Diotec Semiconductor AG

https://www.diotec.com

Aug 13, 2026

1N4448HPR13 | High-Speed Switching in a Compact SOD-882 Package

In high-speed signal circuits, the performance of a switching diode can have a direct impact on signal integrity. Reverse-recovery behaviour and junction capacitance are critical parameters when a diode must operate on fast signal paths without introducing unnecessary distortion or loading. As a semiconductor manufacturer, Diotec develops switching diodes with these requirements in mind. The 1N4448HPR13 combines a reverse recovery time of less than 4 ns with a junction capacitance of just 3 pF at 0 V and 1 MHz, providing engineers with a solution for applications where fast switching and low parasitic loading are essential.

Designed for Fast Signal Paths

When a diode switches from forward to reverse bias, stored charge can affect the behaviour of the surrounding circuit. Excessive reverse-recovery time can introduce unwanted current and distortion, particularly in circuits operating at high switching speeds.

With a reverse recovery time below 4 ns, the 1N4448HPR13 is designed to minimize this effect and support clean, predictable switching behaviour.

Junction capacitance is equally important in high-frequency signal applications. A diode with significant capacitance can load the signal path and effectively alter its frequency response. At only 3 pF under the specified measurement conditions, the 1N4448HPR13 helps keep this parasitic effect low.

Small Package, High Integration Potential

The electrical performance is complemented by the diode's compact SOD-882 package, measuring approximately 1.0 mm × 0.65 mm.

For modern electronics, where PCB real estate is increasingly constrained, this package enables designers to place protection and switching functions close to the point of use without requiring significant board space.

This is particularly relevant for dense signal-conditioning circuits, communication interfaces, automotive electronics and other applications where component size and electrical performance must be considered together.

100 V Rating and Automotive Qualification

The 1N4448HPR13 offers a 100 V reverse voltage rating, providing additional design flexibility across a range of switching and signal applications.

For automotive applications, a corresponding AEC-Q101 qualified variant with part number 1N4448HPR13-AQ extends the device family into environments where component qualification and reliability are key considerations.

Diotec: Semiconductor Expertise for Demanding Applications

For engineers and technical buyers, selecting a switching diode is not simply a matter of choosing a voltage rating. Parameters such as reverse recovery, junction capacitance, package dimensions and qualification can determine how effectively a device integrates into the overall circuit.

The 1N4448HPR13 reflects Diotec's focus as a semiconductor producer on combining these parameters in a compact, application-oriented device.

When a diode is placed directly on a high-speed signal path, the ideal component is one that performs its switching function without becoming a limiting factor for the circuit around it.

With fast reverse recovery, low junction capacitance and an extremely compact package, the Diotec 1N4448HPR13 is designed to do exactly that.