SMBJ5341B-TP Zener Diode Equivalent & Substitute Parts

Part Overview

The SMBJ5341B-TP is a 6.2 V, 5 W surface mount zener diode manufactured by Micro Commercial Co in DO-214AA (SMB) package format. This component is classified as an active product with full RoHS3 compliance and unlimited moisture sensitivity rating. Zener diodes of this specification are used in voltage regulation, overvoltage protection, and reference voltage applications in electronic circuits. Substitute parts are identified when equivalent electrical characteristics, mechanical compatibility, and regulatory compliance are maintained across alternative manufacturers.

Substiute Parts

SMBJ5341B-TP

Micro Commercial CoIn Stock: 2695SMBJ5341B-TP Datasheet

Current PartRFQ

CZRB5341B-HF

Comchip TechnologyIn Stock: 38785CZRB5341B-HF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ5341B-TP are identified based on strict equivalence of the following critical parameters:

Zener voltage specification (6.2 V nominal with ±5% tolerance), maximum power dissipation rating (5 W), maximum impedance (1 Ohm), reverse leakage current (1 µA @ 3 V), operating temperature range (-55°C to 150°C), surface mount package format (DO-214AA/SMB), and regulatory compliance status (RoHS3 Compliant, REACH Unaffected).

The CZRB5341B-HF from Comchip Technology meets all these criteria and is classified as a parametric equivalent. Both parts share identical zener voltage, tolerance, power rating, impedance, reverse leakage specification, operating temperature range, package type, and compliance certifications. The forward voltage specification differs only in the test current condition (1 mA versus 200 mA), which does not affect substitution validity for standard zener diode applications.

Parameter Comparison

Engineering Selection Recommendations

The CZRB5341B-HF from Comchip Technology is a direct parametric equivalent to the SMBJ5341B-TP. Both components maintain identical electrical specifications across all critical parameters including zener voltage, power rating, impedance, leakage current, and operating temperature range. Both parts are RoHS3 compliant, REACH unaffected, and carry unlimited moisture sensitivity rating (MSL 1), confirming equivalent regulatory and environmental compliance status.

Selection between these two parts is determined by availability, lead time, supplier preference, and cost considerations. The CZRB5341B-HF currently maintains higher inventory availability (38,774 pieces) compared to the SMBJ5341B-TP (2,645 pieces), which may influence procurement decisions for high-volume applications.

Frequently Asked Questions (FAQ)

Q: Can the CZRB5341B-HF replace the SMBJ5341B-TP in existing circuit designs?

A: Yes. The CZRB5341B-HF is a parametric equivalent with identical zener voltage (6.2 V), power rating (5 W), impedance (1 Ohm), reverse leakage current (1 µA @ 3 V), operating temperature range (-55°C to 150°C), and package format (DO-214AA/SMB). No circuit modifications are required.

Q: Are there package compatibility concerns between these two parts?

A: No. Both the SMBJ5341B-TP and CZRB5341B-HF use the DO-214AA (SMB) surface mount package. PCB footprints, solder pad layouts, and mechanical mounting are identical.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both components are RoHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating. Regulatory and environmental compliance is equivalent.

Q: What is the difference in forward voltage specifications between these parts?

A: The SMBJ5341B-TP specifies forward voltage at 1 mA test current, while the CZRB5341B-HF specifies forward voltage at 200 mA test current. This difference reflects measurement methodology only and does not affect substitution validity for standard zener diode applications where forward voltage is not a primary design parameter.

Q: Which part should be selected for new designs?

A: Selection is based on supplier availability, lead time, and cost. Both parts are active products with equivalent specifications and compliance status. The CZRB5341B-HF currently maintains higher inventory levels, which may provide procurement advantages.