DZ2J20000L Equivalent & Substitute Parts

Part Overview

The DZ2J20000L is a Zener diode manufactured by Panasonic Electronic Components, rated for 20 V nominal voltage and 200 mW maximum power dissipation. This component is designed for surface mount applications in the SC-90 and SOD-323F package formats. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers to maintain design continuity and support ongoing production requirements.

Substiute Parts

DZ2J20000L

Panasonic Electronic ComponentsIn Stock: 4770DZ2J20000L Datasheet

Current PartRFQ

UDZSTE-1720B

Rohm SemiconductorIn Stock: 64826UDZSTE-1720B Datasheet

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UDZVFHTE-1720B

Rohm SemiconductorIn Stock: 3483UDZVFHTE-1720B Datasheet

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UDZVTE-1720B

Rohm SemiconductorIn Stock: 52453UDZVTE-1720B Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the DZ2J20000L is determined by strict equivalence across the following critical parameters:

Primary Matching Criteria:

• Voltage - Zener (Nom): 20 V
• Power - Max: 200 mW
• Mounting Type: Surface Mount
• Package / Case: SC-90, SOD-323F

Secondary Compatibility Parameters:

• Impedance (Max): 80 Ohms (main part) to 85 Ohms (substitute parts) — within acceptable operational range
• Current - Reverse Leakage @ Vr: 50 nA (main part) to 100 nA (substitute parts) — acceptable variance
• Tolerance: ±5% (main part) to ±2% or ±2.18% (substitute parts) — substitute parts offer tighter tolerance
• RoHS Status: All parts meet RoHS compliance requirements
• Moisture Sensitivity Level: All parts rated MSL 1 (Unlimited)

The three substitute parts listed below meet all primary matching criteria and are functionally equivalent for direct replacement in the DZ2J20000L application.

Parameter Comparison

Engineering Selection Recommendations

UDZSTE-1720B (Rohm Semiconductor)

This part is recommended as the primary substitute for general-purpose applications. It maintains full electrical equivalence with the DZ2J20000L across all critical parameters. The UDZSTE-1720B offers improved tolerance (±2% versus ±5%), enhanced impedance specification (85 Ohms), and is currently in active production with 64,795 units in stock. ROHS3 compliance and MSL 1 rating ensure compatibility with modern manufacturing processes.

UDZVFHTE-1720B (Rohm Semiconductor)

This part is designated for automotive and high-reliability applications. It carries AEC-Q101 qualification and is rated to 150°C junction temperature, providing enhanced thermal performance. The ±2.18% tolerance and ROHS3 compliance make this suitable for demanding environments. Current inventory of 3,375 units supports production requirements for specialized applications.

UDZVTE-1720B (Rohm Semiconductor)

This part serves as an alternative substitute with the widest operating temperature range (-55°C to 150°C) and highest inventory availability (52,400 units). It provides full electrical equivalence without automotive qualification, making it suitable for standard industrial and consumer applications. ROHS3 compliance and MSL 1 rating are maintained.

All three substitute parts are manufactured by Rohm Semiconductor, an established supplier with active product lines. Selection between these options depends on application-specific requirements: general-purpose (UDZSTE-1720B), automotive/high-reliability (UDZVFHTE-1720B), or extended temperature range (UDZVTE-1720B).

Frequently Asked Questions (FAQ)

Q: Can the UDZSTE-1720B, UDZVFHTE-1720B, or UDZVTE-1720B be used as direct replacements for the DZ2J20000L?

A: Yes. All three Rohm Semiconductor parts are direct substitutes. They share identical nominal voltage (20 V), maximum power rating (200 mW), mounting type (Surface Mount), and package format (SC-90, SOD-323F). Electrical parameters fall within acceptable operational ranges for the DZ2J20000L application.

Q: What is the difference between the three substitute parts?

A: The primary differences are: (1) UDZSTE-1720B offers ±2% tolerance and standard industrial rating; (2) UDZVFHTE-1720B includes AEC-Q101 automotive qualification and 150°C junction temperature rating; (3) UDZVTE-1720B provides the widest operating temperature range (-55°C to 150°C) without automotive qualification. All maintain 200 mW power rating and 20 V nominal voltage.

Q: Are there package compatibility concerns when substituting these parts?

A: No. All substitute parts use the SC-90 and SOD-323F package formats, identical to the DZ2J20000L. The supplier device packages differ (SMini2-F5-B for the original part versus UMD2 for Rohm parts), but both are equivalent surface mount packages with identical footprints and pin configurations.

Q: How do the impedance specifications compare?

A: The DZ2J20000L specifies 80 Ohms maximum impedance, while all three substitute parts specify 85 Ohms maximum. This 5-Ohm difference is within acceptable operational variance for Zener diode applications and does not affect functional compatibility.

Q: What is the significance of the tolerance differences?

A: The DZ2J20000L carries ±5% tolerance, while substitute parts offer ±2% (UDZSTE-1720B, UDZVTE-1720B) or ±2.18% (UDZVFHTE-1720B) tolerance. Tighter tolerance in substitute parts provides improved voltage regulation accuracy, which is beneficial for precision applications. This represents an enhancement rather than a limitation.

Q: Are all substitute parts RoHS compliant?

A: Yes. The DZ2J20000L is RoHS Compliant, and all three substitute parts are ROHS3 Compliant, meeting current environmental and regulatory requirements.

Q: Which substitute part should be selected for automotive applications?

A: The UDZVFHTE-1720B is qualified for automotive use under AEC-Q101 and is rated to 150°C junction temperature, making it the appropriate choice for automotive and high-reliability applications.

Q: What inventory levels are available for each substitute part?

A: UDZSTE-1720B has 64,795 units in stock, UDZVTE-1720B has 52,400 units in stock, and UDZVFHTE-1720B has 3,375 units in stock. Inventory levels support production requirements across all three options.