SFR16S/25/25H
Vishay BCcomponents
Standard Metal Film Leaded 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 IEC 60068-2-45.
•
Lead (Pb)-free solder contacts
•
Pure tin plating provides compatibility with lead (Pb)-free
and lead containing soldering processes
•
Compliant to RoHS directive 2002/95/EC
APPLICATIONS
•
General purpose resistors
TECHNICAL SPECIFICATIONS
DESCRIPTION
VALUE
SFR16S
± 5 %; 1
Ω
to 3 MΩ
Resistance Range
Resistance Tolerance
Temperature Coefficient:
R
<
4.7
Ω
4.7
Ω ≤
R
≤
100 kΩ
100 kΩ <
R
≤
1 MΩ
R
>
1 MΩ
Rated Dissipation,
P
70
Thermal Resistance,
R
th
Maximum Permissible Voltage, (U
max.
AC/DC)
Noise:
R
<
68 kΩ
68 kΩ
≤
R
≤
100 kΩ
100 kΩ
≤
R
≤
1 MΩ
R
>
1 MΩ
Basic Specifications
Climatic Category (IEC 60068-1)
Stability,
ΔR
max., After:
Load (1000 h,
P
70
):
R
Range
Long Term Damp Heat Test (56 Days):
R
≤
1 MΩ
R
>
1 MΩ
Soldering (10 s, 260 °C)
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
55/155/56
max. 0.1 µV/V
max. 0.1 µV/V
max. 0.1 µV/V
max. 1.5 µV/V
≤
± 250 ppm/K
≤
± 100 ppm/K
≤
± 250 ppm/K
≤
± 250 ppm/K
0.5 W
170 K/W
200 V
≤
± 100 ppm/K
≤
± 100 ppm/K
≤
± 100 ppm/K
≤
± 250 ppm/K
0.4 W
200 K/W
250 V
≤
± 100 ppm/K
≤
± 100 ppm/K
≤
± 100 ppm/K
≤
± 250 ppm/K
0.5 W
150 K/W
350 V
± 1 %; 4.99
Ω
to 3 MΩ
Jumper (0
Ω)
SFR25
SFR25H
± 1 %; 1
Ω
to 10 MΩ
Jumper (0
Ω)
± 1 %, E24/E96 series; ± 5 %, E24 series
± 5 %; 0.22
Ω
to 10 MΩ
Note
•
R
value is measured with probe distance of 24 mm ± 1 mm using 4-terminal method
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For technical questions, contact:
filmresistorsleaded@vishay.com
Document Number: 28722
Revision: 06-Aug-10
SFR16S/25/25H
Standard Metal Film Leaded Resistors
Vishay BCcomponents
PART NUMBER AND PRODUCT DESCRIPTION
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
VARIANT
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
-2
8
= *10
3
= *10
3
9
= *10
-1
4
= *10
4
0
0
= *10
5
= *10
5
1
Z
= 0000
1
= *10
TOLERANCE
F
=±1%
J
=±5%
Z
= Jumper
PACKAGING
(1)
N4
A5
A1
R5
PRODUCT DESCRIPTION: SFR25 1 % A5 1K0
SFR25
MODEL/SIZE
SFR16S
SFR25
SFR25H
1%
TOLERANCE
±
1
%
±
5
%
A5
PACKAGING
(1)
N4
A5
A1
R5
1K0
RESISTANCE VALUE
47K
= 47 kΩ
51R1
= 51.1
Ω
Notes
(1)
Please refer to table PACKAGING
• The jumper has a maximum resistance
R
max.
= 30 mΩ at 3 A (SFR16S)
• The jumper has a maximum resistance
R
max.
= 10 mΩ at 5 A (SFR25)
• The PART NUMBER is shown to facilitate the introduction of a unified part numbering system for ordering products
PACKAGING
AMMO PACK
MODEL
TAPING
PIECES
5000
SFR16S, SFR25, SFR25H
SFR25, SFR25H
Axial, 52 mm
1000
Radial
4000
A1
N4
-
-
CODE
A5
5000
R5
PIECES
CODE
REEL
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
Document Number: 28722
Revision: 06-Aug-10
For technical questions, contact:
filmresistorsleaded@vishay.com
www.vishay.com
35
SFR16S/25/25H
Vishay BCcomponents
Standard Metal Film Leaded Resistors
OUTLINES
MASS
(mg)
102
205
205
MASS PER UNIT
TYPE
SFR16S
SFR25
SFR25H
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 60294).
MARKING
The nominal resistance and tolerance are marked on the
resistor using four or five colored bands in accordance with
IEC 60062, marking codes for resistors and capacitors.
PRODUCTS WITH RADIAL LEADS (SFR25, SFR25H)
P
2
P
H
1
H
H
0
L
L
1
W
0
W
F
P
0
P
1
D
0
DIMENSIONS - RADIAL TAPING
SYMBOL
P
P
0
P
1
P
2
F
W
W
0
H
1
H
0
H
D
0
L
L
1
PARAMETER
Pitch of components
Feed-hole pitch
Feed-hole centre to lead at topside at the tape
Feed-hole center to body center
Lead-to-lead distance
Tape width
Minimum hold down tape width
Component height
Lead wire clinch height
Height of component from tape center
Feed-hole diameter
Maximum length of snipped lead
Minimum lead wire (tape portion) shortest lead
VALUE
12.7
12.7
3.85
6.35
4.8
18.0
5.5
29
16.5
19.5
4.0
11.0
2.5
TOLERANCE
± 1.0
± 0.2
± 0.5
± 1.0
+ 0.7/- 0
± 0.5
-
Max.
± 0.5
±1
± 0.2
-
-
UNIT
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
Note
• Please refer document number 28721 “Packaging” for more detail
www.vishay.com
36
For technical questions, contact:
filmresistorsleaded@vishay.com
Document Number: 28722
Revision: 06-Aug-10
SFR16S/25/25H
Standard Metal Film Leaded Resistors
Vishay BCcomponents
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 60063.
The power that the resistor can dissipate depends on the operating temperature
100
P
max.
(%
P
rated
)
50
0
- 55
0
50
70
100
155
T
amb
(°C)
Maximum dissipation (P
max.
) in percentage of
rated power as a function of the
ambient temperature (T
amb
).
Derating
10
3
P
max.
(W)
10
2
t
p
/
t
i
= 1000
500
200
100
50
20
10
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
)
Document Number: 28722
Revision: 06-Aug-10
For technical questions, contact:
filmresistorsleaded@vishay.com
www.vishay.com
37
SFR16S/25/25H
Vishay BCcomponents
Standard Metal Film Leaded Resistors
600
U
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 (
U
max.
) as a function of pulse duration (t
i
)
10
3
P
max.
(W)
10
2
t
p
/
t
i
= 1000
500
200
100
50
20
10
10
5
1
2
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
U
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 (
U
max.
) as a function of pulse duration (t
i
)
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38
For technical questions, contact:
filmresistorsleaded@vishay.com
Document Number: 28722
Revision: 06-Aug-10
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