Datasheet > VRW68

VRW68

更新时间： 2023-12-06 20:03:52

品牌	Logo	应用领域
TTELEC		/
页数	文件大小	规格书
3页	601K
描述
High voltage thick film resistor

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VRW68 数据手册

Resistors

High Voltage

Thick Film Resistors

VRW Series

VRW37 meets requirements of BS / EN / IEC 60065

High working voltage to 10kV in compact size

High ohmic range to 68M

High pulse load capability

ꢀ Robustꢀﬂameproofꢀcoaꢁngꢀmaterial

ꢀ SurfaceꢀmountꢀZI-formꢀopꢁon

AllꢀPb-freeꢀpartsꢀcomplyꢀwithꢀEUꢀDirecꢁveꢀ2011/65/EUꢀamendedꢀbyꢀ(EU)ꢀ2015/863ꢀ(RoHS3)

Electrical Data

VRW25

0.25

VRW37

0.5

VRW68

1.0

Power rating at 70°C

Resistance range

watts

(Ohms)

100K to 30M

1600

100K to 30M

3500

100K to 68M

10000

Limiting element voltage

Isolation voltage

volts dc or ac peak

volts

ppm/°C

700

TCR

200

Resistance Tolerance

Standard Values

≤10M: 1, 5 >10M: 5

1, 5

E24 or E96

112

Thermal Impedance

Ambient temperature range

°C/watt

°C

140

-55 to +155°C

Physical Data (Dimensions (mm) & Weight (g)

Type

Max

PCB

mount

Min

bend

Wt.

nom

Nom

Max

min

centres

radius

VRW25

VRW37

VRW68

6.2

9.0

2.5

3.7

0.6±0.05

0.8±0.05

10.2

12.5

0.6

1.2

0.3

0.5

19.6

15.5

5.0

0.8±0.05

20.3

1.2

1.15

Construction

Terminations

Material:

Resistive thick film material is applied to high-grade ceramic

rods. Tin-plated steel caps are force fitted and the

termination wires are welded to the caps. The value is

obtained by a helical cut in the film and finally the resistor

body is protected by a cement coating.

Hot tin dipped copper wire

Strength:

The terminations meet the requirements

of IEC 68.2.21

Solderability:

The terminations meet the requirements

of IEC 115-1 Clause 4.17.3.2

Solvent Resistance

The body protection and marking are resistant to all normal

industrial cleaning solvents suitable for printed circuits.

Marking

1% tolerance resistors are colour coded with 5 bands. 2%

and 5% tolerance have 4 bands. IEC62 colours are used.

Flammability

The resistor coating will not burn under any condition of

applied temperature or power overload.

General Note

BI Technologies IRC Welwyn

TT Electronics reserves the right to make changes in product speciﬁcation without notice or liability.

All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.

www.ttelectronics.com/resistors

04.21

12 3

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