DZ2S03300L Equivalent & Substitute Parts

Part Overview

The DZ2S03300L is a 3.3 V Zener diode rated for 150 mW maximum power dissipation, manufactured by Panasonic Electronic Components in the SC-79/SOD-523 surface mount package. This component is designed for voltage regulation and protection applications in electronic circuits. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility with existing designs.

Substiute Parts

DZ2S03300L

Panasonic Electronic ComponentsIn Stock: 1768DZ2S03300L Datasheet

Current PartRFQ

EDZVFHT2R3.3B

Rohm SemiconductorIn Stock: 17108EDZVFHT2R3.3B Datasheet

SimilarRFQ

EDZVT2R3.3B

Rohm SemiconductorIn Stock: 88992EDZVT2R3.3B Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the DZ2S03300L is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Zener voltage: 3.3 V nominal
• Maximum power dissipation: 150 mW
• Reverse leakage current: 20 µA @ 1 V
• Package type: SC-79/SOD-523 surface mount

Mechanical Compatibility:

• Surface mount configuration
• Identical package footprint (SC-79, SOD-523)

Compliance Requirements:

• RoHS3 compliance
• MSL rating of 1 (Unlimited)

The substitute parts identified below meet all electrical and mechanical requirements for direct replacement in the same circuit application. Tolerance variations and impedance differences within the specified ranges do not preclude functional substitution.

Parameter Comparison

Engineering Selection Recommendations

EDZVT2R3.3B (Rohm Semiconductor) - Primary Substitute

The EDZVT2R3.3B is the preferred substitute for the discontinued DZ2S03300L. This part maintains active product status, ensuring long-term availability and supply chain continuity. It meets all electrical specifications, operates across the temperature range of -55°C to 150°C, and carries ROHS3 compliance with unlimited moisture sensitivity rating. The EDZV series designation indicates a mature, production-qualified product line.

EDZVFHT2R3.3B (Rohm Semiconductor) - Secondary Substitute

The EDZVFHT2R3.3B provides an alternative with automotive-grade qualification (AEC-Q101) and tighter tolerance specification (±3.18% versus ±5%). This part is designated "Not For New Designs," indicating it remains available for legacy system support but is not recommended for new product development. The automotive qualification may provide additional reliability assurance for applications requiring such certification.

Both substitute parts are functionally equivalent to the DZ2S03300L across all critical electrical and mechanical parameters. Selection between them depends on application requirements regarding product lifecycle status and automotive qualification.

Frequently Asked Questions (FAQ)

Q: Can the EDZVT2R3.3B directly replace the DZ2S03300L without circuit modification?

A: Yes. Both parts share identical zener voltage (3.3 V), maximum power rating (150 mW), reverse leakage current (20 µA @ 1 V), and package configuration (SC-79/SOD-523). No circuit modifications are required for direct substitution.

Q: What is the significance of the tolerance difference between DZ2S03300L (±5%) and EDZVFHT2R3.3B (±3.18%)?

A: The EDZVFHT2R3.3B provides tighter voltage tolerance, resulting in more precise zener voltage regulation. This may be beneficial in applications with strict voltage regulation requirements, but both parts are functionally compatible in standard voltage regulation circuits.

Q: Why is EDZVFHT2R3.3B marked "Not For New Designs"?

A: This designation indicates the part remains available for existing product support but is not recommended for new product development. For new designs, EDZVT2R3.3B is the preferred choice due to its active product status.

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

A: No. All three parts use the SC-79/SOD-523 surface mount package with identical footprints. PCB layout modifications are not necessary when substituting between these parts.

Q: What is the operating temperature range for each substitute?

A: The DZ2S03300L does not specify an operating temperature range in the provided data. The EDZVFHT2R3.3B operates to 150°C (TJ). The EDZVT2R3.3B operates across -55°C to 150°C, providing the widest temperature range among the available options.

Q: Do all parts meet RoHS3 compliance requirements?

A: Yes. The DZ2S03300L, EDZVFHT2R3.3B, and EDZVT2R3.3B are all ROHS3 compliant with MSL rating of 1 (Unlimited), ensuring compatibility with modern manufacturing and environmental standards.

Q: What is the impedance difference between the main part and substitutes?

A: The DZ2S03300L specifies maximum impedance of 130 Ohms, while both Rohm substitutes specify 120 Ohms maximum. This lower impedance in the substitutes results in improved voltage regulation characteristics and is not a limiting factor for substitution.