S Series
Vishay Foil Resistors
Bulk Metal
®
Foil Technology
High-Performance Aerospace and Instrumentation Resistors
FEATURES
•
Very low Temperature Coefficient of Resistance (TCR): *
- 55
°
C to + 125
°
C, 25
°
C Ref
- S102C Series:
±
2 ppm/°C nominal,
±
4.5 ppm/°C maximum
- S102K Series:
±
1 ppm/°C nominal,
±
2.5 ppm/°C maximum
• Very Low TCR Tracking: to 0.5 ppm/°C
• Excellent Load Life Stability: to
±
0.005% at 70°C, 2000hrs
• Very Tight Tolerance:
±
0.005%
THROUGH HOLE
• Resistance Range: 0.5Ω to 1MΩ
• Excellent Shelf Life Stability:
to Maximum 0.0025 %, 1year
• High Rated Power: to 2W at +125
°C
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, 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 extremely 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 Bulk Metal S Series are the modern generation of
precision resistors, their design gives you a unique
combination of characteristics found in no other single
resistor- and they’re all standard.
Our Application Engineering Department is prepared to
advise and to make recommendation for non-standard
technical requirements and special applications, please
contact us.
®
®
• Low Voltage Coefficient: (see table 2)
• Non Inductive: (see table 2)
• Low Current Noise: (see table 2) “Noise Free Component”
• Rise/Decay Time: (see table 2)
• Low Thermal EMF: (see table 2)
• Terminal Finishes Available:
Lead (Pb)-free (Sn 100%)
Tin/Lead Alloy (Sn 60%, Pb 40%)
* For values below 50Ω please contact Application Engineering
APPLICATIONS
• High Precision Amplifiers
• 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
SALES
• ISRAEL: foilsales.israel@vishay.com
• FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com
• AMERICAS: foilsales.usa@vishay.com
• ASIA/JAPAN: foilsales.asia@vishay.com • UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@vishay.com • GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com
For technical questions in the Americas, contact foilsupport1@vishay.com
Document Number: 63001
For technical questions in Asia/Japan/Europe/Africa/Israel, contact foilsupport2@vishay.com
Revision 31-Jan-05
www.vishay.com
71
S Series
Vishay Foil Resistors
FIGURE 1 - STANDARD IMPRINTING AND DIMENSIONS
Front View
L
VISHAY
XXXX
S102C
Date Code
01
10
Year Week
ST*
Model Number
LS
Lead Material #22 AWG
Round Solder Coated Copper
SW
LL
W
Rear View
Optional Customer Part Number
Print specification, etc. if required
XXXXXX
100R01
0.01%
Resistance
Value Code
Tolerance
H
THROUGH HOLE
*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 1 - MODEL SELECTION
MODEL
NUMBER
RESISTANCE MAXIMUM
AMBIENT
RANGE
WORKING POWER RATING
(
Ω
)
VOLTAGE @+70
°
C @+125
°
C
AVERAGE
WEIGHT
IN GRAMS
DIMENSIONS
INCHES
mm
TIGHTEST TOLERANCE%
VS. LOWEST
*F (INCHES)
RESISTANCE VALUE
Ω
S102C
S102K
S104D (S104F*)
S104K
S105D (S105F*)
S 105K
S106D
S106K
1 to 150K
1 to 100K
1 to 500K
1 to 300K
1 to 750K
1 to 500K
0.5 to 1M
0.5 to 600K
300
0.6 W
0.3 W
up to 100K
0.4 W
0.2 W
over 100K
0.6
W:
L:
H:
ST:
SW:
LL:
LS:
W:
L:
H:
ST:
SW:
LL:
LS:
W:
L:
H:
ST:
SW:
LL:
LS:
W:
L:
H:
ST:
SW:
LL:
LS:
0.105
±
0.010
0.300
±
0.010
0.326
±
0.010
0.010 Minimum
0.040
±
0.005
1.000
±
0.125
0.150
±
0.005
4
2.67
±
0.25
7.62
±
0.25
8.28
±
0.25
0.254 Minimum
1.02
±
0.13
25.4
±
3.18
3.81
±
0.13
(0.138)
(0.565)
(0.413)
±
0.005 / 50
±
0.01 / 25
±
0.02 / 12
±
0.05 / 5
±
0.1 / 2
±
0.5 / 1
350
1.0 W
0.5 W
up to 200K
0.6 W
0.3 W
over 200K
1.4
0.160 Maximum 4.06 Maximum
0.575 Maximum 14.61 Maximum
0.413 Maximum 10.49 Ma ximum
0.035
±
0.005 0.889
±
0.13
0.050
±
0.005 1.27
±
0.13
1.000
±
0.125 25.4
±
3.18
0.400
±
0.020 10.16
±
0.51
350
1.5 W
0.75 W
up to 300K
0.8 W
0.4 W
over 300K
1.9
0.160 Maximum 4.06 Maximum (0.138)
0.820 Maximum 20.83 Maximum (0.890)
0.413 Maximum 10.49 Maximum (0.413)
0.035
±
0.005 0.889
±
0.13
0.050
±
0.005 1.27
±
0.13
1.000
±
0.125 25.4
±
3.18
0.650
±
0.020 16.51
±
0.51 (0.7
±
0.02)
0.260 Maximum 6.60 Maximum
1.200 Maximum 30.48 Maximum
0.413 Maximum 10.49 Maximum
0.035
±
0.005 0.889
±
0.13
0.050
±
0.005 1.27
±
0.13
1.000
±
0.125 25.4
±
3.18
0.900
±
0.020 22.86
±
0.51
500
2.0 W
1.0 W
up to 400K
1.0 W
0.5 W
over 400K
4.0
Percent of Rated Power @ +125°C
*S104F and S105F have different package dimensions (see last
column). All other specifications are the same.
**0.200” (5.08mm) lead spacing available - specify S102J for
S102C, and S102L for S102K.
Note its minor outline dimensions variations:
FIG 2 - POWER DERATING CURVE "S" SERIES
200%
175%
150%
125%
100%
75%
50%
25%
0
–75
–55°C
+70°C
Double Rated Power
INCHES
W:
L:
H:
ST:
LL:
LS
0.098 Maximum
0.295 Maximum
0.315 Maximum
0.01 Minimum
0.875 Minimum
0.200
±
0.003
mm
2.49 Maximum
7.49 Maximum
8.00 Maximum
0.254 Minimum
22.23 Minimum
5.08
±
0.076
Rated Power
Safe operation
for <150 ppm
∆R
after 2,000
hours load-life.
–50
–25
0
+25
+50
+75
+100 +125 +150 +175 +200
Ambient Temperature (°C)
SALES
• ISRAEL: foilsales.israel@vishay.com
• FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com
• AMERICAS: foilsales.usa@vishay.com
• ASIA/JAPAN: foilsales.asia@vishay.com • UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@vishay.com • GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com
www.vishay.com
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For technical questions in the Americas, contact foilsupport1@vishay.com
Document Number: 63001
For technical questions in Asia/Japan/Europe/Africa/Israel, contact foilsupport2@vishay.com
Revision 31-Jan-05
S Series
Bulk Metal
®
Foil Technology
Vishay Foil Resistors
High-Performance Aerospace and Instrumentation Resistors
TABLE 2 - “S” SERIES SPECIFICATIONS
Stability
1
Load Life at 2,000 hours.
±
0.015%
±
0.005%
±
0.05%
±
0.01%
Shelf Life Stability
±
0.0025%
±
0.005%
Current Noise
High Frequency Operation
Rise/Decay Time
Inductance (L)
2
Capacitance (C)
Voltage Coefficient
Thermal EMF
4
1.0ns at 1KΩ
0.1µH maximum; 0.08µH typical
1.0pF maximum; 0.5pF typical
< 0.1ppm/V
3
0.1µV/°C
1µV/watt
1.
2.
3.
4.
Maximum; 0.05µV/°C typical
(Model S102C)
0.010µV
Maximum
∆R
@ 0.3W/+ 125°C
Maximum
∆R
@ 0.1W/+ 70°C
Maximum
∆R
@ 0.3W/+ 125°C
Maximum
∆R
@ 0.05W/+ 125°C
Maximum
∆R
after 1 year
Maximum
∆R
after 3 years
(RMS)/Volt of applied voltage (–40dB)
Load Life at 10,000 hours.
THROUGH HOLE
Load life
∆R
Maximum can be reduced by 80% through an optional burn-in procedure.
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.
TABLE 3 - ORDERING INFORMATION
Specify Vishay S Series resistors as follows:
Example:
V =
±
0.005%
T =
±
0.01%
Q =
±
0.02%
A =
±
0.05%
B =
±
0.1%
C =
±
0.25%
D =
±
0.5%
F =
±
1.0%
TOLERANCE
S102C
MODEL NO.
T = Lead (Pb)-free
none = Tin/Lead alloy
TERMINATION
250R00
RESISTANCE VALUE
Resistance Value, in ohms, is expressed by a series of 6 characters, 5 of which represent significant digits while the 6th is
a dual purpose letter that designates both the multiplier and the location of the comma or decimal.
RESISTANCE
RANGE
10Ω to <1KΩ
1KΩ to 100KΩ
LETTER
DESIGNATOR
R
K
MULTIPLIER
FACTOR
x1
x 10
3
EXAMPLE
100R01 = 100.01Ω
5K2310 = 5,231Ω
For example: S102C T 250R00 V - Model: S102C; Termination: lead (Pb)-free; Value: 250Ω; Tolerance: 0.005%
SALES
• ISRAEL: foilsales.israel@vishay.com
• FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com
• AMERICAS: foilsales.usa@vishay.com
• ASIA/JAPAN: foilsales.asia@vishay.com • UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@vishay.com • GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com
For technical questions in the Americas, contact foilsupport1@vishay.com
Document Number: 63001
For technical questions in Asia/Japan/Europe/Africa/Israel, contact foilsupport2@vishay.com
Revision 31-Jan-05
www.vishay.com
73
S Series
Vishay Foil Resistors
Bulk Metal
®
Foil Technology
High-Performance Aerospace and Instrumentation Resistors
TABLE 4 - ENVIRONMENTAL PERFORMANCE COMPARISON
MIL-PRF-55182
CHAR J
Test Group I
Thermal Shock
Overload
Test Group II
Resistance Temperature
Characteristic
Low Temp Storage
Low Temp Operation
Terminal Strength
±
0.2%
±
0.2%
±
25ppm/°C
±
0.15%
±
0.15%
±
0.2%
±
0.15%
±
0.1%
±
0.4%
±
0.2%
±
0.2%
S-SERIES
MAXIMUM
∆
R
±
0.01%
±
0.01%
+ 4.5ppm/°C
±
0.01%
±
0.01%
±
0.01%
±
0.01%
±
0.01%
±
0.05%
±
0.01%
±
0.01%
±
0.005%
±
0.005%
±
0.002%
±
0.005%
±
0.002%
±
0.02%
±
0.002%
±
0.002%
S-SERIES
TYPICAL
∆
R
±
0.002%
±
0.003%
THROUGH HOLE
Test Group III
DWV
Resistance to Solder Heat
Moisture Resistance
Test Group IV
Shock
Vibration
Test Group V
Life Test @ 0.3 W/+125°C
2,000 Hours
10,000 Hours
Test Group Va
+70°C Power Rating
Test Group VI
High Temperature Exposure
Test Group VII
Voltage Coefficient
±
0.5%
±
2.0%
±
0.5%
±
2.0%
0.005%/V
±
0.015%
±
0.05%
±0.1%
±
0.1%
< 0.00001%/V
±
0.01%
±
0.03%
±
0.05%
±
0.05%
< 0.00001%/V
STANDARD OPERATIONS & TEST CONDITIONS
A. Standard Test Operations:
By 100% Inspection
•
•
•
•
•
Short-time overload (6.25 x rated power for 5 seconds)
Resistance – tolerance check
Visual and mechanical
TCR
Environmental tests per Table 3 on a quarterly basis to
establish performance by similarity.
Lead test point: 0.5" (12.7 mm) from resistor body
Temperature: + 22°C
±
2°C
Relative humidity: per MIL-Std-202
IMPROVED PERFORMANCE TESTING
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 stabilty
objectives and product that has been screened can be
brought down to a potential load life of less than 50ppm.
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.
By Sample Inspection
B. Standard Test Conditions:
•
•
•
SALES
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• FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com
• AMERICAS: foilsales.usa@vishay.com
• ASIA/JAPAN: foilsales.asia@vishay.com • UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@vishay.com • GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com
www.vishay.com
74
For technical questions in the Americas, contact foilsupport1@vishay.com
Document Number: 63001
For technical questions in Asia/Japan/Europe/Africa/Israel, contact foilsupport2@vishay.com
Revision 31-Jan-05
Legal Disclaimer Notice
Vishay
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
Document Number: 91000
Revision: 08-Apr-05
www.vishay.com
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