Equivalent & Substitute Parts for SMBJ4760A/TR13 Zener Diode

Part Overview

The SMBJ4760A/TR13 from Microchip Technology is an active Zener diode product specified for 68 V nominal breakdown voltage, 2 W maximum power dissipation, and ±5% tolerance. It is delivered in a surface-mount DO-214AA (SMB) package with tape & reel packaging. In engineering applications, it is sometimes necessary to identify alternative models due to differences in compliance (such as RoHS status), inventory availability, or specific project requirements related to power and voltage ratings. The following page provides reference information for evaluating direct substitutes in line with the provided product parameters.

Substiute Parts

SMBJ4760A/TR13

Microchip TechnologyIn Stock: 824SMBJ4760A/TR13 Datasheet

Current PartRFQ

1SMB5945B-13

Diodes IncorporatedIn Stock: 33311SMB5945B-13 Datasheet

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CZRB5374B-HF

Comchip TechnologyIn Stock: 3719CZRB5374B-HF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts are grouped strictly according to common electrical and mechanical parameters provided for the Zener diode category. Substitution criteria use exact values and tolerance for voltage, power rating, mounting type, package format, and compliance statuses. Only active products with matching or compatible characteristics for these key parameters are referenced.

Parameters evaluated for substitution:

• Voltage - Zener (Nom) (Vz)
• Tolerance
• Power - Max
• Impedance (Max) (Zzt)
• Reverse Leakage Current @ Vr
• Voltage - Forward (Vf) (Max) @ If
• Operating Temperature Range
• Mounting Type
• Package / Case
• Supplier Device Package
• RoHS Status
• Moisture Sensitivity Level (MSL)
• REACH Status
• Product Status

Parameter Comparison

Engineering Selection Recommendations

All referenced substitute Zener diodes are marked as active status and are RoHS/REACH compliant except for SMBJ4760A/TR13, which is RoHS non-compliant. Substitute parts 1SMB5945B-13 and CZRB5374B-HF offer higher power ratings and different impedance values, as explicitly listed. Both substitute components are available in the same DO-214AA (SMB) package and surface mount configuration, with equivalent or extended operating temperature ranges and MSL 1 (Unlimited). Compliance statuses are indicated for each model as provided.

Frequently Asked Questions (FAQ)

Q1: What are the critical parameters for Zener diode substitution?
Critical parameters are: nominal zener voltage (Vz), tolerance, maximum power dissipation, reverse leakage current at specified voltage, forward voltage drop at test current, impedance, mounting type, package, environmental compliance (RoHS/REACH), product status, and moisture sensitivity level.

Q2: Does package type affect direct substitution?
All models listed use the DO-214AA (SMB) surface-mount package. Package equivalence supports direct substitution provided other electrical and environmental parameters are met.

Q3: How do compliance statuses factor into selection?
RoHS and REACH statuses differ; substitute parts such as 1SMB5945B-13 and CZRB5374B-HF are ROHS3 compliant and REACH unaffected, while SMBJ4760A/TR13 is RoHS non-compliant but REACH unaffected.

Q4: Is tolerance a key factor between these zener diodes?
All referenced parts use ±5% tolerance. This supports compatibility for applications requiring similar voltage accuracy.

Q5: Can parts with higher power ratings be substituted?
Substitution is referenced strictly with regard to provided power ratings. 1SMB5945B-13 (3 W) and CZRB5374B-HF (5 W) support higher power dissipation; ensure that system design accommodates these ratings per the electrical requirements given.