UB3C-300RF1 Riedon, UB3C-300RF1 Datasheet - Page 2

• Manufacturer Part Number: UB3C-300RF1
• Description: RES AXIAL 300 OHM 1% 3W
• Manufacturer: Riedon
• Series: UBr

Specifications of UB3C-300RF1

• Resistance (ohms): 300
• Power (watts): 3W
• Composition: Wirewound
• Temperature Coefficient: ±20ppm/°C
• Tolerance: ±1%
• Size / Dimension: 0.157" Dia x 0.350" L (4.00mm x 8.90mm)
• Lead Style: Through Hole
• Package / Case: Axial
• Resistance In Ohms: 300
• Case: Axial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Height: -
• Other names: UB3C-300; UB3C-300RF1

Riedon Inc.
UB Series
Silicone Coated Power Resistors
For Non-Inductive Windings / insert the letter “N” ( i.e. UBN-5 )
Part Number - Resistance - Tolerance - TCR ( If not standard )
Example: UB-3 10 Ohm 1%
Specification
Tolerances
Temperature Coefficient
Temperature Range
Dielectric Strength
Constuction
Environmental Performance
(MIL-STD 202)
Dielectric
Load Life
Storage
Moisture Resistance
Thermal Shock
5X Overload ( 5s )
Shock
Vibration
300 Cypress Avenue
120
100
80
60
40
20
SPECIFICATIONS
0
0
Ordering Information
Value
±0.01% to ±10% ( 1% Standard )
>10W : ±20ppm/K
1W to10W : ±50ppm/K
<1W : Call Factory
-55°C to +250°C : Characteristic U
-55°C to +350°C : Characteristic V
500 VAC : UB-1 / UB-2 / UB-3
1000 VAC : All Others
Centerless ground ceramic core
Tinned copper or copperweld leads
High temperature / trivalent / inorganic Silicone coating
All welded terminations
-50
Alhambra CA 91801
www.riedon.com
Ambient Temperature (°C)
Power Derating Curve
0
50
To ±1% Depending on Size and Resistance Value
100
(continued)
150
±0.2% + 0.05W
±0.2% + 0.05W
±0.2% + 0.05W
±0.2% + 0.05W
±0.2% + 0.05W
±0.1% + 0.05W
±0.1% + 0.05W
200
[phone]
DR
250
300
[phone]
01/11