PLZ22C-G3/H Zener Diode Equivalent & Substitute Parts

Part Overview

The PLZ22C-G3/H is a 22 V, 500 mW surface mount zener diode manufactured by Vishay General Semiconductor - Diodes Division. This component operates in the DO-219AC (microSMF) package and maintains an active product status. The PLZ22C-G3/H serves voltage regulation and protection functions in electronic circuits requiring stable reference voltages at 22 V nominal.

Substitute parts become necessary due to inventory constraints, supply chain disruptions, or design flexibility requirements. The following equivalent zener diodes share identical electrical specifications and mechanical packaging, enabling direct substitution in applications where the PLZ22C-G3/H is specified.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	22	V
Tolerance	±3	%
Power - Maximum	500	mW
Impedance (Maximum)	30	Ohms
Current - Reverse Leakage @ 17 V	200	nA
Voltage - Forward (Maximum) @ 10 mA	900	mV
Operating Temperature	150	°C
Package / Case	DO-219AC (microSMF)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

All substitute parts for the PLZ22C-G3/H are classified as parametric equivalents. Substitution eligibility is determined by matching the following critical parameters:

Electrical Specifications:

Zener voltage: 22 V nominal
Tolerance: ±3%
Maximum power dissipation: 500 mW
Maximum impedance: 30 Ohms
Reverse leakage current: 200 nA @ 17 V
Forward voltage: 900 mV maximum @ 10 mA
Operating temperature: 150°C maximum

Mechanical Specifications:

Package type: DO-219AC (microSMF)
Mounting configuration: Surface Mount
Packaging format: Tape & Reel (TR)

Compliance & Status:

Product status: Active
RoHS compliance: ROHS3 Compliant
Moisture sensitivity level: 1 (Unlimited)
REACH status: REACH Unaffected

The substitute parts PLZ22A-HG3_A/H, PLZ22B-HG3_A/H, and PLZ22D-HG3_A/H satisfy all electrical and mechanical requirements for direct substitution. These parts additionally carry automotive-grade qualification (AEC-Q101), which represents an enhanced reliability classification.

Parameter Comparison

Parameter	PLZ22C-G3/H	PLZ22A-HG3_A/H	PLZ22B-HG3_A/H	PLZ22D-HG3_A/H
Voltage - Zener (Nominal)	22 V	22 V	22 V	22 V
Tolerance	±3%	±3%	±3%	±3%
Power - Maximum	500 mW	500 mW	500 mW	500 mW
Impedance (Maximum)	30 Ohms	30 Ohms	30 Ohms	30 Ohms
Current - Reverse Leakage @ 17 V	200 nA	200 nA	200 nA	200 nA
Voltage - Forward (Maximum) @ 10 mA	900 mV	900 mV	900 mV	900 mV
Operating Temperature	150°C	150°C	150°C	150°C
Package / Case	DO-219AC	DO-219AC	DO-219AC	DO-219AC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Grade	Standard	Automotive	Automotive	Automotive
Qualification	Not specified	AEC-Q101	AEC-Q101	AEC-Q101

Engineering Selection Recommendations

All substitute parts maintain identical electrical and mechanical specifications to the PLZ22C-G3/H, ensuring functional compatibility in circuit applications. The primary distinction between the main part and substitute options is the automotive-grade classification and AEC-Q101 qualification present in PLZ22A-HG3_A/H, PLZ22B-HG3_A/H, and PLZ22D-HG3_A/H.

For Standard Applications: The PLZ22C-G3/H remains the baseline specification. Substitution with any of the three equivalent parts is permissible without circuit redesign or performance degradation.

For Automotive or High-Reliability Applications: PLZ22A-HG3_A/H, PLZ22B-HG3_A/H, or PLZ22D-HG3_A/H are preferred selections due to AEC-Q101 qualification, which certifies compliance with automotive industry reliability and quality standards.

Inventory Considerations: Current stock levels are: PLZ22C-G3/H (1171 pcs), PLZ22A-HG3_A/H (1021 pcs), PLZ22B-HG3_A/H (824 pcs), and PLZ22D-HG3_A/H (928 pcs). Selection may be influenced by availability and procurement lead times.

All parts are manufactured by Vishay General Semiconductor - Diodes Division, maintaining consistent quality and reliability across the PLZ22 series.

Frequently Asked Questions (FAQ)

Q: Can PLZ22A-HG3_A/H, PLZ22B-HG3_A/H, or PLZ22D-HG3_A/H be used as direct replacements for PLZ22C-G3/H?

A: Yes. All substitute parts share identical electrical specifications (22 V nominal, 500 mW, ±3% tolerance) and mechanical packaging (DO-219AC surface mount). Direct substitution is permissible without circuit modification.

Q: What is the difference between PLZ22C-G3/H and the automotive-grade substitutes?

A: The PLZ22C-G3/H is a standard-grade component. PLZ22A-HG3_A/H, PLZ22B-HG3_A/H, and PLZ22D-HG3_A/H carry automotive-grade classification with AEC-Q101 qualification, indicating enhanced reliability testing and quality assurance for automotive applications. Electrical performance is identical.

Q: Are all parts in the same package?

A: Yes. All parts use the DO-219AC (microSMF) surface mount package in Tape & Reel (TR) format. PCB footprints and reflow soldering profiles are identical.

Q: Do the substitute parts have the same compliance certifications?

A: All parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. The substitute parts additionally hold AEC-Q101 automotive qualification.

Q: Can I mix PLZ22C-G3/H with substitute parts in the same production batch?

A: Yes. Electrical and mechanical specifications are identical, permitting interchangeability within the same circuit design and manufacturing process.

Q: Which substitute part should I select if all are available?

A: Selection depends on application requirements. For automotive or high-reliability applications, choose PLZ22A-HG3_A/H, PLZ22B-HG3_A/H, or PLZ22D-HG3_A/H. For standard applications, any part is suitable. Inventory availability and procurement lead times may also influence selection.

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