Equivalent & Substitute Parts for SMBJ5352A/TR13

Part Overview

The SMBJ5352A/TR13 by Microchip Technology is classified under Diodes, Zener, with a nominal Zener voltage of 15 V, a maximum power dissipation of 5 W, and ±10% voltage tolerance. The device features a surface-mount SMBJ (DO-214AA) package. As a Zener diode, it is widely used for voltage regulation and protection applications. The current product is listed as Active; however, alternative models may be required for specific compliance, inventory availability, or to satisfy design constraints related to RoHS status or power ratings.

Key Parameters

Manufacturer Part Number	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	Supplier Device Package	RoHS Status	Product Status
SMBJ5352A/TR13	15 V	±10%	5 W	2.5 Ohms	1 µA @ 10.8 V	1.2 V @ 1 A	-65°C ~ 150°C	Surface Mount	DO-214AA, SMB	SMBJ (DO-214AA)	RoHS non-compliant	Active

Substitute Part Grouping Explanation

Substitute parts are selected based on strict alignment with key electrical and mechanical characteristics. The following parameters are used for substitution: nominal Zener voltage (Vz), package type (DO-214AA, SMB), mounting method (Surface Mount), voltage tolerance, maximum power dissipation, and current/voltage ratings. RoHS compliance and product status are additionally considered due to regulatory and supply-chain requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	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	Supplier Device Package	RoHS Status	Product Status
SMBJ5352A/TR13	Microchip Technology	15 V	±10%	5 W	2.5 Ohms	1 µA @ 10.8 V	1.2 V @ 1 A	-65°C ~ 150°C	Surface Mount	DO-214AA, SMB	SMBJ (DO-214AA)	RoHS non-compliant	Active
SZ1SMB5929BT3G	onsemi	15 V	±5%	3 W	9 Ohms	1 µA @ 11.4 V	1.5 V @ 200 mA	-65°C ~ 150°C	Surface Mount	DO-214AA, SMB	SMB	ROHS3 Compliant	Active

Engineering Selection Recommendations

Both SMBJ5352A/TR13 and SZ1SMB5929BT3G are listed as Active products and utilize identical package and mounting types. The SZ1SMB5929BT3G provides RoHS compliance and AEC-Q101 automotive qualification, whereas SMBJ5352A/TR13 is RoHS non-compliant. The onsemi part differs in maximum power dissipation and voltage tolerance; therefore, selection should align with system requirements related to compliance and certification.

Frequently Asked Questions (FAQ)

Q1: What are the critical criteria for selecting substitute Zener diodes in the DO-214AA SMB package?
A1: Critical criteria include nominal Zener voltage, voltage tolerance, maximum power dissipation, impedance, reverse leakage current at specified voltage, forward voltage at specified current, mounting method, package, and RoHS compliance status.

Q2: Is the SZ1SMB5929BT3G mechanically compatible with SMBJ5352A/TR13?
A2: Both diodes are provided in a DO-214AA, SMB surface-mount package, supporting mechanical compatibility.

Q3: How do electrical parameters affect direct substitution?
A3: Parameters such as Zener voltage, tolerance, maximum power rating, and impedance must align with application requirements. Only listed parameters are considered valid for substitution.

Q4: What role does RoHS status play in selecting a substitute part?
A4: RoHS compliance may be a mandatory requirement for certain designs or markets. The SZ1SMB5929BT3G is ROHS3 Compliant, while SMBJ5352A/TR13 is not RoHS compliant.

Q5: Are AEC-Q101 or other qualifications relevant to substitution?
A5: Qualifications such as AEC-Q101 must be considered if specified by application requirements, as indicated in the listed part attributes for the substitute.

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