PDZ4.7B-QZ Equivalent & Substitute Parts Engineering Reference

Part Overview

The Nexperia USA Inc. PDZ4.7B-QZ is an automotive-grade Zener diode classified under Diodes, Zener, with a rated Zener voltage of 4.7 V, 400 mW power dissipation, and a tolerance of ±2%. It is supplied in a surface-mount SOD-323 (SC-76) package. The device meets ROHS3 compliance and is AEC-Q101 automotive qualified, with a maximum junction temperature of 150°C. Finding alternative models is essential for supply chain assurance, maintaining design flexibility, and managing inventory fluctuations in automotive and high-reliability applications.

Key Parameters

Parameter	Value
Voltage - Zener (Nom) (Vz)	4.7 V
Tolerance	±2%
Power - Max	400 mW
Impedance (Max) (Zzt)	90 Ohms
Current - Reverse Leakage @ Vr	2 µA @ 1 V
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 100 mA
Operating Temperature	150°C (TJ)
Mounting Type	Surface Mount
Package / Case	SC-76, SOD-323
Supplier Device Package	SOD-323
RoHS Status	ROHS3 Compliant
Automotive Qualification	AEC-Q101

Substitute Part Grouping Explanation

Substitute parts are grouped strictly based on the following key parameters: Zener voltage (Vz), tolerance, maximum power dissipation, maximum impedance (Zzt), reverse leakage current, forward voltage at test current, operating temperature, mounting type, package/case, RoHS compliance, and automotive qualification. Substitutability is determined by exact matching in all listed parameters, with packaging compatibility (Surface Mount, SOD-323) and compliance (ROHS3, AEC-Q101) requirements met.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Zener (Nom) (Vz)	Tolerance	Power - Max	Impedance (Max) (Zzt)	Current - Reverse Leakage @ Vr	Voltage - Forward (Vf) (Max) @ If	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	RoHS Status	Automotive Qualification
PDZ4.7B-QZ	Nexperia USA Inc.	4.7 V	±2%	400 mW	90 Ohms	2 µA @ 1 V	1.1 V @ 100 mA	150°C (TJ)	Surface Mount	SC-76, SOD-323	SOD-323	ROHS3 Compliant	AEC-Q101
PDZ4.7B,115	Nexperia USA Inc.	4.7 V	±2%	400 mW	90 Ohms	2 µA @ 1 V	1.1 V @ 100 mA	150°C (TJ)	Surface Mount	SC-76, SOD-323	SOD-323	ROHS3 Compliant	AEC-Q101
PDZ4.7B,135	Nexperia USA Inc.	4.7 V	±2%	400 mW	90 Ohms	2 µA @ 1 V	1.1 V @ 100 mA	150°C (TJ)	Surface Mount	SC-76, SOD-323	SOD-323	ROHS3 Compliant	AEC-Q101

Engineering Selection Recommendations

All substitute Zener diodes listed (PDZ4.7B,115 and PDZ4.7B,135) meet the same electrical and mechanical parameters as the main part number PDZ4.7B-QZ. Each alternative maintains ROHS3 compliance, AEC-Q101 automotive qualification, and belongs to the same package and mounting specification. All are classified as active and available for inventory management and ongoing production.

Frequently Asked Questions (FAQ)

Q1: What criteria are used to define an equivalent Zener diode substitute?
A1: Only parts matching the Zener voltage, tolerance, power, impedance, reverse leakage, forward voltage, temperature rating, package, mounting type, RoHS status, and automotive qualification are considered equivalents.

Q2: Are there any differences between PDZ4.7B-QZ, PDZ4.7B,115, and PDZ4.7B,135?
A2: Based on provided parameters, there are no differences affecting form, fit, or function among these Zener diodes.

Q3: Can these substitute parts be used in automotive applications?
A3: Yes. All alternatives carry AEC-Q101 automotive qualification.

Q4: Are the package sizes and mounting types identical for all listed substitutes?
A4: Yes. All are SOD-323 (SC-76) in surface-mount configuration.

Q5: Is RoHS3 compliance maintained across all listed equivalent parts?
A5: Yes. All substitute parts, as well as the main part, are ROHS3 compliant.

Q6: Do the substitutes have the same moisture sensitivity and environmental compliance status?
A6: Yes. All listed parts are MSL 1 (Unlimited) and REACH unaffected.

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