PDTC143XQCZ Equivalent & Substitute Parts

Part Overview

The PDTC143XQCZ 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 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 360 mW power dissipation capability.

The PDTC143XQCZ carries an Obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently utilizing this component.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN - Pre-Biased	—
Current - Collector (Ic) (Max)	100	mA
Voltage - Collector Emitter Breakdown (Max)	50	V
Resistor - Base (R1)	4.7	kOhms
Resistor - Emitter Base (R2)	10	kOhms
DC Current Gain (hFE) (Min) @ Ic, Vce	50 @ 10mA, 5V	—
Vce Saturation (Max) @ Ib, Ic	100	mV @ 500µA, 10mA
Current - Collector Cutoff (Max)	100	nA
Frequency - Transition	230	MHz
Power - Max	360	mW
Package / Case	3-XDFN Exposed Pad	—
Mounting Type	Surface Mount, Wettable Flank	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the PDTC143XQCZ is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

Transistor type classification (NPN - Pre-Biased)
Maximum collector current (100 mA)
Maximum collector-emitter breakdown voltage (50 V)
Internal base resistor value (4.7 kOhms)
Internal emitter-base resistor value (10 kOhms)
DC current gain minimum specification (50 @ 10mA, 5V)
Saturation voltage characteristic (100 mV @ 500µA, 10mA)
Collector cutoff current (100 nA)
Transition frequency (230 MHz)
Maximum power dissipation (360 mW)

Mechanical and Environmental Specifications:

Package type (3-XDFN Exposed Pad)
Mounting technology (Surface Mount, Wettable Flank)
RoHS compliance (ROHS3 Compliant)
Moisture sensitivity level (MSL 1)

Substitute parts must match all electrical parameters and package specifications without deviation. Differences in product status or qualification level do not affect electrical or mechanical compatibility.

Parameter Comparison

Parameter	PDTC143XQCZ (Main)	PDTC143XQC-QZ (Substitute)	Match
Manufacturer	Nexperia USA Inc.	Nexperia USA Inc.	✓
Transistor Type	NPN - Pre-Biased	NPN - Pre-Biased	✓
Current - Collector (Ic) (Max)	100 mA	100 mA	✓
Voltage - Collector Emitter Breakdown (Max)	50 V	50 V	✓
Resistor - Base (R1)	4.7 kOhms	4.7 kOhms	✓
Resistor - Emitter Base (R2)	10 kOhms	10 kOhms	✓
DC Current Gain (hFE) (Min) @ Ic, Vce	50 @ 10mA, 5V	50 @ 10mA, 5V	✓
Vce Saturation (Max) @ Ib, Ic	100 mV @ 500µA, 10mA	100 mV @ 500µA, 10mA	✓
Current - Collector Cutoff (Max)	100 nA	100 nA	✓
Frequency - Transition	230 MHz	230 MHz	✓
Power - Max	360 mW	360 mW	✓
Package / Case	3-XDFN Exposed Pad	3-XDFN Exposed Pad	✓
Mounting Type	Surface Mount, Wettable Flank	Surface Mount, Wettable Flank	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	✓
Product Status	Obsolete	Active	—
Qualification	—	AEC-Q101	—

Engineering Selection Recommendations

The PDTC143XQC-QZ is a direct electrical and mechanical equivalent to the PDTC143XQCZ. All critical electrical parameters, internal resistor values, and package specifications are identical. Both components are manufactured by Nexperia USA Inc. and comply with ROHS3 environmental standards.

The primary distinction between these parts is product status and qualification level. The PDTC143XQCZ is classified as Obsolete, while the PDTC143XQC-QZ maintains Active product status. The substitute part carries AEC-Q101 automotive qualification, indicating compliance with automotive industry reliability and quality standards.

For applications requiring continued component supply and long-term availability, the PDTC143XQC-QZ is the appropriate selection. The part is functionally interchangeable at the circuit level and requires no design modifications. Identical PCB footprints, solder reflow profiles, and handling procedures apply to both components.

Frequently Asked Questions (FAQ)

Q: Can PDTC143XQC-QZ be used as a direct replacement for PDTC143XQCZ in existing designs?

A: Yes. The PDTC143XQC-QZ is electrically and mechanically equivalent to the PDTC143XQCZ. All electrical parameters, internal resistor values, package dimensions, and mounting specifications are identical. No circuit modifications or PCB layout changes are required.

Q: What is the difference between these two part numbers?

A: The PDTC143XQCZ is classified as Obsolete, while PDTC143XQC-QZ is Active. The substitute part includes AEC-Q101 automotive qualification. Electrical performance and package specifications are identical.

Q: Are the package dimensions and pin configurations the same?

A: Yes. Both parts use the 3-XDFN Exposed Pad package with wettable flank surface mount technology. Pin configuration, footprint, and solder pad layout are identical.

Q: Does the AEC-Q101 qualification on PDTC143XQC-QZ affect compatibility?

A: No. AEC-Q101 qualification indicates the part meets automotive industry reliability standards. This qualification does not alter electrical characteristics or mechanical compatibility. The part remains suitable for all applications where the original component was used.

Q: Are there any differences in RoHS or environmental compliance?

A: Both parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level. Environmental compliance and handling requirements are identical.

Q: What is the base product number for these components?

A: The base product number is PDTC143. Both PDTC143XQCZ and PDTC143XQC-QZ are variants of this base product family.

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