VHP100, VHP101, VHP102, VHP103
Ultra-High Precision Hermetically Sealed Bulk Metal
®
Foil Resistor
Ultra-High Precision Hermetically Sealed Bulk Metal® Foil Resistor
with Zero TCR, no Humidity Effect and 0.005% Tolerance within a
Unique Construction, Minimizing the Effects of Stress Factors
FEATURES
• Essentially zero TCR
• Absolute resistance change
(window):
VHP100 <60 ppm (–55°C to +125°C)
VHP101 <10 ppm (+15°C to +45°C)
• Tolerance: to ±0.005% (50 ppm) –
[(available to ±0.001% (10 ppm)]
• No humidity effect: hermetically sealed against
moisture
• Load life stability: ±50 ppm typical for 2,000 h,
70°C at 0.3 W
• Resistance range: 100 Ω to 150 kΩ (higher or lower
values available on request)
• Bulk Metal
®
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)
• Electrostatic discharge (ESD) up to 25,000 V
• Non inductive, non capacitive design
• Rise time: 1 ns effectively no ringing
• Thermal stabilization <1 s
• 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
• Inductance: <0.08 µH
• Non hot spot design
• Hermeticity: 10
–7
atmospheric cc/s max.
• Terminal finish: lead (Pb)-free; tin/lead alloy
• Oil filled as standard,
air filled available upon request
• Load-life stability can be considerably improved
through in-house oriented tests
The VHP10x represents an essentially Zero Temperature
Coefficient Resistor type of resistor. This oil filled
hermetically sealed device makes unique use of foil on
ceramic in such a way that self cancelling responses
to temperature are produced by combining equal and
opposite effects. This product is sold only in hermetic
packages because applications requiring this level of
temperature stability require humidity stability as well.
The value of the hermetic enclosure over the molded part
is in the long term performance. The hermetic sealing
prevents the ingress of moisture and oxygen, while the oil
acts as a thermal conductor.
TCR WINDOW DEFINITION
The TCR of the VHP10x is so small that an additional
definition –
window,
has been introduced. The window
definition requires that the absolute resistance remain
within the stated window over the temperature range
specified. The resistance of the VHP10x resistor
stays within a 60 ppm window over the entire military
temperature range of –55°C to +125°C (figures 1 and 3).
A window of 10 ppm is available for the laboratory
instrument range (+15°C to +45°C);
see figure 4 – type VHP101.
INTRODUCTION
The VHP10x type represents a metrology breakthrough.
A new construction concept combined with special
treatments make this resistor the first choice in the most
demanding instrumentation and laboratory applications.
The ability of the VHP10x to minimize the changes in
resistance value when the resistor is subjected to load
variations and thermal stresses, ensure the ultra high
performances for the tight metrology specifications.
The total error budget of 2 ppm drift and the high speed
recovery represent an improvement of almost an order of
magnitude on the earlier model.
TCR TRACKING
Tracking of the VHP10x resistor is also vastly superior
to conventional precision resistors. Typical ±5 ppm/°C
precision resistors have a worst-case tracking of 10 ppm/°C
(wirewounds, thick film, thin film) or a difference between
resistors of 1000 ppm (10 ppm/°C x 100°C) when
temperature changes from +25°C to +125°C. For a
3 ppm/°C tracking, as with S102C, the difference will be
300 ppm (3 ppm/°C × 100°C) for the same temperature
range. The VHP10x resistors will track to 60 ppm from
–55°C to +125°C, a five-fold improvement over the
S102C resistor.
Note
* This datasheet provides information about parts that are RoHS-compliant and/or parts that are non-RoHS-compliant. For example,
parts with lead (Pb) terminations are not RoHS compliant. Please see the information/tables in this datasheet for details.
4085-EN
Rev 09-Mar-2021
For any questions, contact
foil@vpgsensors.com
www.vishayfoilresistors.com
1
VHP100, VHP101, VHP102, VHP103
POST MANUFACTURING OPERATIONS
ENHANCE THE ALREADY GREATER
STABILITY OF FOIL RESISTORS
These PMO operations are uniquely applicable to
resistors made of resistive foil and they take the already
superior stability of foil devices one step further. The PMO
operations described are not applicable to thick film, thin
film, or wire. They constitute an exercising of the resin that
bonds the foil to the substrate.
The exercises that are employed are (1) temperature
cycling (2) short time overload, and (3) accelerated
load life.
ACCELERATED LOAD
The standard load-life curve of a foil resistor exhibits
a change in the beginning and not much change after
the first 100 h. This knee in the load-life curve can be
removed so that the resistor is now always on the flat
part of the curve by employing the PMO exercise of
accelerated loading.
How much acceleration is a function of the application
and should be worked out between our applications
engineering department and your design team.
These same operations when applied to resistors of thick
film, thin film, and wire have vastly different consequences
and are applicable to foil only. They are an enhancement
to foil performance but can drive other devices out of
tolerance or open. The failure mechanisms in these other
devises are too numerous to discuss here but suffice it
to say, foil is the least affected by these PMO operations
and they should be considered when the level of stability
required is beyond the published limits for
standard product.
TEMPERATURE CYCLING
This exercise is done initially in the chip stage of all
production and will eliminate any fallout in the PMO
cycling. The cycling exercises the bonding resin and
relaxes the foil without reducing the bonding strength.
A small reduction in resistance is tolerable during this
PMO operation.
SHORT TIME OVERLOAD
The STO operation is performed on all resistors during
manufacturing. Its function is to eliminate sports (if any)
so this PMO operation is further assurance.
Figure 1 – A Typical VHP10x Resistance
Temperature Curve
Deviation ppm
Figure 3 – Typical Curves Within the 60 ppm
Window, VHP10x TCR for Mil Range
Deviation ppm
(–55°C to + 125°C): Typical TCR = 0.6 ppm/°C, Ref. +25°C
60 ppm
Window
–55
–25
0
+25
+50
+75
+100
+125
60 ppm
Window
– 55
– 25
0
+25
+50
+75
+100
+125
Temperature (°C)
Temperature (°C)
Figure 2 – Power Derating Curve
Percent of Rated Power
+100%
+75%
+50%
+25%
0
– 75
– 50
– 25
0
+25
+50
+75 +100 +125 +150 +175 +200
–
55 °C
+70°C Rated Power
Figure 4 – Typical Curves Within 10 ppm
Window, VHP10x Laboratory Instrument
Range
Deviation ppm
(+15°C to +45°C): Typical TCR = 0.3 ppm/°C, Ref. +25°C
10 ppm
Window
+15
+20
+25
+30
+35
+40
+45
+50
Ambient Temperature (°C)
Temperature (°C)
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4085-EN
Rev 09-Mar-2021
VHP100, VHP101, VHP102, VHP103
Figure 5 – Standard Printing
Front View
L
VFR
XXXX
VHP100
Rear View
W
Model
Number
ST
E
100R01
0.01%
XXXX
Resistance
Value Code
Tolerance
Serial No.
LL
Table 1 – VHP10x Series Dimensions
INCHES
VHP10x
W
L
H
LL
LS
(1)
ST
E
0.185±0.020
0.435±0.020
0.430±0.020
1.000±0.125
0.150±0.010
0.100 maximum
0.070 maximum
mm
4.70±0.51
11.05±0.51
10.92±0.51
25.4±3.18
3.81±0.25
2.54 maximum
1.78 maximum
H
Date Code
20
10
Year Week
LS
Lead Material #22 AWG
(0.025 Dia) Solder Coated Copper
Note
(1)
For 0.200 lead spacing, specify
VHP102 (60 ppm)
or
VHP103 (10 ppm).
TOLERANCE
±1.0%
±0.1%
±0.01%
±0.005%
RESISTANCE SPECIFIED IN
SIGNIFICANT DIGITS
3
4
5
6
Table 2 – VHP10x Specifications
PARAMETER
Resistance Range
Tolerance at +25°C
Power
Load Life Stability
(1)
(for 2000 h)
Shelf-Life Stability
Thermal EMF
Due to temperature difference between leads
Due to self-heating at 0.1 W
High Frequency Operation
Rise/decay time
Inductance (L)
Capacitance (C)
Maximum Working Voltage
Voltage Coefficient
Current Noise
Hermeticity
VALUE
100 Ω to 150 kΩ
±0.005% to ±1.0%
0.3 W at +70°C (see figure 2)
0.3 W at +70°C; ±0.015% (150 ppm) maximum ΔR
0.15 W at +125°C; ±0.015% (150 ppm) maximum ΔR
±0.0005% (5 ppm) Maximum ΔR after 1 yr;
±0.0010% (10 ppm) Maximum ΔR after 3 yrs
0.05 µV/°C
0 to 1 µV
1.0 ns for 1 kΩ without ringing
0.1 µH maximum, 0.08 µH typical
1.0 pF maximum, 0.5 pF typical
300 V
<0.1 ppm/V
<0.010 µV (RMS)/V (–40 dB)
10
–7
atmospheric cc/s maximum
Note
(1)
Load/life stability is considerably improved by reducing the temperature, power, or through in-house oriented tests.
4085-EN
Rev 09-Mar-2021
For any questions, contact
foil@vpgsensors.com
www.vishayfoilresistors.com
3
VHP100, VHP101, VHP102, VHP103
Table 3 – Global Part Number Information
(2)
NEW GLOBAL PART NUMBER: Y007880K2500A9L (preferred part number format)
DENOTES PRECISION
Y
VALUE
R
=
K
=k
CHARACTERISTICS
0
= standard
9
= lead (Pb)-free
1 to 999
= custom
Y
0
0
(1)
7
8
8
0
K
2
5
0
0
A
9
L
PRODUCT CODE
0078
= VHP100
4078
= VHP101
5078
= VHP102
6078
= VHP103
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
FOR EXAMPLE: ABOVE GLOBAL ORDER Y0078 80K2500 A 9 L:
TYPE: VHP100
VALUE: 80.25 k
ABSOLUTE TOLERANCE: ±0.05%
TERMINATION: lead (Pb)-free
PACKAGING: bulk
VHP100
VHP100
VHP101
VHP102
VHP103
MODEL
T
T
= lead (Pb)-free
None = tin/lead alloy
TERMINATION
HISTORICAL PART NUMBER: VHP100T 80K250 A B (will continue to be used)
80K250
RESISTANCE VALUE
80.25 k
A
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
B
PACKAGING
B
= bulk
Note
(1)
For 0.200 lead spacing, specify
VHP102 (60 ppm)
or
VHP103 (10 ppm).
(2)
For non-standard requests, please contact
foil@vpgsensors.com
.
www.vishayfoilresistors.com
4
For any questions, contact
foil@vpgsensors.com
4085-EN
Rev 09-Mar-2021
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Vishay Precision Group, Inc.
Disclaimer
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Copyright Vishay Precision Group, Inc., 2014. All rights reserved.
Document No.: 63999
Revision: 15-Jul-2014
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