PDTA143XQBZ Equivalent & Substitute Parts

Part Overview

The PDTA143XQBZ is a pre-biased PNP bipolar junction transistor (BJT) manufactured by Nexperia USA Inc. in a 3-XDFN surface mount package with wettable flank. This component integrates internal base and emitter-base resistors, enabling direct logic-level switching applications without external biasing networks. The device is rated for 50 V collector-emitter breakdown voltage and 100 mA maximum collector current with a transition frequency of 180 MHz.

The PDTA143XQBZ carries an obsolete product status. Identification of equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications currently utilizing this component.

Substiute Parts

PDTA143XQBZ

Nexperia USA Inc.In Stock: 5948PDTA143XQBZ Datasheet

Current PartRFQ

PDTA143XQB-QZ

Nexperia USA Inc.In Stock: 6144PDTA143XQB-QZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PDTA143XQBZ is determined by electrical and mechanical parameter equivalence across the following critical specifications:

Electrical Parameters:

• Transistor type classification (PNP - Pre-Biased)
• Maximum collector current (100 mA)
• Collector-emitter breakdown voltage (50 V)
• Internal base resistor value (4.7 kOhms)
• Internal emitter-base resistor value (10 kOhms)
• DC current gain characteristics (50 @ 10mA, 5V)
• Saturation voltage performance (100 mV @ 500µA, 10mA)
• Collector cutoff current (100 nA)
• Transition frequency (180 MHz)
• Maximum power dissipation (340 mW)

Mechanical Parameters:

• Package type (3-XDFN Exposed Pad)
• Mounting technology (Surface Mount, Wettable Flank)
• Supplier device package designation (DFN1110D-3)

Compliance Parameters:

• RoHS3 compliance requirement
• REACH unaffected status
• ECCN classification (EAR99)

Substitute parts must maintain identical electrical specifications and package configuration to ensure functional and physical compatibility within existing circuit designs and PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

The PDTA143XQB-QZ is a direct functional equivalent to the obsolete PDTA143XQBZ. All electrical parameters, internal resistor values, and package specifications are identical between the two components.

Product Status Consideration: The PDTA143XQBZ is classified as obsolete, while the PDTA143XQB-QZ maintains active product status. This distinction is significant for long-term supply chain planning and design continuity.

Compliance and Qualification: Both parts maintain ROHS3 compliance and REACH unaffected status. The PDTA143XQB-QZ carries AEC-Q101 automotive qualification, indicating enhanced reliability screening and qualification for automotive applications. This qualification is not specified for the PDTA143XQBZ.

Moisture Sensitivity: The PDTA143XQBZ is rated MSL 3 (168 hours), while the PDTA143XQB-QZ is rated MSL 1 (unlimited). The substitute part offers superior moisture handling characteristics, reducing moisture-related failure risk during storage and handling.

Selection Basis: The PDTA143XQB-QZ is suitable for direct replacement in applications currently using the PDTA143XQBZ. The active product status and improved MSL rating provide enhanced supply availability and reduced environmental sensitivity. The AEC-Q101 qualification of the substitute part supports applications requiring automotive-grade reliability.

Frequently Asked Questions (FAQ)

Q: Can the PDTA143XQB-QZ be used as a direct replacement for the PDTA143XQBZ?

A: Yes. The PDTA143XQB-QZ is electrically and mechanically identical to the PDTA143XQBZ. All electrical parameters, internal resistor values, and package specifications match exactly. No circuit modifications are required.

Q: What is the primary difference between these two parts?

A: The PDTA143XQBZ is obsolete, while the PDTA143XQB-QZ is active. Additionally, the PDTA143XQB-QZ has improved moisture sensitivity (MSL 1 versus MSL 3) and carries AEC-Q101 automotive qualification.

Q: Are the packages identical?

A: Yes. Both parts use the 3-XDFN Exposed Pad package (DFN1110D-3) with surface mount, wettable flank configuration. PCB footprints and reflow profiles are identical.

Q: Does the improved MSL rating of the substitute part affect circuit performance?

A: No. MSL rating pertains to moisture absorption during storage and handling, not circuit operation. The improved MSL 1 rating of the PDTA143XQB-QZ reduces the risk of moisture-related failures during component storage and manufacturing processes.

Q: What does AEC-Q101 qualification mean?

A: AEC-Q101 is an automotive industry qualification standard for discrete semiconductors. It specifies reliability and quality requirements for automotive applications. The PDTA143XQB-QZ meets these standards; the PDTA143XQBZ does not list this qualification.

Q: Are there any electrical performance differences between the parts?

A: No. Both parts have identical electrical specifications: 100 mA maximum collector current, 50 V breakdown voltage, 4.7 kOhm base resistor, 10 kOhm emitter-base resistor, 180 MHz transition frequency, and 340 mW maximum power dissipation.

Q: Can I use the PDTA143XQB-QZ in non-automotive applications?

A: Yes. The PDTA143XQB-QZ is suitable for any application requiring a pre-biased PNP transistor with the specified electrical and package characteristics. AEC-Q101 qualification indicates enhanced reliability but does not restrict use to automotive applications.

Q: What is the inventory status of these parts?

A: The PDTA143XQBZ has 5880 pieces in stock. The PDTA143XQB-QZ has 6039 pieces in stock. Both are available as new original components.