DZ2S033M0L Zener Diode Equivalent & Substitute Parts

Part Overview

The DZ2S033M0L is a 3.3 V zener diode manufactured by Panasonic Electronic Components, rated for 150 mW power dissipation in a surface mount SC-79/SOD-523 package. This component is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing production and maintenance applications. Substitute parts must maintain electrical performance within the specified voltage, power, and impedance parameters while accommodating the surface mount packaging requirements.

Substiute Parts

DZ2S033M0L

Panasonic Electronic ComponentsIn Stock: 1009DZ2S033M0L 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 DZ2S033M0L is determined by equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Zener voltage: 3.3 V nominal
• Power rating: 150 mW maximum
• Reverse leakage current: 20 µA @ 1 V
• Forward voltage: 1 V @ 10 mA
• Impedance: maximum 130 Ohms

Mechanical Equivalence Criteria:

• Mounting type: Surface Mount
• Package designation: SC-79 or SOD-523
• Moisture sensitivity: MSL 1 (Unlimited)

Compliance Criteria:

• RoHS compliance status
• ECCN and HTSUS classifications

Substitute parts EDZVFHT2R3.3B and EDZVT2R3.3B satisfy all electrical parameters within acceptable tolerances and maintain identical packaging and moisture sensitivity specifications. Both parts are manufactured by Rohm Semiconductor and utilize the EMD2 supplier device package, which is mechanically and electrically compatible with the original SSMini2-F5-B package.

Parameter Comparison

Engineering Selection Recommendations

EDZVT2R3.3B (Rohm Semiconductor) - Primary Selection

This part is the preferred substitute for new designs and ongoing production. It maintains active product status, ensuring long-term availability and supply chain stability. The EDZVT2R3.3B operates across the extended temperature range of -55°C to 150°C, providing superior thermal performance compared to the original DZ2S033M0L. All electrical parameters meet or exceed the original specification: 3.3 V nominal zener voltage, 150 mW power rating, 120 Ohms maximum impedance, and 20 µA reverse leakage current. The part is ROHS3 compliant and REACH unaffected, satisfying current regulatory requirements. The EMD2 package is mechanically and electrically equivalent to the original SSMini2-F5-B package.

EDZVFHT2R3.3B (Rohm Semiconductor) - Secondary Selection

This part is suitable for applications requiring automotive-grade qualification. It carries AEC-Q101 certification and is rated for 150°C junction temperature. The zener voltage tolerance of ±3.18% is slightly wider than the original ±2.5%, but remains within acceptable circuit design margins. The impedance specification of 120 Ohms is superior to the original 130 Ohms maximum. This part is designated "Not For New Designs," indicating limited future availability; however, it remains suitable for legacy system maintenance and repair applications requiring automotive-grade components.

Frequently Asked Questions (FAQ)

Q: Can EDZVT2R3.3B directly replace DZ2S033M0L in existing circuit boards?

A: Yes. Both parts utilize the SC-79/SOD-523 package designation with identical pin configurations and footprints. The EMD2 supplier package is mechanically and electrically compatible with the original SSMini2-F5-B package. No circuit board modifications are required.

Q: What is the significance of the impedance difference between the original part (130 Ohms max) and the substitutes (120 Ohms max)?

A: The substitute parts feature lower maximum impedance, which represents improved electrical performance. Lower impedance results in better voltage regulation and reduced output impedance under load conditions. This change is beneficial and does not introduce compatibility issues.

Q: Why is EDZVT2R3.3B recommended over EDZVFHT2R3.3B?

A: EDZVT2R3.3B maintains active product status, ensuring continued availability and supply chain support. EDZVFHT2R3.3B is designated "Not For New Designs," indicating potential future discontinuation. For new production, EDZVT2R3.3B is the appropriate selection. EDZVFHT2R3.3B remains suitable for maintenance and repair of existing systems, particularly those requiring automotive-grade components.

Q: Are there tolerance differences that affect circuit performance?

A: The original DZ2S033M0L specifies ±2.5% tolerance, while EDZVFHT2R3.3B specifies ±3.18%. EDZVT2R3.3B does not specify tolerance in the provided data. The tolerance difference of 0.68% is within typical circuit design margins for zener diode applications. Circuit designs accommodating the original ±2.5% tolerance will function correctly with the substitute parts.

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

A: The original DZ2S033M0L does not specify an operating temperature range. EDZVFHT2R3.3B is rated to 150°C junction temperature. EDZVT2R3.3B operates across -55°C to 150°C, providing the widest thermal operating range. For applications requiring extended temperature performance, EDZVT2R3.3B is the superior choice.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both EDZVFHT2R3.3B and EDZVT2R3.3B are ROHS3 compliant. The original DZ2S033M0L is RoHS compliant. All three parts meet current RoHS requirements and are suitable for applications subject to RoHS regulations.

Q: What is the moisture sensitivity level for the substitute parts?

A: Both substitute parts maintain MSL 1 (Unlimited), identical to the original DZ2S033M0L. This classification indicates unlimited shelf life under standard storage conditions without moisture bake requirements prior to soldering.