PDTC124XQCZ Equivalent & Substitute Parts

Part Overview

The PDTC124XQCZ is a pre-biased NPN bipolar junction transistor (BJT) manufactured by Nexperia USA Inc. in a 3-XDFN surface mount package with wettable flank. This device integrates internal base and emitter-base resistors, enabling direct logic-level switching applications without external biasing networks. The part is rated for 50 V collector-emitter breakdown voltage and 100 mA maximum collector current with a transition frequency of 230 MHz.

The PDTC124XQCZ carries an Obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and field replacement applications.

Substiute Parts

PDTC124XQCZ

Nexperia USA Inc.In Stock: 5980PDTC124XQCZ Datasheet

Current PartRFQ

PDTC124XQC-QZ

Nexperia USA Inc.In Stock: 5925PDTC124XQC-QZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PDTC124XQCZ is determined by strict equivalence across the following critical parameters:

Electrical Characteristics:

• Transistor type: NPN - Pre-Biased configuration
• Maximum collector current: 100 mA
• Collector-emitter breakdown voltage: 50 V
• Internal base resistor (R1): 22 kOhms
• Internal emitter-base resistor (R2): 47 kOhms
• DC current gain (hFE): 80 minimum at specified conditions
• Saturation voltage: 100 mV maximum at specified conditions
• Transition frequency: 230 MHz
• Maximum power dissipation: 360 mW

Mechanical & Environmental Characteristics:

• Package type: 3-XDFN Exposed Pad with wettable flank
• Mounting: Surface mount
• RoHS3 compliance
• Moisture sensitivity level: 1 (Unlimited)

Substitute parts must match all electrical parameters and package specifications without deviation. Product status and compliance certifications are secondary selection criteria.

Parameter Comparison

Engineering Selection Recommendations

The PDTC124XQC-QZ is a direct electrical and mechanical equivalent to the PDTC124XQCZ. All critical electrical parameters, internal resistor values, and package specifications are identical. The substitute part is manufactured by the same supplier (Nexperia USA Inc.) and maintains full compatibility with existing PCB layouts and circuit designs.

The primary distinction between the two parts is product status: the PDTC124XQCZ is Obsolete, while the PDTC124XQC-QZ is Active. The substitute part carries AEC-Q101 automotive qualification, which provides additional assurance for applications requiring automotive-grade reliability standards. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

For new designs and production applications, the PDTC124XQC-QZ is the appropriate selection due to its active status and continued availability. For field replacement or legacy system support, the PDTC124XQC-QZ provides functional and physical equivalence to the obsolete PDTC124XQCZ.

Frequently Asked Questions (FAQ)

Q: Can the PDTC124XQC-QZ be used as a direct replacement for the PDTC124XQCZ in existing designs?

A: Yes. The PDTC124XQC-QZ is electrically and mechanically identical to the PDTC124XQCZ. All electrical parameters, internal resistor values, package dimensions, and mounting specifications are equivalent. No circuit modifications or PCB layout changes are required.

Q: What is the significance of the AEC-Q101 qualification on the PDTC124XQC-QZ?

A: AEC-Q101 is an automotive industry qualification standard that certifies the component for automotive applications. This qualification indicates the part has undergone additional reliability testing and quality assurance processes. The PDTC124XQCZ does not carry this designation.

Q: Are there any differences in packaging or handling between these two parts?

A: No. Both parts use the identical 3-XDFN Exposed Pad package with wettable flank and surface mount configuration. Both carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no special moisture control measures are required during storage or handling.

Q: Why is the PDTC124XQCZ marked as Obsolete?

A: The PDTC124XQCZ has been discontinued by the manufacturer. The PDTC124XQC-QZ is the active production equivalent and is the recommended part for all new applications and ongoing procurement.

Q: Are both parts RoHS compliant?

A: Yes. Both the PDTC124XQCZ and PDTC124XQC-QZ are ROHS3 compliant and REACH unaffected.

Q: What is the difference between the part numbers PDTC124XQCZ and PDTC124XQC-QZ?

A: The part numbers differ in their suffix designations. The PDTC124XQC-QZ represents the active production variant with AEC-Q101 automotive qualification. The base product number PDTC124 is common to both parts, indicating they share the same core design and electrical specifications.