Equivalent & Substitute Parts for DZ2J240M0L

Part Overview

The DZ2J240M0L is a Zener diode manufactured by Panasonic Electronic Components, rated at 24 V nominal Zener voltage with 200 mW maximum power dissipation. This surface mount component is packaged in SC-90/SOD-323F configuration and features ±2.5% voltage tolerance. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines. Substitute parts must maintain the 24 V Zener voltage specification and surface mount compatibility while accommodating variations in power rating, tolerance, and package designations within the SMini2 and UMD2 families.

Substiute Parts

DZ2J240M0L

Panasonic Electronic ComponentsIn Stock: 16844DZ2J240M0L Datasheet

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TDZTR24

Rohm SemiconductorIn Stock: 215288TDZTR24 Datasheet

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UDZSTE-1724B

Rohm SemiconductorIn Stock: 83550UDZSTE-1724B Datasheet

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UDZVFHTE-1724B

Rohm SemiconductorIn Stock: 4077UDZVFHTE-1724B Datasheet

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UDZVTE-1724B

Rohm SemiconductorIn Stock: 10153UDZVTE-1724B Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the DZ2J240M0L is determined by the following critical parameters:

Primary Substitution Criteria:

• Voltage - Zener (Nom): Must equal 24 V
• Mounting Type: Must be Surface Mount
• Package / Case: Must be SC-90/SOD-323F or equivalent SMini2/UMD2 footprint
• RoHS Compliance: Must meet RoHS3 or equivalent environmental standards

Secondary Compatibility Parameters:

• Power - Max: Minimum 200 mW (higher ratings acceptable for thermal margin)
• Tolerance: ±2.5% or tighter (±2%, ±2.21% acceptable; ±10% represents relaxed tolerance)
• Current - Reverse Leakage: Specified at measurement voltage (19 V reference)
• Impedance (Max): Specified for dynamic resistance characteristics

Substitute Classification:

Group A - Direct Electrical Equivalents (200 mW Power Rating): UDZSTE-1724B, UDZVFHTE-1724B, UDZVTE-1724B — These parts maintain the 200 mW power specification with matching or superior tolerance performance and identical package footprint compatibility.

Group B - Higher Power Rating Alternative (500 mW Power Rating): TDZTR24 — This part provides increased power dissipation capability (500 mW) with the same 24 V Zener voltage, suitable for applications requiring thermal margin, though package footprint differs (TUMD2 vs. SMini2).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Footprint and Power Rating):

UDZSTE-1724B is the primary substitute for DZ2J240M0L. This Rohm Semiconductor part maintains 200 mW power dissipation, 24 V Zener voltage, and SC-90/SOD-323F package compatibility. The ±2% tolerance specification is superior to the original ±2.5%, providing tighter voltage regulation. Product status is Active with ROHS3 compliance and unlimited moisture sensitivity rating. Impedance specification of 120 Ohms (versus 100 Ohms on the original) represents acceptable variation within the UMD2 package family. Reverse leakage current of 100 nA at 19 V is within acceptable limits for this device class.

UDZVTE-1724B provides an alternative direct replacement with identical electrical specifications to UDZSTE-1724B, with the exception that tolerance is not specified in the provided data. This part is suitable where tolerance specification is not a critical design parameter.

For Automotive-Grade Applications:

UDZVFHTE-1724B is specified for automotive applications with AEC-Q101 qualification and maximum junction temperature rating of 150°C. This part maintains 200 mW power rating and 24 V Zener voltage with ±2.21% tolerance. Package footprint is SC-90/SOD-323F, ensuring mechanical compatibility. Selection of this variant is appropriate for automotive or high-reliability applications requiring AEC-Q101 qualification.

For Increased Thermal Margin:

TDZTR24 provides 500 mW power dissipation (2.5× the original specification) with 24 V Zener voltage and ±10% tolerance. This part is suitable for applications requiring additional thermal headroom or where the original 200 mW rating presents thermal constraints. Package footprint is TUMD2 (2-SMD, Flat Lead), which differs from the original SMini2-F5-B. PCB layout modification is required for this substitution. Reverse leakage current is significantly higher (10 µA at 16 V) compared to the original (50 nA at 19 V), which may impact circuit performance in sensitive applications. Product status is Active with ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can UDZSTE-1724B be used as a direct replacement for DZ2J240M0L without PCB modification?

A: Yes. UDZSTE-1724B maintains identical package footprint (SC-90/SOD-323F), 24 V Zener voltage, and 200 mW power rating. The ±2% tolerance is superior to the original ±2.5%. No PCB layout changes are required.

Q: What is the difference between UDZSTE-1724B, UDZVFHTE-1724B, and UDZVTE-1724B?

A: All three parts share 24 V Zener voltage, 200 mW power rating, and SC-90/SOD-323F package compatibility. UDZVFHTE-1724B includes AEC-Q101 automotive qualification with 150°C maximum junction temperature rating. UDZSTE-1724B specifies ±2% tolerance. UDZVTE-1724B does not specify tolerance in the provided data. Selection depends on application requirements for automotive qualification and tolerance specification.

Q: Why does TDZTR24 have a different package designation (TUMD2 vs. SMini2)?

A: TDZTR24 is manufactured in the TUMD2 package (2-SMD, Flat Lead), which differs from the original SMini2-F5-B package. While both are surface mount packages for 24 V Zener diodes, the physical footprint and land pattern differ. PCB redesign is required for TDZTR24 substitution.

Q: Is TDZTR24 suitable for all applications requiring DZ2J240M0L?

A: TDZTR24 is suitable for applications where increased power dissipation (500 mW vs. 200 mW) is beneficial or required. However, the ±10% tolerance is significantly relaxed compared to the original ±2.5%, and reverse leakage current is substantially higher (10 µA vs. 50 nA). Applications requiring tight voltage regulation or low leakage current should use UDZSTE-1724B, UDZVFHTE-1724B, or UDZVTE-1724B instead. PCB layout modification is mandatory for TDZTR24 due to package differences.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed (UDZSTE-1724B, UDZVFHTE-1724B, UDZVTE-1724B, TDZTR24) are ROHS3 compliant. The original DZ2J240M0L is RoHS compliant. All parts maintain Moisture Sensitivity Level 1 (Unlimited).

Q: What is the significance of the impedance specification difference (100 Ohms vs. 120 Ohms)?

A: Impedance (Zzt) represents the dynamic resistance of the Zener diode at specified operating conditions. The difference between 100 Ohms (original) and 120 Ohms (substitutes) is within acceptable variation for the UMD2 package family and does not preclude substitution. Applications with stringent impedance requirements should verify circuit performance through simulation or testing.

Q: Can I use UDZVFHTE-1724B in non-automotive applications?

A: Yes. UDZVFHTE-1724B is qualified for automotive applications (AEC-Q101) but is suitable for general-purpose applications as well. The automotive qualification represents an additional quality assurance level and does not restrict use in non-automotive circuits. This part is appropriate for applications requiring high reliability or extended temperature operation.