Equivalent & Substitute Parts Reference for SMBJ5349A/TR13

Part Overview

Manufacturer part number SMBJ5349A/TR13 from Microchip Technology is a Zener diode in the Diodes, Zener category. It is specified at 12 V nominal Zener voltage, 5 W maximum power, and a surface-mount SMBJ (DO-214AA) package. The product is active but is RoHS non-compliant. Alternate models may be required for environmental compliance, different inventory requirements, or substitute sourcing in engineering design, procurement, or manufacturing.

Key Parameters

Parameter	SMBJ5349A/TR13
Manufacturer	Microchip Technology
Category	Diodes, Zener
Voltage - Zener (Nom) (Vz)	12 V
Tolerance	±10%
Power - Max	5 W
Impedance (Max) (Zzt)	2.5 Ohms
Current - Reverse Leakage @ Vr	2 µA @ 8.6 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
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
Product Status	Active

Substitute Part Grouping Explanation

Substitutes for Zener diode SMBJ5349A/TR13 are determined solely by matching the following allowed parameters in the Diodes, Zener category: Zener voltage (Vz), power rating, tolerance, maximum impedance, reverse leakage current, forward voltage, operating temperature range, mounting type, and package/case. Product compliance status (RoHS, REACH), MSL, and product status are also matched as required per sourcing and application policies.

Parameter Comparison

Parameter	SMBJ5349A/TR13 (Microchip Technology)	1SMB5927BT3G (onsemi)
Category	Diodes, Zener	Diodes, Zener
Voltage - Zener (Nom) (Vz)	12 V	12 V
Tolerance	±10%	±5%
Power - Max	5 W	3 W
Impedance (Max) (Zzt)	2.5 Ohms	6.5 Ohms
Current - Reverse Leakage @ Vr	2 µA @ 8.6 V	1 µA @ 9.1 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 1 A	1.5 V @ 200 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
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Active	Active

Engineering Selection Recommendations

SMBJ5349A/TR13 is active but lacks RoHS compliance. 1SMB5927BT3G is an active product, ROHS3 Compliant, with similar environmental certifications and product status. Selection between these should consider the required environmental compliance of the end product.

Frequently Asked Questions (FAQ)

Q1: What are the key parameters to consider for Zener diode substitution in this category?
A1: Key substitution parameters are Zener voltage (Vz), power rating, tolerance, impedance, reverse leakage current, forward voltage, operating temperature, mounting type, and package/case.

Q2: Are all substitute parts electrically identical?
A2: Substitute parts in this list match only on the provided parameters. Differences in power rating, tolerance, impedance, or leakage current may exist and should be compared directly from the above tables.

Q3: Is package compatibility ensured?
A3: All listed substitutes use the DO-214AA, SMB package and are surface-mount compatible.

Q4: Does RoHS compliance differ among substitutes?
A4: SMBJ5349A/TR13 is RoHS non-compliant. 1SMB5927BT3G is ROHS3 Compliant.

Q5: What is the impact of product status on selection?
A5: Both SMBJ5349A/TR13 and 1SMB5927BT3G are listed as Active, indicating ongoing manufacturer support per the provided product status.

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