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Datasheet> All Categories > Passive components> The resistor> Z20328R700AB
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Z20328R700AB

Description
Fixed Resistor, Metal Foil, 0.6W, 28.7ohm, 300V, 0.05% +/-Tol, -.2,.2ppm/Cel, 3011,
CategoryPassive components    The resistor   
File Size115KB，6 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Environmental Compliance
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Z20328R700AB Overview

Fixed Resistor, Metal Foil, 0.6W, 28.7ohm, 300V, 0.05% +/-Tol, -.2,.2ppm/Cel, 3011,

Z20328R700AB Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
Objectid944173402
Reach Compliance Codeunknown
ECCN codeEAR99
structureRectangular
Lead diameter0.644 mm
Lead length25.4 mm
lead spacing3.81 mm
Number of terminals2
Maximum operating temperature175 °C
Minimum operating temperature-55 °C
Package height8.28 mm
Package length7.62 mm
Package shapeRECTANGULAR PACKAGE
Package formRadial
Package width2.67 mm
method of packingBulk
Rated power dissipation(P)0.6 W
resistance28.7 Ω
Resistor typeFIXED RESISTOR
seriesZ203
size code3011
technologyMETAL FOIL
Temperature Coefficient0.2 ppm/°C
Tolerance0.05%
Operating Voltage300 V

Z20328R700AB Preview

Z203 (Z1-Foil)
Vishay Foil Resistors
Ultra High Precision Z1-Foil Resistor for Metrology and Laboratory
with TCR of 0.5 ppm/°C Maximum, Tolerance to 0.005 % (50 ppm)
and Load Life Stability of 0.005 % (50 ppm), + 70 °C for 10 000 h
INDUSTRY BREAKTHROUGH
FEATURES
•
Temperature coefficient of resistance (TCR):
± 0.5 ppm/°C maximum (+ 25 °C to + 125 °C)
•
Power coefficient of resistance “ΔR due to self
heating”: ± 5 ppm at rated power
•
Rated power: 0.6 W at 70 °C
0.3 W at 125 °C
•
Resistance tolerance: to ± 0.005 % (50 ppm)
•
Load life stability: to ± 0.005 % (50 ppm) at 70 °C,
10 000 h at 0.15 W
•
Resistance range: 10
Ω
to 100 kΩ
•
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)
•
Electrostatic discharge (ESD) up to 25 000 V
•
Non-inductive, non-capacitive design
•
Rise time: 1 ns, effectively no ringing
•
Current noise: 0.010 µV
RMS
/V of applied voltage (< - 40 dB)
•
Thermal EMF: 0.1 µV/°C max.
•
Thermal stabilization time < 1 s (nominal value achieved
within 10 ppm of steady state value)
•
Voltage coefficient: < 0.1 ppm/V
•
Non-inductive: 0.08 µH
•
Terminal finish: lead (Pb)-free or tin/lead alloy
•
Maximum working voltage: 300 V
•
Drop in replacement for S102C/K
•
Matched sets are available per request
•
Prototype quantities available in just 5 working days
or sooner. For more information, please contact
foil@vishay.com
•
For better performances please contact us
•
Compliant to RoHS directive 2002/95/EC
Z203 resistors are not restricted to standard values or
minimum order quantity, and can be supplied from 1 unit
with as-required values (e.g. 9.997 kΩ vs. 10 kΩ) at no
extra cost or delivery time.
Our application engineering department is available to
advise and to make recommendations. For non-standard
technical requirements and special applications, please
contact us.
FIGURE 1 - Z203 ON A PC BOARD
A
Connection
Distant
from
Solder
Point
(1)
PCB
A
A-A
Note
(1)
The leads on the Z203 connect to the Bulk Metal
®
Foil resistive
element at the top of the package using solder-free, all welded
construction. This high-reliability enhancement protects the
terminations from initial board-assembly and subsequent board
flexation stresses. The welded construction completely eliminates
the possibility of latent failures due to solder reflow and
solder-starved internal connections.
FIGURE 2 - POWER DERATING CURVE
200
%
- 55 °C
+ 70 °C
TABLE 1 - TOLERANCE AND TCR VS.
RESISTANCE
STANDARD
TOLERANCE
(%)
TYP. TCR
AND MAX.
SPREAD
(ppm/°C)
(+ 25 °C to
+ 125 °C)
± 0.2 ± 0.3
± 0.2 ± 0.4
± 0.2 ± 0.6
± 0.2 ± 0.8
± 0.2 ± 1.0
TYP. TCR
AND MAX.
SPREAD
(ppm/°C)
(- 55 °C to
+ 25 °C)
± 0.2 ± 1.8
± 0.2 ± 2.0
± 0.2 ± 2.3
± 0.2 ± 2.6
± 0.2 ± 2.8
Percent of Rated Power at + 125 °C
Double Rated Power
175
%
150
%
125
%
100
%
75
%
50
%
25
%
0
- 75 - 50 - 25
VALUE
Rated Power
Recommended
operation for
< 150 ppm
ΔR
after 2000 h
load life
100
Ω
to 100 kΩ
80
Ω
to < 100
Ω
50
Ω
to < 80
Ω
25
Ω
to < 50
Ω
± 0.005
± 0.005
± 0.01
± 0.01
± 0.02
0
+ 25 + 50 + 75 + 100 + 125 + 150 + 175 + 200
Ambient Temperature (°C)
10
Ω
to < 25
Ω
* Pb containing terminations are RoHS compliant, exemptions may apply
Document Number: 63186
Revision: 19-Nov-09
For any questions, contact:
foil@vishay.com
www.vishay.com
1
Z203 (Z1-Foil)
Vishay Foil Resistors
ABOUT Z203
Vishay’s new generation of metrology ultra-high precision
Z-Foil resistor features new orders of accuracy, stability and
fast thermal stabilization in sizes small enough for
permanent assembly in operational equipment. This is,
place metrology-grade resistors right into the equipment as
on-board reference standards. Vishay’s Z203 unit offers an
immediate answer to many resistor applications currently
believed unsolvable, and opens entirely new areas of design
where the use of resistors had not been considered.
Applications include:
•
Secondary standards
•
Feedback devices for operational amplifiers
•
Precision voltage dividers
•
Meter multipliers
•
Precision bridge resistors
•
Decade voltage dividers
The performance of Vishay’s Z203 resistor cannot be
equaled by any conventional resistor technologies, or by
bulky units now used as standards. As shown by the
specifications on table 2 and 3, there is no compromise
between precision and speed (as in wirewound units) or
between speed and the combination of excellent precision,
stability and TCR (as with conventional deposited films).
The Z203 is the result of a unique concept in resistor
manufacturing. A proprietary new generation of the Bulk
Metal
®
Z-Foil element with known and controllable
properties is applied to a special ceramic substrate. A
resistive pattern is then photoetched by an ultra-fine
technique developed by Vishay. The device’s etched planar
construction results in the extremely low and reproducible
reactance needed for high-frequency and pulse
applications.
Z203 is uniquely enhanced by post manufacturing
operations (PMO) exercised after the manufacturing cycle
has been completed. Some of these exercises are a
standard part of the manufacturing cycle and are only
repeated during the PMO cycle to gain added stability or
confidence in the product. The foil resistor load-life curve
shows an increase in resistance from the first load
application, but flattens out to no further change after the
first few hundred hours of loading. This knee in the load-life
curve is reduced significantly by a special accelerated
load-life operation performed by Vishay, resulting in a flat
response immediately after installation. Other resistive
devices show a continuous change when subjected to these
same stresses and are driven out of tolerance.
The optional PMO for this product includes the combination
of thermal shock, power shot and special burn-in.
FIGURE 3 - TRIMMING TO VALUES
(conceptual illustration)
FIGURE 4 - TYPICAL RESISTANCE/
TEMPERATURE CURVE Z-FOIL
+ 500
Interloop
Capacitance
Reduction
in Series
Mutual
Inductance
Reduction due
to Opposing
Current in
Adjacent Lines
+ 400
Current Path
Before Trimming
Current Path
After Trimming
Trimming Process
Removes this Material
from Shorting Strip Area
Changing Current Path
and Increasing Resistance
+ 300
+ 200
+ 100
ΔR
0
R
(ppm)
- 100
- 200
- 300
- 400
- 500
0.05 ppm/°C
0.1 ppm/°C
0.14 ppm/°C
0.2 ppm/°C
+ 25
+ 60
+ 75
+ 100
+ 125
Note:
Foil shown in
black,
etched spaces in
white
Ambient Temperature (°C)
www.vishay.com
2
For any questions, contact:
foil@vishay.com
Document Number: 63186
Revision: 19-Nov-09
Z203 (Z1-Foil)
Vishay Foil Resistors
FIGURE 5 - STANDARD IMPRINTING AND DIMENSIONS
Front View
Optional Customer Part Number
Print Specification, etc. if Required
XXXXXX
100R01
0.01%
Resistance
Value Code
Tolerance
L
VISHAY
XXXX
Z203
Date Code
07
16
Year Week
ST
(1)
W
H
SW
Model Name
LS
Lead Material #22 AWG
Round Solder Coated Copper
LL
LS
inches
Z203
mm
inches
Z203L
mm
Note
(1)
W
L
H
ST
SW
LL
0.150 ± 0.005
3.81 ± 0.13
0.105 ± 0.010
2.67 ± 0.25
0.200 ± 0.005
5.08 ± 0.13
0.300 ± 0.010
7.62 ± 0.25
0.326 ± 0.010
8.28 ± 0.25
0.010 min.
0.254 min.
0.035 ± 0.01
1.02 ± 0.13
1.000 ± 0.125
25.4 ± 3.18
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
TABLE 2 - Z203 SPECIFICATIONS
Load Life Stability
0.3 W at + 125 °C/0.6 W at + 70 °C
2000 h
10 000 h
0.15 W at + 70 °C
2000 h
10 000 h
± 0.002 % (20 ppm)
± 0.005 % (50 ppm)
± 0.01 % (100 ppm)
± 0.015 % (150 ppm)
± 0.005 % (50 ppm)
± 0.015 % (150 ppm)
± 0.015 % (150 ppm)
± 0.05 % (500 ppm)
TYPICAL
MAXIMUM
Document Number: 63186
Revision: 19-Nov-09
For any questions, contact:
foil@vishay.com
www.vishay.com
3
Z203 (Z1-Foil)
Vishay Foil Resistors
TABLE 3 - ENVIRONMENTAL PERFORMANCE COMPARISON
VISHAY Z203
TYPICAL
ΔR
Test Group I
Thermal Shock, 5 x (- 65 °C to + 150 °C)
Short Time Overload, 5 s (6.25 x rated power)
Test Group II
Resistance Temperature Characteristic
Low Temperature Storage (25 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/+ 125 °C
2000 h
10 000 h
Test Group Va
Life Test at 0.6 W (2 x Rated Power)/+ 70 °C, 2000 h
Test Group VI
High Temperature Exposure, 2000 h at + 150 °C
Test Group VII
Voltage Coefficient
< 0.00001 %/V
< 0.00001 %/V
± 0.05 % (500 ppm)
± 0.1 % (1000 ppm)
± 0.005 % (50 ppm)
± 0.015 % (150 ppm)
± 0.005 % (50 ppm)
± 0.015 % (150 ppm)
± 0.015 % (150 ppm)
± 0.05 % (500 ppm)
± 0.002 % (20 ppm)
± 0.002 % (20 ppm)
± 0.01 % (100 ppm)
± 0.01 % (100 ppm)
± 0.002 % (20 ppm)
± 0.005 % (50 ppm)
± 0.01 % (100 ppm)
± 0.01 % (100 ppm)
± 0.01 % (100 ppm)
± 0.05 % (500 ppm)
see table 1
± 0.002 % (20 ppm)
± 0.002 % (20 ppm)
± 0.002 % (20 ppm)
see table 1
± 0.01 % (100 ppm)
± 0.01 % (100 ppm)
± 0.01 % (100 ppm)
± 0.002 % (20 ppm)
± 0.003 % (30 ppm)
± 0.01 % (100 ppm)
± 0.01 % (100 ppm)
MAXIMUM
ΔR
STANDARD MEASUREMENT
(at room temperature)
Standard Test Conditions:
•
Temperature: + 23 °C ± 2 °C
•
Relative humidity: 35 % to 65 % RH
•
Lead test point: 0.5" (12.7 mm) from resistor body
POST MANUFACTURING OPERATIONS (PMO) FOR IMPROVED END OF LIFE
Many analog applications can include requirements for performance under conditions of stress beyond the norm and over
extended periods of time. This calls for more than just selecting a standard device and applying it to a circuit. The standard device
may turn out to be all that is needed but an analysis of the projected service conditions should be made and it may well dictate
a routine of stabilization known as post manufacturing operations or PMO. The PMO operations that will be discussed are only
applicable to Bulk Metal Foil resistors. They stabilize Bulk Metal Foil resistors while they may be harmful to other types. Short
time overload, accelerated load life, and temperature cycling are the three PMO methods that do the most to remove the
anomalies down the road. Vishay Bulk Metal Foil resistors are inherently stable as manufactured. These PMO methods are only
of value on Bulk Metal Foil resistors and they improve the performance by amounts that are small but significant when compared
to the very tight tolerances. Users are encouraged to contact Vishay Foil applications engineering for assistance in choosing the
PMO operations that are right for their application.
www.vishay.com
4
For any questions, contact:
foil@vishay.com
Document Number: 63186
Revision: 19-Nov-09
Z203 (Z1-Foil)
Vishay Foil Resistors
(1)
TABLE 4 - GLOBAL PART NUMBER INFORMATION
DENOTES PRECISION
Y
VALUE
R
=
Ω
K
= kΩ
NEW GLOBAL PART NUMBER: Y1445250R000V9L (preferred part number format)
CHARACTERISTICS
0
= standard
9
= lead (Pb)-free
1 to 999
= custom
Y
1
4
4
5
2
5
0
R
0
0
0
V
9
L
PRODUCT CODE
1445
= Z203
1446
= Z203L
(2)
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 Y1445 250R000 V 9 L:
TYPE: Z203
VALUE: 250.0
Ω
ABSOLUTE TOLERANCE: ± 0.005 %
TERMINATION: lead (Pb)-free
PACKAGING: bulk
HISTORICAL PART NUMBER: Z203T 250R00 V B (will continue to be used)
Z203
MODEL
Z203
Z203L
(2)
T
TERMINATION
T
= lead (Pb)-free
None = tin/lead
250R00
OHMIC VALUE
250.0
Ω
V
ABS. TOLERANCE
V
T
Q
A
B
C
D
F
= ± 0.005 %
= ± 0.01 %
= ± 0.02 %
= ± 0.05 %
= ± 0.1 %
= ± 0.25 %
= ± 0.5 %
= ± 1.0 %
B
PACKAGING
B
= bulk
Notes
(1)
(2)
For non-standard requests, please contact application engineering
See figure 5
Document Number: 63186
Revision: 19-Nov-09
For any questions, contact:
foil@vishay.com
www.vishay.com
5
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