DZ2W27000L Equivalent & Substitute Parts

Part Overview

The DZ2W27000L is a 27 V, 1 W Zener diode manufactured by Panasonic Electronic Components in the SOD-123F 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. Substitute parts must maintain compatibility with existing PCB layouts, thermal requirements, and electrical specifications within acceptable engineering tolerances.

Substiute Parts

DZ2W27000L

Panasonic Electronic ComponentsIn Stock: 4216DZ2W27000L Datasheet

Current PartRFQ

CRZ27(TE85L,Q,M)

Toshiba Semiconductor and StorageIn Stock: 2033CRZ27(TE85L,Q,M) Datasheet

SimilarRFQ

KDZVTFTR27B

Rohm SemiconductorIn Stock: 9001KDZVTFTR27B Datasheet

SimilarRFQ

KDZVTR27B

Rohm SemiconductorIn Stock: 63507KDZVTR27B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DZ2W27000L is determined by the following criteria:

Primary Electrical Compatibility:

• Zener voltage within acceptable tolerance band of 27 V nominal
• Power dissipation rating of 1 W or greater
• Impedance (Max) of 30 Ohms or less
• Reverse leakage current of 10 µA @ 19 V or lower
• Forward voltage characteristics compatible with 1.2 V @ 200 mA specification

Physical & Assembly Compatibility:

• Surface mount technology
• SOD-123F package footprint
• Moisture sensitivity level 1 (Unlimited)

Regulatory & Environmental Compliance:

• RoHS compliance (RoHS Compliant or ROHS3 Compliant acceptable)
• Operating temperature range supporting minimum -40°C to 85°C

Identified Substitute Parts:

The following parts meet substitution criteria with noted parameter variations:

1. CRZ27(TE85L,Q,M) – Toshiba Semiconductor: Meets voltage, impedance, leakage, and package requirements. Power rating of 700 mW is below 1 W specification; extended operating temperature to 150°C provides thermal margin.

2. KDZVTFTR27B – Rohm Semiconductor: Meets power, impedance, leakage, and package requirements. Zener voltage of 28.9 V represents 7.04% deviation from 27 V nominal; automotive-grade qualification (AEC-Q101) provides enhanced reliability.

3. KDZVTR27B – Rohm Semiconductor: Meets power, impedance, leakage, and package requirements. Zener voltage of 28.9 V represents deviation from 27 V nominal; highest inventory availability (63,400 pcs).

Parameter Comparison

Engineering Selection Recommendations

CRZ27(TE85L,Q,M) – Toshiba Semiconductor

This substitute is suitable for applications where power dissipation does not exceed 700 mW. The 27 V nominal voltage provides exact electrical equivalence. The extended operating temperature range to 150°C offers thermal margin beyond the original specification. ROHS3 compliance satisfies current environmental standards. This option is appropriate for cost-sensitive designs with moderate power requirements.

KDZVTFTR27B – Rohm Semiconductor

This substitute provides 1 W power rating matching the original specification. The 28.9 V nominal voltage represents a 7.04% deviation from the 27 V target. Automotive-grade qualification (AEC-Q101) indicates enhanced reliability and process control suitable for demanding applications. ROHS3 compliance and REACH unaffected status satisfy regulatory requirements. This option is appropriate for automotive or mission-critical applications requiring certified component traceability.

KDZVTR27B – Rohm Semiconductor

This substitute provides 1 W power rating matching the original specification. The 28.9 V nominal voltage represents deviation from the 27 V target. Highest inventory availability (63,400 pcs) ensures supply continuity. ROHS3 compliance and REACH unaffected status satisfy regulatory requirements. This option is appropriate for high-volume production requiring immediate availability and cost optimization.

Selection Criteria Summary:

• Exact voltage match required: Select CRZ27(TE85L,Q,M)
• Automotive or certified reliability required: Select KDZVTFTR27B
• Maximum availability and cost optimization: Select KDZVTR27B
• Power dissipation limited to 700 mW or less: Select CRZ27(TE85L,Q,M)

Frequently Asked Questions (FAQ)

Q: Can CRZ27(TE85L,Q,M) be used as a direct replacement for DZ2W27000L?

A: CRZ27(TE85L,Q,M) is electrically compatible for applications where maximum power dissipation does not exceed 700 mW. The 27 V nominal voltage matches exactly. The SOD-123F package provides identical PCB footprint compatibility. Applications requiring full 1 W dissipation capability must use KDZVTFTR27B or KDZVTR27B.

Q: What is the significance of the 28.9 V zener voltage in KDZVTFTR27B and KDZVTR27B?

A: The 28.9 V nominal voltage represents approximately 7% deviation from the 27 V specification. This deviation is within acceptable engineering tolerance for many voltage regulation applications. Circuit designers must verify that the higher regulation voltage does not exceed downstream component voltage ratings or circuit functional requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts carry ROHS3 compliance certification, which exceeds the RoHS Compliant status of the original DZ2W27000L. ROHS3 compliance satisfies current environmental and regulatory requirements for electronic components.

Q: Do the substitute parts require different PCB layout considerations?

A: No. All substitute parts use the SOD-123F surface mount package with identical footprint and pinout. Existing PCB designs require no layout modifications. Solder reflow profiles and assembly processes remain unchanged.

Q: What is the difference between KDZVTFTR27B and KDZVTR27B?

A: KDZVTFTR27B carries automotive-grade qualification (AEC-Q101) and specified tolerance of ±7.04%, indicating enhanced process control and reliability certification. KDZVTR27B provides equivalent electrical performance with higher inventory availability. Selection depends on application requirements for certified automotive-grade components versus general-purpose applications.

Q: Can these parts be used interchangeably in existing designs?

A: Interchangeability depends on circuit voltage tolerance and power dissipation requirements. CRZ27(TE85L,Q,M) is directly interchangeable for designs accepting 27 V ±10% tolerance and 700 mW maximum dissipation. KDZVTFTR27B and KDZVTR27B are interchangeable for designs accepting 28.9 V nominal voltage and 1 W dissipation. Circuit validation is required when zener voltage deviates from original specification.

Q: What is the moisture sensitivity level (MSL) for all parts?

A: All parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard storage and handling procedures apply without special desiccant or humidity control requirements.

Q: Are there any REACH or ECCN restrictions on these parts?

A: All parts carry ECCN EAR99 classification and HTSUS 8541.10.0050 tariff code. KDZVTFTR27B and KDZVTR27B carry REACH Unaffected status. No export or supply chain restrictions apply to standard commercial applications.