High-power metal film resistors play a crucial role in various applications, serving as ballasts or protective components against voltage spikes. Vishay's PR03000203303JAC00 is an exceptional resistor in this category, offering impressive performance and reliability.

Voltage Range and Power Dissipation:

Vishay certifies the PR03000203303JAC00 with a maximum voltage range of 750 volts, applicable to both direct current (DC) and alternating current (AC). With a power dissipation rating of 3W, these resistors can handle high currents effectively. Additionally, their compact dimensions of 16.7 mm x 5.2 mm make them suitable for space-constrained designs.

PR03000203303JAC00 resistor power dissipation and voltage

Unique Features: Defined Fusing Characteristics

A closer look at PR03000203303JAC00's datasheet reveals valuable information presented through nomograms and lookup tables. For example, one diagram provides insights into the heat dissipation into the PCB based on the length of the mounting wires, aiding in thermal management. Another noteworthy chart examines pulse voltages, illustrating that the maximum voltage rating can be temporarily exceeded for short durations if the pulses occur infrequently and have a known maximum duration. This information is crucial for understanding the resistor's performance under dynamic conditions. PR03000203303JAC00 unique features

Availability and Pricing

Conducting an OEMSecrets search reveals that the Vishay resistor is widely stocked by catalog distributors. Most distributors currently offer more than 1000 pieces of this component. When purchasing a lot size of 100, the unit cost is approximately 17 euro cents, excluding shipping charges(Price correct as of the date of publication).

Conclusion

With Vishay's thorough qualification efforts, the PR03000203303JAC00 resistor stands out as an ideal choice for protection and shunting applications. While these resistors may be slightly more expensive than standard through-hole metal film resistors, the peace of mind provided by the detailed datasheet and reliable performance justifies the investment. Designers can confidently utilize these flameproof resistors to safeguard their circuits and ensure optimal functionality.