Datasheet > WK73S2BTTD2R20F

WK73S2BTTD2R20F

更新时间： 2025-07-18 19:51:11

品牌	Logo	应用领域
大兴电工 - KOA		/
页数	文件大小	规格书
2页	166K
描述
RES 2.2 OHM 1% 3/4W 1206

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WK73S2BTTD2R20F 数据手册

WK73S

wide terminal type flat chip resistors (low resistance)

features

• Wide-side termination (reverse-geometry)

type flat chip resistor

• High reliability and performance with T.C.R.

±100 x 10^-6/K, resistance tolerance ±0.5%

• Suitable for both reflow and flow solderings

• Products with lead-free terminations meet EU RoHS

requirements. EU RoHS regulation is not intended for

Pb-glass contained in electrode, resistor element and glass.

• AEC-Q200 Tested

dimensions and construction

Type

(Inch Size

Code)

Dimensions inches (mm)

Resistance

Range (Ω)

L±0.15

t±0.1

.016±.006

(0.4±0.15)

.012±.008

(0.3±0.2)

20m~61.9m

62m~9.76m

10m~9.76m

.049±.006

(1.25±0.15)

.079±.006

(2.0±0.15)

.014±.008

(0.35±0.2)

.022±.004

(0.55±0.1)

(0508)

Solder

Plating

.063±.006

(1.6±0.15)

.098±.006

(2.5±0.15)

.122±.006

(3.1±0.15)

.126±.008

(3.2±0.2)

.197±.006

(5.0±0.15)

.252±.006

(6.3±0.15)

.012±.008

(0.3±0.2)

.018±.006

(0.45±0.15)

(0612)

Plating

Inner

Electrode

.016±.008

(0.4±0.2)

.018±.008

(0.45±0.2)

(1020)

.024±.004

(0.6±0.1)

Resistive

Film

.030±.006

(0.75±0.15)

Protective

Coating

(1225)

10m~9.76m

Ceramic

Substrate

Derating Curve

100

2A / 1.25W

2H / 3W

3A / 4W

2B / 0.75W

2H / 1W

3A / 1.5W

2B / 0.75W

2H / 1W

3A /1.5W

2B / 1.5W

-60 -40 -20

20 40 60 80 100 120 140 160

125 155

-60 -40 -20

20 40 60 80 100 120 140 160

-60 -40 -20

20 40 60 80 100 120 140 160

125 155

-55

Ambient Temperature

(°C)

155

-55

Terminal Part Temperature

(°C)

For resistors operated at an ambient temperature

of 70°C or above, a power rating shall be derated

in accordance with the above derating curve.

When the terminal part temperature of the resistor exceeds the rated terminal part temperature

shown above, the power shall be derated according to the derating curve.

Please refer to “Introduction of the derating curves based on the terminal part temperature” in the

beginning of the catalog before use.

ordering information

WK73S

33L0

Termination

Material

Nominal

Resistance

Tolerance

Type

Size

Packaging

TD: 0508, 0612: 7" 4mm pitch

punched paper

WK73S

2A: 1.25W¹

2B: 0.75W, 1.5W¹

2H: 1W, 3W¹

T: Sn

±1%: 3 significant figures + 1

multiplier “R” indicates decimal

on value <100Ω

D: ±0.5%

F: ±1%

J: ±5%

TE: 1020, 1225: 7" embossed

plastic

±5%: 2 significant figures + 1

multiplier “R” indicates decimal

on values <10Ω

3A: 1.5W, 4W¹

For further information on

packaging, please refer to

Appendix A

If you use at the rated power, please keep the

condition that the terminal of the resistor is below

the rated terminal part temperature.

Please refer to the derating curves based

on the terminal temperature.

All values less than 0.1Ω (100mΩ)

are expressed in mΩ with “L” as

decimal.

Ex: 33mΩ, 1% = 33L0

Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.

3/20/25

135

KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com

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