SMBJ4731A/TR13 Equivalent & Substitute Parts Reference

Part Overview

The SMBJ4731A/TR13 is a Zener diode manufactured by Microchip Technology, classified under the Diodes, Zener product category. Packaged in Tape & Reel format as a surface mount device in the SMBJ (DO-214AA) package, it features a nominal Zener voltage of 4.3 V, a maximum power dissipation of 2 W, a ±5% tolerance, and a maximum operating temperature range from -65°C to 150°C. This part is currently active. Identifying alternate or equivalent Zener diodes is required for scenarios such as addressing inventory shortages, compliance requirements, or supply chain contingencies.

Substiute Parts

SMBJ4731A/TR13

Microchip TechnologyIn Stock: 1009SMBJ4731A/TR13 Datasheet

Current PartRFQ

SZ1SMB5916BT3G

onsemiIn Stock: 5196SZ1SMB5916BT3G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is based strictly on matching all critical electrical and mechanical parameters for the Zener diode category. The relevant parameters considered are: nominal Zener voltage (Vz), maximum power dissipation, package and mounting type, reverse leakage current, forward voltage, impedance, operating temperature range, and package compliance with RoHS and REACH. Only parts explicitly listed and matching these parameters are considered valid substitutes.

Parameter Comparison

Engineering Selection Recommendations

Selection between SMBJ4731A/TR13 and SZ1SMB5916BT3G must consider product status and compliance attributes. Both parts are active. SMBJ4731A/TR13 is RoHS non-compliant, while SZ1SMB5916BT3G is ROHS3 Compliant. Both parts are REACH unaffected and have the same MSL rating.

Frequently Asked Questions (FAQ)

Q1: What criteria are used to determine equivalency between SMBJ4731A/TR13 and a substitute part?
A1: Substitution is based on matching nominal Zener voltage, power rating, impedance, leakage current, forward voltage, operating temperature range, package type, mounting type, and regulatory compliance where specified.

Q2: Are the packages DO-214AA, SMBJ, and SMB equivalent for mounting compatibility?
A2: Both main and substitute parts specify DO-214AA (SMB), confirming mechanical compatibility for surface mount applications.

Q3: What should be considered if the original part is RoHS non-compliant but the substitute is ROHS3 Compliant?
A3: Selection must align with project or regulatory requirements regarding RoHS status.

Q4: Is there a difference in electrical performance parameters between SMBJ4731A/TR13 and SZ1SMB5916BT3G?
A4: Compare supplied values for power rating, impedance, leakage current, and forward voltage per the information provided.

Q5: Can inventory considerations impact the selection between these parts?
A5: The provided inventory levels are 981 pcs for SMBJ4731A/TR13 and 5100 pcs for SZ1SMB5916BT3G; selection can be based on current stock availability per supplied data.