首页 > WW04PR487FTLJ

WW04PR487FTLJ

更新时间：2025-06-18 09:56:59

品牌：WALSIN

描述：0402(1005), 0.487Ω, ±1%, 1/8W

PDF下载

中文翻译

免费 PCB/SMT

概述
数据手册

如果您发现信息不准确，欢迎纠错

WW04PR487FTLJ 概述

0402(1005), 0.487Ω, ±1%, 1/8W

WW04PR487FTLJ 数据手册

通过下载WW04PR487FTLJ数据手册来全面了解它。这个PDF文档包含了所有必要的细节，如产品概述、功能特性、引脚定义、引脚排列图等信息。

PDF下载

Approval

sheet

WW25P, WW20P, WW10P, WW12P,

WW08P, WW06P, WW04P

1%, 5% 100mΩ~976mΩ

Thick Film High Power Low Ohm Chip Resistors

(Automotive)

Size 2512 2W, 2010 1W, 1210 1/2W, 1206 1/2W

0805 1/4W ; 0603 1/8W, 0402 1/8W

RoHS 2 Compliant with exemption 7C-1

Halogen free

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

Page 1 of 10

ASC_WWxxP_J_AUTO_V01

Sep - 2023

Approval

sheet

FEATURE

1. High power rating and compact size

2. High reliability and stability

3. Reduced size of final equipment

4. RoHS 2 Compliant with exemption 7C-1 and Halogen free.

APPLICATION



Power supply

PDA

Digital meter

Computer

Automotives

Battery charger

DC-DC power converter

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 Tin (lead free) alloy.

Fig 1. Construction of Chip-R

Page 2 of 10

ASC_WWxxP_J_AUTO_V01

Sep - 2023

Approval

sheet

QUICK REFERENCE DATA

Item

General Specification

WW08P

WW06P

WW04P

Series No.

Size code

WW25P

WW20P

WW10P

WW12P

0805

0603

0402

2512

2010

1210

1206

(2012)

(1608)

( 1005 )

(6432)

(5025)

(3225)

(3216)

Resistance Tolerance

Resistance Range

1% ( E24+E96), 5%

0.10 ~ 0.976

TCR (ppm/C)

±150ppm

±200ppm ±250ppm ±300ppm

0.10ohm~0.96ohm

Max. dissipation at

T_amb=70C

2 W

1/2W

1/2w

1/4 W

1/8 W

Max. Operation Current

(DC or RMS)

4.5~1.5A

9.0~3.0A

3.2~1.0A

6.4~2.0A

2.3~0.75A

4.6~15A

2.2~0.7A

1.6~0.5A

3.2~1.0A

1.1~0.35A

2.2~0.7A

1.1~0.35A

2.2~0.7A

Max. Overload Current

(DC or RMS)

4.4~1.4A

Operation temperature

-55 ~ +155C

Note :

2W loading with total solder-pad and trace size of 300 mm²

Resistance value will be changed by soldering condition and design of soldering pad, please design products in

consideration of this change of resistance value

Page 3 of 10

ASC_WWxxP_J_AUTO_V01

Sep - 2023

Approval

sheet

MECHANICAL DATA (Unit: mm)

Unit: mm

Symbol

WW25P

WW20P

WW10P

WW12P

WW08P

WW06P

WW04P

6.30  0.20

3.10  0.20

0.60  0.15

0.60  0.25

1.80  0.25

5.00  0.20

2.50  0.20

0.60  0.10

0.60  0.25

3.10  0.10

2.50  0.10

0.55  0.10

0.50  0.25

3.10  0.15

1.60  0.15

0.55  0.10

0.50  0.25

2.00  0.10

1.25  0.10

0.50  0.15

0.40  0.20

1.60  0.10

0.80  0.10

0.45  0.15

0.30  0.10

0.30  0.15

1.00  0.05

0.50  0.05

0.35  0.05

0.20  0.10

0.25  0.10

Recommended Solder Pad Dimensions

Type

WW25P

3.7mm

2.45mm

7.6mm

MARKING

For 0603 above size, each resistor is marked with a four-digit for 1% tolerance and three-digit for 5%

tolerance on the protective coating to designate the nominal resistance value.

For 0402, no marking !

For Jumper, 2512/2010 defines 0000, 1206/0805/0603 defines 000.

Example:

102 = 1k

16R0 = 16

102

16R0

Page 4 of 10

ASC_WWxxP_J_AUTO_V01

Sep - 2023

Approval

sheet

FUNCTIONAL DESCRIPTION

Product characterization

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

5% & 1%. The values of the E24/E96 series are in accordance with “IEC publication 60063”.

Derating curve

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.

Page 5 of 10

ASC_WWxxP_J_AUTO_V01

Sep - 2023

Approval

sheet

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

CATALOGUE NUMBERS

The resistors have a catalogue number starting with.

WW25

R100

Siz

cod

Typ

cod

Resistance code

Tolerance

J : 5%

F : 1%

Packaging code

T : 7” Reel taping

G : 13” Reel taping

Termination

code

Special code

J =

E96 +E24:

= Sn base

“R” is first digit followed by

3 significant digits.

1. AEC Q200

Compliant

(lead free)

WW25 : 2512

WW20 : 2010

WW10 : 1210

WW12 : 1206

WW08 : 0805

WW06 : 0603

WW04 : 0402

P :Power

e.g.:

2. 100% CCD visual

inspection

2512 size = 2W

2010 size = 1W

1206 size = 1/2W

1210 size = 1/2W

0805 size = 1/4W

0603 szie = 1/8W

0402 size = 1/8W

0.1ohm

R100

R560

0.56ohm

Tape packaging WW12, WW10, WW08, WW06 : 8mm width paper taping 5,000pcs per reel.

WW04: 8mm width paper taping 10,000pcs per reel.

WW25, WW20: 12mm width plastic taping 4,000pcs per reel.

Page 6 of 10

ASC_WWxxP_J_AUTO_V01

Sep - 2023

Approval

sheet

TEST AND REQUIREMENTS

PROCEDURE / TEST METHOD

REQUIREMENT

TEST

Resistor

Within the specified tolerance

Refer to “QUICK REFERENCE

DATA”

Electrical Characteristics

- DC resistance values measurement

- Temperature Coefficient of Resistance (T.C.R)

Natural resistance change per change in degree

centigrade.

JISC5201-1: 1998

Clause 4.8

R₂ R

10⁶(ppm/C)

t₁: 20°C+5°C-1°C

₁t₂ t₁

R₁: Resistance at reference temperature

R₂: Resistance at test temperature

Un-mounted chips completely immersed for 10±1second

in a SAC solder bath at 270℃±5ºC

Resistance to soldering

heat(R.S.H)

ΔR/R max. (1.0%+0.005)

no visible damage

MIL-STD-202

method 210

a) Bake the sample for 155℃ dwell time 4hrs/ solder

dipping 235℃/ 5sec.

Solderability

J-STD-002

95% coverage min., good

b) Steam the sample dwell time 8 hour/ solder dipping 215

tinning and no visible damage

℃/ 5sec.

c) Steam the sample dwell time 8 hour/ solder dipping 260

℃/ 7sec.

1000 cycles, -55℃ ~ +155℃, dwell time 30min

R/R max. (1.0%+0.005)

Temperature cycling

JESD22

maximum.

No visible damage

Method JA-104

R/R max. (1.0%+0.005)

No visible damage

Moisture Resistance

MIL-STD-202

652C, 80~100% RH, 10 cycles, 24 hours/ cycle

method 106

1000+48/-0 hours; 85C, 85% RH, 10% of operation

R/R max. (2.0%+0.005)

Bias Humidity

MIL-STD-202

method 103

power

No visible damage

Operational Life

1000+48/-0 hours; 35% of operation power, 1252C

R/R max. (2.0%+0.005)

MIL-STD-202

108

method

No visible damage

High Temperature Exposure 1000+48/-0 hours; without load in a temperature

R/R max. (2%+0.005)

MIL-STD-202

Method 108

chamber controlled 1553C

No visible damage

Board Flex

Resistors mounted on a 90mm glass epoxy resin

PCB(FR4),bending once 2mm for 60sec.

R/R max. (1.0%+0.005)

No visible damage

AEC-Q200-005

Terminal strength

AEC-Q200-006

Pressurizing force: 1.8Kg, Test time: 60±1sec.

No remarkable damage or

removal of the terminations

Page 7 of 10

ASC_WWxxP_J_AUTO_V01

Sep - 2023

Approval

sheet

Thermal shock

MIL-STD-202

method 107

ESD

Test –55 to 155℃/ dwell time 15min/ Max transfer time

R/R max. (1.0%+0.005)

20sec 300cycles

No visible damage

Test contact 1KV (0.5KV for 0402 only)

R/R max. (1.0%+0.005)

No visible damage

AEC-Q200-002

Short Time Overload

JISC5201-1: 1998

Clause 4.13

2.5 times RCWV or max. overload voltage, for 5seconds

ΔR/R max. ±(2.0%+0.10Ω)

No visible damage

Test ½ Sine Pulse, Peak value: 100g, normal duration:

6ms, Velocity change:12.3ft/sec. Three shocks in each

direction, total 18 shocks.

Mechanical Shock

MIL-STD-202

method 213

Vibration

Within product specification

tolerance and no visible damage.

Test 5g’s for 20 min., 12 cycles each of 3 orientations.

△R/R max. ±(0.5%+0.005Ω) and

MIL-STD-202

method 204

no visible damage.

Solvent is Isopropyl alcohol, immersion 3mins at 25℃

No superficial defect on marking,

encapsulation, coating,

Resistance to Solvents :

MIL-STD-202

and brush 10 strokes with a toothbrush with a handle

made of a non-reactive material (wet bristle), immersion appearance. Electrical

and brush 3 times and then air blow dry.

characteristics within products

Method 215

specification and tolerance.

Inspect at 3X max. for marking,

inspect at 10X for part damage.

Electrical test not required. Inspect device construction,

marking and workmanship

External Visual

MIL-STD-883

method 2009

Physical Dimension

JESD22

No visual damage and refer

WTC marking code.

Verify physical dimensions(L, W, T, Tb, Tt)

Within the specified tolerance for

WTC.

method JB-100

Page 8 of 10

ASC_WWxxP_J_AUTO_V01

Sep - 2023

Approval

sheet

PACKAGING

Paper Tape specifications (unit :mm)

Series No.

WW25P

6.90±0.20

3.60±0.20

12.00±0.30

5.50±0.10

WW20P

WW10P

WW12P

WW08P

WW06P

WW04P

5.50±0.20

3.60±0.20

2.40±0.20

1.90±0.20

1.20±0.10

2.80±0.20

3.00±0.20

2.00±0.20

1.65±0.20

1.10±0.20

0.70±0.10

8.00±0.30

3.50±0.20

1.75±0.10

Series No.

WW25P

D

0.1

0.0

4.00±0.10

1.50

Max.1.2

WW20P

WW10P

WW12P

WW08P

WW06P

WW04P

0.1

0.0

4.00±0.10

1.50

Max.1.0

4.00±0.10

2.00±0.05

4.00±0.10

0.65±0.05

0.40±0.05

0.1

0.0

1.50

Page 9 of 10

ASC_WWxxP_J_AUTO_V01

Sep - 2023

Approval

sheet

Reel dimensions

(unit : mm)

Reel / Tape

7” reel for 8mm tape

9.00±0.50

12.4±1.00

9.00±0.50

178.0±2.0

Φ330.0±2.00

60.0±1.0

100.0±1.00

13.0±0.2

7” reel for 12mm tape

13” reel for 8mm tape

Page 10 of 10

ASC_WWxxP_J_AUTO_V01

Sep - 2023

WW04PR487FTLJ 相关器件

型号	制造商	描述	价格	文档
WW04PR487FTLV	WALSIN	0402(1005), 0.487Ω, ±1%, 1/8W	获取价格
WW04PR487JTL	WALSIN	0402(1005), 0.487Ω, ±5%, 1/8W	获取价格
WW04PR487JTLJ	WALSIN	0402(1005), 0.487Ω, ±5%, 1/8W	获取价格
WW04PR487JTLV	WALSIN	0402(1005), 0.487Ω, ±5%, 1/8W	获取价格
WW04PR499FTL	WALSIN	0402(1005), 0.499Ω, ±1%, 1/8W	获取价格
WW04PR499FTLJ	WALSIN	0402(1005), 0.499Ω, ±1%, 1/8W	获取价格
WW04PR499FTLV	WALSIN	0402(1005), 0.499Ω, ±1%, 1/8W	获取价格
WW04PR499JTL	WALSIN	0402(1005), 0.499Ω, ±5%, 1/8W	获取价格
WW04PR499JTLJ	WALSIN	0402(1005), 0.499Ω, ±5%, 1/8W	获取价格
WW04PR499JTLV	WALSIN	0402(1005), 0.499Ω, ±5%, 1/8W	获取价格