Equivalent & Substitute Parts for DZ2J27000L

Part Overview

The DZ2J27000L is a 27 V, 200 mW Zener diode manufactured by Panasonic Electronic Components in the SC-90/SOD-323F surface mount package. This component is designed for voltage regulation and protection applications requiring precise 27 V reference voltage with ±5% tolerance. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers to maintain design continuity and supply chain reliability.

Substiute Parts

DZ2J27000L

Panasonic Electronic ComponentsIn Stock: 9638DZ2J27000L Datasheet

Current PartRFQ

UDZSTE-1727B

Rohm SemiconductorIn Stock: 26358UDZSTE-1727B Datasheet

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UDZVFHTE-1727B

Rohm SemiconductorIn Stock: 6596UDZVFHTE-1727B Datasheet

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UDZVTE-1727B

Rohm SemiconductorIn Stock: 50204UDZVTE-1727B Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the DZ2J27000L is determined by strict equivalence across the following critical parameters:

Mandatory Matching Criteria:

• Zener voltage: 27 V (exact match required)
• Power rating: 200 mW (minimum; higher ratings acceptable)
• Package type: SC-90/SOD-323F (physical and electrical compatibility)
• Mounting type: Surface Mount (assembly process compatibility)

Acceptable Variation Criteria:

• Voltage tolerance: Substitute tolerance of ±3% or ±2.48% is tighter than the original ±5% specification and remains functionally compatible
• Impedance: Substitute impedance up to 150 Ohms is acceptable; the original 120 Ohms specification is not a limiting constraint
• Reverse leakage current: Substitute values up to 100 nA @ 21 V are acceptable; lower leakage improves performance
• RoHS compliance: ROHS3 Compliant status meets or exceeds the original RoHS Compliant requirement
• Operating temperature range: Extended ranges (-55°C ~ 150°C) provide broader operational capability

All three substitute parts meet these criteria and are manufactured by Rohm Semiconductor with active product status.

Parameter Comparison

Engineering Selection Recommendations

UDZSTE-1727B (Rohm Semiconductor)

This substitute provides direct functional equivalence with improved voltage tolerance (±3% versus ±5%). The part is in active production status with substantial inventory availability (26,300 pcs). ROHS3 compliance exceeds the original RoHS requirement. The UMD2 package maintains SC-90/SOD-323F compatibility. This option is suitable for general-purpose applications where automotive qualification is not required.

UDZVFHTE-1727B (Rohm Semiconductor)

This automotive-grade substitute offers the tightest voltage tolerance (±2.48%) and includes AEC-Q101 qualification, indicating suitability for automotive and high-reliability applications. The maximum junction temperature specification of 150°C (TJ) provides explicit thermal rating. ROHS3 compliance and REACH Unaffected status confirm regulatory alignment. Inventory availability is lower (6,491 pcs) compared to other options. Selection of this part is appropriate for applications requiring automotive-grade components or enhanced reliability specifications.

UDZVTE-1727B (Rohm Semiconductor)

This substitute provides the highest inventory availability (50,100 pcs) and maintains full functional compatibility with the original part. Operating temperature range of -55°C ~ 150°C matches or exceeds typical industrial specifications. ROHS3 compliance and REACH Unaffected status confirm regulatory compliance. Tolerance specification is not provided in the datasheet; verification with the manufacturer is necessary if tolerance specification is a critical design parameter. This option is optimal for high-volume applications where supply continuity and cost efficiency are primary considerations.

Frequently Asked Questions (FAQ)

Q: Can the Rohm Semiconductor substitutes be used as direct replacements for the DZ2J27000L in existing designs?

A: Yes. All three Rohm substitutes maintain identical zener voltage (27 V), power rating (200 mW), and package type (SC-90/SOD-323F). The electrical and mechanical compatibility is confirmed across all critical parameters. No circuit redesign is required.

Q: How do the voltage tolerances of the substitute parts compare to the original?

A: The original DZ2J27000L specifies ±5% tolerance. UDZSTE-1727B provides ±3% tolerance, and UDZVFHTE-1727B provides ±2.48% tolerance. Both represent tighter tolerances, which improve voltage regulation accuracy. UDZVTE-1727B does not specify tolerance in the provided data. Tighter tolerances are functionally compatible with designs specified for ±5%.

Q: What is the difference between the three Rohm substitutes?

A: UDZSTE-1727B is a standard industrial-grade part. UDZVFHTE-1727B is automotive-grade with AEC-Q101 qualification and explicit junction temperature rating. UDZVTE-1727B is a standard industrial-grade part with the highest inventory availability. Selection depends on application requirements: automotive applications require UDZVFHTE-1727B; general industrial applications can use UDZSTE-1727B or UDZVTE-1727B.

Q: Are there any differences in the package or mounting between the original and substitute parts?

A: No. All parts use the SC-90/SOD-323F package in surface mount configuration. Physical footprint and electrical connectivity are identical. No PCB layout modifications are required.

Q: What is the significance of the impedance difference between the original (120 Ohms) and substitutes (150 Ohms)?

A: Impedance affects the dynamic response of the zener diode under transient conditions. The substitute impedance of 150 Ohms is slightly higher than the original 120 Ohms. This difference is within acceptable limits for most voltage regulation applications and does not prevent functional substitution. Circuit simulation or testing is appropriate if transient response is a critical design parameter.

Q: Do the substitute parts have better leakage characteristics than the original?

A: The original DZ2J27000L specifies 50 nA reverse leakage current @ 21 V. The Rohm substitutes specify 100 nA @ 21 V, which is higher. For applications where leakage current is critical, this difference should be evaluated against circuit requirements. In most voltage regulation applications, this difference is not functionally significant.

Q: Which substitute should be selected for new designs?

A: For automotive or high-reliability applications, select UDZVFHTE-1727B (AEC-Q101 qualified). For general industrial applications with high-volume requirements, select UDZVTE-1727B (highest inventory). For applications requiring tighter voltage tolerance without automotive qualification, select UDZSTE-1727B.

Q: Are all substitute parts RoHS compliant?

A: Yes. All three Rohm substitutes are ROHS3 Compliant, which meets or exceeds the original RoHS Compliant status. UDZVFHTE-1727B and UDZVTE-1727B also carry REACH Unaffected status, confirming compliance with additional environmental regulations.