rev.03/2006A

Type

WattageRating

(Watts)

Maximum

Dimensions

Maximum

Working

Voltage

MIL-R-26/

MIL-R-39007

Style

A

±0.062”

[±1.6mm]

B

±0.031”

[±0.8mm]

±0.002”

[±0.05mm]

U

V

UT-1

0.1

0.25

500

0.150[3.8]

0.078[2.0]

0.018[0.46]

8.5

UT-1/2A

0.4

0.5

2.5k

0.250[6.4]

0.078[2.0]

0.020 [0.5]

0.025[0.6]

20

0.75

0.9

7.5k

0.330[8.4]

0.078[2.0]

0.020 [0.5]

0.025[0.6]

29

UT-1A

1.0

1.5

10k

0.406[10.3]

0.094[2.4]

0.020 [0.5]

0.025[0.6]

52

RW-70

UT-2

1.5

2.0

12.5k

0.350[8.9]

0.156[4.0]

0.032 [0.8]

0.025[0.6]

60

UT-2A

2.5

3.0

22k

0.500[12.7]

0.187[4.7]

0.032[0.8]

130

RW-69

UT-2B

3.0

3.75

22k

0.560[14.2]

0.187[4.7]

0.032[0.8]

140

RW-79

RWR-79

UT-2C

3.0

4.0

40k

0.500[12.7]

0.250[6.4]

0.040 [1.0]

0.032[0.8]

140

UT-2E

3.0

3.5

30k

0.500[12.7]

0.200[5.1]

0.032[0.8]

140

UT-3

4.0

5.5

45k

0.625[15.9]

0.250[6.4]

0.032 [0.8]

0.040[1.0]

210

UT-5

5.0

6.5

91k

0.875[22.2]

0.312[7.9]

0.040[1.0]

360

RW-74

RWR-74

UT-5A

5.0

6.5

65k

0.970[24.6]

0.203[5.2]

0.032[0.8]

390

UT-6

5.0

6.5

95k

1.000[25.4]

0.312[7.9]

0.040[1.0]

504

RW-67

7.0

9.0

150k

1.375[35.0]

0.375[9.5]

0.040[1.0]

650

UT-7B

7.0

9.0

100k

1.400[35.6]

0.312[7.9]

0.040[1.0]

590

UT-7C

7.0

9.0

154k

1.220[31.0]

0.312[7.9]

0.040[1.0]

620

UT-10

10

13

260k

1.780[45.2]

0.375[9.5]

0.040[1.0]

850

RW-78

RWR-78

1

LeadDiameter:18AWG=0.040”/20AWG=0.032”/22AWG=0.025”/24AWG=0.020”/25AWG=0.018”

Wheremorethanoneleadislisted/thetopvalueisStandard

2

Fornon-inductivewindings/dividemaximumresistanceby2

3

ThispartdoesnotmeettheRoHSdirective-callfactoryfordetails

UT Series

SiliconeCoatedPowerResistors

Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom.

+ 44 (0) 1342 835234

+ 44 (0) 1342 834306

info@willow.co.uk

http://www.willow.co.uk