FDH444TR

Single Diodes Overview

The FDH444TR is a small signal switching diode manufactured by onsemi, designed for general-purpose applications. It features a single junction configuration housed in a DO-35 through-hole package. Key electrical specifications include a peak reverse voltage of 125 V and a maximum forward current of 200 mA. The device supports a maximum surge current of 4 A and exhibits a recovery time of 60 ns. Operating parameters specify a forward voltage of 1.2 V and a reverse current of 100 nA. The component operates within a temperature range of -65 C to +175 C.

Single Diodes Feature Summary

• Single junction construction optimized for high conductance and low leakage performance.
• DO-35 axial leaded package facilitates through-hole mounting for standard circuit board integration.
• Wide thermal operating range ensures reliability across extreme environmental conditions.

Single Diodes Applications

• General purpose rectification circuits
• High speed switching applications
• Protection against reverse polarity

Single Diodes Procurement Notes

Verify the specific suffix TR indicates reel or cut tape packaging as per distributor listings. Confirm RoHS compliance status via official documentation before procurement. Check for any recent process change notifications that may affect part marking or material composition. Ensure the DO-35 package dimensions match your PCB footprint requirements. Validate the 125 V rating against your circuit's peak reverse voltage demands.

Single Diodes Selection Notes

Select this component when a through-hole small signal diode with moderate voltage ratings is required. The 125 V peak reverse voltage suits low-voltage DC circuits. Consider the 60 ns recovery time for general switching speeds rather than ultra-high frequency applications. The DO-35 package is suitable for manual assembly or standard wave soldering processes. Evaluate the 200 mA continuous current limit against your load requirements.

Single Diodes Part Context

The FDH444TR belongs to the FDH444 series of small signal switching diodes from onsemi. This series is categorized under general purpose diodes and power switching devices. The manufacturer utilizes silicon technology for these components. The product line focuses on providing reliable solutions for basic electronic functions such as rectification and signal switching in consumer and industrial electronics.

Single Diodes Replacement Considerations

Consult official substitution guides for equivalent parts. Verify pinout compatibility and electrical parameter margins before replacing. Ensure the alternative component meets the same DO-35 package constraints.