WK20V101_FTLJ [WALSIN]

Special material and design for high working voltage require;


型号：	WK20V101_FTLJ
厂家：	Walsin Technology
描述：	Special material and design for high working voltage require
文件：	总8页 (文件大小：381K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Approval sheet

WK25V, WK20V, WK12V, WK08V, WK06V

±5%, ±2%, ±1%

Thick Film High Voltage Chip Resistors

Automotive Grade AEC Q200 Compliant

Size 2512,2010,1206, 0805, 0603

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

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FEATURE

1. Special material and design for high working voltage require.

2. Compatible with flow and reflow soldering

3. Suitable for lead free soldering.

4. High limiting voltage

5. Automotive AEC Q200 compliant

APPLICATION

•

Power supply

Automotive industry

Measurement instrument

Back light inverter

•

Medical or Military equipment

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 Tin (lead free) alloy.

Fig 1. Construction of Chip-R

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QUICK REFERENCE DATA

Item

General Specification

WK12V

Series No.

WK25V

WK 20V

WK08V

WK06V

0603 (1608)

±1%, ±2%, ±5%

47Ω ~10 MΩ

Size code

2512(6432 )

2010 ( 5025 )

±1%, ±2%, ±5%

1206 ( 3216 )

±1%, ±2%, ±5%

0805 ( 2012 )

±1%, ±2%, ±5%

Resistance Tolerance

Resistance Range

±1%, ±2%, ±5%

±5%: 47Ω ~ 51 MΩ ( E24)

±1%, ±2%: 47Ω ~ 10 MΩ (E24+E96)

TCR (ppm/°C)

+500~ -200

±200

47Ω ~ 97.6Ω

100Ω ~ 549Ω

560Ω ~ 51MΩ

47Ω ~ 464Ω

470Ω ~ 51MΩ

47Ω ~ 97.6Ω

100Ω ~ 51MΩ

47Ω ~ 97.6Ω

100Ω ~ 51MΩ

47Ω ~ 464Ω

470Ω ~ 10MΩ

±100

Max. Dissipation at

T_amb=70°C

1 W

800V

1600V

1/2 W

500V

1/4 W

500V

1/8 W

400V

800V

1/10W

200V

400V

Max. Operation Voltage

(DC or RMS)

Max. Overload Voltage

(DC or RMS)

1000V

Climatic category (IEC

60068)

55/155/56

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.

MECHANICAL DATA (unit : mm)

1 0 5

WK25V

WK20V

WK12V

WK08V

WK06V

Symbol

6.30 ± 0.15

3.20 ± 0.15

0.55 ± 0.15

0.60 ± 0.20

5.00 ± 0.15

2.50 ± 0.150

0.55 ± 0.15

0.60 ± 0.20

3.20 ± 0.15

1.60 ± 0.15

0.55 ± 0.10

0.50 ± 0.25

2.00 ± 0.10

1.25 ± 0.10

0.55 ± 0.10

0.40 ± 0.20

1.60 ± 0.10

0.80 +0.15/-0.05

0.45 ± 0.10

0.30 ± 0.10

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MARKING

For E24 series, Each resistor is marked with a three–digit code on the protective coating to designate the

nominal resistance value.

For E96 series, Each resistor is marked with a four–digit code on the protective coating to designate the

nominal resistance value. WK06V E96 has no marking!

Example:

105 = 1MΩ

105

FUNCTIONAL DESCRIPTION

Product characterization

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

±1%, ±5%. 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

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.

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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

CATALOGUE NUMBERS

The resistors have a catalogue number starting with .

WK25

Size code

105

Type code

Resistance code

Tolerance Packaging code

Termination code Special code

WK25 : 2512

WK20 : 2010

WK12 : 1206

WK08 : 0805

WK06 : 0603

V :High

Voltage

5%, E24: 2 significant

digits followed by

no. of zeros

T : 7” inch reel

= Sn base

(lead free)

= Automotive

grade AEC

Q200 compliant

J : ±5%

1206:paper tape,

5kpcs/reel

G : ±2%

F : ±1%

100Ω = 101_

10KΩ = 103

2010,2512 :plastic

tape, 4kpcs/reel

1%, E24+E96: 3

significant digits

followed by no. of

zeros

100Ω

=1000

=3742

37.4KΩ

Tape packaging WK12, WK08, WK06 : 8mm width paper taping 5,000pcs per reel.

WK25；WK20: 12mm width plastic taping 4,000pcs per reel.

Marking code : For E24 series , 3 digit marking code for J tol.. E96 series, 4 digit marking code for F tol.

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TEST AND REQUIREMENTS – refer to AEC Q200 test standard

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0603: 600V, 0805: 1500V

1206/2010/2512: 3000V

0603: 10N,

0805/1206/2010/2512:

17.7N, time: 60sec

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PACKAGING

Tape specifications (unit :mm)

Series No.

WK25V

6.90±0.20

3.60±0.20

12.00±0.30

5.50±0.10

1.75±0.10

5.50±0.20

3.60±0.20

2.50±0.20

1.90±0.20

3.10±0.20

2.00±0.15

1.65±0.15

1.15±0.15

WK20V

WK12V

WK08V

8.00±0.30

ΦD

3.50±0.20

1.75±0.10

WK06V

Series No.

WK25V

1.1±0.15

WK20V

+0.1

−0.0

4.00±0.10

WK12V

Φ1.50

Max. 1.0

Max. 0.8

WK08V

WK06V

Reel dimensions

(unit : mm)

Reel / Tape

7” reel for 12mm tape

13+1/0

13.0±0.2

Φ180.0+0/-1.5

Φ60.0+1/0

7” reel for 8mm tape

9+1/0

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