PLZ22A-G3/H Zener Diode Equivalent & Substitute Parts

Part Overview

The PLZ22A-G3/H is a 22 V, 500 mW Zener diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the DO-219AC (microSMF) package and is classified as an active product with full RoHS3 compliance. Zener diodes of this specification are used in voltage regulation, overvoltage protection, and reference voltage circuits. Substitute parts become necessary due to inventory constraints, supply chain disruptions, or design flexibility requirements while maintaining identical electrical and mechanical performance.

Substiute Parts

PLZ22A-G3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 824PLZ22A-G3/H Datasheet

Current PartRFQ

PLZ22A-HG3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 1131PLZ22A-HG3_A/H Datasheet

Parametric EquivalentRFQ

PLZ22B-HG3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 834PLZ22B-HG3_A/H Datasheet

Parametric EquivalentRFQ

PLZ22D-HG3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 960PLZ22D-HG3_A/H Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PLZ22A-G3/H is valid with the following Vishay PLZ22 series components: PLZ22A-HG3_A/H, PLZ22B-HG3_A/H, and PLZ22D-HG3_A/H. All substitute parts maintain identical electrical specifications across the critical parameters that define zener diode functionality:

• 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 @ 10 mA
• Operating temperature: 150°C

All substitute parts share the same DO-219AC (microSMF) surface mount package, identical RoHS3 compliance status, and unlimited moisture sensitivity level (MSL 1). The substitutes designated with the HG3_A/H suffix carry automotive-grade qualification (AEC-Q101), which represents an enhanced reliability classification. The original PLZ22A-G3/H part does not carry automotive qualification but is otherwise electrically and mechanically interchangeable with the qualified variants.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are direct functional equivalents to the PLZ22A-G3/H based on identical electrical and mechanical parameters. Selection between the main part and substitutes should be based on the following criteria:

Standard Grade Applications: The PLZ22A-G3/H is suitable for general industrial and consumer applications where automotive qualification is not required. This part maintains full RoHS3 compliance and unlimited moisture sensitivity rating.

Automotive-Grade Applications: The PLZ22A-HG3_A/H, PLZ22B-HG3_A/H, and PLZ22D-HG3_A/H variants carry AEC-Q101 automotive qualification. These parts are required for automotive circuits, safety-critical systems, or applications with enhanced reliability requirements. All three automotive-qualified variants are electrically and mechanically identical and interchangeable.

Inventory Availability: Current stock levels are: PLZ22A-G3/H (806 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 supply availability and lead time requirements.

Compliance Requirements: All parts maintain ROHS3 compliance, REACH unaffected status, and identical ECCN and HTSUS classifications, ensuring regulatory compatibility across all substitution options.

Frequently Asked Questions (FAQ)

Q: Can PLZ22A-HG3_A/H, PLZ22B-HG3_A/H, and PLZ22D-HG3_A/H be used interchangeably with PLZ22A-G3/H?

A: Yes. All substitute parts maintain identical electrical specifications (22 V nominal zener voltage, ±3% tolerance, 500 mW power rating, 30 Ohms maximum impedance, 200 nA reverse leakage, and 900 mV forward voltage). The DO-219AC package and surface mount configuration are identical. The primary difference is the automotive-grade qualification (AEC-Q101) on the substitute variants, which represents enhanced reliability screening but does not affect electrical performance.

Q: What is the difference between the standard PLZ22A-G3/H and the automotive-qualified variants?

A: The PLZ22A-G3/H is a standard-grade component suitable for general applications. The PLZ22A-HG3_A/H, PLZ22B-HG3_A/H, and PLZ22D-HG3_A/H variants carry AEC-Q101 automotive qualification, indicating compliance with automotive industry reliability and testing standards. Electrically and mechanically, all parts are identical.

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

A: No. All parts use the DO-219AC (microSMF) surface mount package with identical pin configuration and footprint. All are classified as surface mount components with unlimited moisture sensitivity (MSL 1).

Q: Do all substitute parts have the same RoHS and REACH compliance status?

A: Yes. All parts are ROHS3 compliant and REACH unaffected. They share identical ECCN (EAR99) and HTSUS (8541.10.0050) classifications.

Q: Which substitute part should be selected for automotive applications?

A: Any of the three automotive-qualified variants—PLZ22A-HG3_A/H, PLZ22B-HG3_A/H, or PLZ22D-HG3_A/H—are suitable for automotive applications due to AEC-Q101 qualification. Selection between these three can be based on inventory availability and lead time.

Q: Is the ±3% tolerance specification maintained across all substitute parts?

A: Yes. All parts, including the main part and all substitutes, maintain ±3% tolerance on the 22 V nominal zener voltage specification.

Q: Can these parts be used in high-temperature applications?

A: All parts are rated for operation up to 150°C maximum operating temperature. This specification is identical across the main part and all substitutes.