Datasheet > RA30X250AN39010%4SUP.C.

RA30X250AN39010%4SUP.C.

更新时间： 2023-07-15 00:00:00

品牌	Logo	应用领域
威世 - VISHAY		/
页数	文件大小	规格书
3页	70K
描述
RES,PANEL MOUNT,TAN/NICR,390 OHMS,10% +/-TOL,75PPM TC

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Adjustable Wirewound Enamelled Resistors

Vishay Sfernice

MECHANICAL SPECIFICATIONS

ELECTRICAL SPECIFICATIONS

Resistance Range

Mechanical Protection

Resistive Element

Connections

vitreous enamel

33 to 22k

(E6-E24 series)

Ni-Cr wire

B band

AN or CS collar

Tolerance

Standard

10%

Average Unit Weight

40 to 415g

Power Rating

21Wto180Wa2t 5°C

Temperature Coefﬁcient

+ 75ppm/°C (typical)

ENVIRONMENTAL SPECIFICATIONS

Temperature Limits

– 55°C + 350°C

Climatic Category

– 55°C/+ 200°C/56 days

PERFORMANCE

TESTS

CONDITIONS

REQUIREMENTS

TYPICAL VALUES AND DRIFTS

10Pr 5s

Short Time Overload

Climatic Sequence

0.5%

2% or 0.05

Voltage < 6000V

3% or 0.05

Insulation resistance > 100M

– 55°C

+ 200°C

5 cycles

56 days

95% R.H.

Humidity

(Steady State)

2% or 0.05

Insulation resistance > 100M

0.5%

Load at Pr

Thermal Shock

Resistor Strength

Vibration

0.5%

0.25%

0.5%

2% or 0.05

1%* or 0.05

1% or 0.05

followed by exposure at – 55°C/15

200N 10N

55/10

Traction 40Ncm

Torque 60Ncm

Terminals Strength

0.25%

1000 hours at Pr

25°C

Load Life

1.5%

90 /30

*1% of total resistance and 2% between sliding collar and fixed connection.

SPECIAL FEATURES

RA STYLE

16 x 94

25 x 138

30 x 250

25 x 168

13 x 70

20 x 117

Designation NF C 93-214

–

RBA 13 x 70

RBA 20 x 117

RBA 25 x 168

Power Rating

NF C 93-214

–

75W

–

13W

21W

25W

50W

at 25°C

Maximum Power

Rating at 25°C

35W

3.9k

180W

120W

Ohmic Range

150 6.8k

330 22k

3.9k

100

4.7k

220

10k

(E6, E24 series)

ADMISSIBLE RATED AMPERAGE

This must in all cases be less than:

In =

Pr (W)

Rn ( )

√

SLIDING COLLAR

Resistors are normally supplied with 1 sliding collar ﬁtted and locked in a speciﬁc position.

Additional collars can be supplied and adjusted at the factory to special order (on request).*

*Quote ohmic value and tolerance of each resistance section, and Rn value.

MAXIMUM ADDITIONAL COLLARS

MODEL

13 x 70

16 x 94

20 x 117

25 x 138

25 x 168

AND TYPE

30 x 250

Additional

sliding collar

www.vishay.com

Document Number: 50019

Revision 12-Jan-04

For technical questions, contact sfer@vishay.com

123

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