PLZ30C-G3/H Zener Diode Equivalent & Substitute Parts

Part Overview

The PLZ30C-G3/H is a 30 V, 500 mW Zener diode manufactured by Vishay General Semiconductor - Diodes Division in the DO-219AC (microSMF) surface mount package. This component is classified as an active product and is RoHS3 compliant. Zener diodes in this voltage and power rating are used in voltage regulation, overvoltage protection, and reference circuits. Substitute parts are identified based on matching electrical specifications and mechanical compatibility to ensure direct functional replacement in circuit applications.

Key Parameters

Parameter	Value
Voltage - Zener (Nom) (Vz)	30 V
Tolerance	±3%
Power - Max	500 mW
Impedance (Max) (Zzt)	55 Ohms
Current - Reverse Leakage @ Vr	200 nA @ 23 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA
Operating Temperature	150°C
Mounting Type	Surface Mount
Package / Case	DO-219AC (microSMF)
Series	PLZ
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the PLZ30C-G3/H are identified as parametric equivalents within the PLZ series. Substitution is valid when the following criteria are met:

Zener voltage (Vz) matches at 30 V nominal
Tolerance specification matches at ±3%
Maximum power dissipation matches at 500 mW
Maximum impedance (Zzt) matches at 55 Ohms
Reverse leakage current matches at 200 nA @ 23 V
Forward voltage drop matches at 900 mV @ 10 mA
Operating temperature rating matches at 150°C
Package type matches as DO-219AC (microSMF)
Mounting type matches as Surface Mount
RoHS3 compliance and MSL rating are identical

All substitute parts listed are manufactured by Vishay General Semiconductor - Diodes Division and maintain the same series designation (PLZ30). The substitutes differ only in internal manufacturing process codes (suffix designations: B, C, D) which do not affect electrical or mechanical performance.

Parameter Comparison

Parameter	PLZ30C-G3/H	PLZ30B-G3/H	PLZ30D-G3/H
Voltage - Zener (Nom) (Vz)	30 V	30 V	30 V
Tolerance	±3%	±3%	±3%
Power - Max	500 mW	500 mW	500 mW
Impedance (Max) (Zzt)	55 Ohms	55 Ohms	55 Ohms
Current - Reverse Leakage @ Vr	200 nA @ 23 V	200 nA @ 23 V	200 nA @ 23 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA
Operating Temperature	150°C	150°C	150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-219AC	DO-219AC	DO-219AC
Series	PLZ	PLZ	PLZ
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All three parts—PLZ30C-G3/H, PLZ30B-G3/H, and PLZ30D-G3/H—are active products manufactured by Vishay General Semiconductor - Diodes Division and are fully interchangeable for circuit applications requiring a 30 V, 500 mW Zener diode in DO-219AC surface mount packaging.

Selection among these equivalents may be based on inventory availability:

PLZ30C-G3/H: 1,178 pieces in stock
PLZ30B-G3/H: 26,597 pieces in stock
PLZ30D-G3/H: 22,758 pieces in stock

All parts meet RoHS3 compliance requirements and carry REACH Unaffected status. Moisture sensitivity level is rated at MSL 1 (Unlimited), indicating no special moisture handling precautions are required during storage or assembly. The ECCN classification (EAR99) and HTSUS code (8541.10.0050) are identical across all three parts.

Frequently Asked Questions (FAQ)

Q: Can PLZ30B-G3/H or PLZ30D-G3/H be used as direct replacements for PLZ30C-G3/H?

A: Yes. All three parts are parametric equivalents with identical electrical specifications, power ratings, package types, and compliance certifications. They are directly interchangeable in circuit design and PCB layout.

Q: What do the suffix letters (B, C, D) in the part number indicate?

A: The suffix letters represent internal manufacturing process codes assigned by Vishay. These designations do not affect electrical performance, mechanical compatibility, or any specified parameter. They reflect different production batches or process variations that remain within the same specification envelope.

Q: Are there any differences in the DO-219AC package between these parts?

A: No. All three parts use the identical DO-219AC (microSMF) surface mount package. PCB footprints, solder pad dimensions, and mounting procedures are identical.

Q: What is the significance of the ±3% tolerance specification?

A: The ±3% tolerance indicates that the actual Zener voltage of any individual part will fall within the range of 29.1 V to 30.9 V. This tolerance applies equally to all three substitute parts and is the controlling specification for voltage regulation applications.

Q: Are these parts suitable for high-temperature applications?

A: These parts are rated for operation up to 150°C. This operating temperature rating applies uniformly across PLZ30C-G3/H, PLZ30B-G3/H, and PLZ30D-G3/H.

Q: What is the MSL 1 (Unlimited) moisture sensitivity rating?

A: MSL 1 (Unlimited) indicates the lowest moisture sensitivity level. These parts do not require special moisture-controlled storage or handling procedures and can be stored under standard industrial conditions without time-based restrictions.

Q: Can these parts be used in applications requiring REACH compliance?

A: Yes. All three parts carry REACH Unaffected status, indicating they are not subject to REACH substance restrictions and can be used in applications with REACH compliance requirements.

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