VHP203 (Z-Foil)
Vishay Foil Resistors
Hermetically Sealed Miniature Ultra High Precision Z-Foil Technology
Resistors with TCR of 0.05 ppm/°C, Tolerance of ± 0.001 % and
Load Life Stability of ± 0.005 %, Unaffected by Humidity
FEATURES
INTRODUCTION
The Z-foil based oil filled, hermetically sealed VHP203
resistor represents an industry breakthrough. The hermetic
sealing eliminates the ingress of moisture and oxygen, while
the oil acts as a thermal conductor, thus eliminating long term
degradation of elements of unsealed resistors, while at the
same time allowing the device to accept short periods of
overload without degradation.
The VHP203 is also available with laboratory and metrology
level precision and long term stability with additional inhouse
oriented process such as: special TCR plotting, chip
stabilitzation inhouse thermal shock and bake prior to
sealing, combined thermal shock and power conditioning on
finished product, thermal and power conditioning, CLT.
The Z-foil technology provides a significant reduction of the
resistive components sensitivity to ambient temperature
variations (TCR) and applied power changes (PCR). When
combined with the hermetic sealing and oil filling, the
VHP203 resistor become the most precise and stable
resistor available.
The value of the hermetic enclosure over the molded part is
in long term performance.
With accuracy of ± 0.001 % (10 ppm) and a resistance range
from 10 to 150 k and long term shelf life of less than
2 ppm, this device is virtually a secondary standard that can
be carried in sets for daily or periodic calibration of factory
measurement equipment.
Temperature coefficient of resistance (TCR):
± 0.05 ppm/°C (0 °C to 60 °C)
Power coefficient “R due to self heating”:
5 ppm at rated power
Tolerance: to ± 0.001 % (10 ppm)
Load life stability: ± 0.002 % maximum R (60 °C
for 2000 h at 0.1 W per chip)
Electrostatic discharge (ESD) up to 25 000 V
Resistance range: 10 to 150 k (higher or lower values
of resistance available)
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)
Power rating: 0.3 W at + 25 °C
Shelf life stability: 2 ppm for at least 6 years
Non-inductive, non-capacitive design
Non hot spot design
Rise time: 1 ns effectively no ringing
Current noise: 0.010 µVRMS/V of applied voltage (< - 40 dB)
Thermal EMF: 0.05 µV/°C typical
Voltage coefficient: < 0.1 ppm/V
Non inductive: < 0.08 µH
Terminal finish: lead (Pb)-free or tin/lead alloy
Compliant to RoHS directive 2002/95/EC
Impervious to harmful environments - oil filled
For better performances, please contact us
Prototype quantities available in just 5 working days
or sooner. For more information, please contact
foil@vishaypg.com
APPLICATIONS
Metrology
Laboratory
Industrial
Measurement
FIGURE 1 - TRIMMING TO VALUES
(conceptual illustration)
TABLE 1 - TCR VS. RESISTANCE VALUE
RESISTANCE VALUE
()
TYPICAL TCR AND
MAX. SPREAD
(- 55 °C to + 125 °C, + 25 °C ref.)
(ppm/°C) (1)
100 to < 150K
± 0.2 ± 2
50 to < 100
± 0.2 ± 3
10 to < 50
± 0.2 ± 4
Interloop Capacitance
Reduction in Series
Note
(1) For lower TCR and for selected TCR tracking, please contact us
Mutual Inductance
Reduction due
to Opposing
Current in
Adjacent Lines
Current Path
Before Trimming
Current Path
After Trimming
Trimming Process
Removes this Material
from Shorting Strip Area
Changing Current Path
and Increasing
Resistance
Note: Foil shown in black, etched spaces in white
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63146
Revision: 26-Mar-10
For any questions, contact: foil@vishaypg.com
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1
VHP203 (Z-Foil)
Vishay Foil Resistors
TABLE 2 - MODEL SELECTION
MAXIMUM
WORKING
VOLTAGE (1)
RESISTANCE
RANGE
()
MODEL
NUMBER
POWER
RATING
at + 25 °C
VHP203
CONSTRUCTION
BRIEF
1.4
Oil-filled, tinned
copper leads, nickel
shell, kovar and
glass header
0.2 W
10 to 66K
66K to 150K
300
VHP203J
DIMENSIONS
AVERAGE
WEIGHT
(g)
0.3 W
INCHES
mm
W: 0.162 ± 0.020
L: 0.415 ± 0.020
H: 0.375 ± 0.020
LL: 1.000 ± 0.125
LS: 0.150 ± 0.010 (2)
ST: 0.095 max.
4.11 ± 0.51
10.54 ± 0.51
9.52 ± 0.51
25.4 ± 3.18
3.81 ± 0.25
2.41 max.
Note
• See next page for numbered footnotes
TABLE 3 - STANDARD RESISTANCE TOLERANCE
TIGHTEST ()
LOOSEST (%)
1K to 150K
500R to 1K
50R to 500R
30R to 50R
20R to 30R
10R to 20R
± 0.001
± 0.0025
± 0.005
± 0.01
± 0.02
± 0.05
FIGURE 2 - TYPICAL TCR CURVE Z-FOIL
FIGURE 3 - POWER DERATING CURVE
TCR Chord Slopes for Different Temperature Ranges
Percent of Rated Power
+ 500
+ 400
+ 300
+ 200
+ 100
ΔR
0
R
(ppm)
- 100
0.05 ppm/°C
- 200
- 0.1 ppm/°C
0.1 ppm/°C
- 300
0.14 ppm/°C
- 400
+ 100
+ 75
+ 50
+ 25
0
0.2 ppm/°C
- 0.16 ppm/°C
- 55 °C
- 50
- 25
- 500
0
+ 25 + 50 + 75 + 100 + 125 + 150 + 175
Ambient Temperature (°C)
- 55
- 25
0
+ 25
+ 60 + 75
+ 100 + 125
Ambient Temperature (°C)
FIGURE 4 - STANDARD IMPRINTING AND DIMENSIONS
Front View
L
H
VISHAY
XXXX
VHP203
Rear View
W
Resistance
Value Code
100R01
0.01%
XXXX
Model
Number
Tolerance
Serial No.
ST
Date Code
07
06
Year Week
LL
LS
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2
Lead Material
#22 AWG Round
Solder Coated Copper
For any questions, contact: foil@vishaypg.com
Document Number: 63146
Revision: 26-Mar-10
VHP203 (Z-Foil)
Vishay Foil Resistors
TABLE 4 - “H” SERIES SPECIFICATIONS
Stability (6)
Load life at 2000 h
± 0.002 % maximum R at 0.1 W per chip and at + 60 °C
Shelf life
± 2 ppm (0.0002 %) after at least 6 years
Current Noise
< 0.010 µV (RMS)/V of applied voltage (- 40 dB)
High Frequency Operation
Rise time
1.0 ns without ringing
Inductance (L) (3)
0.1 µH maximum; 0.08 µH typical
Capacitance (C)
1.0 pF maximum; 0.5 pF typical
Voltage Coefficient
< 0.1 ppm/V4)
Thermal EMF (5)
0.1 µV/°C maximum; 0.05 µV/°C typical; 1 µV/W maximum
Hermeticity
10-7 atmospheric cc/s maximum
Notes
(1)
Not to exceed power rating of resistor
(2)
0.200" (5.08 mm) lead spacing available - specify VHP203J
(3)
Inductance (L) due mainly to the leads
(4)
The resolution limit of existing test equipment (within measurement capability of the equipment, or “essentially zero”)
(5)
µV/°C relates to EMF due to lead temperature difference and µV/W due to power applied to the resistor
(6)
Load life R max. can be reduced through in-house oriented processes
TABLE 5 - ENVIRONMENTAL PERFORMANCE COMPARISON
MIL-PRF-55182
CHAR J
VHP203
MAXIMUM R
VHP203
TYPICAL R
Thermal shock, 5 x (- 55 °C to + 125 °C)
± 0.2 %
± 0.01 % (100 ppm)
± 0.002 % (20 ppm)
Short time overload, 6.25 x rated power, 5 s
± 0.2 %
± 0.01 % (100 ppm)
± 0.003 % (30 ppm)
± 25 ppm/°C
table 1
± 0.05 ppm/°C
Low temperature storage (24 h at - 65 °C)
± 0.15 %
± 0.01 % (100 ppm)
± 0.002 % (20 ppm)
Low temperature operation
(45 min, rated power at - 65 °C)
± 0.15 %
± 0.01 % (100 ppm)
± 0.002 % (20 ppm)
Terminal strength
± 0.2 %
± 0.01 % (100 ppm)
± 0.002 % (20 ppm)
± 0.15 %
± 0.01 % (100 ppm)
± 0.002 % (20 ppm)
Test Group I
Test Group II
Resistance temperature characteristics
Characteristic
Test Group III
DWV
Resistance to solder heat, 20 s at + 260 °C
± 0.1 %
± 0.01 % (100 ppm)
± 0.005 % (50 ppm)
Moisture resistance
± 0.4 %
± 0.005 % (50 ppm)
± 0.001 % (10 ppm)
Shock
± 0.2 %
± 0.01 % (100 ppm)
± 0.002 % (20 ppm)
Vibration
± 0.2 %
± 0.01 % (100 ppm)
± 0.002 % (20 ppm)
± 0.5 %
± 0.008 % (80 ppm)
± 0.002 % (20 ppm)
± 0.5 %
± 0.008 % (80 ppm)
± 0.002 % (20 ppm)
± 2.0 %
± 0.02 % (200 ppm)
± 0.005 % (50 ppm)
5 ppm/V
< 0.1 ppm/V
< 0.1 ppm/V
Test Group IV
Test Group V
Life test at 0.3 W at + 25 °C
2000 h
Test Group Va
Life test at 0.1 W at + 60 °C
Test Group VI
High temperature exposure (2000 h at + 125 °C)
Test Group VII
Voltage coefficient
Document Number: 63146
Revision: 26-Mar-10
For any questions, contact: foil@vishaypg.com
www.foilresistors.com
3
VHP203 (Z-Foil)
Vishay Foil Resistors
TABLE 6 - GLOBAL PART NUMBER INFORMATION
NEW GLOBAL PART NUMBER: Y6072120K500V9L (preferred part number format)
DENOTES PRECISION
R=
K = k
Y
Y
6
CHARACTERISTICS (1)
VALUE
0
7
2
1
2
0
0 = standard product, tin/lead termination
1 = with plastic sleeve, tin/lead termination
9 = standard product, lead (Pb)-free termination
19 = with plastic sleeve, lead (Pb)-free termination
Other = custom
K
5
0
0
V
9
L
PRODUCT CODE
RESISTANCE TOLERANCE
PACKAGING
6072 = VHP203
6073 = VHP203J
S = ± 0.001 %
U = ± 0.002 %
X = ± 0.0025 %
V = ± 0.005 %
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 Y6072 120K500 V 9 L:
TYPE: VHP203
VALUE: 120.5 k
ABSOLUTE TOLERANCE: ± 0.005 %
TERMINATION: lead (Pb)-free
PACKAGING: bulk pack
HISTORICAL PART NUMBER: VHP203T 120K50 V B (will continue to be used)
VHP203
T
120K50
V
B
PACKAGING
B = bulk pack
MODEL
TERMINATION
PLASTIC SLEEVE
OHMIC VALUE
TOLERANCE
VHP203
VHP203J
T = lead (Pb)-free
None = tin/lead
P = plastic sleeve
None = standard
120K50 = 120.5 k
S = ± 0.001 %
U = ± 0.002 %
X = ± 0.0025 %
V = ± 0.005 %
T = ± 0.01 %
Q = ± 0.02 %
A = ± 0.05 %
B = ± 0.1 %
C = ± 0.25 %
D = ± 0.5 %
F = ± 1.0 %
Note
(1)
For non-standard requests, please contact application engineering.
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For any questions, contact: foil@vishaypg.com
Document Number: 63146
Revision: 26-Mar-10
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Vishay Precision Group, Inc.
Disclaimer
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any other disclosure relating to any product.
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not limited to, the warranty expressed therein.
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Information provided in datasheets and/or specifications may vary from actual results in different applications and
performance may vary over time. Statements regarding the suitability of products for certain types of applications
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Copyright Vishay Precision Group, Inc., 2014. All rights reserved.
Document No.: 63999
Revision: 15-Jul-2014
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