WM04B20R0BTL [WALSIN]

High Precision Thin Film MELF Resistors;


型号：	WM04B20R0BTL
厂家：	Walsin Technology
描述：	High Precision Thin Film MELF Resistors
文件：	总12页 (文件大小：1606K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Approval Sheet

WM07B, WM04B, WM07C, WM04C

ê1%, ê0.5%, ê0.25%, ê0.1%

TC50 , TC25

High Precision Thin Film MELF Resistors

Size: 0207, 0204

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

Page 1 of 12

ASC_WMxxB&C

Aug - 2018

Approval Sheet

FEATURE

1. SMD enabled structure thin film resistor

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

3. High precision of TCR: 50 & 25 ppm/èC and below per customer request

4. Best in class pulse load capability

5. RoHS compliant and lead free

6. AEC-Q200 compliant

APPLICATION

Medical equipment

Measuring instrument

Communication device

Power / Meter Converter

DESCRIPTION

A uniform alloy film is deposited on a high grade ceramic body (Al2O3) and achieved the desired temperature coefficient by

annealing. Nickel plated termination caps are firmly attached on the ceramic body. It is achieved the target value by

smoothly cutting a helical groove in the resistive layer without damaging the ceramic body. The resistive film is covered by

a protective coating designed for electrical, mechanical and climatic protection. For environmental soldering issue, Nickel

plated terminations receive a final pure tin on it. Four color code rings designate the resistance value in accordance with

IEC 60062.

Fig 1. Construction of MELF

Page 2 of 12

ASC_WMxxB&C

Aug - 2018

Approval Sheet

QUICK REFERENCE DATA

Item

Series No.

General Specification

WM07C WM04B

WM07B

WM04C

Size code

0207 ( 6123 )

ê1%, ê0.5%, ê0.25%, ê0.1%

0204 ( 3715 )

Resistance Tolerance

Resistance Range

0.2Ω ~1M

±50ppm/C

0.2Ω ~1M

±50ppm/C

10W~1MW

±25ppm/C

TCR (ppm/èC)

1/2W

300V

600V

1/4W

Max. dissipation at T_amb=70èC

Max. Operating Voltage (DC or RMS)

Max. Overload Voltage (DC or RMS)

Operating temperature

200V

400V

- 55 ~ +125

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 ìResistance Value or Max. RCWV listed above, whichever is lower.

DIMENSIONS:( unit:mm)

0207

0204

Type

5.90 0.20

2.20 0.10

1.40 0.10

3.50 0.10

1.40 0.15

0.90 0.10

Weight (g)

1000pcs

85.14

20.13

Page 3 of 12

ASC_WMxxB&C

Aug - 2018

Approval Sheet

MARKING & RESISTANCE RANGE / TOLERANCE

2 3 4 = 4 color coding

2 4 9 10¹

= 2.49K

Standard Resistance Values

±1% ±0.5% ±0.25% ±0.1%

E192

100

101

102

104

105

106

107

109

110

111

113

114

115

117

118

120

121

123

124

126

127

129

130

132

133

135

137

138

140

142

143

145

147

149

150

152

154

156

158

160

162

164

165

167

169

174

178

180

182

184

187

189

191

193

196

198

200

203

205

208

210

243

246

249

252

255

258

261

264

267

271

274

277

280

284

287

291

294

298

301

305

309

312

316

320

324

328

332

336

340

344

348

352

357

361

365

370

374

379

383

388

392

397

402

407

412

417

422

427

432

437

442

448

453

459

464

470

475

481

487

493

499

505

511

517

523

530

536

542

549

556

562

569

576

583

590

597

604

612

619

626

634

642

649

657

665

673

681

690

698

706

715

723

732

741

750

759

768

777

787

796

806

816

825

835

845

856

866

876

887

898

909

920

931

942

953

965

976

988

213

215

218

221

223

226

229

232

234

237

240

Color 1

Coding

Color 2

Coding

Color 3

Coding

Color 4

Coding

10⁰

10¹

10²

10³

10⁴

10⁵

10^-1

10^-2

Resistance values more than two digiting tags (<1R) or more than three digiting tags (>1R) will not

provide marking.

Page 4 of 12

ASC_WMxxB&C

Aug - 2018

Approval Sheet

FUNCTIONAL DESCRIPTION

Product characterization

Standard values of nominal resistance are taken from the E192 series for resistors with a tolerance of ê1%,

ê0.5%, ê0.25%, ê0.1%. The values of the E192 series are in accordance with “IEC publication 60063”.

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.

Cylindrical placement can be on ceramic rods and printed-circuit boards (PCBs).

Electrical connection to the circuit is by individual soldering condition.

The end terminations guarantee a reliable contact.

RECOMMEND LAND PATTERN

Type

0207

3.0

0204

1.6

A (mm)

B (mm)

C (mm)

1.7

1.2

2.4

1.6

Page 5 of 12

ASC_WMxxB&C

Aug - 2018

Approval Sheet

SOLDERING CONDITION

The robust construction of cylindrical resistors allows them to be completely immersed in a solder bath of 260èC

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 235èC during 2 seconds within lead-free solder bath. The

test condition for no leaching is 260èC 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.

For Ni/Sn series soldering

Fig. 3 Infrared soldering profile for MELF Resistors

Table 1. Infrared soldering condition for MELF Resistors

Temperature Condition

Average ramp-up rate (217èC to 260èC)

Between 150 and 200èC

> 217èC

Exposure Time

Less than 3èC/second

Between 60-120 seconds

Between 60-150 seconds

260ºC +0/-5èC

Peak Temperature

Min. 30 seconds

Time within 245èC

Ramp-down rate (Peak to 217èC)

Time from 25èC to Peak

Less than 6èC/second

No greater than 480 seconds

Page 6 of 12

ASC_WMxxB&C

Aug - 2018

Approval Sheet

CATALOGUE NUMBERS

The resistors have a catalogue number starting with .

WM07

xxxx

Size code

WM07 : 0207

WM04 : 0204

TCR code

B : TCR 50 ppm

C : TCR 25 ppm

Resistance code

Tolerance

F : ê1.0%

D : ê0.5%

C : ê0.25%

B : ê0.1%

Packaging code

T : Taped & Reeled

Termination code

L : Sn base

(lead free)

102W

37.4KW

220W

20W

=1020

=3742

=2200

=20R0

=R100

=R033

0.1W

0.033W

1. Reeled tape packaging: 12mm width plastic taping for WM07.

2. Reeled tape packaging: 8mm width plastic taping for WM04.

2,000pcs/reel for WM07.

3,000pcs/reel for WM04.

Page 7 of 12

ASC_WMxxB&C

Aug - 2018

Approval Sheet

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

REQUIREMENT

TEST

PROCEDURE

10Ω to 270KΩ

<10Ω & >270KΩ

Electrical

- DC resistance values measurement

Characteristics

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

Natural resistance change per change in degree centigrade.

IEC 60115-1 4.8

Refer to

R₂- R₁

R₁t₂- t₁

ì10⁶

“ QUICK REFERENCE DATA “

(ppm/èC) t₁: 20°C+5°C-1°C

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.

±0.1%+0.05Ω

±0.15%+0.05Ω

±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 solder bath at 260 ±5ºC

no visible damage

good tinning (>95% covered)

no visible damage

Solderability

Un-mounted chips completely immersed for 2±0.5 second in a

SAC solder bath at 235 ±5

IEC-60115-1 4.17

Temperature cycling

JESD22 method JA-

104

±0.25%+0.05Ω

±0.5%+0.05Ω

Test 1000 cycles (-55

Maximum. Measurement at 24±4 hours after test conclusion

to +125

), dwell time 30min.

no visible damage

Biased Humidity

1000 +48/-0 hours, loaded with 10% rated power in humidity

chamber controller at +85 /85%RH

±0.5%+0.05Ω

±0.25%+0.05Ω

±1%+0.05Ω

MIL-STD-202 Method

103

Endurance

IEC60115-1 4.25

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

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

±0.5%+0.05Ω

High Temperature

Exposure

MIL-STD-202 Method

108

1000 hours @ +125 , un-powered

±0.25%+0.05Ω

±1%+0.05Ω

Moisture Resistance

AEC-Q200 -6

MIL-STD-202 Method

106

±0.25%+0.05Ω

65ê2èC, 80~100% RH, 10 cycles, 24 hours/ cycle

Mechanical Shock

MIL-STD-202 Method

213

DR/R max. ê(0.25%+0.05W)

1/2 Sine Pulse / 100g Peak / Normal duration 6

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

Vibration

MIL-STD-202 Method

204

DR/R max. ê(0.5%+0.05W)

Terminal strength

No broken

1.8 kg for 60 s

AEC-Q200-006

Board flex

±0.1%+0.05Ω

±0.5%+0.05Ω

Bending 2mm for 60 sec

AEC-Q200-005

Page 8 of 12

ASC_WMxxB&C

Aug - 2018

Approval Sheet

PACKAGING

Paper Tape specifications (unit :mm)

Series No.

WM07

6.15±0.10

3.65±0.10

2.40±0.10

1.55±0.10

12.0±0.10

8.0±0.10

1.75±0.10

5.50±0.05

3.50±0.05

WM04

Series No.

WM07

FD0

4.00±0.10

2.00±0.05

1.50±0.05

2.70±0.1

1.80±0.1

WM04

Reel dimensions

Symbol

0207

0204

13.0±0.5

13.0±0.2

13.0±0.5

9.0±0.5

F178.0±2.0

F60.0±1.0

Taping quantity

Cylinder resistors 2,000 pcs per reel ( WM07 )

Cylinder resistors 3,000 pcs per reel ( WM04 )

Page 9 of 12

ASC_WMxxB&C

Aug - 2018

Approval Sheet

PULSE LOAD PERFORMANCE:

Single Pulse

WM07

WM04

10us

100us

1ms 10ms

Pulse Duration (Sec)

100ms

10s

Single Pulse for R ≥ 10 Ω

50 rectangular pulse amplitudes are applied to the component at intervals of 60seconds,

permissible the resistance to be varied by ± (0.5% R + 0.01Ω).

Continuous Pulse

WM07

WM04

10us

100us

1ms 10ms

Pulse Duration (sec)

100ms

10s

Continuous Pulse for R ≥ 10 Ω

Continuous load is a pulse period generated by the repetitive rectangular pulse amplitude,

the applied power dissipation is at a rated power of 70 ° C.

Permissible the resistance to be varied by ± (0.5% R + 0.01Ω).

Page 10 of 12

ASC_WMxxB&C

Aug - 2018

Approval Sheet

Pulse Voltage

WM07

WM04

10us

100us

1ms

10ms 100ms

Pulse Duration (sec)

10s

Pulse Surge Overload

1.2 / 50us Pulse

1.2/50us Pulse Voltage

WM07

WM04

100

10K

Resistance (Ohm)

100K

According to IEC 60115-1 4.27 1.2 / 50us use 5 pulses at 12sec intervals pulse shapes test

resistor,permissible the resistance to be varied by ± (0.5% R + 0.01Ω).

Page 11 of 12

ASC_WMxxB&C

Aug - 2018

Approval Sheet

10 / 700us Pulse

10/700us Pulse Voltage

WM07

WM04

100

10K

Resistance (Ohm)

100K

According to IEC 60115-1 4.27 10 / 700us use 10 pulses at 60sec intervals pulse shapes

test resistor, permissible the resistance to be varied by ± (0.5% R + 0.01Ω).

Page 12 of 12

ASC_WMxxB&C

Aug - 2018

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