VPR220Z (Z-Foil)
Vishay Foil Resistors
Ultra High Precision Z-Foil Power Resistor in
TO-220 Configuration with TCR of ± 0.05 ppm/°C,
Tolerance to ± 0.01 % and Power Rating to 8 W
FEATURES
•
Temperature coefficient of resistance (TCR):
± 0.05 ppm/°C typical (0 °C to + 60 °C)
± 0.2 ppm/°C typical (- 55 °C to + 125 °C,
+ 25 °C ref.)
•
Tolerance: to ± 0.01 %
•
Power coefficient of resistance (PCR) “ΔR due to self
heating”: 4 ppm/W typical
•
Electrostatic discharge (ESD) above 25 000 V
Vishay Foil Resistors manufacture any resistance value
within the given resistance range (e.g. 10
Ω
or
10.1234
Ω)
without influencing cost or lead time
•
Load life stability: ± 0.005 % (25 °C, 2000 h at rated power)
•
Resistance range: 5
Ω
to 10 kΩ (Any value available within
resistance range e.g. 1K2345)
•
Power rating: 8 W chassis mounted (per MIL-PRF-39009)
Model VPR220Z, made from Vishay Bulk Metal
®
Z-foil, offers
very low TCR, high stability, tight tolerance, low PCR and fast
response time in a small molded resistor.
The Z-foil technology
provides a significant reduction of the
resistive components sensitivity to ambient temperature
variations and applied power changes. Designers now can
guarantee a high degree of stability and accuracy in fixed
resistor applications using solutions based on Vishay’s
revolutionary Z-foil technology.
Our application engineering department is available to
advise and make recommendations. For non-standard
technical requirements and special applications, please
contact us.
•
Thermal stabilization < 1 s
•
Rise time: 1 ns without ringing
•
Optimized for military and space applications according to
EEE-INST-002 screening and MIL-PRF 39009
•
Non inductive, non capacitive design
•
Current noise: < - 40 dB
•
Voltage coefficient: < 0.1 ppm/V
•
Non inductive: < 0.08 µH
•
Non hot spot design
•
Thermal EMF: 0.05 µV/°C typical
•
Terminal finishes available: lead (Pb)-free, tin/lead alloy
•
Also available in a surface mount version, the VPR220SZ
•
Prototype samples available from 72 h. For more
information, please contact foil@vishay.com
•
For higher performances please contact us
TABLE 1 - VPR220Z
(- 55 °C to + 125 °C, + 25 °C Ref.)
RESISTANCE
RANGE (Ω)
50 to 10K
25 to < 50
10 to < 25
5 to < 10
Weight = 1 g maximum
TIGHTEST
RESISTANCE
TOLERANCE
± 0.01 %
± 0.02 %
± 0.2 ± 2.3
± 0.05 %
± 0.1 %
TYPICAL TCR AND
MAX. SPREAD
(ppm/°C)
FIGURE 1 - POWER DERATING CURVE
+ 100
- 55 °C
Percent of Rated Power
+ 75
+ 50
+ 25
0
- 50
- 25
0
+ 25
+ 50
+ 75
+ 100
+ 125
+ 150
Ambient Temperature (°C)
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63064
Revision: 22-Sep-08
For any questions, contact: foil@vishay.com
www.vishay.com
1
VPR220Z (Z-Foil)
Vishay Foil Resistors
Ultra High Precision Z-Foil Power Resistor in
TO-220 Configuration with TCR of ± 0.05 ppm/°C,
Tolerance to ± 0.01 % and Power Rating to 8 W
Notes
1. Whichever is lower.
2. Heat sink chassis dimensions and requirements per
MIL-PRF-39009:
DIMENSION
L
W
H
1 ns
0.1 µH maximum: 0.03 µH typical
1.0 pF maximum: 0.5 pF typical
< 0.1 ppm/V
- 55 °C to + 150 °C
300 V. Not to exceed power
rating.
0.15 µV/°C maximum
(lead effect)
T
INCHES
6.00
4.00
2.00
0.04
mm
152.4
101.6
50.8
1.0
TABLE 2 - SPECIFICATIONS
Load Life Stability
at 2000 h
± 0.05 % max.
ΔR
under full
rated power at + 25 °C
8 W or 3 A
1)
on heat sink
2)
1.5 Wor 3 A
1)
in free air
Further derating not
necessary.
< 0.010 µV (rms)/V of applied
voltage (- 40 dB)
Power Rating at + 25 °C
Current Noise
High Frequency Operation
Rise time
Inductance
3)
(L)
Capacitance (C)
Voltage Coefficient
4)
Operating Temperature
Range
Maximum Working
Voltage
Thermal EMF
5)
3. Inductance (L) due mainly to the leads.
4. The resolution limit of existing test equipment (within the
measurement capability of the equipment, or “essentially zero”).
5. µV/°C relates to EMF due to lead temperature difference.
FIGURE 2 - TRIMMING TO VALUES
(conceptual illustration)
FIGURE 3 - TYPICAL TCR CURVE Z-FOIL
+ 500
+ 400
+ 300
Interloop Capacitance
Reduction in Series
Current Path
Before Trimming
Current Path
After Trimming
Trimming Process
Removes this Material
from Shorting Strip Area
Changing Current Path
and Increasing
Resistance
+ 200
+ 100
ΔR
0
R
(ppm)
- 100
- 200
- 300
- 400
- 500
- 55
- 25
0
+ 25
+ 60 + 75
+ 100 + 125
- 0.16 ppm/°C
Mutual Inductance
Reduction due
to Change in
Current Direction
0.05 ppm/°C
- 0.1 ppm/°C
0.1 ppm/°C
0.14 ppm/°C
0.2 ppm/°C
Note:
Foil shown in
black,
etched spaces in
white
Ambient Temperature (°C)
FIGURE 4 - VPR220Z TESTS:
5R, 10 UNITS
+ 500
+ 400
+ 300
+ 200
FIGURE 5 - VPR220Z LOAD LIFE, 10 kΩ
P
NOM.
, 25 °C, 20 UNITS
+ 500
+ 400
+ 300
+ 200
ΔR/R
(ppm)
ΔR/R
(ppm)
+ 100
0
- 100
- 200
- 300
- 400
- 500
Initial RC
Short Time
Low
Overload
Temp.
Operation
Post
Drying
Moisture Insulation Initial RC
Resistance Resistance
Terminal
Strength
+ 100
0
- 100
- 200
- 300
- 400
- 500
0
500
1000
1500
2000
Test Type
Time (h)
(All tests performed on same resistors in succession)
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For any questions, contact: foil@vishay.com
Document Number: 63064
Revision: 22-Sep-08
VPR220Z (Z-Foil)
Ultra High Precision Z-Foil Power Resistor in
Vishay Foil Resistors
TO-220 Configuration with TCR of ± 0.05 ppm/°C,
Tolerance to ± 0.01 % and Power Rating to 8 W
FIGURE 6 - VPR220Z FORMING DIMENSIONS
in inches (millimeters)
0.400 ± 0.010
(10.16 ± 0.25)
0.245 ± 0.010
(6.22 ± 0.25)
VISHAY
VPR220Z
1K0 1
%
0101
0.150 ± 0.008
(3.81 ± 0.2)
0.115 ± 0.005
(2.92 ± 0.13)
0.050 ± 0.005
(1.27 ± 0.13)
0.615 Max.
(15.62)
0.141 ± 0.005 Dia.
(3.58 ± 0.13)
0.050 ± 0.005
(1.27 ± 0.13)
0.200 ± 0.030
(5.08 ± 0.76)
0.540 ± 0.040
(13.72 ± 1.02)
0.015 ± 0.002
(0.38 ± 0.05)
0.030 ± 0.002
(0.76 ± 0.05)
0.200 ± 0.005
(5.08 ± 0.13)
0.078 ± 0.005
(1.98 ± 0.13)
TABLE 3 - GLOBAL PART NUMBER INFORMATION
NEW GLOBAL PART NUMBER: Y1622350R650Q9L (preferred part number format)
DENOTES PRECISION
Y
VALUE
R
=
Ω
K
= kΩ
AER*
0
= standard
9
= lead (Pb)-free
1 - 999
= custom
Y
1
6
2
2
3
5
0
R
6
5
0
Q
9
L
PRODUCT CODE
1622
= VPR220Z
RESISTANCE TOLERANCE
T
= ± 0.01 %
Q
= ± 0.02 %
A
= ± 0.05 %
B
= ± 0.1 %
C
= ± 0.25 %
D
= ± 0.5 %
F
= ± 1.0 %
G
= ± 2.0 %
J
= ± 5.0 %
PACKAGING
L
= bulk pack
FOR EXAMPLE: ABOVE GLOBAL ORDER Y1622 350R650 Q 9 L:
TYPE: VPR220Z
VALUE: 350.65
Ω
ABSOLUTE TOLERANCE: ± 0.02 %
TERMINATION: lead (Pb)-free
PACKAGING: bulk pack
HISTORICAL PART NUMBER: VPR220ZT 350R65 Q B (will continue to be used)
VPR220Z
MODEL
VPR220Z
T
TERMINATION
T
= lead (Pb)-free
None = tin/lead alloy
350R65
OHMIC VALUE
350.65
Ω
Q
RESISTANCE
TOLERANCE
T
= ± 0.01 %
Q
= ± 0.02 %
A
= ± 0.05 %
B
= ± 0.1 %
C
= ± 0.25 %
D
= ± 0.5 %
F
= ± 1.0 %
G
= ± 2.0 %
J
= ± 5.0 %
B
PACKAGING
B
= bulk pack
Note
* For non-standard requests, please contact application engineering.
Document Number: 63064
Revision: 22-Sep-08
For any questions, contact: foil@vishay.com
www.vishay.com
3
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay 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’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.
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 products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay 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.
Document Number: 91000
Revision: 18-Jul-08
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