Equivalent & Substitute Parts for SMBJ5380A/TR13 Zener Diode

Part Overview

The SMBJ5380A/TR13 by Microchip Technology is a surface-mount Zener diode with a nominal Zener voltage of 120 V and a maximum power rating of 5 W, provided in an SMBJ (DO-214AA) package. It has a tolerance of ±10% and is designed for use in voltage regulation and protection applications. The part is currently active, with an operational temperature range of -65°C to 150°C. Finding alternative models is essential for ensuring continued supply chain stability, addressing compliance requirements, and addressing design constraints when the SMBJ5380A/TR13 is unavailable or does not meet specific regulatory needs.

Key Parameters

Parameter	SMBJ5380A/TR13
Voltage - Zener (Nom) (Vz)	120 V
Tolerance	±10%
Power - Max	5 W
Impedance (Max) (Zzt)	170 Ohms
Current - Reverse Leakage @ Vr	500 nA @ 86.4 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 1 A
Operating Temperature	-65°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	DO-214AA, SMB
Product Status	Active
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute components are included strictly when they match the essential substitution criteria relevant for Zener diodes in this category. These criteria are:

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
Product Status
RoHS Status
Moisture Sensitivity Level (MSL)
REACH Status

Parameter Comparison

Parameter	SMBJ5380A/TR13 (Microchip Technology)	SZ1SMB5951BT3G (onsemi)
Voltage - Zener (Nom) (Vz)	120 V	120 V
Tolerance	±10%	±5%
Power - Max	5 W	3 W
Impedance (Max) (Zzt)	170 Ohms	380 Ohms
Current - Reverse Leakage @ Vr	500 nA @ 86.4 V	1 µA @ 91.2 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 1 A	900 mV @ 10 mA
Operating Temperature	-65°C ~ 150°C	-65°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	DO-214AA, SMB	DO-214AA, SMB
Product Status	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

SMBJ5380A/TR13 is active, but is RoHS non-compliant. SZ1SMB5951BT3G is RoHS3 compliant and AEC-Q101 qualified. Both are active, available in SMB (DO-214AA) surface-mount packages, and are not moisture sensitive (MSL 1). Selection can be based on RoHS compliance or regulatory requirements if mandated by the application.

Frequently Asked Questions (FAQ)

Q1: What parameters must match when selecting substitute Zener diodes?
A1: Key parameters include voltage - Zener (nominal), tolerance, power rating, impedance (max), current - reverse leakage, voltage - forward, operating temperature, and package or case.

Q2: Are package and mounting types important for substitution?
A2: Yes, both substitutes and main parts have the same package (DO-214AA, SMB) and surface-mount configuration, allowing for direct PCB compatibility.

Q3: How does RoHS compliance affect part selection?
A3: RoHS status is critical when compliance with hazardous substances legislation is required. SZ1SMB5951BT3G is ROHS3 compliant, while SMBJ5380A/TR13 is not.

Q4: Can different power ratings affect substitutability?
A4: The power rating should meet or exceed the original specification requirements; only the values explicitly provided are reviewed for equivalence.

Q5: What is the significance of moisture sensitivity level (MSL)?
A5: Both parts have MSL 1, indicating no special moisture precautions are required for assembly or storage.

Q6: Are the substitute parts active and available for immediate use?
A6: Both SMBJ5380A/TR13 and SZ1SMB5951BT3G are listed as active in the provided data.

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