PF1262-820RF1

Series:	PF1260
Packaging:	Tube
Part Status:	Active
Resistance:	820 Ohms
Tolerance:	±1%
Power (Watts):	20W
Composition:	Thin Film
Features:	--
Temperature Coefficient:	±50ppm/°C
Operating Temperature:	-55°C ~ 155°C
Package / Case:	TO-126-2
Supplier Device Package:	TO-126
Size / Dimension:	0.335" L x 0.122" W (8.50mm x 3.10mm)
Height - Seated (Max):	0.472" (12.00mm)
Number of Terminations:	2
Failure Rate:	--

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Introduction to Through Hole Resistors

Through hole resistors are resistors that rely on a ceramic or metal package with pins or leads inserted through the plated holes of the printed circuit board (PCB) in order to form a solid electrical connection. Through hole resistors are typically larger than chip resistors and can tolerate much higher currents and even higher temperatures. Many through hole resistors are rated for up to 500 watts, whereas chip resistors are limited to about 1/4 watt.

PF1262-820RF1 - Application Field and Working Principle

The PF1262-820RF1 is a through hole fixed resistor from the PF resistor family series. It features three pins in a metal-oxide package with a 300-watt max power rating and silver palladium contacts. The resistor has a flat wirewound design with a cylindrical shape and good temperature and power ratings. The resistor is capable of withstanding very high temperatures and pressures.The PF1262-820RF1 is a good choice for applications that require a wide voltage range, high saturation current, and high peak power, such as small industrial motor controls, power supplies, and audio amplifiers. The resistor is ideal for resistive filtering and attenuation circuits due to its low inductance design. Additionally, its flat winding design adds reliability and reduces noise.The PF1262-820RF1 has a maximum working voltage of 630V dc and a working temperature range of -15°C to +375°C. It also features 1% total resistance tolerance and tight resistance error max limits. The resistor also has a high dielectric strength rating of 2500Vdc. The resistor has a linear response with other circuit components and can dissipate up to 300W at a working temperature of 85°C.The working principle of the PF1262-820RF1 revolves around the transfer of electrical energy or power across its resistive element. The resistor converts electrical energy into heat energy and the amount of heat dissipated is proportional to the amount of energy supplied. The resistor is designed to have very low inductance allowing for high speed switching operations and fast operation times.

Conclusion

Through hole resistors are a reliable and well-established technology designed for use in a wide variety of settings that require higher power ratings and wide working temperatures. The PF1262-820RF1 is one such type of through hole resistor designed to meet specific requirements in different applications. The PF1262-820RF1 has a flat winding design and is capable of dissipating high peak powers without risk of damage. The resistor also features a high dielectric strength and can be used for resistive filtering and attenuation circuits due to its low inductance design.

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