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303134-287R-D-B-T

Description
Fixed Resistor, Metal Foil, 0.1W, 287ohm, 22V, 0.5% +/-Tol, -.2,.2ppm/Cel, 0805,
File Size127KB,6 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
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303134-287R-D-B-T Overview

Fixed Resistor, Metal Foil, 0.1W, 287ohm, 22V, 0.5% +/-Tol, -.2,.2ppm/Cel, 0805,

303134-287R-D-B-T Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
Objectid942190452
Reach Compliance Codeunknown
ECCN codeEAR99
structureChip
Number of terminals2
Maximum operating temperature150 °C
Minimum operating temperature-55 °C
Package height0.64 mm
Package length2.03 mm
Package formSMT
Package width1.27 mm
method of packingTR
Rated power dissipation(P)0.1 W
GuidelineMIL-PRF-55342
resistance287 Ω
Resistor typeFIXED RESISTOR
series303134
size code0805
technologyMETAL FOIL
Temperature Coefficient0.2 ppm/°C
Tolerance0.5%
Operating Voltage22 V
303134, 303135, 303136, 303137, 303138
Vishay Foil Resistors
Models 303134 through to 303138 (Ultra High Precision Surface Mount Chip
Resistors, VSMP Z-Foil Technology Configuration), Screen/Test Flow in Compliance
with EEE-INST-002, (Tables 2A and 3A, Film/Foil, Level 1) and MIL-PRF-55342
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 ± 0.02 %
Power coefficient “ΔR due to self heating”:
5 ppm at rated power
Power rating: to 400 mW at + 70 °C
Top View
Load life stability: to ± 0.03 % at 70 °C, 2000 h at rated
power
Resistance range: 10
Ω
to 75 kΩ
Vishay Foil resistors are not restricted to standard values,
we can supply specific “as required” values at no extra cost
or delivery (e.g. 1K2345 vs. 1K)
Fast thermal stabilization < 1 s
Electrostatic discharge (ESD) up to 25 000 V
Short time overload:
0.02 %
Non-inductive, non-capacitive design
Rise time: 1 ns effectively no ringing
Current noise: - 42 dB
Voltage coefficient < 0.1 ppm/V
Non-inductive: < 0.08 µH
Non hot spot design
Terminal finish: tin/lead alloy
Matched sets are available on request
For prototype units, append a “U” to the model number
(example: 303134U). These units have all of the table 2A
(page 3) 100 % tests performed, with no destructive
qualification testing required (table 3A, page 4). For more
information, please contact
foil@vishay.com
INTRODUCTION
The 303134 through to 303138 series is the first surface
mount device to provide high rated power, excellent load life
stability along with extremely low TCR all in one resistor.
One of the most important parameters influencing stability is
the temperature coefficient of resistance (TCR). Although the
TCR of foil resistors is considered extremely low, this
characteristic has been further refined over the years. The
303134 through to 303138 Series utilizes ultra high precision
Bulk Metal
®
Z-Foil. The Z-Foil technology provides a
significant reduction of the resistive element’s sensitivity to
ambient temperature variations (TCR) and to self heating
when power is applied (power coefficient). Along with the
inherently low PCR and TCR, Z-Foil technology also
provides remarkably improved load life stability, low noise
and availability of tight tolerance.
The 303134 through to 303138 series has a full wraparound
termination which ensures safe handling during the
manufacturing process, as well as providing stability during
multiple thermal cyclings.
Our application engineering department is available to
advise and make recommendations.
TABLE 1 - TOLERANCE AND TCR VS.
RESISTANCE VALUE
(- 55 °C to + 125 °C, + 25 °C ref.)
RESISTANCE
VALUE
(Ω)
250 to 75K
100 to < 250
50 to < 100
25 to < 50
10 to < 25
TOLERANCE
(%)
± 0.02
± 0.05
± 0.1
± 0.25
± 0.5
MAXIMUM TCR
(ppm/°C)
±3
±3
±4
±5
±5
FIGURE 1 - POWER DERATING CURVE
Percent of Rated Power
- 55 °C
100
75
50
25
0
- 75
+ 70 °C
- 50
- 25
0
+ 25 + 50 + 75 + 100 + 125 + 150 + 175
Ambient Temperature (°C)
Document Number: 63169
Revision: 22-Oct-09
For any questions, contact:
foil@vishay.com
www.vishay.com
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