High Precision Foil Resistor with TCR of
± 2.0 ppm/°C
,
Tolerance of
± 0.01 %
and Load Life Stability
of
± 0.005 %
CECC Qualified
RS92N, RS92NA, AN
Vishay Foil Resistors
Document Number: 63138 For any questions, contact: foil@vishaypg.com www.foilresistors.com
Revision: 25-Mar-10 1
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.
Models RS92N, RS92NA, and AN made from 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 RS92N, RS92NA, and AN are 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® RS92N, RS92NA, and AN 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.
FEATURES
Temperature coefficient of resistance (TCR):
± 2 ppm/°C typical (- 55 °C to + 155 °C, ref. + 20 °C)
Resistance range: 80.6 to 120 k
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)
Rated power: to 0.25 W at + 125 °C
Tolerance: ± 0.01 %
Load life stability: to ± 0.005 % at 70 °C, 2000 h at rated
power
Electrostatic discharge up to 25 000 V
Non inductive, non capacitive design
Rise time: 1 ns effectively no 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 finish available: 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
RNC90Z and Z555 datasheets
TABLE 1 - TOLERANCE AND TCR VS. RESISTANCE VALUE (- 55 °C to + 155 °C, + 20 °C Ref.)
RESISTANCE VALUE
()
TOLERANCE
(%)
TYPICAL TCR AND MAX. SPREAD
(ppm/°C)
80.6 to 120K ± 0.01 ± 2 ± 3
TABLE 2 - MECHANICAL AND ENVIRONMENTAL SPECIFICATIONS
Mechanical Protection Insulated case
Resistive Element Nickel-chromium
Unit Weight 0.3 g
Temperature Limits - 55 °C to + 155 °C
Climatic Category 55/155/56
RS92N, RS92NA, AN
Vishay Foil Resistors
www.foilresistors.com For any questions, contact: foil@vishaypg.com Document Number: 63138
2Revision: 25-Mar-10
TABLE 3 - ELECTRICAL SPECIFICATIONS
Qualified Ohmic Range RS92N, RS92NA 80R6 to 120K
AN 80R6 to 92K
Qualified Tolerances 0.01 % to 1 %
Power Rating 0.5 W at +70 °C
0.25 W at + 125 °C
Temperature Coefficient see diagram
Dielectric Strength 700 VAC
Insulation Resistance > 104 M
Thermal EMF < 0.5 µV for 1 °C of difference between leads
Noise non measureable
Thermal Resistance 0.14 °C/mW
TABLE 4 - PERFORMANCE
TESTS CONDITIONS
REQUIREMENTS
C 83-220
CECC 40302-001
TYPICAL DRIFTS
Overload 2.5 Un/5 s
Umax. < 2 Un
± 0.01 % ± 0.002 %
Temperature Cycling - 55 °C to + 155 °C, 5 cycles
CEI 68-2-14 test Na ± 0.01 % ± 0.003 %
Terminals Strength
CEI 68-2-21
test Ua (pulling), Ub (bending),
Uc (twisting)
± 0.01 % ± 0.002 %
Resistance to Soldering Heat 260 °C/10 s
CEI 68-2-20A test Tb (method 1A) ± 0.01 % ± 0.002 %
Vibrations
10 Hz to 500 Hz
0.75 mm or 10g for 6 h method B4
CEI 68-2-6 test Fc
± 0.01 % ± 0.002 %
Climatic Sequence
- 55 °C to + 155 °C, 6 cycles,
95 % R.H., 85 mbar
CEI 68-1
± 0.05 %
Insulation R > 102 M
± 0.003 %
Insulation R > 104 M
Humidity (Steady State) 56 days, 95 % R.H., 40 °C
CEI 68-2-3
± 0.05 %
Insulation R > 102 M
± 0.003 %
Insulation R > 104 M
Load Life 1000 h Pr at + 70 °C
90’/30’ cycle ± 0.05 % ± 0.01 %
High Temperature Exposure 1000 h/155 °C
CEI 68-2-20A test B ± 0.05 % ± 0.01 %
RS92N, RS92NA, AN
Vishay Foil Resistors
Document Number: 63138 For any questions, contact: foil@vishaypg.com www.foilresistors.com
Revision: 25-Mar-10 3
FIGURE 1 - STANDARD IMPRINTING AND DIMENSIONS
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.
MODEL DIM. LS W L H ST LL WEIGHT
NOMINAL
RS92NA mm 3.81 ± 0.13 2.50 max. 7.50 max. 8.00 max. 0.254 min. 25.4 min. 0.6 g
RS92N mm 5.08 ± 0.076 2.50 max. 7.50 max. 8.00 max. 0.254 min. 25.4 min. 0.6 g
AN mm 5.08 ± 0.076 2.50 max. 7.50 max. 8.00 max. 0.254 min. 25.4 min. 0.6 g
FIGURE 2 - TRIMMING TO VALUES (Conceptual Illustration)
LS
Model Number
VISHAY
XXXX
RS92
ST
1)
H
L
Date Code
W
Front View Rear View
Lead Material #22 AWG
Round Solder Coated Copper
Optional Customer Part Number
Print specification, etc. if required
Resistance
Value Code
Tolerance
XXXXXX
100R01
0.01 %
LL
SW
10
Week
01
Year
Mutual Inductance
Reduction due
to Change in
Current Direction
Current Path
Before Trimming
Note: Foil shown in black, etched spaces in white
Interloop Capacitance
Reduction in Series
Trimming Process
Removes this Material
from Shorting Strip Area
Changing Current Path
and Increasing
Resistance
Current Path
After Trimming
FIGURE 3 - POWER DERATING CURVE
1.00
0.75
0.50
0.25
00 25 50 75 100 125 150 175
Rated Power (W)
Ambient Temperature (°C)
+ 70 °C + 155 °C
FIGURE 4 - TYPICAL RESISTANCE/
TEMPERATURE CURVE
- 50 - 25 0 + 25 + 50 + 75 + 100 + 125
- 55
C Alloy
2 ppm/°C
2 ppm/°C
+ 150
+ 100
+ 50
0
- 50
- 100
- 150
- 200
ΔR
R
(ppm)
Ambient Temperature (°C) and TCR Chord Slopes
for Different Temperature Ranges
RS92N, RS92NA, AN
Vishay Foil Resistors
www.foilresistors.com For any questions, contact: foil@vishaypg.com Document Number: 63138
4Revision: 25-Mar-10
Note
(1) For non-standard requests, please contact application engineering.
TABLE 5 - GLOBAL PART NUMBER INFORMATION (1)
NEW GLOBAL PART NUMBER: Y144280K5000T0L (preferred part number format)
DENOTES PRECISION VALUE CHARACTERISTICS
YR =
K = k
M = M
0 = standard
1 to 999 = custom
PRODUCT CODE RESISTANCE TOLERANCE PACKAGING
1442 = RS92N
1687 = RS92NA
1688 = AN
T = ± 0.01 %
Q = ± 0.02 %
A = ± 0.05 %
B = ± 0.1 %
C = ± 0.25 %
D = ± 0.5 %
F = ± 1.0 %
L = bulk pack
FOR EXAMPLE: ABOVE GLOBAL ORDER Y1442 80K5000 T 0 L:
TYPE: RS92N
VALUE: 80.5 k
ABSOLUTE TOLERANCE: ± 0.01 %
TERMINATION: standard
PACKAGING: bulk pack
HISTORICAL PART NUMBER: RS92N 250R00 T B (will continue to be used)
RS92N 250R00 T B
MODEL TERMINATION RESISTANCE VALUE TOLERANCE PACKAGING
RS92N
RS92NA
AN
None = tin/lead alloy 250R00 = 250.00
5K2310 = 5.231 k
1M000 = 1 M
T = ± 0.01 %
Q = ± 0.02 %
A = ± 0.05 %
B = ± 0.1 %
C = ± 0.25 %
D = ± 0.5 %
F = ± 1.0 %
B = bulk pack
4428 K500Y1 T00 L0
Document Number: 63999 www.vishaypg.com
Revision: 22-Feb-10 1
Disclaimer
Legal Disclaimer Notice
Vishay Precision Group
1
All product specifications and data are subject to change without notice.
Vishay Precision Group, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay Precision Group”), disclaim any and all liability for any errors, inaccuracies or incompleteness
contained herein or in any other disclosure relating to any product.
Vishay Precision Group disclaims any and all liability arising out of the use or application of any product described
herein or of any information provided herein to the maximum extent permitted by law. The product specifications do
not expand or otherwise modify Vishay Precision Group’s terms and conditions of purchase, including but not limited
to the warranty expressed therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay Precision Group.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay Precision Group products not expressly indicated
for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay Precision Group for
any damages arising or resulting from such use or sale. Please contact authorized Vishay Precision Group
personnel to obtain written terms and conditions regarding products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
