首页 > WF25Q3120ATLQ

WF25Q3120ATLQ

更新时间：2025-07-09 09:32:17

品牌：WALSIN

描述：Thin Film Professional AEC-Q200 Chip Resistor / WF.Q Series 312Ω, ±0.05%, ≦±50, 1W

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

WF25Q3120ATLQ 概述

Thin Film Professional AEC-Q200 Chip Resistor / WF.Q Series 312Ω, ±0.05%, ≦±50, 1W

WF25Q3120ATLQ 数据手册

通过下载WF25Q3120ATLQ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

WF25Q/R_Q, WF20Q/R_Q, WF10Q/R_Q,

WF12Q/R_Q, WF08Q/R_Q, WF06Q/R_Q,

WF04Q/R_Q.

±1%,±0.5%,±0.25%,±0.1%,±0.05%,±0.02%.

TC50.TC25.

High Precision Power Thin Film Chip Resistors

Size 2512, 2010, 1210, 1206, 0805, 0603,

0402.

AEC-Q200 Compliant

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

Page 1 of 10

ASC_WFxxQ&R_Q

Mar – 2018

Approval Sheet

FEATURE

1. SMD metal film resistor

2. High reliability and stability of 0.5% and below per customer request

3. High performance of TCR: 50 & 25 ppm/°C and below per customer request

4. Low current noise

5. RoHS compliant and lead free

6. AEC-Q200 compliant

APPLICATION

•

Automotive

Medical equipment

Measuring instrument

Communication devices

Electronic devices

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. Construction of Chip-R WFxx_Q

Page 2 of 10

ASC_WFxxQ&R_Q

Mar – 2018

Approval Sheet

QUICK REFERENCE DATA

Item

General Specification

Series No.

WF25

Q&R_Q

2512

WF20

Q&R_Q

2010

WF10

WF12

Q&R_Q

1206

WF08

WF06

WF04

Q&R_Q

0402

Q&R_Q

1210

Q&R_Q

0805

Q&R_Q

0603

Size Code

(6432)

(5025)

(3225)

(3216)

(2012)

(1608)

(1005)

Resistance Tolerance

Resistance Range

TCR

±1.0%, ±0.5%, ±0.25%, ±0.1%, ±0.05%, ±0.02%

10Ω ~

1.5MΩ

10Ω ~

1.5MΩ

10Ω ~

1MΩ

4.7Ω ~

1MΩ

4.7Ω ~

1MΩ

4.7Ω ~

330KΩ

10Ω ~

100KΩ

±50 / 25 ppm/°C

Max. Dissipation at

3/4W

2/5W

1/4W

1/8W

1/10W

T_amb=70°C

Max. Operation Voltage

200V

400V

200V

400V

200V

400V

200V

150V

300V

75V

50V

Max. Overload Voltage

Operating Temperature

400V

150V

100V

- 55~ +155’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

RCWV = RatedPower ×Resistance Value or Max. RCWV listed above, whichever is lower.

DIMENSIONS:(unit:mm)

WF25_Q

WF20_Q

WF10_Q

WF12_Q

WF08_Q

WF06_Q

WF04_Q

Type

6.35 ± 0.10 5.00 ± 0.10 3.10 ± 0.10 3.05 ± 0.15 2.00 ± 0.10 1.55 ± 0.10 1.00 ± 0.10

3.20 ± 0.15 2.50 ± 0.15 2.60 ± 0.15 1.55 ± 0.15 1.25 ± 0.10 0.80 ± 0.10 0.50 ± 0.05

0.60 ± 0.20 0.60 ± 0.20 0.50 ± 0.20 0.40 ± 0.20 0.25 ± 0.20 0.25 ± 0.15 0.30 ± 0.15

0.90 ± 0.25 0.60 ± 0.25 0.50 ± 0.20 0.40 ± 0.20 0.40 ± 0.20 0.30 ± 0.15 0.30 ± 0.15

0.55 ± 0.10 0.55 ± 0.10 0.55 ± 0.10 0.55 ± 0.15 0.50 ± 0.15 0.45 ± 0.15 0.35 ± 0.05

Protective coat

End termination

Resistive layer

Ceramic Substrate

1001

Page 3 of 10

ASC_WFxxQ&R_Q

Mar – 2018

Approval Sheet

MARKING

3-digits marking for 0603 size

WFxxQ/R has same marking rule as WRxx ±1%.

Nominal resistance

Description

1.E-24 series

2.E-96 series

As 0603 WR06X ±5%.

The 1st two digit codes are referring to the CODE on the table, the 3rd code is the index of resistance

value :

Y=10^-2，X=10^-1，A=10⁰，B=10¹，C=10²，D=10³，E=10⁴，F=10⁵

EX :

17.8Ω=25X，178Ω=25A，1K78 =25B

17K8=25C，178K=25D，1M78=25E

3. Remark

There is no marking for the items are not under E-24 and E-96 series

CODE R_value CODE R_value CODE R_Value CODE R_value CODE R_value CODE R_value CODE R_value CODE R_value

100

102

105

107

110

113

115

118

121

124

127

130

133

137

140

143

147

150

154

158

162

165

169

174

178

182

187

191

196

200

205

210

215

221

226

232

237

243

249

255

261

267

274

280

287

294

301

309

316

324

332

340

348

357

365

374

383

392

402

412

422

432

442

453

464

475

487

499

511

523

536

549

562

576

590

604

619

634

649

665

681

698

715

732

750

768

787

806

825

845

866

887

909

931

953

976

4-digits marking for 2512, 2010, 1210, 1206, 0805 size

For E24+E96, each resistor is marked with a four digits code on the protective coating to designate the

nominal resistance value. For values below 97Ω6 the R is used as a digit. For values of 100Ω or greater, the

first 3 digits are significant, the fourth digit indicates the number of multiple to follow.

Example

RESISTANCE

100Ω

6800Ω

47000Ω

1000

6801

4702

4-digits marking

No marking code for 0402 and 0201 size

FUNCTIONAL DESCRIPTION

Product characterization

Standard values of nominal resistance are taken from the E192 & E24 series for resistors with a tolerance of

±1.0%, ±0.5%, ±0.25%, ±0.1%, ±0.05%, ±0.02%. The values of the E24/E192 series are in accordance with

“IEC publication 60063”.

Page 4 of 10

ASC_WFxxQ&R_Q

Mar – 2018

Approval Sheet

DERATING:

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

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_WFxxQ&R_Q

Mar – 2018

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 within lead-free solder bath. The

test condition for no leaching is 260°C for 30 seconds. Typical examples of soldering profile and condition that

provide reliable joints without any damage are given in Fig 3. and Table 1.

Fig. 3 Infrared soldering profile for Chip Resistors

Table 1. Infrared soldering condition for Chip Resistors

Temperature Condition

Average ramp-up rate (217°C to 260°C)

Between 150 and 200°C

> 217°C

Exposure Time

Less than 3°C/second

Between 60-120 seconds

Between 60-150 seconds

260ºC +0/-5°C

Peak Temperature

Min. 30 seconds

Time within 245°C

Ramp-down rate (Peak to 217°C)

Time from 25°C to Peak

Less than 6°C/second

No greater than 480 seconds

Page 6 of 10

ASC_WFxxQ&R_Q

Mar – 2018

Approval Sheet

CATALOGUE NUMBERS

The resistors have a catalogue number starting with .

WF06

Q/R

xxxx

Size code

Type code

Resistance code

Tolerance

U : ±0.02%

A : ±0.05%

B : ±0.10%

C : ±0.25%

D : ±0.50%

F : ±1.00%

Packaging code

T : 7” Reel & Taped

Termination Special code

code

R is first code followed

by 3 significant digits.

WF25: 2512

WF20: 2010

WF10: 1210

WF12: 1206

WF08: 0805

WF06: 0603

WF04: 0402

Q: TCR = 50 ppm

R: TCR = 25 ppm

& High power

Q : AEC-Q200

L : lead free

V: 7” Reel & Taped

1Kpcs

Compliant

100Ω

=1000

37.4KΩ =3742

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

5,000pcs/reel for WF10_Q, WF12_Q, WF08_Q, WF06_Q,

10,000pcs/reel for WF04_Q;

2. Reeled tape packaging: 12mm width paper taping

4,000pcs/reel for WF25_Q, WF20_Q.

Page 7 of 10

ASC_WFxxQ&R_Q

Mar – 2018

Approval Sheet

TEST AND REQUIREMENTS

REQUIREMENT

Resistor

TEST

PROCEDURE

Within the specified tolerance

Electrical Characteristics

- DC resistance values measurement

IEC 60115-1 4.8

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

Natural resistance change per change in degree centigrade.

R₂− R₁

×10⁶

(ppm/°C) t₁: 20°C+5°C-1°C

R₁

(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 a 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. ±(0.25%+0.05Ω)

IEC60115-1 4.13

Resistance to soldering

heat(R.S.H)

MIL-STD-202 Method 210

Un-mounted chips completely immersed for 10±1second in a SAC no visible damage

solder bath at 260℃±5ºC

∆ R/R max. ±(0.25%+0.05Ω)

Solderability

Un-mounted chips completely immersed for 2±0.5 second in a good tinning (>95% covered)

SAC solder bath at 235℃±5℃

IEC 60068-2-58

no visible damage

Temperature cycling

MIL-STD-202 Method 107

Test –55 to 125℃/ dwell time 30min/ Max transfer time 20sec

no visible damage

1000 cycles

∆R/R max. ±(0.3%+0.05Ω)

∆R/R max. ±(0.5%+0.05Ω)

Test 1000 hours/ at 85℃/85% RH./ 10% of operation power.

Measurement at 24±4 hours after test conclusion

Biased Humidity

MIL-STD-202-Method 103

Operational Life

MIL-STD-202 -108

1000 hours at 125±2°C, loaded with rated power cont inuously

∆R/R max. ±(0.5%+0.05Ω)

High Temperature

Exposure

1000 hours at 155℃, un-powered

∆R/R max. ±(0.3%+0.05Ω)

∆R/R max. ±(0.25%+0.05Ω)

MIL-STD-202-108

Mechanical Shock

1/2 Sine Pulse / 100g Peak / Velocity 12.3ft/sec

MIL-STD-202 Method 213

Vibration

MIL-STD-202 Method 204

5 g's for 20 min , 12 cycles each of 3 orientations

∆R/R max. ±(0.1%+0.05Ω)

No broken

Terminal strength

1 kg for 60 s

AEC-Q200-006

∆R/R max. ±(0.1%+0.05Ω)

Board flex

Bending 2mm for 60 sec

AEC-Q200-005

Page 8 of 10

ASC_WFxxQ&R_Q

Mar – 2018

Approval Sheet

PACKAGING

Paper Tape specifications (unit :mm)

Series No.

WF25

WF20

WF12

WF10

WF08

WF06

WF04

Tape

Plastic

Paper

6.90±0.20

5.50±0.20

3.60±0.20

2.40±0.20

1.90±0.20

1.20±0.10

3.60±0.20

2.80±0.20

2.00±0.20

3.00±0.20

1.65±0.20

1.10±0.20

0.7±0.10

12.00±0.30

8.00±0.30

8.00±0.20

5.50±0.10

3.50±0.20

3.50±0.05

1.75±0.10

Series No.

WF25

ΦD

+0.1

4.00±0.10

Max 1.2

Φ1.50

−0.0

+0.1

−0.0

WF20

WF12

WF10

WF08

WF06

4.00±0.10

Max 1.2

Max. 1.0

0.65±0.05

+0.1

−0.0

+0.1

−0.0

+0.1

−0.0

+0.1

−0.0

+0.1

−0.0

2.00±0.10

4.00±0.10

0.40±0.05

WF04

Page 9 of 10

ASC_WFxxQ&R_Q

Mar – 2018

Approval Sheet

Reel dimensions

WF25_Q , WF20_Q

Symbol

(unit : mm)

13.0±0.2

14.0±0.5

Φ178.0±2.0

Φ60.0±1.0

WF12_Q , WF10_Q , WF08_Q, WF06_Q , WF04_Q

Symbol

(unit : mm)

13.0±0.2

9.0±0.5

Φ178.0±2.0

Φ60.0±1.0

Taping quantity

Chip resistors 4,000 pcs per reel ( WF25_Q, WF20_Q )

Chip resistors 5,000 pcs per reel ( WF10_Q, WF12Q_Q, WF08_Q, WF06_Q )

Chip resistors 10,000 pcs per reel ( WF04_Q )

Page 10 of 10

ASC_WFxxQ&R_Q

Mar – 2018

WF25Q3120ATLQ 相关器件

型号	制造商	描述	价格	文档
WF25Q3120BTL	WALSIN	Thin Film Precision Chip Resistor /WF Series 312Ω, ±0.1%, ≦±50, 1W	获取价格
WF25Q3120BTLQ	WALSIN	Thin Film Professional AEC-Q200 Chip Resistor / WF.Q Series 312Ω, ±0.1%, ≦±50, 1W	获取价格
WF25Q3120CTL	WALSIN	Thin Film Precision Chip Resistor /WF Series 312Ω, ±0.25%, ≦±50, 1W	获取价格
WF25Q3120CTLQ	WALSIN	Thin Film Professional AEC-Q200 Chip Resistor / WF.Q Series 312Ω, ±0.25%, ≦±50, 1W	获取价格
WF25Q3120DTL	WALSIN	Thin Film Precision Chip Resistor /WF Series 312Ω, ±0.5%, ≦±50, 1W	获取价格
WF25Q3120DTLQ	WALSIN	Thin Film Professional AEC-Q200 Chip Resistor / WF.Q Series 312Ω, ±0.5%, ≦±50, 1W	获取价格
WF25Q3120FTL	WALSIN	Thin Film Precision Chip Resistor /WF Series 312Ω, ±1%, ≦±50, 1W	获取价格
WF25Q3120FTLQ	WALSIN	Thin Film Professional AEC-Q200 Chip Resistor / WF.Q Series 312Ω, ±1%, ≦±50, 1W	获取价格
WF25Q3120TTL	WALSIN	Thin Film Precision Chip Resistor /WF Series 312Ω, ±0.01%, ≦±50, 1W	获取价格
WF25Q3120UTL	WALSIN	Thin Film Precision Chip Resistor /WF Series 312Ω, ±0.02%, ≦±50, 1W	获取价格