PDTC123JQCZ Equivalent & Substitute Parts

Part Overview

The PDTC123JQCZ 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 part is currently listed as obsolete, necessitating identification of functionally equivalent alternatives for ongoing production and maintenance applications.

Substiute Parts

PDTC123JQCZ

Nexperia USA Inc.In Stock: 5697PDTC123JQCZ Datasheet

Current PartRFQ

PDTC123JQC-QZ

Nexperia USA Inc.In Stock: 5860PDTC123JQC-QZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PDTC123JQCZ is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Transistor type classification (NPN - Pre-Biased)
• Maximum collector current (100 mA)
• Collector-emitter breakdown voltage (50 V)
• Internal base resistor value (2.2 kOhms)
• Internal emitter-base resistor value (47 kOhms)
• DC current gain minimum specification (100 @ 10mA, 5V)
• Saturation voltage characteristic (100 mV @ 250µA, 5mA)
• Collector cutoff current (100 nA)
• Transition frequency (230 MHz)
• Maximum power dissipation (360 mW)

Mechanical & 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. Product status and certifications are secondary considerations that may influence selection priority but do not alter functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The PDTC123JQC-QZ is a direct functional equivalent to the obsolete PDTC123JQCZ. All electrical parameters, internal resistor values, and package specifications are identical. Both components are manufactured by Nexperia USA Inc. and comply with ROHS3 and REACH requirements.

The primary distinction is product status: PDTC123JQCZ is obsolete, while PDTC123JQC-QZ maintains active production status. Additionally, PDTC123JQC-QZ carries automotive-grade qualification (AEC-Q101), providing enhanced reliability documentation and process controls suitable for automotive and mission-critical applications.

For new designs and production continuity, PDTC123JQC-QZ is the appropriate selection. Existing inventory of PDTC123JQCZ may be utilized in current production runs without circuit modification, as electrical and mechanical compatibility is complete.

Frequently Asked Questions (FAQ)

Q: Can PDTC123JQC-QZ be used as a direct replacement for PDTC123JQCZ in existing designs?

A: Yes. All electrical parameters, internal resistor networks, and package specifications are identical. No circuit modifications are required. The components are pin-compatible and functionally equivalent.

Q: What is the significance of the "Active" product status for PDTC123JQC-QZ?

A: Active status indicates ongoing manufacturing and availability from the supplier. This ensures long-term supply chain continuity and access to current production batches. The obsolete status of PDTC123JQCZ indicates limited or discontinued availability.

Q: Does the automotive qualification (AEC-Q101) of PDTC123JQC-QZ affect its use in non-automotive applications?

A: No. AEC-Q101 qualification represents additional process controls and reliability testing. Components meeting automotive standards are suitable for all applications, including consumer and industrial use. The qualification does not restrict application scope.

Q: Are the internal resistor values identical between both parts?

A: Yes. Both PDTC123JQCZ and PDTC123JQC-QZ contain identical internal base resistor (R1 = 2.2 kOhms) and emitter-base resistor (R2 = 47 kOhms) values. Biasing behavior and switching characteristics are identical.

Q: Is the 3-XDFN package with wettable flank compatible with standard surface mount assembly processes?

A: Yes. The wettable flank design is compatible with standard reflow soldering processes and automated pick-and-place equipment. The exposed pad provides enhanced thermal dissipation and electrical connection reliability.

Q: What is the moisture sensitivity level (MSL) for these components?

A: Both components are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage procedures are sufficient; specialized dry-pack storage is not required.

Q: Are both parts compliant with environmental regulations?

A: Yes. Both PDTC123JQCZ and PDTC123JQC-QZ are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance restrictions.