PDZ30B-QX Zener Diode Equivalent & Substitute Parts

Part Overview

The PDZ30B-QX is a 30 V, 400 mW Zener diode manufactured by Nexperia USA Inc. in the SOD-323 surface mount package. This component is classified as an active product and is AEC-Q101 qualified for automotive applications. The PDZ30B-QX is suitable for voltage regulation and protection circuits requiring a 30 V nominal Zener voltage with ±2% tolerance. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product category, packaging format, and compliance standards.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	30	V
Tolerance	±2	%
Power - Max	400	mW
Impedance (Max)	40	Ohms
Current - Reverse Leakage @ Vr	50 nA @ 23 V	nA
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 100 mA	V
Operating Temperature	150	°C (TJ)
Package / Case	SC-76, SOD-323	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the PDZ30B-QX are identified based on strict parametric equivalence. All substitute parts maintain identical electrical specifications across the following critical parameters:

Voltage - Zener (Nom): 30 V
Tolerance: ±2%
Power - Max: 400 mW
Impedance (Max): 40 Ohms
Current - Reverse Leakage @ Vr: 50 nA @ 23 V
Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 100 mA
Operating Temperature: 150°C (TJ)
Package / Case: SC-76, SOD-323
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

All substitute parts are manufactured by Nexperia USA Inc., classified as active products, and packaged in Tape & Reel (TR) format. Substitution is valid when these parameters are matched without deviation.

Parameter Comparison

Parameter	PDZ30B-QX	PDZ30B,115	PDZ30BF	PDZ30BZ
Manufacturer	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.
Category	Diodes, Zener	Diodes, Zener	Diodes, Zener	Diodes, Zener
Voltage - Zener (Nom)	30 V	30 V	30 V	30 V
Tolerance	±2%	±2%	±2%	±2%
Power - Max	400 mW	400 mW	400 mW	400 mW
Impedance (Max)	40 Ohms	40 Ohms	40 Ohms	40 Ohms
Current - Reverse Leakage @ Vr	50 nA @ 23 V	50 nA @ 23 V	50 nA @ 23 V	50 nA @ 23 V
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 100 mA	1.1 V @ 100 mA	1.1 V @ 100 mA	1.1 V @ 100 mA
Operating Temperature	150°C (TJ)	150°C (TJ)	150°C (TJ)	150°C (TJ)
Package / Case	SC-76, SOD-323	SC-76, SOD-323	SC-76, SOD-323	SC-76, SOD-323
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99	EAR99
HTSUS	8541.10.0050	8541.10.0050	8541.10.0050	8541.10.0050

Engineering Selection Recommendations

All listed substitute parts—PDZ30B,115, PDZ30BF, and PDZ30BZ—are direct parametric equivalents to the PDZ30B-QX. Selection among these parts is based on availability and inventory status:

PDZ30BZ: 30,877 pieces in stock
PDZ30BF: 10,920 pieces in stock
PDZ30B,115: 3,400 pieces in stock
PDZ30B-QX: 661 pieces in stock

All substitute parts maintain active product status and full compliance with ROHS3, REACH Unaffected, and export classification standards. The PDZ30B-QX carries AEC-Q101 automotive qualification; substitute parts do not list this qualification in the provided data. For applications requiring automotive-grade certification, the PDZ30B-QX is the specified choice. For general industrial and commercial applications where automotive qualification is not required, any of the substitute parts satisfy the electrical and mechanical requirements.

Frequently Asked Questions (FAQ)

Q: Can PDZ30BZ be used as a direct replacement for PDZ30B-QX?

A: Yes. PDZ30BZ maintains identical electrical parameters including 30 V nominal Zener voltage, ±2% tolerance, 400 mW maximum power, and all other specified characteristics. Both are packaged in SOD-323 surface mount format. The primary difference is that PDZ30B-QX carries AEC-Q101 automotive qualification, while PDZ30BZ does not list this certification.

Q: Are there any package or mounting differences between the substitute parts?

A: No. All parts—PDZ30B-QX, PDZ30B,115, PDZ30BF, and PDZ30BZ—use the SC-76, SOD-323 package with surface mount mounting type. They are mechanically and electrically interchangeable at the component level.

Q: What is the difference between PDZ30B,115 and PDZ30BF?

A: Both parts are parametric equivalents with identical electrical specifications and packaging. The designation difference reflects internal Nexperia manufacturing or distribution coding. No functional or performance difference exists between these parts.

Q: Can these Zener diodes be used in automotive applications?

A: The PDZ30B-QX is qualified to AEC-Q101 automotive standards. The substitute parts PDZ30B,115, PDZ30BF, and PDZ30BZ do not list AEC-Q101 qualification in the provided specifications. For automotive applications requiring this certification, PDZ30B-QX is the appropriate selection.

Q: What is the moisture sensitivity level for these parts?

A: All parts carry Moisture Sensitivity Level (MSL) 1, which indicates unlimited shelf life without moisture control requirements. Standard handling and storage practices are sufficient.

Q: Are these parts RoHS compliant?

A: Yes. All parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

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