Equivalent & Substitute Parts for SMBJ5372A/TR13

Part Overview

SMBJ5372A/TR13 by Microchip Technology is a surface-mount Zener diode with a nominal Zener voltage of 62 V, maximum power dissipation of 5 W, supplied in a DO-214AA (SMBJ) package. This device remains active and is specialized for voltage regulation and transient suppression applications. Finding alternatives is necessary to ensure supply continuity, adapt to compliance requirements, or address sourcing challenges due to status changes, inventory constraints, environmental directives, or approved vendor lists.

Key Parameters

Parameter	SMBJ5372A/TR13
Voltage - Zener (Nom) (Vz)	62 V
Tolerance	±10%
Power - Max	5 W
Impedance (Max) (Zzt)	42 Ohms
Current - Reverse Leakage @ Vr	500 nA @ 44.6 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
RoHS Status	RoHS non-compliant
MSL	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8541.10.0050

Substitute Part Grouping Explanation

Substitution strictly relies on matching the following key parameters:

Voltage - Zener (Nom) (Vz): 62 V
Mounting Type: Surface Mount
Package / Case: DO-214AA, SMB
Category: Diodes, Zener
Operating Temperature: -65°C ~ 150°C
Product Status: Active

Other relevant parameters considered for equivalence include tolerance, maximum power dissipation, maximum impedance, reverse leakage current, and RoHS/REACH status.

Parameter Comparison

Parameter	SMBJ5372A/TR13 (Microchip Technology)	1SMB5944BT3G (onsemi)	SZ1SMB5944BT3G (onsemi)
Voltage - Zener (Nom) (Vz)	62 V	62 V	62 V
Tolerance	±10%	±5%	±5%
Power - Max	5 W	3 W	3 W
Impedance (Max) (Zzt)	42 Ohms	100 Ohms	100 Ohms
Current - Reverse Leakage @ Vr	500 nA @ 44.6 V	1 µA @ 47.1 V	1 µA @ 47.1 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
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99
HTSUS	8541.10.0050	8541.10.0050	8541.10.0050
Product Status	Active	Active	Active

Engineering Selection Recommendations

Choose substitute Zener diode part numbers that are categorized as "Active," have equivalent package/case formats (DO-214AA, SMB), matching mounting type (Surface Mount), and an equivalent Zener voltage rating (62 V). Compliance differences are indicated: SMBJ5372A/TR13 is RoHS non-compliant while substitute parts 1SMB5944BT3G and SZ1SMB5944BT3G are ROHS3 compliant and REACH unaffected. All showcase ECCN EAR99 and HTSUS 8541.10.0050, supporting regulatory documentation requirements. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all compared parts.

Frequently Asked Questions (FAQ)

Q1: What is the most critical parameter for selecting a substitute Zener diode in this group?
A1: The essential parameters are Zener voltage (62 V), mounting type (Surface Mount), and package (DO-214AA, SMB).

Q2: Will the differences in RoHS compliance affect product selection?
A2: If the application requires RoHS compliance, select substitute part numbers 1SMB5944BT3G or SZ1SMB5944BT3G, as they are ROHS3 compliant.

Q3: Are all substitute parts suitable for the same physical footprint?
A3: Yes, all parts use the DO-214AA (SMB) surface-mount package and are compatible with the same PCB footprint.

Q4: Do tolerances and power ratings differ among the substitutes?
A4: Tolerance on the main part is ±10%, with substitutes at ±5%. Power rating is 5 W for the main part, and 3 W for substitutes.

Q5: Is there any difference in supply chain code or customs classification?
A5: All listed parts have the same ECCN (EAR99) and HTSUS (8541.10.0050) codes.

Q6: What should be considered when replacing SMBJ5372A/TR13 in a compliant environment?
A6: Use substitute parts that are ROHS3 compliant, such as 1SMB5944BT3G or SZ1SMB5944BT3G. All parts have MSL 1 and are REACH unaffected.

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