PLZ33C-G3/H Equivalent & Substitute Parts

Part Overview

The PLZ33C-G3/H is a 33 V Zener diode rated at 500 mW, manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component is housed in a DO-219AC (microSMF) package and is designed for voltage regulation and protection applications in electronic circuits. The part is currently in active production status with 761 pieces in stock. Substitute parts are necessary to address supply chain continuity, inventory optimization, and application-specific requirements such as automotive qualification or tolerance specifications.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	33	V
Tolerance	±3%	—
Power - Maximum	500	mW
Impedance (Maximum)	65	Ohms
Current - Reverse Leakage @ Vr	200	nA @ 25 V
Voltage - Forward (Maximum) @ If	900	mV @ 10 mA
Operating Temperature	150	°C
Package / Case	DO-219AC (microSMF)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

All substitute parts for the PLZ33C-G3/H maintain identical electrical and mechanical specifications across the following critical parameters:

Electrical Parameters (Identical Across All Substitutes):

Zener voltage: 33 V nominal
Tolerance: ±3%
Maximum power dissipation: 500 mW
Maximum impedance: 65 Ohms
Reverse leakage current: 200 nA @ 25 V
Forward voltage: 900 mV maximum @ 10 mA
Operating temperature: 150°C maximum

Mechanical Parameters (Identical Across All Substitutes):

Package: DO-219AC (microSMF)
Mounting type: Surface Mount
Tape & Reel packaging

Compliance Parameters (Identical Across All Substitutes):

RoHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited)
REACH Unaffected
ECCN: EAR99
HTSUS: 8541.10.0050

Differentiation Factors: Substitute parts are differentiated by automotive qualification status. Parts designated with "HG3_A" suffix carry AEC-Q101 automotive qualification and are suitable for automotive applications. Parts without this designation are general-purpose industrial grade. All parts share the same base product number PLZ33 and are manufactured by Vishay General Semiconductor - Diodes Division.

Parameter Comparison

Part Number	Vz (V)	Tolerance	Power (mW)	Zzt (Ohms)	Vf Max (mV)	Package	Automotive Grade	Inventory (Pcs)
PLZ33C-G3/H	33	±3%	500	65	900	DO-219AC	No	761
PLZ33A-G3/H	33	±3%	500	65	900	DO-219AC	No	843
PLZ33A-HG3_A/H	33	±3%	500	65	900	DO-219AC	Yes (AEC-Q101)	1128
PLZ33B-G3/H	33	±3%	500	65	900	DO-219AC	No	724
PLZ33B-HG3_A/H	33	±3%	500	65	900	DO-219AC	Yes (AEC-Q101)	1144
PLZ33C-HG3_A/H	33	±3%	500	65	900	DO-219AC	Yes (AEC-Q101)	934
PLZ33D-G3/H	33	±3%	500	65	900	DO-219AC	No	1004

Engineering Selection Recommendations

For General Industrial Applications: Select from PLZ33A-G3/H, PLZ33B-G3/H, PLZ33C-G3/H, or PLZ33D-G3/H. These parts are functionally equivalent and suitable for non-automotive applications. Selection among these variants may be based on inventory availability and lead time considerations.

For Automotive Applications: Select from PLZ33A-HG3_A/H, PLZ33B-HG3_A/H, or PLZ33C-HG3_A/H. These parts carry AEC-Q101 automotive qualification and are required for automotive-grade circuit designs. All three automotive-qualified variants are electrically and mechanically identical and interchangeable.

Inventory Considerations: PLZ33B-HG3_A/H offers the highest inventory level at 1144 pieces, followed by PLZ33A-HG3_A/H at 1128 pieces. For non-automotive applications, PLZ33D-G3/H provides 1004 pieces in stock.

Compliance Status: All substitute parts maintain ROHS3 compliance, unlimited moisture sensitivity rating, and identical regulatory classifications (REACH Unaffected, ECCN EAR99, HTSUS 8541.10.0050).

Frequently Asked Questions (FAQ)

Q: Can I substitute PLZ33C-G3/H with any of the listed alternatives?

A: Yes, all listed parts are parametrically equivalent. PLZ33A-G3/H, PLZ33B-G3/H, and PLZ33D-G3/H are direct substitutes for general industrial applications. For automotive applications, use PLZ33A-HG3_A/H, PLZ33B-HG3_A/H, or PLZ33C-HG3_A/H instead.

Q: What is the difference between parts with and without the "HG3_A" designation?

A: Parts with "HG3_A" in the part number carry AEC-Q101 automotive qualification. Parts without this designation are general-purpose industrial grade. Electrically and mechanically, they are identical. Use automotive-qualified parts only in automotive applications where AEC-Q101 compliance is required.

Q: Are all substitute parts in the same package?

A: Yes, all substitute parts use the DO-219AC (microSMF) surface mount package. They are mechanically interchangeable on the same PCB layout.

Q: Do the substitute parts have the same electrical specifications?

A: Yes, all substitute parts have identical electrical specifications: 33 V nominal Zener voltage, ±3% tolerance, 500 mW power rating, 65 Ohms maximum impedance, 200 nA reverse leakage current, and 900 mV maximum forward voltage.

Q: Which substitute part should I choose if I need the highest inventory availability?

A: PLZ33B-HG3_A/H has the highest inventory at 1144 pieces. If automotive qualification is not required, PLZ33D-G3/H offers 1004 pieces in stock.

Q: Are all substitute parts RoHS compliant?

A: Yes, all substitute parts are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message