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Y1690250R000F9L

Description
res 250 ohm 8W 1% to220
CategoryPassive components   
File Size370KB,4 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Environmental Compliance  
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Y1690250R000F9L Overview

res 250 ohm 8W 1% to220

Y1690250R000F9L Parametric

Parameter NameAttribute value
Datasheets
VPR221Z Series (Z-Foil)
Standard Package500
CategoryResistors
FamilyThrough Hole Resistors
PackagingBulk
Resistance (Ohms)250
Tolerance±1%
Power (Watts)8W
CompositiMetal Foil
FeaturesMoisture Resistant, Non-Inductive
Temperature Coefficie±0.2ppm/°C
Package / CaseTO-220-4
Supplier Device PackageTO-220
Size / Dimensi0.400" L x 0.150" W (10.16mm x 3.81mm)
Heigh0.845" (21.46mm)
Number of Terminations4
VPR221Z (Z-Foil)
Vishay Foil Resistors
Ultra High Precision Z-Foil Power Resistor in
TO-220 Configuration with TCR of ± 0.05 ppm/°C,
PCR of 4 ppm/W and Load Life Stability of ± 0.005 % (50 ppm)
FEATURES
Any value at any tolerance available within resistance range
INTRODUCTION
The Z-Foil Technology provides a significant reduction of the
resistive component’s sensitivity to ambient temperature
variations (TCR) and applied power changes (PCR).
VPR221Z provides high rated power, excellent load life
stability , low Temperature Coefficient (TCR) and low Power
Coefficient (PCR) - all in one resistor. ± 0.05 ppm/°C
Absolute TCR removes error due to temperature gradients.
By taking advantage of the overall stability and reliability of
Bulk Metal
®
Z-Foil resistors, designers can significantly
reduce circuit errors and greatly improve overall circuit
performances.
Model VPR221Z is a 4 lead kelvin connected device.
IM
PR
O
VE
D
Our Application Engineering Department is available to
advise and make recommendations. For non-standard
technical requirements and special applications, please
contact us.
TABLE 1 - TCR AND TOLERANCE
TIGHTEST
RESISTANCE
TOLERANCE
± 0.05 %
RESISTANCE
RANGE ()
0.5 to < 1
1 to < 10
TYPICAL TCR AND
MAX. SPREAD
1)
± 0.2 ppm/°C ± 2.8 ppm/°C
Percent of Rated Power
± 0.02 %
± 0.2 ppm/°C ± 2.3 ppm/°C
10 to 500
± 0.01 %
± 0.2 ppm/°C ± 1.8 ppm/°C
Notes
1. MIL-Range (- 55 °C to + 125 °C, + 25 °C Ref.)
Contact Applications Engineering for other available values
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63116
Revision: 25-Mar-10
For any questions, contact:
foil@vishaypg.com
www.foilresistors.com
1
PR
O
DU
CT
± 0.05 ppm/°C typical (0 °C to + 60 °C)
± 0.2 ppm/°C typical (- 55 °C to + 125 °C,
+ 25 °C ref.) (see table 1)
Tolerance: to ± 0.01 %
Power coefficient “R due to self heating”
4 ppm/W typical
Rated power: 8 W chassis mounted (MIL-PRF-39009)
Load life stability: to ± 0.005 % at 25 °C for 2000 hours,
at 1.5 W
Resistance range: 0.5
to 500
Electrostatic discharge (ESD) above 25 000 V
Short time overload
0.001 % (10 ppm)
Non-inductive, non-capacitive design
Rise time: 1 ns without ringing
Current noise <- 40 dB
Thermal EMF: 0.05 µV/°C typical
Voltage coefficient < 0.1 ppm/V
Non inductive: < 0.08 µH
Non hot spot design
Terminal finishes available: lead (Pb)-free
tin/lead alloy
Any value available within resistance range (e.g. 1K234)
For better performances please contact us
Temperature coefficient of resistance (TCR):
APPLICATIONS
Automatic test equipment (ATE)
High precision instrumentation
Electron beam application
Current sensing applications
I
Pulse applications
Military
I
1
Power amplifier
Power supplies
R
I
E
1
V
E
2
I
2
FIGURE 1- POWER DERATING CURVE
- 55 °C
100
75
50
25
0
- 75
- 50
- 25
0
25
50
75
100
125
150
Ambient Temperature (°C)
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