ZTX452STZ Equivalent & Substitute Parts

Part Overview

The ZTX452STZ is a bipolar (BJT) transistor array in SMD packaging manufactured by Diodes Incorporated. This component is classified as obsolete, indicating it is no longer in active production. The product carries RoHS Compliant certification and features unlimited moisture sensitivity level (MSL 1). Due to its obsolete status, identification of functionally equivalent substitute components is necessary for design continuity and procurement purposes.

Substiute Parts

ZTX452STZ

Diodes IncorporatedIn Stock: 823ZTX452STZ Datasheet

Current PartRFQ

ZTX453STZ

Diodes IncorporatedIn Stock: 25181ZTX453STZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The ZTX453STZ is identified as a direct substitute for the ZTX452STZ based on the following criteria:

Substitution Logic: Both components are manufactured by Diodes Incorporated within the bipolar transistor product family. The ZTX453STZ maintains electrical compatibility through equivalent transistor specifications and shares the same RoHS compliance status and unlimited moisture sensitivity level (MSL 1). The substitute part is actively produced, ensuring long-term availability and supply chain continuity.

Key Parameters Determining Substitution:

• Manufacturer: Diodes Incorporated
• Component Category: Bipolar (BJT) Transistor
• RoHS Compliance: Both RoHS Compliant
• Moisture Sensitivity Level: Both MSL 1 (Unlimited)
• Electrical Function: NPN Transistor with specified voltage and current ratings

Parameter Comparison

Engineering Selection Recommendations

The ZTX453STZ is the designated substitute for the obsolete ZTX452STZ. Selection of this substitute is supported by the following factors:

Product Status Alignment: The ZTX453STZ maintains active production status with Diodes Incorporated, ensuring reliable procurement and supply chain availability compared to the obsolete ZTX452STZ.

Compliance Certification: Both components meet RoHS compliance requirements. The ZTX453STZ carries ROHS3 Compliant certification, representing current regulatory standards. Both components feature MSL 1 (Unlimited) moisture sensitivity level, indicating equivalent handling and storage requirements.

Regulatory Classification: The ZTX453STZ is classified under ECCN EAR99, providing clear export control status for international applications. The substitute part is subject to REACH regulations with unaffected status.

Inventory Availability: The ZTX453STZ maintains substantial inventory levels (25,100 pieces new original in stock), supporting immediate procurement requirements for design transitions from the obsolete ZTX452STZ.

Frequently Asked Questions (FAQ)

Q: Why is the ZTX452STZ classified as obsolete?

A: The ZTX452STZ has been discontinued by Diodes Incorporated and is no longer in active production. Obsolete status indicates the manufacturer no longer manufactures or supports this component.

Q: What is the primary difference between the ZTX452STZ and ZTX453STZ?

A: The ZTX452STZ is an SMD (surface mount device) package, while the ZTX453STZ is a through-hole mounted component in E-Line (TO-92 compatible) packaging. Both are bipolar transistors from Diodes Incorporated with equivalent electrical function.

Q: Are there packaging considerations when substituting the ZTX452STZ with the ZTX453STZ?

A: Yes. The ZTX452STZ uses surface mount packaging, while the ZTX453STZ uses through-hole E-Line packaging. PCB layout and assembly processes must be adapted accordingly. The ZTX453STZ requires through-hole mounting holes and different soldering procedures compared to SMD assembly.

Q: Do both components meet current RoHS requirements?

A: Yes. The ZTX452STZ is RoHS Compliant, and the ZTX453STZ is ROHS3 Compliant. Both meet current regulatory requirements for hazardous substance restrictions.

Q: What is the moisture sensitivity level for both components?

A: Both the ZTX452STZ and ZTX453STZ carry MSL 1 (Unlimited) rating, indicating unlimited shelf life under normal storage conditions without moisture bake-out requirements.

Q: Is the ZTX453STZ suitable for high-frequency applications?

A: The ZTX453STZ features a transition frequency of 150MHz, supporting applications requiring moderate frequency response. Specific application requirements should be evaluated against this specification.

Q: What is the operating temperature range for the ZTX453STZ?

A: The ZTX453STZ operates across a junction temperature range of -55°C to 200°C (TJ), supporting both industrial and extended temperature applications.