LZ52C27WS Equivalent & Substitute Parts Reference

Part Overview

The LZ52C27WS, manufactured by Diodes Incorporated, is a surface-mount Zener diode designed for 27 V nominal voltage, ±2% tolerance, 500 mW maximum power dissipation, and an 80 Ohm maximum impedance, housed in a 1206 (3216 Metric) package. This model is now classified as obsolete, which necessitates the identification of strict substitutes to maintain product functionality, ensure sourcing continuity, and support compliance requirements for final assemblies.

Substiute Parts

LZ52C27WS

Diodes IncorporatedIn Stock: 931LZ52C27WS Datasheet

Current PartRFQ

BZT52C27S-7-F

Diodes IncorporatedIn Stock: 26375BZT52C27S-7-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is based strictly on matching the following key parameters:

• Voltage - Zener (Nom) (Vz)
• Tolerance
• Power - Max
• Impedance (Max) (Zzt)
• Current - Reverse Leakage @ Vr
• Voltage - Forward (Vf) (Max) @ If
• Operating Temperature
• Mounting Type
• Package / Case
• RoHS Status
• REACH Status
• ECCN
• HTSUS

Compatibility is determined only where these parameters meet the required criteria associated with the main part number for Zener diode substitution.

Parameter Comparison

Engineering Selection Recommendations

The LZ52C27WS is obsolete, making substitute selection necessary. Substitute part BZT52C27S-7-F matches RoHS3 compliance, REACH unaffected status, ECCN classification, and HTS code. Selection should consider the part status and provided regulatory compliance and certification fields.

Frequently Asked Questions (FAQ)

Q1: What primary parameters are considered for Zener diode substitution?
A1: Zener diode substitution is strictly based on Voltage - Zener (Nom), Tolerance, Power - Max, Impedance (Max), Current - Reverse Leakage, Voltage - Forward at specified current, Operating Temperature, Mounting Type, and Package / Case.

Q2: How does package type affect substitute selection?
A2: Substitute part selection requires evaluation of mounting type and package / case dimensions to ensure compatibility with the designed PCB footprint.

Q3: Does regulatory compliance affect substitute choice?
A3: Regulatory compliance parameters such as RoHS status and REACH status are crucial and must match to maintain assembly compliance.

Q4: What effect does part status have on selection?
A4: If the main part is obsolete, only active or available substitute models should be considered based on the specified parameters and compliance.

Q5: Are impedance and leakage current always matched exactly in substitutes?
A5: Only parameters explicitly provided are considered. Substitute selection is based only on listed values in the provided data.