Equivalent & Substitute Parts for SMBJ5359A/TR13 Zener Diode

Part Overview

The SMBJ5359A/TR13 is a Zener Diode with a nominal Zener voltage of 24 V and maximum power dissipation of 5 W, provided in the DO-214AA (SMBJ) surface-mount package. Design engineers may require alternative models for reasons including regulatory compliance (RoHS, automotive grade), specific parametric requirements, availability, or qualification standards.

Key Parameters

Manufacturer Part Number	Manufacturer	Category	Packaging	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	Moisture Sensitivity Level (MSL)	REACH Status	ECCN	HTSUS	Product Status
SMBJ5359A/TR13	Microchip Technology	Diodes, Zener	Tape & Reel (TR)	24 V	±10%	5 W	3.5 Ohms	500 nA @ 17.3 V	1.2 V @ 1 A	-65°C ~ 150°C	Surface Mount	DO-214AA, SMB	SMBJ (DO-214AA)	RoHS non-compliant	1 (Unlimited)	REACH Unaffected	EAR99	8541.10.0050	Active
SZ1SMB5934BT3G	onsemi	Diodes, Zener	Tape & Reel (TR)	24 V	±5%	3 W	19 Ohms	1 µA @ 18.2 V	1.5 V @ 200 mA	-65°C ~ 150°C	Surface Mount	DO-214AA, SMB	SMB	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	EAR99	8541.10.0050	Active

Substitute Part Grouping Explanation

Substitute parts are identified strictly by matching the following key parameters: nominal Zener voltage, package/case compatibility, mounting type, and product status. In this group, compatible substitute alternatives must have a 24 V Zener voltage and DO-214AA (SMB) package to ensure electrical and mechanical fit.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Zener (Nom) (Vz)	Tolerance	Power - Max	Package / Case	Mounting Type	Operating Temperature	RoHS Status	Product Status
SMBJ5359A/TR13	Microchip Technology	24 V	±10%	5 W	DO-214AA, SMB	Surface Mount	-65°C ~ 150°C	RoHS non-compliant	Active
SZ1SMB5934BT3G	onsemi	24 V	±5%	3 W	DO-214AA, SMB	Surface Mount	-65°C ~ 150°C	ROHS3 Compliant	Active

Engineering Selection Recommendations

Selection should be based on product status (Active), compliance standards (RoHS, REACH), and package compatibility. If a project demands RoHS compliance or automotive qualification, SZ1SMB5934BT3G should be considered due to its ROHS3 and AEC-Q101 status. If maximum power dissipation is a critical design requirement, evaluate the power rating in relation to system needs.

Frequently Asked Questions (FAQ)

Q1: What are the most critical parameters for substituting SMBJ5359A/TR13 with SZ1SMB5934BT3G?
A1: The nominal Zener voltage (24 V), package/case (DO-214AA, SMB), mounting type (Surface Mount), and operating temperature range are the key parameters for direct substitution.

Q2: Can SZ1SMB5934BT3G be used as a direct mechanical replacement for SMBJ5359A/TR13?
A2: Both parts use the DO-214AA, SMB surface-mount package, allowing direct replacement in layouts designed for this footprint.

Q3: Is there a difference in compliance standards between the two parts?
A3: SMBJ5359A/TR13 is RoHS non-compliant; SZ1SMB5934BT3G is ROHS3 compliant and AEC-Q101 qualified for automotive applications.

Q4: Are there any differences in power dissipation or tolerance?
A4: SMBJ5359A/TR13 has a 5 W maximum power rating with ±10% tolerance, while SZ1SMB5934BT3G has a 3 W rating and ±5% tolerance.

Q5: What inventory levels are available for both parts?
A5: SMBJ5359A/TR13 has 1057 pieces in stock; SZ1SMB5934BT3G has 2658 pieces in stock as provided in the input.

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