NE68519-A Equivalent & Substitute Parts Reference

Part Overview

The NE68519-A is an NPN RF Bipolar Junction Transistor (BJT) designed for high-frequency applications, with a maximum collector-emitter voltage of 6V and a transition frequency of 12GHz, provided in a miniature SOT-523 surface-mount package. The product is currently in an Obsolete status, making the identification and selection of compatible substitute transistors essential for continued design support, manufacturing, and maintenance of legacy systems.

Substiute Parts

NE68519-A

CELIn Stock: 892NE68519-A Datasheet

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CMUT5179 TR PBFREE

Central Semiconductor CorpIn Stock: 13609CMUT5179 TR PBFREE Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute components for the NE68519-A are selected based strictly on matching or exceeding the following key electrical and mechanical parameters: Transistor Type (NPN), mounting type (Surface Mount), package/case (SOT-523), maximum collector-emitter voltage, maximum collector current, maximum power dissipation, gain, transition frequency, noise figure, and operating temperature. Only devices within the same component category and those that comply with the same or more stringent environmental and compliance standards are considered.

Parameter Comparison

Engineering Selection Recommendations

The NE68519-A is classified as Obsolete. Substitute selection is enabled by matched categories, mounting types, and compliance status. All listed substitute parts possess equivalent Moisture Sensitivity Level (MSL) ratings and are designated as REACH Unaffected. No alternate environmental or product status data has been introduced outside provided values.

Frequently Asked Questions (FAQ)

Q: What are the critical parameters for substituting the NE68519-A with another transistor?
A: Key parameters include transistor type (NPN), surface-mount package (SOT-523), collector-emitter voltage, collector current, transition frequency, power dissipation, gain, noise figure, maximum junction temperature, and compliance status (REACH, MSL).

Q: Can I use a substitute with different frequency or voltage ratings?
A: The substitute must match or exceed the maximum voltage, current, power, and compliance requirements as specified for the original device while fitting within the designated package and mounting constraints.

Q: Do package variants affect mounting compatibility?
A: Only packages explicitly listed as SOT-523 or directly compatible with SOT-523 are considered, preserving mechanical and PCB assembly compatibility.

Q: What compliance ratings must substitute transistors meet?
A: Substitute parts must be at MSL 1 (Unlimited) and REACH Unaffected per the original part’s specification.

Q: Is the substitute part active or obsolete?
A: Substitute part status is explicitly shown in the Product Status field; only currently active parts meeting all technical and compliance parameters are listed.