UB Riedon™ Miniature Silicone Coated Resistors

Bourns UB Riedon™ Miniature Silicone Coated Power Resistors with excellent pulse handling are designed to Mil-R-26/Mil-R-39007 power ratings. These resistors feature 1W to 15W power ratings, 0.02KΩ to 260KΩ resistances, ±0.01% resistance tolerance, and ±20PPM/°C low Temperature Coefficient of Resistance (TCR). The UB power resistors operate within the -55°C to 250°C temperature range and are RoHS compliant. These resistors are used in motor drives, smart meters, solar inverters, baseband units, and capacitor charge/discharge circuits.

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Qty. RoHS ECAD Model Resistance
Power Rating
Tolerance
Termination Style
Length
Diameter
Minimum Operating Temperature
Maximum Operating Temperature
Series
Packaging
Bourns Wirewound Resistors - Through Hole UB-3 2.8 OHM 1% 020D
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

2.8 Ohms 2 W 1 % Axial 10.3 mm 2.4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3 34.8 OHM 1% 020D
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

34.8 Ohms 2 W 1 % Axial 10.3 mm 2.4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3 38.3 OHM 1% 020D
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

38.3 Ohms 2 W 1 % Axial 10.3 mm 2.4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3 3.1 OHM 1% 020D
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

3.1 Ohms 2 W 1 % Axial 10.3 mm 2.4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3 3.4 OHM 1% 020D
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

3.4 Ohms 2 W 1 % Axial 10.3 mm 2.4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3 3.7 OHM 1% 020D
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

3.7 Ohms 2 W 1 % Axial 10.3 mm 2.4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3 3.9 OHM 1% 020D
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

3.9 Ohms 2 W 1 % Axial 10.3 mm 2.4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3 475 OHM 1%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

475 Ohms 2 W 1 % Axial 10.3 mm 2.4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3 4.5K 1%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

4.5 kOhms 2 W 1 % Axial 10.3 mm 2.4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3 4K 1%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

4 kOhms 2 W 1 % Axial 10.3 mm 2.4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3 4.2 OHM 1% 020D
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

4.2 Ohms 2 W 1 % Axial 10.3 mm 2.4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3 5.49K 1%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

5.49 kOhms 2 W 1 % Axial 10.3 mm 2.4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3 5.69K 1%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 1
Mult.: 1

5.69 kOhms 2 W 1 % Axial 10.3 mm 2.4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3 7.5K 1%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

7.5 kOhms 2 W 1 % Axial 10.3 mm 2.4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3 8K 1%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

8 kOhms 2 W 1 % Axial 10.3 mm 2.4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3 909 OHM 1%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

909 Ohms 2 W 1 % Axial 10.3 mm 2.4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3 9K5 1%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

9.5 kOhms 2 W 1 % Axial 10.3 mm 2.4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3C 0.25 OHM 1%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 1
Mult.: 1

250 mOhms 3 W 1 % Axial 8.9 mm 4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3C 0.2 OHM 1%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 1
Mult.: 1

200 mOhms 3 W 1 % Axial 8.9 mm 4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3C 0.33 OHM 1%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 1
Mult.: 1

330 mOhms 3 W 1 % Axial 8.9 mm 4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3C 0.3 OHM 1%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 1
Mult.: 1

300 mOhms 3 W 1 % Axial 8.9 mm 4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3C 0.5 OHM 1%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 1
Mult.: 1

500 mOhms 3 W 1 % Axial 8.9 mm 4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3C 120 OHM 1%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

120 Ohms 3 W 1 % Axial 8.9 mm 4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3C 12 OHM 1%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

12 Ohms 3 W 1 % Axial 8.9 mm 4 mm - 55 C + 250 C UB Bulk
Bourns Wirewound Resistors - Through Hole UB-3C 150 OHM 1%
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2,000
Mult.: 1,000

150 Ohms 3 W 1 % Axial 8.9 mm 4 mm - 55 C + 250 C UB Bulk