Datasheet > WK73R1JTTD4992F

WK73R1JTTD4992F

更新时间： 2025-09-18 19:39:27

品牌	Logo	应用领域
大兴电工 - KOA		/
页数	文件大小	规格书
2页	260K
描述
电阻阻值(Ω):49.9 kOhms;电阻精度(%):±1%;温度系数(ppm/℃):±100ppm/°C;工作温度最小值(℃):-55°C;工作温度最大值(℃):155°C;

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WK73R1JTTD4992F 数据手册

WK73R

wide terminal type flat chip resistors

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%

• 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

Type

Dimensions inches (mm)

(Inch Size Code)

dimensions and construction

.020±.002 .039±.002 .006±.002 .006±.002 .014±.002

(0204)

(0.5 0.05) (1.0 0.05) (0.15 0.05) (0.15 0.05) (0.35 0.05)

(0306)

.031±.004 .063±.004 .006±.004 .008±.004 .018±.004

(0.8 0.1)

(1.6 0.1) (0.15 0.1) (0.2 0.1) (0.45 0.1)

(0508)

.049±.006 .079±.006 .012±.008 .014±.008 .022±.004

(1.25 0.15) (2.0 0.15) (0.3 0.2) (0.35 0.2) (0.55 0.1)

.063±.006 .126±.008 .012±.008 .018±.006

Solder

Plating

(0612)

(1.6 0.15) (3.2 0.2)

(0.3 0.2) (0.45 0.15)

Plating

(1020)

.098±.006 .197±.006 .016±.008

(2.5 0.15) (5.0 0.15) (0.4 0.2)

Inner

Electrode

.024±.004

(0.6 0.1)

Resistive

Film

(1218)

.122±.006 .181±.006 .016±.008

(3.1 0.15) (4.6 0.15) (0.4 0.2)

.030±.006

(0.75 0.15)

Protective

Coating

Ceramic

Substrate

(1225)

.122±.006 .252±.006 .018±.008

(3.1 0.15) (6.3 0.15) (0.45 0.2)

Derating Curve

100

WK73R2B (1W), WK73R3A (2W)

100

2J (100°C)

2B, 3A (115°C)

1E, 1J, 2A, 2B,

2H, 3A (125°C)

-60 -40 -20

-55

20 40 60 80 100 120 140 160

-60 -40 -20

-55

20 40 60 80 100 120 140 160

-60 -40 -20

20 40 60 80

100 120 140 160

115 155

Ambient Temperature

(°C)

155

125

155

-55

Terminal Part Temperature

(°C)

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.

For resistors operated terminal temperature of described for each size or above, a power rating

shall be derated in accordance with the derating curve above.

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

beginning of our catalog before use.

If you want to use at rated power (*1), use derating curves based on the terminal part temperature

on the right side graph.

ordering information

WK73R

33L0

Termination

Material

Nominal

Resistance

Tolerance

Type

Size

Packaging

TP: 0204: 7" 2mm pitch

punched paper

WK73R

1E: 0.33W

1J: 0.5W

2A: 0.75W, 1W

2B: 0.75W, 1W

2H: 1W

T: Sn

±1%: 3 significant figures + 1

multiplier “R” indicates decimal

on value <100Ω

D: ±0.5%

F: ±1%

J: ±5%

TD: 0306, 0508, 0612: 7"

4mm pitch punched paper

±5%: 2 significant figures + 1

multiplier “R” indicates decimal

on values <10Ω

TE: 1020, 1218, 1225:

7" embossed plastic

For further information on

packaging, please refer

to Appendix A

2J: 1W

All values less than 0.1Ω

(100mΩ) are expressed in mΩ

with “L” as decimal.

3A: 1.5W, 2W

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.

12/17/19

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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