Riedon Inc. 300 Cypress Avenue Alhambra CA 91801 (626) 284-9901 (626) 284-1704
www.riedon.com
08/14
PF1262 Series
• TO-126 Housing
• Resistances from 0.01 to 51K Ohms
• Rated Power to 20 Watts
• Resistance Tolerances to ±1%
• TCR to ±50ppm/°C
• Low Inductance ( <50nH )
• Isolated Back Plate
SPECIFICATIONS
Part Description: Part Type - Resistance - Tolerance
Example: PF1262 0.5 Ohm 1%
1
Power rating based on 25°C Flange Temperature
2
Power rating based on 25°C Ambient Temperature
3
Consult Factory for Higher or Lower Values
Specifi cation Value
Maximum Current 25A
Temperature Range -55°C to +155°C : PF1262
Dielectric Strength 2000 VAC
Max. Operating Voltage 500 V
Insulation Resistance >1000 Meg-Ohm
Environmental Performance ∆R Test Conditions
Load Life ±1% + 0.05Ω 25°C / 90 min ON / 30 min OFF / 1000 hr
Humidity Resistance ±1% + 0.05Ω 40°C / 90-95% RH / DC 0.1W / 1000 hr
Temperature Cycle ±0.25% + 0.05Ω -55°C for 30 min / +155°C for 30 min / 1000 hr
Solder Heat ±0.1% + 0.05Ω +350°C / 3s
Vibration ±0.25% + 0.05Ω
IEC60068-2-6
Type
Power Rating
Heatsink
1
Free Air
2
Thermal
Resistance
Resistance Range
3
Min Max
Tolerances
Temperature
Coeffi cients
PF1262 20W 1W 5.9K/W 0.01Ω 51KΩ
±1% ( R≥0.1Ω )
±5%
±50ppm/°C ( R≥10Ω )
±100ppm/°C ( 0.1Ω ≤ R < 10Ω )
±250ppm/°C ( R < 0.1Ω )
TO-126 Power Thin Film Resistors
Ordering Information
