Riedon Inc.

300 Cypress Avenue

Alhambra CA 91801

(626) 284-9901

(626) 284-1704

www.riedon.com

1/16

Type

Wattage Rating

( Watts )

Maximum

Dimensions

Maximum

Working

Voltage

MIL-R-26 /

MIL-R-39007

Style

A

±0.062”

[±1.6mm]

±0.031”

[±0.8mm]

±0.002”

[±0.05mm]

UB-1

1

3.4k

0.250 [6.4]

0.085 [2.2]

0.020 [0.5]

0.025 [0.6]

33

RW-81

RWR-81

UB-2

1.5

7.5k

0.312 [7.9]

0.078 [2.0]

0.020 [0.5]

0.025 [0.6]

42

RWR-82

UB-3

2

10k

0.406 [10.3]

0.094 [2.4]

0.025 [0.6]

0.020 [0.5]

80

RW-80

RWR-80

UB-3C

3

12.5k

0.350 [8.9]

0.156 [4.0]

0.032 [0.8]

135

UB-5

4

25k

0.560 [14.2]

0.187 [4.7]

0.032 [0.8]

162

UB-5C

5

32k

0.500 [12.7]

0.218 [5.5]

0.040 [1.0]

194

UB-6

6

50k

0.625 [15.9]

0.250 [6.4]

0.040 [1.0]

258

UB-10

7

95k

0.875 [22.2]

0.312 [7.9]

0.040 [1.0]

425

RW-84

UB-12

10

150k

1.220 [31.0]

0.312 [7.9]

0.040 [1.0]

607

UB-15

15

260k

1.780 [45.2]

0.375 [9.5]

0.040 [1.0]

1050

1

Lead Diameter: 18 AWG = 0.040” / 20 AWG = 0.032” / 22 AWG = 0.025” / 24 AWG = 0.020”

Where more than one lead is listed / the top value is Standard

2

For non-inductive windings / divide maximum resistance by 2

3

For non-inductive winding where R ≤ 0.10 Ohms, Tolerance is +0.063/-0.00 [+1.6/-0.0 mm]

UB Series

• High Power Rating in a Small Package

• Excellent Pulse Handling

• High Temperature: -55°C to +250°C

• Resistances from 0.02 to 260kOhms

• Power Rating 1 to 15Watts

• Resistance Tolerances to ± 0.01%

• Low TCR: ± 20ppm/K Standard

• MIL-R-26 / MIL-R-39007 Power Ratings

• Non-Inductive Windings Available

SPECIFICATIONS

Miniature Silicone Coated Power Resistors