentage of rated power as a function of ambient temperature (Tamb)
Document Number: 30256
Revision: 06-Dec-07
For technical questions, contact: filmresistors.leaded@vishay.com
www.vishay.com
3
NFR01, NFR02, NFR03
Fusible Power Metal Film Leaded
Resistors
Vishay BCcomponents
APPLICATION INFORMATION
NFR01
Hot Spot
Solder Spot
160
60
Ø 0.58 mm Cu
Ø 0.58 mm Cu
140
15 mm
50
20 mm
25 mm
120
40
100
ΔT
80
(°C)
ΔT
30
0
(°C)
60
20
40
10
20
0
0
0.2
0.4
0.6
0.8
0
1.0
0
0.2
0.4
P (W)
0.6
0.8
1.0
1.2
P (W)
Hot spot temperature rise (ΔT) as a function
of dissipated power
Temperature rise (ΔT) at the lead end (soldering
point) as a function of dissipated power at various leads
lengths after mounting
Hot Spot
Solder Spot
NFR02
160
100
Ø 0.80 mm Cu
Ø 0.80 mm Cu
15 mm
140
80
120
20 mm
100
60
ΔT
80
(°C)
25 mm
ΔT
(°C)
40
60
40
20
20
0
0
0.5
1.0
1.5
2.0
0
0
0.5
P (W)
Hot spot temperature rise (ΔT) as a function
of dissipated power
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1.0
1.5
2.0
P (W)
Temperature rise (ΔT) at the lead end (soldering
point) as a function of dissipated power at various leads
lengths after mounting
For technical questions, contact: filmresistors.leaded@vishay.com
Document Number: 30256
Revision: 06-Dec-07
NFR01, NFR02, NFR03
Fusible Power Metal Film Leaded
Resistors
Vishay BCcomponents
NFR03
Hot Spot
Solder Spot
180
100
Ø 0.80 mm Cu
Ø 0.80 mm Cu
15 mm
160
20 mm
80
140
120
25 mm
60
100
0
ΔT
(°C) 80
ΔT
(°C)
40
60
40
20
20
0
0
0.5
1.0
1.5
2.0
2.5
0
3.0
0
0.5
1.0
P (W)
1.5
2.0
2.5
3.0
P (W)
Hot spot temperature rise (ΔT) as a function
of dissipated power
Temperature rise (ΔT) at the lead end (soldering
point) as a function of dissipated power at various leads
lengths after mounting
FUSING CHARACTERISTIC
The resistors will fuse without the risk of fire and within an indicated range of overload. Fusing means that the resistive value of
the resistor increases at least 100 times.
Resistance Range
Power Overload
Fusing Time
0.47 Ω - 10 Ω
≥ 20 x maximum dissipation at 70 °C (Pn)
10.1 Ω - 1 kΩ
≥ 16 x maximum dissipation at 70 °C (Pn)
≤ 60 s
TESTS AND REQUIREMENTS
Essentially all tests are carried out in accordance with the schedule of IEC 60115-1, category 55/155/56 (rated temperature range
- 55 to + 155 °C; damp heat, long term, 56 days) and along the lines of IEC 60068-2; “Recommended basic climatic and
mechanical robustness testing procedure for electronic components” and under standard atmosphere conditions according to
IEC 60068-1 subclause 5.3, unless otherwise specified. In some instances deviations from IEC applications were necessary for
our specified method.
PERFORMANCE
IEC
60068-2
TEST
METHOD
TEST
PROCEDURE
4.8
-
Temperature
coefficient
Between
- 55 °C and + 155 °C
± 200 ppm/K
4.25.1
-
Endurance at 70 °C
1000 h;
loaded with Pn or Vmax.;
1.5 h ON; 0.5 h OFF
± (5 % R + 0.1 Ω)
Accidental overload
Overload of 5, 10, 16, 25, 40, 63
and 100 times the rated power,
but the applied voltage shall not
exceed four times the limiting
voltage.
Non-flammable
IEC
60115-1
CLAUSE
4.26
-
REQUIREMENTS
PERMISSIBLE CHANGE (ΔR)
NFR01
Document Number: 30256
Revision: 06-Dec-07
NFR02
For technical questions, contact: filmresistors.leaded@vishay.com
NFR03
www.vishay.com
5
NFR01, NFR02, NFR03
Vishay BCcomponents
Fusible Power Metal Film Leaded
Resistors
PERFORMANCE
IEC
60115-1
CLAUSE
IEC
60068-2
TEST
METHOD
TEST
PROCEDURE
56 days; 40 °C;
90 to 95 % RH
loaded with 0.01 Pn
NFR01
4.24
3 (Ca)
Damp heat,
steady state
4.16
21 (U)
Robustness of
terminations:
4.16.2
21 (Ua1)
Tensile all samples
Load 10 N; 10 s
4.16.3
21 (Ub)
Bending half number
of samples
Load 5 N; 4 x 90°
4.16.4
21 (Uc)
Torsion other half of
samples
3 x 360° in opposite direction
Rapid change of
temperature
30 min at LCT;
30 min at UCT;
LCT = - 55 °C;
UCT = 155 °C;
5 cycles
4.19
14 (Na)
4.23
4.23.2
REQUIREMENTS
PERMISSIBLE CHANGE (ΔR)
NFR02
NFR03
Rins min. 103 MΩ
± (3 % R + 0.1 Ω)
No damage
± (0.5 % R + 0.05 Ω)
± (1 % R + 0.05 Ω) ± (1 % R + 0.05 Ω) ± (2 % R + 0.05 Ω)
Climatic sequence
2 (Ba)
Dry heat
16 h, 155 °C
4.23.3
30 (Db)
Damp heat
(accelerated)
24 h; 25 °C to 55 °C
90 % to 100 % RH; 1 cycle
4.23.4
1 (Aa)
Cold
2 h, - 55 °C
4.23.6
30 (Db)
Damp heat,
(accelerated)
remaining cycles
5 days; 25 °C to 55 °C
90 to 100 % RH
Vibration
Endurance by sweeping;
10 Hz to 500 Hz;
displacement 1.5 mm or
acceleration 10 g;
6 h (3 x 2 h)
No visual damage
± (0.5 % R + 0.05 Ω)
20 (Ta)
Solderability
(after ageing)
16 h at 155 °C;
immersed in flux 600,
leads immersed 2 mm in
solder bath at
(235 ± 5) °C for
(2 ± 0.5) s
Good tinning
(≥ 95% covered);
no visible damage
4.18
20 (Tb)
Resistance to
soldering heat
Solder bath method;
(350 ± 10) °C;
6 mm from body;
for 3 s
± (1 % R + 0.05 Ω)
4.29
45 (XA)
Component solvent
resistance
Isopropyl alcohol;
MIL STD 202E
No visible damage
4.7
-
Voltage proof on
insulation
500 VRMS
during 1 min,
V-block method
No flashover or breakdown
4.6.1.1
-
Insulation resistance
500 VDC
during 1 min,
V-block method
Rins min. 104 MΩ
4.22
4.17
6 (Fc)
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Rins min. 103 MΩ
± (3 % R + 0.1 Ω)
For technical questions, contact: filmresistors.leaded@vishay.com
Document Number: 30256
Revision: 06-Dec-07
Legal Disclaimer Notice
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk and agree
to fully indemnify and hold Vishay and its distributors harmless from and against any and all claims, liabilities, expenses and
damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that Vishay
or its distributor was negligent regarding the design or manufacture of the part. Please contact authorized Vishay personnel to
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No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by
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Document Number: 91000
Revision: 11-Mar-11
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