SFR16S/25/25H
Vishay BCcomponents
Standard Metal Film Resistors
FEATURES
•
Low cost
•
Low noise (max. 1.5 µV/V for
R
> 1 MΩ)
•
Small size (SFR16S-0204, SFR25/25H-0207)
A homogeneous film of metal alloy is deposited on a high
grade ceramic body. 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 a colored lacquer (light-blue for
type SFR16S; light-green for type SFR25 and red-brown for
type SFR25H) 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 60068-2045”.
•
Lead (Pb)-free solder contacts
•
Pure tin plating provides compatibility with lead (Pb)-free
and lead containing soldering processes
•
Compatible with “Restriction of the use of Hazardous
Substances” (RoHS) directive 2002/95/EC (issue 2004)
APPLICATIONS
•
General purpose resistors
TECHNICAL SPECIFICATIONS
DESCRIPTION
VALUE
SFR16S
± 5 %; 1
Ω
to 3 MΩ
Resistance range
± 1 %; 4.99
Ω
to 3 MΩ
jumper (0
Ω)
Resistance tolerance
Temperature coefficient:
R
<
4.7
Ω
4.7
Ω ≤
R
≤
100 kΩ
100 kΩ <
R
≤
1 MΩ
R
>
1 MΩ
Absolute maximum dissipation at
T
amb
= 70 °C
Thermal resistance,
R
th
Maximum permissible voltage
Noise:
R
<
68 kΩ
68 kΩ
≤
R
≤
100 kΩ
100 kΩ
≤
R
≤
1 MΩ
R
>
1 MΩ
Basic specifications
Climatic category (IEC 60068)
Stability,
ΔR
max., after:
load:
R
range
climatic tests:
R
≤
1 MΩ
R
>
1 MΩ
Soldering
Short time overload
± (1 %
R
+ 0.05
Ω)
± (1 %
R
+ 0.05
Ω)
± (0.25 %
R
+ 0.05
Ω)
± (0.25 %
R
+ 0.05
Ω)
± (1 %
R
+ 0.05
Ω)
± (1 %
R
+ 0.05
Ω)
± (0.25 %
R
+ 0.05
Ω)
± (0.25 %
R
+ 0.05
Ω)
± (1 %
R
+ 0.05
Ω)
± (2 %
R
+ 0.1
Ω)
± (0.25 %
R
+ 0.05
Ω)
± (1 %
R
+ 0.05
Ω)
± (2 %
R
+ 0.05
Ω)
± (2 %
R
+ 0.05
Ω)
± (2 %
R
+ 0.05
Ω)
max. 0.1 µV/V
max. 0.5 µV/V
max. 1.5 µV/V
max. 1.5 µV/V
max. 0.1 µV/V
max. 0.1 µV/V
max. 0.1 µV/V
max. 1.5 µV/V
IEC 60115-1 and 60115-2
55/155/56
max. 0.1 µV/V
max. 0.1 µV/V
max. 0.1 µV/V
max. 1.5 µV/V
≤
± 250 x 10
-6
/K
≤
± 100 x 10
-6
/K
≤
± 250 x 10
-6
/K
≤
± 250 x 10
-6
/K
0.5 W
170 K/W
200 V
≤
± 100 x 10
-6
/K
≤
± 100 x 10
-6
/K
≤
± 100 x 10
-6
/K
≤
± 250 x 10
-6
/K
0.4 W
200 K/W
250 V
≤
± 100 x 10
-6
/K
≤
± 100 x 10
-6
/K
≤
± 100 x 10
-6
/K
≤
± 250 x 10
-6
/K
0.5 W
150 K/W
350 V
SFR25
SFR25H
± 5 %; 0.22
Ω
to 10 MΩ
± 1 %; 1
Ω
to 10 MΩ
jumper (0
Ω)
± 1 %, E24/E96 series; ± 5 %, E24 series
Note:
•
R
value is measured with probe distance of 24 ± 1 mm using 4-terminal method
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34
For technical questions, contact: ff3dresistors@vishay.com
Document Number: 28722
Revision: 03-Dec-07
SFR16S/25/25H
Standard Metal Film Resistors
Vishay BCcomponents
12NC INFORMATION
•
The resistors have a 12-digit numeric code starting with 23.
•
The subsequent 6 digits for 1 % or 7 digits for 5 % indicate
the resistor type and packaging.
•
The remaining digits indicate the resistance value:
– The first 3 digits for 1 % or 2 digits for 5 % indicate the
resistance value.
– The last digit indicates the resistance decade.
Last Digit of 12NC for ± 5 % Tolerance
RESISTANCE DECADE
0.10 to 0.91
Ω
1 to 9.1
Ω
10 to 91
Ω
100 to 910
Ω
1 to 9.1 kΩ
10 to 91 kΩ
100 to 910 kΩ
1 to 9.1 MΩ
≥
10 MΩ
LAST DIGIT
7
8
9
1
2
3
4
5
6
Last Digit of 12NC for ± 1 % Tolerance
RESISTANCE DECADE
1 to 9.76
Ω
10 to 97.6
Ω
100 to 976
Ω
1 to 9.76 kΩ
10 to 97.6 kΩ
100 to 976 kΩ
1 to 9.76 MΩ
≥
10 MΩ
LAST DIGIT
8
9
1
2
3
4
5
6
12NC Example
The 12NC of a SFR25 resistor, value 5600
Ω
±
5 %, taped on
a bandolier of 5000 units in ammopack is: 2322 181 43562.
12NC
- resistor type and packaging
TYPE
TOL.
RADIAL TAPED
4000 units
−
−
−
..06 184 03...
−
−
−
−
ORDERING CODE 23.. ... .....
BANDOLIER
IN AMMOPACK
STRAIGHT LEADS
1000 units
5000 units
..22 187 73...
..22 187 53...
−
..06 187 3...
−
..06 187 90013
..22 181 53...
..22 181 43...
−
..22 188 2...
..22 181 90018
..22 181 90019
..22 186 16...
..22 186 76...
−
..22 186 3....
BANDOLIER
ON REEL
STRAIGHT LEADS
5000 units
..06 187 23...
..06 187 1....
..22 187 90346
..22 181 63...
..06 181 8....
..06 181 90011
..06 186 63...
..06 186 8....
SFR16S
SFR25
SFR25H
±5%
±1%
jumper
(1)
±5%
±1%
jumper
(2)
±5%
±1%
Notes:
(1)
The jumper has a maximum resistance
R
max
= 30 mΩ at 3 A (SFR16S).
(2)
The jumper has a maximum resistance
R
max
= 10 mΩ at 5 A (SFR25).
PART NUMBER
PART NUMBER: SFR2500001001FA500
S
MODEL/SIZE
SFR16S0
SFR2500
SFR25H0
F
R
2
5
0
0
0
0
1
0
0
1
F
A
5
0
0
SPECIAL
The 2 digits
are used for
all special
parts.
00
= standard
SPECIAL CHARACTER
0
= neutral
Z
= value overflow
(Special)
TCR/MATERIAL
0
= standard
Z
= jumper
VALUE
3 digit value
1 digit multiplier
Multiplier:
7
= *10
-3
2
= *10
2
8
= *10
-2
3
= *10
3
-1
9
= *10
4
= *10
4
0
= *10
0
5
= *10
5
1
Z
= 0000
1
= *10
A5
PACKAGING
(3)
N4
A5
A1
R5
TOLERANCE
F
=±1%
J
=±5%
Z
= jumper
PACKAGING
(3)
N4
A5
A1
R5
PRODUCT DESCRIPTION: SFR25 1 % A5 1K0
SFR25
MODEL/SIZE
SFR16S
SFR25
SFR25H
1%
TOLERANCE
±
1
%
±
5
%
1K0
RESISTANCE VALUE
47K
= 47 KΩ
51R1
= 51.1
Ω
Notes:
(3)
Please refer to table PACKAGING.
• The PART NUMBER is shown to facilitate the introduction of a unified part numbering system for ordering products.
Document Number: 28722
Revision: 03-Dec-07
For technical questions, contact: ff3dresistors@vishay.com
www.vishay.com
35
SFR16S/25/25H
Vishay BCcomponents
Standard Metal Film Resistors
PACKAGING
CODE
N4
A5
A1
R5
PIECES
4000
5000
1000
5000
DESCRIPTION
Bandolier in ammopack radial taped
Bandolier in ammopack straight leads
Bandolier in ammopack straight leads
Bandolier on reel straight leads
MODEL/SIZE
SFR25
SFR16S, SFR25, SFR25H
SFR16S, SFR25, SFR25H
SFR16S, SFR25, SFR25H
DIMENSIONS
L
1
Ød
ØD
L
2
Outline
DIMENSIONS
- resistor types and relevant physical dimensions in millimeters
TYPE
SFR16S
SFR25
SFR25H
Ø
D
MAX.
1.9
2.5
2.5
L
1
MAX.
3.5
6.5
6.5
L
2
MAX.
4.1
7.5
7.5
Ø
d
0.45 ± 0.05
0.58 ± 0.05
0.58 ± 0.05
MASS PER 100 UNITS
TYPE
SFR16S
SFR25
SFR25H
MASS
(g)
10.2
20.5
20.5
OUTLINES
The length of the body (L
1
) is measured by inserting the
leads into holes of two identical gauge plates and moving
these plates parallel to each other until the resistor body is
clamped without deformation (“IEC publication 60294”).
MARKING
The nominal resistance and tolerance are marked on the
resistor using four or five coloured bands in accordance with
IEC publication 60062 “Color codes for fixed resistors”.
FUNCTIONAL PERFORMANCE
PRODUCT CHARACTERIZATION
Standard values of nominal resistance are taken from the E96/E24 series for resistors with a tolerance of ± 1 % or ± 5 %.
The values of the E96/E24 series are in accordance with “IEC publication 60063”.
LIMITING VALUES
TYPE
SFR16S
SFR25
SFR25H
Note:
(1)
LIMITING VOLTAGE
(1)
(V)
200
250
350
LIMITING POWER
(W)
0.5
0.4
0.5
The maximum voltage that may be continuously applied to the resistor element, see “IEC publication 60115-1”.
The maximum permissible hot-spot temperature is 155 °C.
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For technical questions, contact: ff3dresistors@vishay.com
Document Number: 28722
Revision: 03-Dec-07
SFR16S/25/25H
Standard Metal Film Resistors
Vishay BCcomponents
The power that the resistor can dissipate depends on the operating temperature
100
P
max
(%
P
rated
)
50
R
> 1 MΩ
0
- 55
0
50
70
100
155
Derating
10
3
T
amb
(°C)
Maximum dissipation (P
max
) in percentage of
rated power as a function of the
ambient temperature (T
amb
).
P
max
(W)
10
2
10
t
p
/
t
i
= 1000
500
200
100
50
20
10
5
1
2
10
-1
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
t
i
(s)
1
SFR16S
Pulse on a regular basis; maximum permissible peak pulse power (
P
max
) as a function of pulse duration (t
i
)
600
V
max
(V)
500
400
300
200
100
0
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
t
i
(s)
1
SFR16S
Pulse on a regular basis; maximum permissible peak pulse voltage (
V
max
) as a function of pulse duration (t
i
)
Document Number: 28722
Revision: 03-Dec-07
For technical questions, contact: ff3dresistors@vishay.com
www.vishay.com
37
SFR16S/25/25H
Vishay BCcomponents
Standard Metal Film Resistors
10
3
P
max
(W)
10
2
t
p
/
t
i
= 1000
500
200
100
50
20
10
5
1
2
10
10
-1
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
t
i
(s)
1
SFR25
Pulse on a regular basis; maximum permissible peak pulse power (
P
max
) as a function of pulse duration (t
i
)
Pulse Loading Capabilities
600
V
max
(V)
500
400
300
200
100
0
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
t
i
(s)
1
SFR25
Pulse on a regular basis; maximum permissible peak pulse voltage (
V
max
) as a function of pulse duration (t
i
)
10
3
P
max
(W)
t
p
/
t
i
= 1000
10
2
200
100
50
10
20
10
5
1
2
500
10
-1
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
t
i
(s)
1
SFR25H
Pulse on a regular basis; maximum permissible peak pulse power (
P
max
) as a function of pulse duration (t
i
)
www.vishay.com
38
For technical questions, contact: ff3dresistors@vishay.com
Document Number: 28722
Revision: 03-Dec-07
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