SMBJ4748A/TR13 Zener Diode Equivalent & Substitute Parts Reference

Part Overview

The SMBJ4748A/TR13 is a 22 V, 2 W Zener Diode from Microchip Technology in a surface-mount SMBJ (DO-214AA) package. This Zener diode features ±5% tolerance, 23 Ohms maximum impedance, and performs in the -65°C to 150°C operating temperature range. It is RoHS non-compliant and REACH unaffected, supplied as tape & reel. Identifying equivalent and substitute Zener diodes is necessary for maintaining product continuity, addressing regulatory compliance requirements, and managing supply chain risks in cases of lifecycle or availability constraints.

Substiute Parts

SMBJ4748A/TR13

Microchip TechnologyIn Stock: 1037SMBJ4748A/TR13 Datasheet

Current PartRFQ

1SMB5933B-13

Diodes IncorporatedIn Stock: 93631SMB5933B-13 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Only Zener diodes that explicitly match the following allowed parameters are designated as substitutes: nominal Zener voltage (22 V), tolerance (±5%), operating temperature range (-65°C ~ 150°C), surface mount type, package/case (DO-214AA, SMB), and any additional electrical characteristics directly specified (impedance, reverse leakage, forward voltage). Substitute grouping excludes variations on unlisted or inferred specifications.

Parameter Comparison

Engineering Selection Recommendations

For engineering selection, consider product status and official compliance. The SMBJ4748A/TR13 and 1SMB5933B-13 are both listed as Active. The SMBJ4748A/TR13 is RoHS non-compliant while the 1SMB5933B-13 is ROHS3 Compliant. Both devices maintain unlimited MSL (1) and are REACH unaffected. RoHS compliance status and related certifications should be considered in design qualification and vendor acceptance to ensure alignment with project or regional requirements.

Frequently Asked Questions (FAQ)

Q1: What are the key parameters required for a Zener diode to be considered an equivalent substitute?
A1: Key parameters are nominal Zener voltage, tolerance, operating temperature range, mounting type, and package/case. Exact matches for these are required for substitution within this category.

Q2: Is package compatibility between SMBJ4748A/TR13 and its substitute 1SMB5933B-13 assured?
A2: Both diodes are specified with DO-214AA, SMB packages, supporting compatibility for automated surface-mount assembly processes.

Q3: How does RoHS compliance affect substitute selection?
A3: RoHS compliance is directly related to regulatory acceptance. The SMBJ4748A/TR13 is RoHS non-compliant, while the 1SMB5933B-13 is ROHS3 Compliant. Selection may be governed by application restrictions or environmental requirements.

Q4: Are there performance trade-offs between SMBJ4748A/TR13 and 1SMB5933B-13 based on the stated parameters?
A4: Selection should be based strictly on the electrical and mechanical parameters provided. Both parts meet the specified voltage, tolerance, and package requirements, with differences in power rating, impedance, and forward voltage as listed.

Q5: What is the significance of matching the operating temperature range for Zener diode substitutes?
A5: Matching operating temperature range ensures performance reliability across all specified environmental conditions. Both the SMBJ4748A/TR13 and 1SMB5933B-13 specify -65°C to 150°C.