SMBJ5358A/TR13 Equivalent & Substitute Zener Diodes Reference

Part Overview

The SMBJ5358A/TR13 from Microchip Technology is a 22 V, 5 W Zener diode in a surface-mount DO-214AA (SMBJ) package, suitable for voltage regulation and protection applications. This device is actively manufactured, but alternative models may be needed due to supply requirements, RoHS compliance considerations, or specific qualification standards. Selecting suitable equivalents requires strict adherence to electrical and mechanical compatibility defined by explicit component parameters.

Key Parameters

Parameter	Value
Manufacturer	Microchip Technology
Part Number	SMBJ5358A/TR13
Category	Diodes, Zener
Package / Case	DO-214AA, SMB
Mounting Type	Surface Mount
Voltage - Zener (Nom) (Vz)	22 V
Tolerance	±10%
Power - Max	5 W
Impedance (Max) (Zzt)	3.5 Ohms
Current - Reverse Leakage @ Vr	500 nA @ 15.8 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 1 A
Operating Temperature	-65°C ~ 150°C
RoHS Status	RoHS non-compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the SMBJ5358A/TR13 Zener diode are identified strictly through matching or closely compatible values for the following parameters:

Zener voltage (Nominal Vz)
Tolerance
Power rating (Wattage)
Impedance
Reverse leakage current at specified test voltage
Forward voltage at specified test current
Operating temperature range
Package / case type and mounting method

Only parts matching the above parameters are considered suitable alternatives in the Diodes, Zener category.

Parameter Comparison

Parameter	SMBJ5358A/TR13 (Microchip Technology)	1SMB5933BT3G (onsemi)	SZ1SMB5933BT3G-VF01 (onsemi)
Category	Diodes, Zener	Diodes, Zener	Diodes, Zener
Voltage - Zener (Nom) (Vz)	22 V	22 V	22 V
Tolerance	±10%	±5%	±5%
Power - Max	5 W	3 W	3 W
Impedance (Max) (Zzt)	3.5 Ohms	17.5 Ohms	17.5 Ohms
Current - Reverse Leakage @ Vr	500 nA @ 15.8 V	1 µA @ 16.7 V	1 µA @ 16.7 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 1 A	1.5 V @ 200 mA	1.5 V @ 200 mA
Operating Temperature	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C (TJ)
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Product Status	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

SMBJ5358A/TR13 is RoHS non-compliant. Substitute parts 1SMB5933BT3G and SZ1SMB5933BT3G-VF01 are ROHS3 compliant and offer active inventory. SZ1SMB5933BT3G-VF01 is listed as automotive grade with AEC-Q101 qualification, while all compared components maintain an unlimited moisture sensitivity level (MSL 1) and are listed as REACH unaffected. Package and mounting are identical across options.

Frequently Asked Questions (FAQ)

Q1: What are the most critical parameters for selecting an equivalent Zener diode?
A1: Zener voltage, wattage (power rating), package, tolerance, and reverse leakage current are key substitution parameters.

Q2: Are the listed substitute Zener diodes mechanically compatible with the SMBJ5358A/TR13?
A2: All compared parts use the DO-214AA, SMB surface-mount package, ensuring mechanical compatibility.

Q3: How does RoHS compliance differ between these Zener diodes?
A3: SMBJ5358A/TR13 is RoHS non-compliant, while both substitute parts 1SMB5933BT3G and SZ1SMB5933BT3G-VF01 are ROHS3 compliant.

Q4: Can substitutes with different power ratings be used directly?
A4: Power rating must be matched to application requirements. The provided parameters show the substitutes have a lower maximum power rating (3 W versus 5 W).

Q5: What is the significance of the tolerance value in substitution?
A5: Tolerance affects the allowable variation in Zener voltage. Substitute parts show a tighter tolerance (±5%) compared to the original (±10%).

Q6: Are the substitutes suitable for automotive applications?
A6: SZ1SMB5933BT3G-VF01 is specified as automotive grade with AEC-Q101 qualification.

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