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Y0779255R000A0W

Description
RES,SMT,METAL FOIL,255 OHMS,.05% +/-TOL,-2.5,2.5PPM TC,2512 CASE
CategoryPassive components    The resistor   
File Size864KB,7 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Environmental Compliance
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Y0779255R000A0W Overview

RES,SMT,METAL FOIL,255 OHMS,.05% +/-TOL,-2.5,2.5PPM TC,2512 CASE

Y0779255R000A0W Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
package instructionSMT, 2512
Reach Compliance Codeunknown
ECCN codeEAR99
structureRectangular
Manufacturer's serial numberHTHA
Number of terminals2
Maximum operating temperature240 °C
Minimum operating temperature-55 °C
Package height0.5 mm
Package length6.35 mm
Package shapeRECTANGULAR PACKAGE
Package formSMT
Package width3.2 mm
method of packingWaffle Pack
Rated power dissipation(P)0.15 W
resistance255 Ω
Resistor typeFIXED RESISTOR
seriesHTHA
size code2512
technologyMETAL FOIL
Temperature Coefficient-2.5,2.5 ppm/°C
Tolerance0.05%
Base Number Matches1
HTHA (Z1-Foil)
Vishay Foil Resistors
Ultra High Precision Z1-Foil Technology Chip Resistor for Hybrid
Circuits with Aluminum Wire Bonding for High Temperature
Applications up to +240°C, Long Term Stability of 0.05%,
TCR to ± 1ppm/°C
FEATURES
Temperature coefficient of resistance (TCR):
±1 ppm/°C typical (- 55 °C to + 125 °C, + 25 °C ref.)
±2.5 ppm/°C typical (- 55 °C to + 220 °C, + 25 °C
ref.)
Resistance range: 5 to 125 k(for higher
or lower values, please contact VFR's application
engineering department)
Resistance tolerance: to ± 0.02 %
Connection method: aluminum wire bonding*
Working power: to 150mW at + 220°C
Long term stability: to ± 0.05 % at + 240°C for 2000h, no
power
Load life stability: to 0.05% at + 220°C for 2000h at
working power
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)
Thermal stabilization time < 1 s (nominal value achieved
within 10 ppm of steady state value)
Electrostatic discharge (ESD) at least to 25 kV
Non inductive, non capacitive design
Rise time: 1 ns effectively no ringing
Current noise: 0.010 µV (RMS)/Volt of applied voltage
(< - 40 dB)
Voltage coefficient: < 0.1 ppm/V
Non inductive: < 0.08 µH
Non hot spot design
Terminal finish available: gold plated (lead (Pb)-free alloy)
Prototype quantities available in just 5 working days
or sooner. For more information, please contact
foil@vishaypg.com
* For other mounting option: facing down (flip chip) mounted by
electrical conductive-epoxy please contact application engineering
department
INTRODUCTION
Vishay Foil Resistors (VFR) introduces a new line of Ultra
Precision Bulk Metal
®
Z1-Foil technology: chip resistor for
hybrid circuits with aluminum wire bonding. These new types
of hybrid chips were especially designed for high
temperature applications up to + 240 °C
(1)
(working power: to
150mW at + 220°C), and include gold plated terminals.
The HTHA series is available in any value within the
specified resistance range. VFR's application engineering
department is available to advise and make
recommendations.
For non-standard technical requirements and special
applications, please contact
foil@vishaypg.com.
TABLE 1 - TOLERANCE AND TCR VS.
RESISTANCE VALUE
(1)(2)
(- 55 °C to + 220 °C, + 25 °C Ref.)
RESISTANCE
VALUE
()
100to 125K
50to < 100
25to < 50
10to < 25
5to 10
TOLERANCE
(%)
± 0.02
± 0.05
± 0.1
± 0.25
± 0.5
Percent of Rated Power
Note
(1)
Performances obtained with ceramic PCB.
(2)
For tighter performances or non-standard values up to 150 k,
please contact VFR's application engineering department by
sending an e-mail to the address in the footer below.
Document Number: 63222
Revision: 20-Dec-11
PR
EL
IM
IN
AR
Y
TCR Typical
(ppm/°C)
± 2.5
-55°C
+70°C
100
75
50
25
0
-75
-50
-25
0
+25
+50
FIGURE 1 - POWER DERATING CURVE
+240
+75 +100 +125 +150 +175 +200 +225 +250
Ambient Temperature (°C)
For any questions, contact:
foil@vishaypg.com
www.vishayfoilresistors.com
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