WR02X472_PGL [WALSIN]

Thick Film General purpose chip resistors;


型号：	WR02X472_PGL
厂家：	Walsin Technology
描述：	Thick Film General purpose chip resistors
文件：	总7页 (文件大小：230K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Approval sheet

WR02X(W)

±5%, ±1%

Thick Film General purpose chip resistors

Size 0201

*Contents in this sheet are subject to change without prior notice.

Page 1 of 7

ASC_WR02X_V18

MAY - 2016

Approval sheet

FEATURE

1. Small size and light weight

2. High reliability and stability

3. Reduced size of final equipment

4. Suitable for high density print circuit board assembly

5. Higher component and equipment reliability

6. Lead free product

APPLICATION

•

Mobile phone

PDA

Camcorders

Palmtop computers

Hybrid module

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 paste that is applied to the top surface of the substrate. The

composition of the paste 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

ease of soldering the outer layer of these end terminations is a pure Tin.

Fig 1. Construction of Chip-R WR02X

Page 2 of 7

ASC_WR02X_V18

MAY - 2016

Approval sheet

QUICK REFERENCE DATA

Item

Series No.

General Specification

WR02X(W)

Size code

0201(0603)

Resistance Range

1Ω~10MΩ ( ±5% tolerance ), Jumper

1Ω~ 10MΩ ( ±1% tolerance )

Resistance Tolerance

±1%

±5%

E24

E96/E24

TCR (ppm/°C)

10Ω - 10MΩ, ≤±200

1 - 9.76Ω, +600~-200

Max. dissipation @ T_amb=70°C

Max. Operation Voltage (DC or RMS)

Max. Overload Voltage (DC or RMS)

Operation temperature

1/20 W

25V

50V

-55 ~ +125’C

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

or Max. RCWV listed above, whichever is lower.

RCWV = RatedPower×ResistanceValue

DIMENSION(unit : mm)

Protective coat

WR02X(W)

0.60 ± 0.03

0.30 ± 0.03

0.23 ± 0.03

0.15 ± 0.05

0.10 ± 0.05

End termination

Resistive layer

Ceramic Substrate

MARKING

WR02X(W) has no marking.

Page 3 of 7

ASC_WR02X_V18

MAY - 2016

Approval sheet

FUNCTIONAL DESCRIPTION

Product characterization

Standard values of nominal resistance are taken from the E24/E96 series for resistors with a tolerance of ±5%

& ±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 10

seconds. 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. The test condition for no

leaching is 260°C for 30 seconds. Typical examples of

soldering processes that provide reliable joints without

any damage are given in Fig 3.

Fig 3. Infrared soldering profile for Chip Resistors WR02X(W)

Page 4 of 7

ASC_WR02X_V18

MAY - 2016

Approval sheet

CATALOGUE NUMBERS

The resistors have a catalogue number starting with :

WR02

Size code

472_

Type code

Resistance code

Tolerance

J : ±5%

Packaging code

Termination code

WR02 : 0201

X : Normal

5%, E24: 2 significant digits

followed by no. of

: 7” Reeled taping

(15Kpcs/Reel)

= Sn base (lead

free)

W : 1% For <10Ω and

>1MΩ

F : ±1%

zeros and a blank

: 7” Reeled taping

(10Kpcs/Reel)

P : Jumper

4.7Ω = 4R7_

100Ω = 101_

10KΩ = 103_

: 7” Reeled taping

(20Kpcs/Reel)

H : 13” Reeled taping

(50Kpcs/Reel)

1%, E24+E96: 3 significant

digits followed by no.

of zeros

: 13” Reeled taping

100Ω

=1000

=3742

(70Kpcs/Reel)

37.4KΩ

TEST CONDITION FOR JUMPER (0 Ω)

Item

WR02

1/20W

Power Rating At 70°C

Resistance

MAX.50mΩ

Rated Current

Peak Current within 5 sec

Operating Temperature

2.5A

-55 ~ +125°C

Page 5 of 7

ASC_WR02X_V18

MAY - 2016

Approval sheet

TEST AND REQUIREMENTS (JIS C 5201-1 : 1998)

REQUIREMENT

Resistor

TEST

PROCEDURE / TEST METHOD

0Ω

Within the specified tolerance

Refer to “QUICK

Electrical Characteristics

DC resistance values measurement

Temperature Coefficient of Resistance (T.C.R)

REFERENCE DATA”

Natural resistance change per change in degree

centigrade.

JISC5201-1: 1998

Clause 4.8

<50mΩ

R₂− R

×10⁶(ppm/°C) t₁: 20°C+5°C-1°C

(

t₂− t₁

)

R₁: Resistance at reference temperature (20°C+5°C/-

1°C)

R₂: Resistance at test temperature (-55°C or +125°C)

Short time overload

(S.T.O.L)

Permanent resistance change after

5second

application of a voltage 2.5 times RCWV or the maximum

overload voltage specified in the above list, whichever is

less.

∆R/R max. ±(2%+0.10Ω)

<50mΩ

Clause 4.13

Un-mounted chips completely immersed for 10±1second

in a SAC solder bath at 260℃±5ºC

Resistance to soldering

heat(R.S.H)

ΔR/R max. ±(1%+0.05Ω)

no visible damage

Clause 4.18

Solderability

Clause 4.17

95% coverage min., good tinning and no

visible damage

Un-mounted chips completely immersed for 2±0.8second

in a SAC solder bath at 235℃±5℃

30 minutes at -55°C±3°C, 2~3 minutes at 20°C+5°C-1°C,

30 minutes at +125°C±3°C, 2~3 minutes at 20°C+5°C-

1°C, total 5 continuous cycles

Temperature cycling

∆R/R max. ±(1%+0.05Ω)

< 50mΩ

Clause 4.19

1000 +48/-0 hours, loaded with RCWV or Vmax in

humidity chamber controller at 40°C±2°C and 90~95%

relative humidity, 1.5hours on and 0.5 hours off

10Ω≤R<1MΩ :

Damp Heat

∆R/R max. ±(3%+0.10Ω)

R<10Ω, R≥1MΩ :

(Load life in humidity)

Clause 4.24

∆R/R max. ±(5%+0.10Ω)

1000+48/-0 hours; loaded with RCWV or V_maxin chamber

Load Life (Endurance)

Ditto.

controller 70±2ºC, 1.5 hours on and 0.5 hours off

Clause 4.25

Resistors mounted on a 90mm glass epoxy resin No visual damaged,

Bending strength

< 50mΩ

PCB(FR4), bending once 5mm for 10sec.

∆R/R max. ±(1%+0.05Ω)

Clause 4.33

No remarkable damage or removal of the

terminations

Adhesion

Pressurizing force: 3N, Test time: 10±1sec.

Clause 4.32

Page 6 of 7

ASC_WR02X_V18

MAY - 2016

Approval sheet

PACKAGING

Paper Tape specifications (unit :mm)

Series No.

WR02X

0.67±0.05

0.37±0.05

8.00±0.20

3.50±0.05

1.75±0.10

Series No.

WR02X

ΦD

+0.1

2.00±0.05

4.00±0.05

0.45±0.05

Φ1.50

−0.0

Reel dimensions

Symbol

7” Reel

10” Reel

13” Reel

13.0±0.2

9.0±0.5

Φ178.0±0.2

Φ254.0±2.0

Φ330.0±2.0

Φ60.0±1.0

Φ100.0±1.0

Taping quantity and Tape material

Chip resistors 10,000 / 15,000 / 20,000 pcs 7” Reel, Paper tape.

Chip resistors 50,000 / 70,000 pcs 13” Reel, Paper tape.

Page 7 of 7

ASC_WR02X_V18

MAY - 2016

相关型号：