Y0706942R000B9L datasheet, PDF

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Y0706942R000B9L: DescriptionFixed Resistor, Metal Foil, 0.2W, 942ohm, 200V, 0.1% +/-Tol, 0.2ppm/Cel, Through Hole Mount, 2508, RADIAL LEADED, ROHS COMPLIANT; CategoryThe resistor; File Size1MB，5 Pages; ManufacturerVishay; Websitehttp://www.vishay.com; Environmental Compliance

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Y0706942R000B9L Overview

Fixed Resistor, Metal Foil, 0.2W, 942ohm, 200V, 0.1% +/-Tol, 0.2ppm/Cel, Through Hole Mount, 2508, RADIAL LEADED, ROHS COMPLIANT

Y0706942R000B9L Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Vishay
package instruction	Radial, 2508
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	ULTRA HIGH PRECISION, NON-INDUCTIVE
structure	Rectangular
Lead length	25.4 mm
lead spacing	3.81 mm
Manufacturer's serial number	VAR
Installation features	THROUGH HOLE MOUNT
Number of terminals	2
Maximum operating temperature	175 °C
Minimum operating temperature	-55 °C
Package height	7.87 mm
Package length	6.35 mm
Package shape	RECTANGULAR PACKAGE
Package form	Radial
Package width	2.03 mm
method of packing	BULK
Rated power dissipation(P)	0.2 W
Rated temperature	125 °C
resistance	942 Ω
Resistor type	FIXED RESISTOR
series	VAR
size code	2508
surface mount	NO
technology	METAL FOIL
Temperature Coefficient	.2 ppm/°C
Terminal shape	WIRE
Tolerance	0.1%
Operating Voltage	200 V
Base Number Matches	1

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VAR

Vishay Foil Resistors

Ultra High Precision, Z-Foil Audio Resistor Minimizes Noise and

Distortion in the Signal Path with TCR of ± 0.05 ppm/°C, Tolerance

to ± 0.005 % and High Linearity or Low Voltage Coefficient of

Resistance (VCR) of 0.1 ppm/V

FEATURES



Temperature coefficient of resistance (TCR):

± 0.05 ppm/°C typical (0 °C to + 60 °C,+ 25 °C

ref.) ± 0.2 ppm/°C typical (0 °C to + 125 °C,

+ 25 °C ref.)



Rated power: to 0.4 W at + 70 °C



Resistance tolerance: to ± 0.01 % (0.005% is available)



Load life stability: to ± 0.005 % at 70 °C, 2000 h at rated

power



Resistance range: 10

to

100 k



"Naked Z-foil resistor" design without molding or

encapsulation adds an additional dimension for reducing

signal distortion and increasing clarity in signal processing.



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) at least to 25 000 V



Non-inductive, non-capacitive design



Rise time: 1 ns, effectively no ringing



Current noise: 0.010 µV (RMS)/Volt of Applied Voltage



(< - 40 dB)



Thermal EMF: 0.05 µV/°C



Voltage coefficient: < 0.1 ppm/V



Thermal stabilization time < 1 s (nominal value achieved

within 10 ppm of steady state value)



Inductance: < 0.08 µH typical



The Z-Foil chip in the VAR has been especially treated to

increase load life stability.



Terminal Finish: lead (Pb)-free or tin/lead alloy

(1)



Prototype quantities available in just 5 working days or

sooner. For more information, please contact

foil@vishaypg.com

For better performances please contact us.

INTRODUCTION

Many manufacturers and users of precision electronic

equipment suffer needlessly from unexplained instabilities

and drifts due to noise effects. They resign themselves to

making constant adjustments and troubleshooting. But in

fact these can be avoided. Instability is often traceable to a

few supposedly “fixed” resistors which are not really fixed at

all. If these resistors would only retain their original values,

there would be no need for costly controls and other

compensating circuitry. That’s why the only resistor for

applications such as these is Vishay Bulk Metal

Foil. In

high-end audio equipment, careful selection of resistors is

one of the best ways to avoid or minimize noise and

distortion in the signal path. Noise is an unwanted wide

spectrum signal that may be superimposed on any useful

signal, including DC. Resistors, like other passive

components, are noise sources to various degrees,

depending upon resistance value, temperature, applied

voltage, and resistor type. Many experiments have been

done to show why some resistors are “noisier” than others.

But the only test that audio experts and audiophiles have

agreed on is comparing the level of fidelity that results when

different resistor technologies are used in actual audio

systems.

High-end analog audio applications require low intrinsic

noise, high linearity of amplification, and minimal dynamic

distortion. The typical audio amplifier consists of a voltage

preamplifier (preamp) and power amplifier (final driver). The

voltage preamplifier deals with low-level signals. That is why

its intrinsic noise level is critical. Resistors are among the

principal noise sources in the amplifiers. The main

requirements for the audio power amplifier are high linearity

of amplification and minimal dynamic distortion. Vishay Foil

resistors are characterized by very low intrinsic non-linearity

of the resistive element, which is made from cold-rolled bulk

metal.

The VAR, composed of Vishay’s Bulk Metal

Z-foil

technology, with improved sound quality, provides a

combination of low noise and low inductance/capacitance,

making it unrivalled for applications requiring low noise and

distortion-free properties.

Document Number: 63140

Revision: 03-Jan-12

For any questions, contact:

foil@vishaypg.com

www.vishayfoilresistors.com

Legal Disclaimer Notice

Vishay Precision Group

Disclaimer

ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE.

Vishay Precision Group, Inc., its affiliates, agents, and employees, and all persons acting on its or their

behalf (collectively, “Vishay Precision Group”), disclaim any and all liability for any errors, inaccuracies or

incompleteness contained herein or in any other disclosure relating to any product.

The product specifications do not expand or otherwise modify Vishay Precision Group’s terms and

conditions of purchase, including but not limited to, the warranty expressed therein.

Vishay Precision Group makes no warranty, representation or guarantee other than as set forth in the terms

and conditions of purchase.

To the maximum extent permitted by applicable law, Vishay Precision

Group disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and

all liability, including without limitation special, consequential or incidental damages, and (iii) any and

all implied warranties, including warranties of fitness for particular purpose, non-infringement and

merchantability.

Information provided in datasheets and/or specifications may vary from actual results in different

applications and performance may vary over time. Statements regarding the suitability of products for

certain types of applications are based on Vishay Precision Group’s knowledge of typical requirements that

are often placed on Vishay Precision Group products. It is the customer’s responsibility to validate that a

particular product with the properties described in the product specification is suitable for use in a particular

application.

No license, express, implied, or otherwise, to any intellectual property rights is granted by this document, or

by any conduct of Vishay Precision Group.

The products shown herein are not designed for use in life-saving or life-sustaining applications unless

otherwise expressly indicated. Customers using or selling Vishay Precision Group products not expressly

indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay

Precision Group for any damages arising or resulting from such use or sale. Please contact authorized

Vishay Precision Group 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 No.: 63999

Revision: 27-Apr-2011

www.vishaypg.com

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