WF06U2871BTS datasheet, PDF - EEWORLD Datasheet

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WF06U2871BTS: DescriptionFixed Resistor, Metal Film, 0.0625W, 2870ohm, 50V, 0.1% +/-Tol, -25,25ppm/Cel, 0603,; CategoryPassive components The resistor; File Size396KB，8 Pages; ManufacturerWalsin Technology Corporation; Environmental Compliance

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WF06U2871BTS Overview

Fixed Resistor, Metal Film, 0.0625W, 2870ohm, 50V, 0.1% +/-Tol, -25,25ppm/Cel, 0603,

WF06U2871BTS Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Objectid	920000664
Reach Compliance Code	compliant
Country Of Origin	Mainland China
ECCN code	EAR99
YTEOL	7.35
structure	Chip
JESD-609 code	e3
Number of terminals	2
Maximum operating temperature	125 °C
Minimum operating temperature	-55 °C
Package height	0.45 mm
Package length	1.6 mm
Package form	SMT
Package width	0.8 mm
method of packing	TR
Rated power dissipation(P)	0.0625 W
resistance	2870 Ω
Resistor type	FIXED RESISTOR
series	WF06U
size code	0603
technology	METAL FILM
Temperature Coefficient	25 ppm/°C
Terminal surface	Matte Tin (Sn) - with Nickel (Ni) barrier
Tolerance	0.1%
Operating Voltage	50 V

WF06U2871BTS Preview

Walsin Technology Corporation

Walsin Technology Corporation

FEATURE

1. SMD metal film resistor

2. High reliability and stability of 0.1% and below per customer request

3. High performance of TCR: 25 ppm/K and below per customer request

4. Low current noise

APPLICATION

•

Medical equipment

Measuring instrument

Communication device

Computer

Printer

DESCRIPTION

The resistors are constructed in a high grade ceramic body (aluminum oxide). Internal metal electrodes are

added at each end and connected by a resistive layer that is applied to the top surface of the substrate. The

composition of the resistive layer is adjusted to give the approximate resistance required and the value is

trimmed to nominated value within tolerance which controlled by laser trimming of this resistive layer.

The resistive layer is covered with a protective coat. Finally, the two external end terminations are added. For

environmental soldering issue, the outer layer of these end terminations is a Lead-free solder .

Fig 1. Consctruction of Chip-R WFxxU

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QUICK REFERENCE DATA

Item

Series No.

Size code

Resistance Tolerance

Resistance Range

TCR (ppm/°C)

Max. dissipation at T

amb

=70°C

Max. Operation Voltage (DC or RMS)

Climatic category (IEC 60068)

Note :

This is the maximum voltage that may be continuously supplied to the resistor element, see “IEC publication

60115-8”

Max. Operation Voltage : So called RCWV (Rated Continuous Working Voltage) is determined by

1/8W

150V

4.7Ω ~ 1MΩ

( E24 +E96 )

WF12U

1206 ( 3216 )

General Specification

WF08U

0805 ( 2012 )

WF06U

0603 ( 1608 )

WF04U

0402 ( 1005 )

±0.5%, ±0.1%

4.7Ω ~ 1MΩ

( E24 +E96 )

10Ω ~ 330KΩ

( E24 +E96 )

10Ω ~ 100KΩ

( E24 +E96 )

+25 ~ -25 ppm/°C

1/10W

100V

55/125/56

1/16W

50V

1/16W

25V

RCWV

Rated Power

Resistance Value

or Max. RCWV listed above, whichever is lower.

Dimensions:

Type

WF12U

3.10

0.10

1.60

0.10

0.45

0.20

0.45

0.20

0.60

0.15

WF08U

2.00

0.10

1.25

0.10

0.25

0.20

0.40

0.20

0.50

0.15

WF06U

1.60

0.10

0.80

0.10

0.25

0.15

0.30

0.15

0.45

0.15

WF04U

1.00

0.05

0.50

0.05

0.20

0.10

0.25

0.10

0.35

0.05

Protective coat

End termination

Resistive layer

Ceramic Substrate

W T

1001

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Marking

Each resistor is marked with a three digits code on the protective coating to designate the

nominal resistance value. WF04U has no marking!

Example:

E24 serious 1%

E96 serious 1%

39R0 => 390

820R =>821

17R8 =>25X， 178R => 25A

FUNCTIONAL DESCRIPTION

Product characterization

Standard values of nominal resistance are taken from the E96 & E24 series for resistors with a tolerance of

±0.5%, ±0.1%.

The values of the E24/E96 series are in accordance with “IEC publication 60063”.

Derating

The power that the resistor can dissipate depends on the operating temperature; see Fig.2

Figure 2. Maximum dissipation in percentage of rated power

As a function of the ambient temperature

MOUNTING

Due to their rectangular shapes and small tolerances, Surface Mountable Resistors are suitable for handling by

automatic placement systems.

Chip placement can be on ceramic substrates and printed-circuit boards (PCBs).

Electrical connection to the circuit is by individual soldering condition.

The end terminations guarantee a reliable contact.

SOLDERING CONDITION

The robust construction of chip resistors allows them to be completely immersed in a solder bath of 260°C for

one minute. Therefore, it is possible to mount Surface Mount Resistors on one side of a PCB and other discrete

components on the reverse (mixed PCBs).

Surface Mount Resistors are tested for solderability at 235°C during 2 seconds within lead-free solder bath. The

test condition for no leaching is 260°C for 60 seconds. Typical examples of soldering processes that provide

reliable joints without any damage are given in Fig 3.

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Catalogue numbers

The resistors have a catalogue number starting with .

WF06

Size code

WF12: 1206

WF08: 0805

WF06: 0603

WF04: 0402

Type code

U: TCR 25ppm

xxx

Resistance code

E96 +E24:

R is first code followed by

3 significant digits.

E24: 39R0=>390

820R =>821

E96: 17R8 =>25X

178R =>25A

Tolerance

D :

±0.5%

±0.25%

B :

±0.1%

Packaging code

T : Reeled

1. Reeled tape packaging: 8mm width paper taping.

5,000pcs/reel for WF12U, WF08U, WF06U;

10,000pcs/reel for WF04U.

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