SMR3P620R00TCR0.2AST datasheet, PDF

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SMR3P620R00TCR0.2AST: DescriptionFixed Resistor, Metal Foil, 0.6W, 620ohm, 180V, 0.05% +/-Tol, -2,2ppm/Cel, 2917; CategoryPassive components The resistor; File Size443KB，5 Pages; ManufacturerVishay; Websitehttp://www.vishay.com; Environmental Compliance

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SMR3P620R00TCR0.2AST Overview

Fixed Resistor, Metal Foil, 0.6W, 620ohm, 180V, 0.05% +/-Tol, -2,2ppm/Cel, 2917

SMR3P620R00TCR0.2AST Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Vishay
Reach Compliance Code	compliant
ECCN code	EAR99
structure	Rectangular
Manufacturer's serial number	SMR3P
Number of terminals	2
Maximum operating temperature	175 °C
Minimum operating temperature	-55 °C
Package height	2.79 mm
Package length	7.29 mm
Package shape	RECTANGULAR PACKAGE
Package form	SMT
Package width	4.32 mm
method of packing	TR
Rated power dissipation(P)	0.6 W
resistance	620 Ω
Resistor type	FIXED RESISTOR
series	SMR3P
size code	2917
technology	METAL FOIL
Temperature Coefficient	-2,2 ppm/°C
Tolerance	0.05%
Operating Voltage	180 V

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SMR3P (Z1-Foil)

Vishay Foil Resistors

Ultra High Precision Industrial Grade with the Second Generation of Z-Foil (Z1-Foil)

Molded Surface Mount Resistor with TCR down to ± 0.5 ppm/°C Maximum, PCR of ± 5 ppm

at Rated Power, Flexible Terminations, and Load Life Stability of ± 0.005 % (50 ppm)

FEATURES



Temperature coefficient of resistance (TCR):

± 0.5 ppm/°C maximum (+ 25 °C to + 125 °C)



Tolerance: to ± 0.01 %



Power coefficient of resistance (PCR)

“R due to self heating”: 5 ppm at rated power



Flexible terminations ensure minimal stress transference

from the PCB due to load induced temperature gradients

and a difference in thermal coefficient of expansions (TCE)



Electrostatic discharge (ESD) up to 25 000 V



Load life stability: ± 0.005 % (70 °C, 2000 h at rated power)



Resistance range: 100



to 15 k



Vishay Foil resistors are not restricted to standard values;

specific “as-required” values can be supplied at no extra

cost or delivery (e.g. 1K0002 vs. 1K)



Power rating: to 600 mW at 70 °C



Non-inductive, non-capacitive design



Current noise: 0.010 µV

RMS

/V of applied voltage (< - 40 dB)



Voltage coefficient: < 0.1 ppm/V



Non-inductive: < 0.08 µH typical



Thermal stabilization time < 1 s (nominal value achieved

within 10 ppm of steady state value)



Pattern design minimizing hot spots



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



Matched sets with TCR tracking are available upon request



For better performances please contact us



Prototype quantities available in just 5 working days

or sooner. For more information, please contact

foil@vishaypg.com



Compliant to RoHS directive 2002/95/EC

Flexible Termination

INTRODUCTION

Flexible Terminations with Zero TCR

Vishay’s new flexible termination resistor with the second

generation of Z-Foil (Z1-Foil) features new orders of accuracy,

stability and speed in a size small enough for permanent

assembly in operational equipment.

It is well known that chips of 1206 and larger dimensions

occasionally delaminate from the printed circuit board or develop

cracks. This is due to stresses introduced into the chip by handling

of the PC board and stress due to thermal shock.

Vishay has introduced a chip in a molded package with flexible

terminations which does not change due to the above, i.e. no

cracks and no separation from the board.

The SMR3P is the industry’s lowest absolute TCR, thus reducing

a major source of uncertainty in precision circuits. The SMR3P

can withstand unconventional environmental conditions,

including the extremely high temperatures and radiation-rich

environments of down-hole oil exploration and well logging, or the

deep-sea underwater repeaters in cross-ocean communications.

The exceptionally-low TCR of the new Z-Foil Bulk Metal

Foil

resistor derives from an elegant balance of metallurgical resistivity

and temperature-induced compressive force.

The SMR3P comes with a Load Life Stability certificate:

The Bulk Metal Z-Foil resistor has documented the most precise

load-life stability of any resistor. That’s because the resistance

element is a Bulk Metal Z-alloy that has been applied to a

substrate with a unique formation of a resistive pattern that is

maintained stress-free through the balance of the process,

including termination welding, encapsulation, marking, curing,

etc. Coatings between the element and the external case isolate

the element from external stresses. The flat planar foil very

efficiently transmits heat to the substrate and dissipates it through

the leads and through the package body. The SMR series of

surface-mounts has the further advantage of flexible terminations

to isolate the element from repetitive expansions and contractions

of the board, thereby assuring even better long-term stability.

Moreover, all Vishay Bulk Metal Foil resistors are rated to

maintain rated stability at full rated power and temperature. So it

is not necessary to de-rate the foil resistors in application.

Application includes:

1. Secondary standards

2. Feedback devices for operational amplifiers

3. Precision voltage dividers

4. Precision bridge resistors

5. Decade voltage dividers

Our application engineering department is available to advise

and make recommendations. For non-standard technical

requirements and special applications, please contact us.

APPLICATIONS



Precision amplifiers

High precision instrumentation

Medical

Automatic test equipment (ATE)

Industrial

Audio (high end stereo equipment)

EB application

Pulse application

Measurement instrumentation

out

SMR Pair

TABLE 1 - TOLERANCE AND TCR VS.

RESISTANCE VALUE

(1)

VALUE

100



to 15 k

MAXIMUM

TIGHTEST TCR (ppm/°C) TCR (ppm/°C)

TOLERANCE

(+ 25 °C to

(- 55 °C to

+ 125 °C)

+ 25 °C)

± 0.01 %

± 0.5

±2

Note

(1)

Tighter performances are available

* Pb containing terminations are not RoHS compliant, exemptions may apply

Document Number: 63185

Revision: 29-Mar-10

For any questions, contact:

foil@vishaypg.com

www.foilresistors.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-11

www.vishaypg.com

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