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
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 µV
RMS
/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
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.
APPLICATIONS
Metrology
Laboratory
Industrial
Measurement
FIGURE 1 - TRIMMING TO VALUES
(conceptual illustration)
TABLE 1 - TCR VS. RESISTANCE VALUE
RESISTANCE VALUE
()
100 to < 150K
50 to < 100
10 to < 50
TYPICAL TCR AND
MAX. SPREAD
(- 55 °C to + 125 °C, + 25 °C ref.)
(ppm/°C)
(1)
± 0.2 ± 2
± 0.2 ± 3
± 0.2 ± 4
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
Interloop Capacitance
Reduction in Series
Note
(1)
For lower TCR and for selected TCR tracking, please contact us
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
MODEL
NUMBER
RESISTANCE
RANGE
()
MAXIMUM
WORKING
VOLTAGE
(1)
POWER
RATING
at + 25 °C
0.2 W
10 to 66K
66K to 150K
VHP203J
Note
• See next page for numbered footnotes
300
0.3 W
1.4
AVERAGE
WEIGHT
(g)
CONSTRUCTION
BRIEF
DIMENSIONS
INCHES
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.
mm
4.11 ± 0.51
10.54 ± 0.51
9.52 ± 0.51
25.4 ± 3.18
3.81 ± 0.25
2.41 max.
VHP203
Oil-filled, tinned
copper leads, nickel
shell, kovar and
glass header
TABLE 3 - STANDARD RESISTANCE TOLERANCE
TIGHTEST ()
1K to 150K
500R to 1K
50R to 500R
30R to 50R
20R to 30R
10R to 20R
LOOSEST (%)
± 0.001
± 0.0025
± 0.005
± 0.01
± 0.02
± 0.05
FIGURE 2 - TYPICAL TCR CURVE Z-FOIL
TCR Chord Slopes for Different Temperature Ranges
+ 500
+ 400
+ 300
+ 200
+ 100
ΔR
0
R
(ppm)
- 100
- 200
- 300
- 400
- 500
- 55
- 25
0
+ 25
+ 60 + 75
+ 100 + 125
- 0.16 ppm/°C
FIGURE 3 - POWER DERATING CURVE
Percent of Rated Power
+ 100
+ 75
+ 50
+ 25
0
- 55 °C
0.05 ppm/°C
- 0.1 ppm/°C
0.1 ppm/°C
0.14 ppm/°C
0.2 ppm/°C
- 50
- 25
0
+ 25 + 50 + 75 + 100 + 125 + 150 + 175
Ambient Temperature (°C)
Ambient Temperature (°C)
FIGURE 4 - STANDARD IMPRINTING AND DIMENSIONS
Front View
L
VISHAY
XXXX
VHP203
Rear View
W
100R01
0.01%
XXXX
ST
Date Code
07
06
Year
Week
LS
LL
Lead Material
#22 AWG Round
Solder Coated Copper
Resistance
Value
Code
Tolerance
Serial
No.
H
Model
Number
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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
Shelf life
Current Noise
High Frequency Operation
Rise time
Inductance (L)
(3)
Capacitance (C)
Voltage Coefficient
Thermal EMF
(5)
Hermeticity
Notes
(1)
(2)
(3)
(4)
(5)
(6)
± 0.002 % maximum
R
at 0.1 W per chip and at + 60 °C
± 2 ppm (0.0002 %) after at least 6 years
< 0.010 µV (RMS)/V of applied voltage (- 40 dB)
1.0 ns without ringing
0.1 µH maximum; 0.08 µH typical
1.0 pF maximum; 0.5 pF typical
< 0.1 ppm/V
4)
0.1 µV/°C maximum; 0.05 µV/°C typical; 1 µV/W maximum
10
-7
atmospheric cc/s maximum
Not to exceed power rating of resistor
0.200" (5.08 mm) lead spacing available - specify VHP203J
Inductance (L) due mainly to the leads
The resolution limit of existing test equipment (within measurement capability of the equipment, or “essentially zero”)
µV/°C relates to EMF due to lead temperature difference and µV/W due to power applied to the resistor
Load life
R
max. can be reduced through in-house oriented processes
TABLE 5 - ENVIRONMENTAL PERFORMANCE COMPARISON
MIL-PRF-55182
CHAR J
Test Group I
Thermal shock, 5 x (- 55 °C to + 125 °C)
Short time overload, 6.25 x rated power, 5 s
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, 20 s at + 260 °C
Moisture resistance
Test Group IV
Shock
Vibration
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
5 ppm/V
< 0.1 ppm/V
< 0.1 ppm/V
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± 2.0 %
± 0.02 % (200 ppm)
± 0.005 % (50 ppm)
± 0.5 %
± 0.008 % (80 ppm)
± 0.002 % (20 ppm)
± 0.5 %
± 0.008 % (80 ppm)
± 0.002 % (20 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)
± 0.005 % (50 ppm)
± 0.002 % (20 ppm)
± 0.005 % (50 ppm)
± 0.001 % (10 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
table 1
± 0.05 ppm/°C
± 0.2 %
± 0.2 %
± 0.01 % (100 ppm)
± 0.01 % (100 ppm)
± 0.002 % (20 ppm)
± 0.003 % (30 ppm)
VHP203
MAXIMUM
R
VHP203
TYPICAL
R
For any questions, contact:
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VHP203 (Z-Foil)
Vishay Foil Resistors
TABLE 6 - GLOBAL PART NUMBER INFORMATION
NEW GLOBAL PART NUMBER: Y6072120K500V9L (preferred part number format)
DENOTES PRECISION
Y
VALUE
R
=
K
= k
CHARACTERISTICS
(1)
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
Y
6
0
7
2
1
2
0
K
5
0
0
V
9
L
PRODUCT CODE
6072
= VHP203
6073
= VHP203J
RESISTANCE TOLERANCE
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 %
PACKAGING
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
MODEL
VHP203
VHP203J
T
TERMINATION
T
= lead (Pb)-free
None
= tin/lead
PLASTIC SLEEVE
P
= plastic sleeve
None
= standard
120K50
OHMIC VALUE
120K50
= 120.5 k
V
TOLERANCE
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 %
B
PACKAGING
B
= bulk pack
Note
(1)
For non-standard requests, please contact application engineering.
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Document Number: 63146
Revision: 26-Mar-10
Legal Disclaimer Notice
Vishay Precision Group, Inc.
Disclaimer
ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE.
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(collectively, “VPG”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in
any other disclosure relating to any product.
The product specifications do not expand or otherwise modify VPG’s terms and conditions of purchase, including but
not limited to, the warranty expressed therein.
VPG makes no warranty, representation or guarantee other than as set forth in the terms and conditions of purchase.
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application or use of any product, (ii) any and all liability, including without limitation special, consequential or
incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular purpose,
non-infringement and merchantability.
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
are based on VPG’s knowledge of typical requirements that are often placed on VPG products. It is the customer’s
responsibility to validate that a particular product with the properties described in the product specification is suitable for
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Copyright Vishay Precision Group, Inc., 2014. All rights reserved.
Document No.: 63999
Revision: 15-Jul-2014
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