S Series
High Precision Foil Resistor with TCR of ± 2.0 ppm/°C,
Tolerance of ± 0.005 % and Load Life Stability of ± 0.005 %
FEATURES
Temperature coefficient of resistance (TCR):
- 55 °C to + 125 °C, 25 °C ref.
- S10XC / D series: ± 2 ppm/°C typical (see table
1)
- S10XK series: ± 1 ppm/°C typical (see table 1)
Power rating: to 1 W at + 125 °C
Resistance tolerance: to ± 0.005 % (50 ppm)
Load life stability: ± 0.005 % at 70 °C, 2000 h at rated power
Resistance range: 0.5
to 1 M (for higher or lower
values, please contact Application Engineering)
Vishay Foil resistors are not restricted to standard values;
specific “as required” values can be supplied at no extra
cost or delivery (e.g. 1K2345 vs. 1K)
Electrostatic discharge (ESD) at least to 25 kV
Non inductive, non capacitive design
Rise time: 1 ns effectively no ringing
Current noise: 0.010 µV
RMS
/V of applied voltage (< - 40 dB)
Thermal EMF: 0.05 µV/°C
Voltage coefficient: < 0.1 ppm/V
Low inductance: < 0.08 µH
Non hot-spot design
Terminal finishes available: lead (Pb)-free, tin/lead alloy
Matched sets are available on request
(TCR tracking: to 0.5 ppm/°C)
Prototype quantities available in just 5 working days
or sooner. For more information, please contact
foil@vpgsensors.com
For better TCR performances please review the
datasheets for the
Z Series
and
Z203
INTRODUCTION
Bulk Metal
®
Foil (BMF) technology outperforms all other
resistor technologies available today for applications that
require high precision and high stability.
This technology has been pioneered and developed by
Vishay Foil Resistors (VFR), and products based on this
technology are the most suitable for a wide range of
applications. BMF technology allows the production of
customer-oriented products, designed to satisfy specific
challenging technical requirements.
The S series of BMF resistors offers low TCR, excellent load
life stability, tight tolerance, fast response time, low current
noise, low thermal EMF and low voltage coefficient, all in one
resistor.
The S series is virtually insensitive to destabillizing factors.
The resistor element is a solid alloy that displays the
desirable bulk properties of its parent material, thus it is
inherently stable and noise free. The standard design of
these resistors provides a unique combination of
characteristics found in no other single resistor.
VFR's application engineering department is available to
advise and to make recommendations. For non-standard
technical requirements and special applications, please
contact
foil@vpgsensors.com.
FIGURE 1 - TYPICAL RESISTANCE CHANGE
VERSUS TEMPERATURE CURVES AND
CHORD SLOPES (TCR) OF TWO ALLOY
TYPES IN MILITARY RANGE
+ 150
+ 100
TABLE 1 - RESISTANCE VERSUS TCR
(- 55 °C to + 125 °C, + 25 °C ref.)
RESISTOR
(1) (2)
S10X(C) / (D)
S10X(K)
S10X(C) / (D)
S10X(K)
S10X(C) / (D)
S10X(K)
(1)
(2)
RESISTANCE
VALUE ()
80 to < 1M
80 to < 600K
50 to < 80
0.5 to < 50
TYPICAL TCR AND
MAX SPREAD
(ppm/°C)
± 2 ± 2.5
± 1 ± 2.5
± 2 ± 3.5
± 1 ± 3.5
± 2 ± 4.5
± 1 ± 4.5
Δ
R
+ 50
–1 ppm/
°
C
+1 ppm/
°
C
0
R
(ppm)
- 50
- 100
- 150
- 200
- 50
- 55
+2 ppm/
°
C
–2 ppm/
°
C
- 25
0
+ 25
+ 50
+ 75
+ 100
+ 125
C Alloy
2 ppm/
°
C
K Alloy
1 ppm/
°
C
Temperature (°C)
X
refers to S Series model number - see Table 2
(C) and (D) refer to C Foil Alloy Types; (K) refers to the K Foil Alloy type - see Figure 1
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63001
Revision: 02-Mar-15
For any questions, contact
foil@vpgsensors.com
www.vishayfoilresistors.com
1
S Series
FIGURE 2 - STANDARD IMPRINTING AND DIMENSIONS
Front View
L
VFR
XXXX
S102C
Date Code
01
10
Year Week
ST
1)
W
Rear
View
Optional Customer Part Number
Print specification, etc. if required
XXXXXX
100R01
0.01 %
Resistance
Value Code
Tolerance
H
Model Number
LS
SW
Lead Material #22 AWG
Round Solder Coated Copper
(Pb - free coating available)
LL
Note
1. Standoffs provided to allow proper flushing of flux, debris, and contaminates from under resistor after all solder operations.
2. The standoffs shall be so located as to give a lead clearance of 0.010" minimum between the resistor body and the printed circuit board
when the standoffs are seated on the printed circuit board.
TABLE 2 - MODEL SELECTION
MODEL
NUMBER
S102C
(S102J)
(2)
S102K
(S102L)
(2)
S104D
(S104F)
(1)
S104K
S105D
(S105F)
(1)
S105K
AMBIENT
RESISTANCE MAXIMUM POWER RATING AVERAGE
RANGE
WORKING
WEIGHT
()
VOLTAGE
IN GRAMS
at
at
+ 70 °C + 125 °C
1 to 150K
300
1 to 100K
0.6 W
0.3 W
up to 100K
0.4 W
0.2 W
over 100K
1.0 W
0.5 W
up to 200K
0.6 W
0.3 W
over 200K
1.5 W 0.75 W
up to 300K
0.8 W
0.4 W
over 300K
2.0 W
1.0 W
up to 400K
1.0 W
0.5 W
over 400K
DIMENSIONS
INCHES
W: 0.105 ± 0.010
L: 0.300 ± 0.010
H: 0.326 ± 0.010
ST: 0.010 min.
SW: 0.040 ± 0.005
LL: 1.000 ± 0.125
LS: 0.150 ± 0.005
W: 0.160 max.
L: 0.575 max.
H: 0.413 max.
ST: 0.035 ± 0.005
SW: 0.050 ± 0.005
LL: 1.000 ± 0.125
LS: 0.400 ± 0.020
W: 0.160 max.
L: 0.820 max.
H: 0.413 max.
ST: 0.035 ± 0.005
SW: 0.050 ± 0.005
LL: 1.000 ± 0.125
LS: 0.650 ± 0.020
W: 0.260 max.
L: 1.200 max.
H: 0.413 max.
ST: 0.035 ± 0.005
SW: 0.050 ± 0.005
LL: 1.000 ± 0.125
LS: 0.900 ± 0.020
mm
F
(1)
(INCHES)
TIGHTEST
TOLERANCE
VS. LOWEST
RESISTANCE
VALUE
0.6
1 to 500K
350
1 to 300K
1.4
1 to 750K
350
1 to 500K
1.9
S106D
0.5 to 1M
500
4.0
S106K
0.5 to 600K
2.67 ± 0.25
7.62 ± 0.25
8.28 ± 0.25
0.254 min.
1.02 ± 0.13
25.4 ± 3.18
3.81 ± 0.13
4.06 max.
(0.138)
14.61 max.
(0.565)
(0.413)
10.49 max.
0.889 ± 0.13
1.27 ± 0.13
25.4 ± 3.18
10.16 ± 0.51
4.06 max.
(0.138)
20.83 max.
(0.890)
(0.413)
10.49 max.
0.889 ± 0.13
1.27 ± 0.13
25.4 ± 3.18
16.51 ± 0.51 (0.7 ± 0.05)
6.60 max.
30.48 max.
10.49 max.
0.889 ± 0.13
1.27 ± 0.13
25.4 ± 3.18
22.86 ± 0.51
0.005 %/50
0.01 %/25
0.02 %/12
0.05 %/5
0.1 %/2
0.50 %/1
1 %/0.5
Notes
(1)
S104F and S105F have different package dimensions (see the third column of dimensions). All other specifications are the same.
(2)
0.200" (5.08 mm) lead spacing available - specify S102J for S102C, and S102L for S102K.
www.vishayfoilresistors.com
2
For any questions, contact
foil@vpgsensors.com
Document Number: 63001
Revision: 02-Mar-15
S Series
FIGURE 3 - POWER DERATING CURVE
Percent
of Rated
Power
at + 125 °C
200
%
175
%
150
%
125
%
100
%
75
%
50
%
25
%
0
%
- 75 - 50 - 25
0
25
50
75
100 125 150 175 200
- 55 °C
+ 70 °C
FIGURE 4 - TRIMMING TO VALUES
(conceptual illustration)
Double Rated Power
Interloop Capacitance
Reduction in Series
Current Path
Before Trimming
Current Path
After Trimming
Trimming Process
Removes this Material
from Shorting Strip Area
Changing Current Path
and Increasing
Resistance
Rated Power
Mutual Inductance
Reduction due
to Change in
Current Direction
Ambient Temperature (°C)
Note:
Foil shown in black, etched spaces in white
TABLE 3 - ENVIRONMENTAL PERFORMANCE COMPARISON
MIL-PRF-55182
CHAR J
Test Group I
Thermal shock, 5 x (- 65 °C to + 150 °C)
Short time overload, 6.25 x rated power
Test Group II
Resistance temperature characteristics
(1)
Low temperature storage (24 h at - 65 °C)
Low temperature operation
(45 min, rated power at - 65 °C)
Terminal strength
Test Group III
Dielectric Withstanding Voltage (DWV)
Resistance to solder heat
Moisture resistance
Test Group IV
Shock
Vibration
Test Group V
Life test at 0.3 W/+ 125 °C
2000 h
10 000 h
Test Group Va
Life test at 0.6 W (2 x rated power)/+ 70 °C, 2000 h
Test Group VI
High temperature exposure (2000 h at + 175 °C)
Test Group VII
Voltage coefficient
(1)
S-SERIES
MAXIMUM
R
S-SERIES
TYPICAL
R
± 0.2 %
± 0.2 %
± 0.01 % (100 ppm)
± 0.01 % (100 ppm)
± 0.002 % (20 ppm)
± 0.003 % (30 ppm)
± 25 ppm/°C
± 0.15 %
± 0.15 %
± 0.2 %
± 6.5 ppm/°C
± 0.01 % (100 ppm)
± 0.01 % (100 ppm)
± 0.01 % (100 ppm)
± 2.0 ppm/°C
± 0.002 % (20 ppm)
± 0.002 % (20 ppm)
± 0.002 % (20 ppm)
± 0.15 %
± 0.1 %
± 0.4 %
± 0.01 % (100 ppm)
± 0.01 % (100 ppm)
± 0.05 % (500 ppm)
± 0.002 % (20 ppm)
± 0.005 % (50 ppm)
± 0.01 % (100 ppm)
± 0.2 %
± 0.2 %
± 0.01 % (100 ppm)
± 0.01 % (100 ppm)
± 0.002 % (20 ppm)
± 0.002 % (20 ppm)
± 0.5 %
± 2.0 %
± 0.015 % (150 ppm)
± 0.05 % (500 ppm)
± 0.01 % (100 ppm)
± 0.03 % (300 ppm)
± 0.5 %
± 0.015 % (150 ppm)
± 0.01 % (100 ppm)
± 2.0 %
± 0.1 % (1000 ppm)
± 0.05 % (500 ppm)
5 ppm/V
< 0.1 ppm/V
< 0.1 ppm/V
See Table 1.
Document Number: 63001
Revision: 02-Mar-15
For any questions, contact
foil@vpgsensors.com
www.vishayfoilresistors.com
3
S Series
FIGURE 5 - LONG-TERM STABILITY OVER 29 YEARS (0.1W AT 70°C, 50 SAMPLES S102C,
10K)
40
20
0
-20
-40
-60
-80
ΔR/R (ppm)
-100
-120
0
5
10
15
20
25
30
Time (Years)
STANDARD OPERATIONS AND TEST
CONDITIONS
A. Standard Test Operations:
By 100 % Inspection
Short-time overload (6.25 x rated power for 5 s)
Resistance - tolerance check
IMPROVED PERFORMANCE TESTING (IPT)
The preceding information is based on product directly off
the production line. Improved performance (meaning
increased time stability with load and other stresses) is
available through factory conducted “Improved Performance
Testing”. The test routine is usually tailored to the user’s
stability objectives and IPT-processed resistors can exhibit
improved load-life stability levels of less than 50 ppm.
Various screen test routines are available and all anticipated
stresses must be taken into account before settling on one
specific test routine. VFR's application engineering
department is prepared to discuss and recommend
appropriate routines given the full spectrum of anticipated
stresses and stability requirements.
Visual and mechanical
By Sample Inspection
TCR
Environmental tests per table 3 on a quarterly basis to
establish performance by similarity
B. Standard Test Conditions:
Lead test point: 0.5" (12.7 mm) from resistor body
Temperature: + 23 °C ± 2 °C
Relative humidity: per MIL-STD-202
TABLE 4 - “S” SERIES SPECIFICATIONS
Stability
(1)
Load life at 2000 h
± 0.015 % (150 ppm)
± 0.005 % (50 ppm)
Load life at 10 000 h
± 0.05 % (500 ppm)
± 0.01 % (100 ppm)
Current Noise
High Frequency Operation
Rise time
Inductance (L)
(2)
Capacitance (C)
Voltage Coefficient
Thermal Electromotive Force (EMF)
(4)
1.0 ns at 1 k
0.1 µH maximum; 0.08 µH typical
1.0 pF maximum; 0.5 pF typical
< 0.1 ppm/V
(3)
0.1 µV/°C Maximum; 0.05 µV/°C typical
1 µV/W
(Model S102C)
0.010 µV
Maximum
R
at 0.3 W/+ 125 °C
Maximum
R
at 0.1 W/+ 70 °C
Maximum
R
at 0.3 W/+ 125 °C
Maximum
R
at 0.05 W/+ 125 °C
(RMS)/V of applied voltage (- 40 dB)
(1)
(2)
(3)
(4)
Notes
Load life
R
maximum can be reduced by 80 %, please contact applications engineering department.
Inductance (L) due mainly to the leads.
The resolution limit of existing test equipment (within the measurement capability of the equipment, or “essentially zero”.)
µV/°C relates to EMF due to lead temperature difference and µV/watt due to power applied to the resistor.
For any questions, contact
foil@vpgsensors.com
Document Number: 63001
Revision: 02-Mar-15
www.vishayfoilresistors.com
4
S Series
TABLE 5 - GLOBAL PART NUMBER INFORMATION
(1)
NEW GLOBAL PART NUMBER: Y000780K5000V9L (preferred part number format)
DENOTES PRECISION
Y
VALUE
R
=
K
= k
M
= M
CHARACTERISTICS
0
= standard
9
= lead (Pb)-free
1 to 999
= custom
Y
0
0
0
7
8
0
K
5
0
0
0
V
9
L
PRODUCT CODE
0007
= S102C
0785
= S102J
0062
= S102K
0786
= S102L
0011
= S104D
5011
= S104F
0101
= S104K
4101
= S104L
0012
= S105D
4012
= S105F
0102
= S105K
4102
= S105L
0013
= S106D
0103
= S106K
TYPE: S102C
VALUE: 80.5 k
ABSOLUTE TOLERANCE: ± 0.005 %
TERMINATION: lead (Pb)-free
PACKAGING: bulk pack
RESISTANCE TOLERANCE
V
= ± 0.005 %
T
= ± 0.01 %
Q
= ± 0.02 %
A
= ± 0.05 %
B
= ± 0.1 %
C
= ± 0.25 %
D
= ± 0.5 %
F
= ± 1.0 %
PACKAGING
L
= bulk pack
FOR EXAMPLE: ABOVE GLOBAL ORDER Y0007 80K5000 V 9 L:
HISTORICAL PART NUMBER: S102C T 80K500 V B (will continue to be used)
S102C
MODEL
S102C
S102J
S102K
S102L
S104D
S104F
S104K
S104L
S105D
S105F
S105K
S105L
S106D
S106K
Note
(1)
T
TERMINATION
T
= lead (Pb)-free
None = tin/lead alloy
80K500
RESISTANCE VALUE
250R00
= 250.00
5K2310
= 5.231 k
1M000
= 1 M
V
TOLERANCE
V
= ± 0.005 %
T
= ± 0.01 %
Q
= ± 0.02 %
A
= ± 0.05 %
B
= ± 0.1 %
C
= ± 0.25 %
D
= ± 0.5 %
F
= ± 1.0 %
B
PACKAGING
B
= bulk pack
For non-standard requests, please contact application engineering.
Document Number: 63001
Revision: 02-Mar-15
For any questions, contact
foil@vpgsensors.com
www.vishayfoilresistors.com
5
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