PLZ11C-G3/H Equivalent & Substitute Parts

Part Overview

The PLZ11C-G3/H is a Zener diode manufactured by Vishay General Semiconductor - Diodes Division, rated at 11 V nominal with 500 mW power dissipation in a surface mount DO-219AC (microSMF) package. The device is Active product status and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, inventory management, or component availability across manufacturing batches and qualification grades.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	11	V
Tolerance	±3%	—
Power - Max	500	mW
Impedance (Max)	10	Ohms
Current - Reverse Leakage @ Vr	200 nA @ 8 V	—
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	—
Operating Temperature	150	°C
Package / Case	DO-219AC	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the PLZ11C-G3/H is determined by strict equivalence across the following parameters:

Electrical Parameters (Must Match):

Voltage - Zener (Nom): 11 V
Tolerance: ±3%
Power - Max: 500 mW
Impedance (Max): 10 Ohms
Current - Reverse Leakage @ Vr: 200 nA @ 8 V
Voltage - Forward (Vf) (Max) @ If: 900 mV @ 10 mA
Operating Temperature: 150°C

Mechanical Parameters (Must Match):

Package / Case: DO-219AC
Mounting Type: Surface Mount
Supplier Device Package: DO-219AC (microSMF)

Compliance Parameters (Must Match):

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
REACH Status: REACH Unaffected

All substitute parts listed below meet these criteria. Two substitute parts carry automotive qualification (AEC-Q101) and automotive grade designation; these are functionally equivalent but serve specialized application requirements.

Parameter Comparison

Parameter	PLZ11C-G3/H	PLZ11A-G3/H	PLZ11B-G3/H	PLZ11B-HG3_A/H	PLZ11C-HG3_A/H
Voltage - Zener (Nom)	11 V	11 V	11 V	11 V	11 V
Tolerance	±3%	±3%	±3%	±3%	±3%
Power - Max	500 mW	500 mW	500 mW	500 mW	500 mW
Impedance (Max)	10 Ohms	10 Ohms	10 Ohms	10 Ohms	10 Ohms
Current - Reverse Leakage @ Vr	200 nA @ 8 V	200 nA @ 8 V	200 nA @ 8 V	200 nA @ 8 V	200 nA @ 8 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA
Operating Temperature	150°C	150°C	150°C	150°C	150°C
Package / Case	DO-219AC	DO-219AC	DO-219AC	DO-219AC	DO-219AC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Grade	Standard	Standard	Standard	Automotive	Automotive
Qualification	—	—	—	AEC-Q101	AEC-Q101

Engineering Selection Recommendations

All substitute parts are Active product status and ROHS3 compliant. Selection between standard-grade and automotive-grade variants depends on application requirements:

Standard Grade (PLZ11C-G3/H, PLZ11A-G3/H, PLZ11B-G3/H): Suitable for general industrial and consumer applications where automotive qualification is not required. These parts are electrically and mechanically identical to one another.

Automotive Grade (PLZ11B-HG3_A/H, PLZ11C-HG3_A/H): Carry AEC-Q101 qualification and automotive grade designation. These parts meet automotive industry reliability and qualification standards and are required for automotive applications. They are electrically and mechanically identical to standard-grade variants but undergo additional qualification testing.

All parts share identical electrical performance, package geometry, and compliance status. Selection among standard-grade variants is based on inventory availability. Selection of automotive-grade variants is based on application classification and qualification requirements.

Frequently Asked Questions (FAQ)

Q: Can PLZ11A-G3/H be used in place of PLZ11C-G3/H?

A: Yes. Both parts are electrically and mechanically identical, with matching voltage rating (11 V), tolerance (±3%), power rating (500 mW), impedance (10 Ohms), and package (DO-219AC). Both are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between standard-grade and automotive-grade variants?

A: Standard-grade parts (PLZ11C-G3/H, PLZ11A-G3/H, PLZ11B-G3/H) and automotive-grade parts (PLZ11B-HG3_A/H, PLZ11C-HG3_A/H) are electrically and mechanically identical. Automotive-grade variants carry AEC-Q101 qualification and automotive grade designation, required for automotive applications. Standard-grade parts are suitable for non-automotive applications.

Q: Are all substitute parts in the same package?

A: Yes. All substitute parts use the DO-219AC (microSMF) surface mount package. PCB footprint and reflow soldering parameters are identical across all variants.

Q: Can automotive-grade parts be used in non-automotive applications?

A: Yes. Automotive-grade parts meet or exceed standard-grade specifications and can be used in any application where standard-grade parts are specified. Automotive qualification provides additional reliability assurance.

Q: What determines substitution eligibility for the PLZ11C-G3/H?

A: Substitution is determined by matching voltage rating (11 V), tolerance (±3%), power dissipation (500 mW), impedance (10 Ohms), reverse leakage current (200 nA @ 8 V), forward voltage (900 mV @ 10 mA), operating temperature (150°C), package type (DO-219AC), mounting method (surface mount), and compliance status (ROHS3, MSL 1). All listed parts meet these criteria.

Q: Is there a performance difference between the different letter designations (A, B, C)?

A: No. The letter designations (A, B, C) in the part number represent manufacturing batches or revisions. All variants with matching electrical and mechanical parameters are functionally equivalent.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. All substitute parts share identical electrical characteristics, package dimensions, and pin configuration. They are directly interchangeable at the component level without circuit modification or PCB redesign.

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