DZ2S02400L Equivalent & Substitute Parts

Part Overview

The DZ2S02400L is a 2.4 V Zener diode manufactured by Panasonic Electronic Components, rated for 150 mW power dissipation in a surface mount SSMini2-F5-B package. This component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent substitute parts for ongoing production and repair applications. Substitute parts must maintain the 2.4 V nominal Zener voltage, surface mount packaging compatibility, and electrical performance within specified tolerances to ensure functional equivalence in circuit applications.

Substiute Parts

DZ2S02400L

Panasonic Electronic ComponentsIn Stock: 4486DZ2S02400L Datasheet

Current PartRFQ

BZT585B2V4T-7

Diodes IncorporatedIn Stock: 21754BZT585B2V4T-7 Datasheet

SimilarRFQ

BZX585-B2V4,115

Nexperia USA Inc.In Stock: 6583BZX585-B2V4,115 Datasheet

SimilarRFQ

BZX585-C2V4,115

Nexperia USA Inc.In Stock: 6688BZX585-C2V4,115 Datasheet

SimilarRFQ

EDZVFHT2R2.4B

Rohm SemiconductorIn Stock: 8914EDZVFHT2R2.4B Datasheet

SimilarRFQ

EDZVT2R2.4B

Rohm SemiconductorIn Stock: 1769EDZVT2R2.4B Datasheet

SimilarRFQ

MM5Z2V4T1G

onsemiIn Stock: 35410MM5Z2V4T1G Datasheet

SimilarRFQ

SZMM5Z2V4T1G

onsemiIn Stock: 6829SZMM5Z2V4T1G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DZ2S02400L are selected based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Voltage - Zener (Nom): 2.4 V (exact match required)
• Package / Case: SC-79, SOD-523 (physical and electrical compatibility)
• Mounting Type: Surface Mount (assembly process compatibility)
• Impedance (Max): 100 Ohms (electrical performance)

Secondary Compatibility Factors:

• Tolerance: ±5% or tighter (voltage regulation accuracy)
• Power - Max: 150 mW or greater (thermal capability)
• Current - Reverse Leakage @ Vr: 120 µA @ 1 V or lower (leakage performance)
• RoHS Compliance: Required for environmental and regulatory compliance

Substitute parts are grouped into two categories based on power rating capability: parts rated at 150 mW (direct power equivalents) and parts rated above 150 mW (higher power capability with enhanced thermal performance). All substitute parts maintain the 2.4 V Zener voltage specification and SOD-523 package compatibility.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (150 mW Power Rating):

EDZVT2R2.4B (Rohm Semiconductor) provides the closest electrical match to the DZ2S02400L with identical 150 mW power rating, 100 Ohm impedance, and 120 µA reverse leakage current. This part is currently Active and ROHS3 Compliant. The EDZVFHT2R2.4B (Rohm Semiconductor) offers equivalent electrical performance but carries a "Not For New Designs" status, making it unsuitable for new production applications despite matching specifications.

Enhanced Performance Substitutes (300 mW Power Rating):

BZX585-C2V4,115 (Nexperia USA Inc.) matches the original ±5% tolerance specification while providing doubled power capability at 300 mW. This part is Active, ROHS3 Compliant, and AEC-Q100 qualified for automotive applications. BZX585-B2V4,115 (Nexperia USA Inc.) offers tighter ±2% tolerance with 300 mW rating and identical AEC-Q100 automotive qualification.

High Power Substitutes (350-500 mW Power Rating):

BZT585B2V4T-7 (Diodes Incorporated) provides 350 mW capability with ±2% tolerance and Active product status. SZMM5Z2V4T1G and MM5Z2V4T1G (onsemi) deliver 500 mW power dissipation with AEC-Q101 automotive qualification. The SZMM5Z2V4T1G variant includes automotive grade designation.

Selection Basis:

For direct replacement in existing designs with 150 mW power budget, EDZVT2R2.4B is the primary recommendation due to Active status and matching electrical characteristics. For new designs or applications requiring enhanced thermal performance, BZX585-C2V4,115 or BZX585-B2V4,115 are recommended based on tolerance requirements and automotive qualification needs. All recommended substitutes maintain SOD-523 package compatibility and RoHS compliance.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher power rating than the original DZ2S02400L?

A: Yes. Substitute parts rated at 300 mW or 500 mW are electrically compatible with circuits designed for the 150 mW DZ2S02400L. Higher power ratings provide enhanced thermal capability and do not affect circuit operation when the Zener voltage and impedance specifications are maintained. The circuit will operate identically to the original design.

Q: What is the significance of the ±5% tolerance specification?

A: The ±5% tolerance indicates the acceptable variation range of the Zener voltage from the nominal 2.4 V specification. The DZ2S02400L operates between 2.28 V and 2.52 V. Substitute parts with ±2% tolerance (2.352 V to 2.448 V) provide tighter voltage regulation. Parts with ±8.3% tolerance (2.2 V to 2.6 V) remain functionally compatible but with wider voltage variation.

Q: Are all substitute parts compatible with the SSMini2-F5-B package footprint?

A: All substitute parts use the SC-79 or SOD-523 package designation, which are physically and electrically equivalent. The SSMini2-F5-B is Panasonic's supplier designation for the SOD-523 package. Substitute parts in SOD-523 packaging are directly compatible with existing PCB layouts designed for the DZ2S02400L.

Q: What does "Not For New Designs" status mean for the EDZVFHT2R2.4B?

A: "Not For New Designs" indicates that while the part remains available and functional, the manufacturer recommends against using it in new product development. This status typically reflects manufacturer transition to newer alternatives. For new designs, select parts with "Active" product status such as EDZVT2R2.4B, BZX585-C2V4,115, or SZMM5Z2V4T1G.

Q: How do reverse leakage current specifications affect substitution?

A: The DZ2S02400L specifies 120 µA reverse leakage at 1 V. Substitute parts with 50 µA leakage (BZT585B2V4T-7, BZX585-B2V4,115, BZX585-C2V4,115, and onsemi variants) exhibit lower leakage, which improves circuit performance in high-impedance applications. Lower leakage is a beneficial characteristic and does not compromise compatibility.

Q: What is the difference between AEC-Q100 and AEC-Q101 qualifications?

A: AEC-Q100 qualification applies to discrete semiconductors for automotive applications with standard reliability requirements. AEC-Q101 qualification applies to discrete semiconductors for automotive applications with enhanced reliability requirements. Both qualifications ensure automotive-grade performance. SZMM5Z2V4T1G carries AEC-Q101 qualification, while BZX585 series parts carry AEC-Q100 qualification.

Q: Can I substitute the DZ2S02400L with MM5Z2V4T1G or SZMM5Z2V4T1G?

A: Yes. Both onsemi parts maintain the 2.4 V Zener voltage, 100 Ohm impedance, and SOD-523 package compatibility. The 500 mW power rating provides significant thermal margin above the original 150 mW specification. The primary consideration is the ±8.3% tolerance, which is wider than the original ±5% specification but remains within acceptable voltage regulation range for most applications.

Q: Is RoHS compliance maintained across all substitute parts?

A: Yes. The original DZ2S02400L is RoHS Compliant. All substitute parts listed are either RoHS Compliant or ROHS3 Compliant, meeting current environmental and regulatory requirements. ROHS3 Compliant parts meet the most current RoHS directive standards.