S Series
Vishay Foil Resistors
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.
Pb-free
Available
−
S102C series: ± 2 ppm/°C typical (see table 1)
−
S102K series: ± 1 ppm/°C typical (see table 1)
RoHS*
COMPLIANT
•
Rated power: to 1 W at + 125 °C
•
Tolerance: ± 0.005 %
•
Load life stability: to ± 0.005 % at 70 °C, 2000 h at rated
power
•
Resistance range: 0.5
Ω
to 1 MΩ (higher or lower values of
resistance are available)
•
Electrostatic discharge above 25 000 V
•
Non inductive, non capacitive design
•
Rise time: 1 ns without ringing
•
Current noise: < - 40 dB
•
Thermal EMF: 0.05 µV/°C typical
•
Voltage coefficient: < 0.1 ppm/V
•
Low inductance: < 0.08 µH typical
•
Non hot spot design
•
Terminal finishes available: lead (Pb)-free
tin/lead alloy
•
Matched sets are available per request
(TCR Tracking: to 0.5 ppm/°C)
•
For better TCR and PCR performances please review the
Z201
datasheet
Any value at any tolerance available within resistance range
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, and products based on this technology are the
most suitable for a wide range of applications. BMF
technology allows us to produce customer orientated
products, designed to satisfy challenging and specific
technical requirements.
Model S Series made from Vishay BMF 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.
Vishay’s Bulk Metal
®
S Series resistors are the modern
generation of precision resistors. The standard design of
these resistors provides a unique combination of
characteristics found in no other single resistor.
Our Application Engineering Department is available to
advise and to make recommendations. For non-standard
technical requirements and special applications, please
contact us.
APPLICATIONS
•
•
•
•
•
•
•
High precision amplifiers
Down-hole (high temperature)
High precision instrumentation
Medical and test equipment
Industrial
Audio (high end stereo equipment)
EB applications (electron beam scanning and recording
equipment, electron microscopes)
•
Military, airborne
•
Measurement instrumentation
TABLE 1 - RESISTANCE VERSUS TCR
(- 55 °C to + 125 °C, + 25 °C Ref.)
RESISTOR
S102(C)
S102(K)
S102(C)
S102(K)
S102(C)
S102(K)
RESISTANCE
VALUE (Ω)
80 to < 150K
80 to < 100K
50 to < 80
1 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
FIGURE 1 - FOIL RESISTOR TCR COMPARISON OF
FOIL ALLOYS IN MILITARY RANGE
+ 150
+ 100
Δ
R
+ 50
1 ppm/
°
C
0
R
(ppm)
- 50
- 100
- 150
- 200
- 50
- 55
- 25
0
+ 25
+ 50
+ 75
+ 100
2 ppm/
°
C
+ 125
C Alloy
2 ppm/
°
C
K Alloy
1 ppm/
°
C
Temperature (°C)
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63001
Revision: 20-Nov-07
For any questions, contact: foil@vishay.com
www.vishay.com
1
S Series
Vishay Foil Resistors
High Precision Foil Resistor with TCR of ± 2.0 ppm/°C,
Tolerance of ± 0.005 % and Load Life Stability of ± 0.005 %
FIGURE 2 - STANDARD IMPRINTING AND DIMENSIONS
Front View
L
VISHAY
XXXX
S102C
Date Code
01
10
Year
Week
ST
1)
Model
Number
LS
SW
Lead Material #22 AWG
Round Solder Coated Copper
LL
W
Rear View
Optional Customer Part
Number
Print specification, etc. if required
XXXXXX
100R01
0.01
%
Resistance
Value
Code
Tolerance
H
Note
1. 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. This is to allow for proper cleaning of flux and other contaminants from the unit
after all soldering processes.
TABLE 2 - MODEL SELECTION
RESISTANCE MAXIMUM
MODEL
RANGE
WORKING
NUMBER
(Ω)
VOLTAGE
S102C
(S102J)
2)
S102K
(S102L)
2)
S104D
(S104F)
1)
AMBIENT
POWER RATING
at
+ 70 °C
at
+ 125 °C
AVERAGE
WEIGHT
IN GRAMS
DIMENSIONS
INCHES
W: 0.105 ± 0.010
L: 0.300 ± 0.010
H: 0.326 ± 0.010
ST: 0.010 min.
SW: 0.035 ± 0.010
LL: 1.000 ± 0.125
LS: 0.150 ± 0.0054
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
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.
14.61 max.
10.49 max.
0.889 ± 0.13
1.27 ± 0.13
25.4 ± 3.18
10.16 ± 0.51
4.06 max.
20.83 max.
10.49 max.
0.889 ± 0.13
1.27 ± 0.13
25.4 ± 3.18
16.51 ± 0.51
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
F
1)
(INCHES)
TIGHTEST
TOLERANCE
VS. LOWEST
RESISTANCE
VALUE
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
0.6
1 to 500K
350
1.4
S104K
1 to 300K
(0.138)
(0.565)
(0.413)
S105D
(S105F)
1)
1 to 750K
350
(0.138)
(0.890)
(0.413)
1.9
over 300K
2.0 W
1.0 W
up to 400K
1.0 W
0.5 W
over 400K
0.005 %/50
Ω
0.01 %/25
Ω
0.02 %/12
Ω
0.05 %/5
Ω
0.1 %/2
Ω
0.25 %/2
Ω
0.50 %/1
Ω
1.0 %/1
Ω
S105K
1 to 500K
(0.7 ±
0.02)
S106D
0.5 to 1M
500
4.0
S106K
0.5 to 600K
Notes
1. S104F and S105F have different package dimensions (see last column). All other specifications are the same.
2. 0.200" (5.08 mm) lead spacing available - specify S102J for S102C, and S102L for S102K.
www.vishay.com
2
For any questions, contact: foil@vishay.com
Document Number: 63001
Revision: 20-Nov-07
S Series
High Precision Foil Resistor with TCR of ± 2.0 ppm/°C,
Vishay Foil Resistors
Tolerance of ± 0.005 % and Load Life Stability of ± 0.005 %
FIGURE 3 - POWER DERATING CURVE
Percent of Rated Power at + 125 °C
200
%
175
%
150
%
125
%
100
%
75
%
50
%
25
%
0
- 75
- 55 °C
+ 70 °C
FIGURE 4 - TRIMMING TO VALUES
(Conceptual Illustration)
Double Rated Power
Interloop Capacitance
Reduction in Series
Rated Power
Current Path
Before Trimming
Current Path
After Trimming
Trimming Process
Removes this Material
from Shorting Strip Area
Changing Current Path
and Increasing
Resistance
Safe operation
for < 150 ppm
∆
R after 2000
hours load-life.
Mutual Inductance
Reduction due
to Change in
Current Direction
- 50
- 25
0
+ 25
+ 50
+ 75
+ 100 + 125 + 150 + 175 + 200
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
Characteristic
Low temperature storage (24 h at - 65 °C)
Low temperature operation
(45 min, rated power at - 65 °C)
Terminal strength
Test Group III
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
5 ppm/V
< 0.1 ppm/V
< 0.1 ppm/V
± 2.0 %
± 0.1 % (1000 ppm)
± 0.05 % (500 ppm)
± 0.5 %
± 0.015 % (150 ppm)
± 0.01 % (100 ppm)
± 0.5 %
± 2.0 %
± 0.015 % (150 ppm)
± 0.05 % (500 ppm)
± 0.01 % (100 ppm)
± 0.03 % (300 ppm)
± 0.2 %
± 0.2 %
± 0.01 % (100 ppm)
± 0.01 % (100 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)
± 0.15 %
± 0.15 %
± 0.2 %
± 0.01 % (100 ppm)
± 0.01 % (100 ppm)
± 0.01 % (100 ppm)
± 0.002 % (20 ppm)
± 0.002 % (20 ppm)
± 0.002 % (20 ppm)
± 25 ppm/°C
± 4.5 ppm/°C
± 2.0 ppm/°C
± 0.2 %
± 0.2 %
± 0.01 % (100 ppm)
± 0.01 % (100 ppm)
± 0.002 % (20 ppm)
± 0.003 % (30 ppm)
S-SERIES
MAXIMUM
ΔR
S-SERIES
TYPICAL
ΔR
Document Number: 63001
Revision: 20-Nov-07
For any questions, contact: foil@vishay.com
www.vishay.com
3
S Series
Vishay Foil Resistors
High Precision Foil Resistor with TCR of ± 2.0 ppm/°C,
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
Tolerance of ± 0.005 % and Load Life Stability of ± 0.005 %
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 users
stability objectives and product that has been screened can
be brought down to a potential load life 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. Our Applications 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 EMF
4)
1.0 ns at 1 kΩ
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
1 µV/W
Maximum; 0.05 µV/°C typical
(Model S102C)
0.010 µV
Maximum
ΔR
at 0.3 W/+ 125 °C
Maximum
ΔR
at 0.1 W/+ 70 °C
Maximum
ΔR
at 0.3 W/+ 125 °C
Maximum
ΔR
at 0.05 W/+ 125 °C
(RMS)/V of applied voltage (- 40 dB)
Notes
1. Load life
ΔR
maximum can be reduced by 80 %, please contact Applications Engineering Department.
2. Inductance (L) due mainly to the leads.
3. The resolution limit of existing test equipment (within the measurement capability of the equipment, or “essentially zero”.)
4. µV/°C relates to EMF due to lead temperature difference and µV/watt due to power applied to the resistor.
www.vishay.com
4
For any questions, contact: foil@vishay.com
Document Number: 63001
Revision: 20-Nov-07
S Series
High Precision Foil Resistor with TCR of ± 2.0 ppm/°C,
Vishay Foil Resistors
Tolerance of ± 0.005 % and Load Life Stability of ± 0.005 %
TABLE 5 - GLOBAL PART NUMBER INFORMATION
NEW GLOBAL PART NUMBER: Y000780K5000V9L (preferred part number format)
DENOTES PRECISION
Y
VALUE
R
=
Ω
K
= kΩ
M
= MΩ
AER*
0
= standard
9
= lead (Pb)-free
1 - 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 kΩ
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 250R00 V B (will continue to be used)
S102C
MODEL
S102C
S102J
S102K
S102L
S104D
S104F
S104K
S104L
S105D
S105F
S105K
S105L
S106D
S106K
Note
* For non-standard requests, please contact application engineering.
T
TERMINATION
T
= lead (Pb)-free
None = tin/lead alloy
250R00
RESISTANCE VALUE
250R00
= 250.00
Ω
5K2310
= 5.231 kΩ
1M000
= 1 MΩ
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
Document Number: 63001
Revision: 20-Nov-07
For any questions, contact: foil@vishay.com
www.vishay.com
5
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