ZXPD4000DH-7

Overview

The ZXPD4000DH-7 is an obsolete NPN Darlington transistor with an integrated rectifier diode in a V-DFN3030-8 package. It features a minimum DC current gain (hFE) of 2000 at VCE = 2V and IC = 1A. The device supports a continuous collector current of 2A and peak current of 3A, with breakdown voltages of 120V for both the transistor and diode. Thermal resistance to ambient ranges from 139°C/W to 172°C/W depending on PCB layout. Operating temperature spans -55°C to +150°C.

Feature Summary

• Combines a high-gain NPN Darlington transistor with a 120V rectifier diode in a single surface-mount component.
• Provides high current handling capability with a minimum hFE of 2000 under standard test conditions.
• Includes robust electrostatic discharge protection rated at 4000V via Human Body Model testing.

Applications

• Printer head drivers

Procurement Notes

This part number is officially marked as obsolete and discontinued by Diodes Incorporated. Verify availability through authorized distributors or secondary markets, noting that lead times may be extended. Confirm manufacturing date codes and storage conditions carefully, as long-term storage can affect solderability and internal integrity. Contact Diodes directly for potential alternative recommendations.

Selection Notes

Select this component only if legacy compatibility is required for existing printer head driver designs. Evaluate thermal management requirements due to the specified power dissipation limits in the V-DFN3030-8 package. Ensure the application voltage does not exceed the 120V collector-base or emitter-base ratings. Consider the discontinuation status when planning long-term production cycles.

Part Context

The ZXPD4000DH belongs to the discrete semiconductor category, specifically within the bipolar junction transistor family. It integrates two functional blocks: an NPN Darlington pair and a fast recovery rectifier diode. This integration reduces board space compared to using separate components. The device utilizes a molded plastic package with NiPdAu terminal finish over a copper leadframe.

Replacement Considerations

No public confirmed substitute part numbers are available in the documentation. Consult Diodes Incorporated representatives for qualified alternatives suitable for automotive or industrial applications requiring specific change control protocols.

FAQ

What is the maximum continuous collector current rating?

The absolute maximum continuous collector current (IC) is rated at 2 Amperes.

Does the device include ESD protection specifications?

Yes, the datasheet specifies an Electrostatic Discharge Human Body Model (HBM) rating of 4000V, classified under JEDEC Class 3A.

What is the typical reverse-recovery time for the integrated diode?

The typical reverse-recovery time (tRR) is 300 nanoseconds, with a maximum of 450 nanoseconds under specified test conditions.