SMBJ5350B-TP Zener Diode Equivalent & Substitute Parts

Part Overview

The SMBJ5350B-TP is a 13 V, 5 W Zener diode manufactured by Micro Commercial Co in the DO-214AA (SMB) surface mount package. 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 based on matching electrical characteristics and mechanical compatibility to ensure functional equivalence in circuit applications.

Substiute Parts

SMBJ5350B-TP

Micro Commercial CoIn Stock: 4381SMBJ5350B-TP Datasheet

Current PartRFQ

CZRB5350B-HF

Comchip TechnologyIn Stock: 13328CZRB5350B-HF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ5350B-TP are identified through parametric equivalence. The following electrical and mechanical parameters must match or remain within acceptable tolerances for functional substitution:

Critical Matching Parameters:

• Zener voltage (nominal): 13 V
• Tolerance: ±5%
• Maximum power dissipation: 5 W
• Maximum impedance: 2.5 Ohms
• Reverse leakage current: 1 µA @ 9.9 V
• Forward voltage: 1.2 V maximum
• Operating temperature range: -55°C to 150°C
• Package type: DO-214AA (SMB) surface mount
• RoHS3 compliance status
• Moisture sensitivity level: 1 (Unlimited)

The CZRB5350B-HF from Comchip Technology meets all critical electrical parameters and mechanical requirements for direct substitution. Both components share identical zener voltage, power rating, impedance specification, reverse leakage characteristics, and operating temperature range. Package compatibility and regulatory compliance are equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the SMBJ5350B-TP and CZRB5350B-HF are active products with full RoHS3 compliance and REACH unaffected status. Selection between these components is based on availability, packaging format, and supply chain requirements rather than electrical performance differences.

The SMBJ5350B-TP is supplied in Cut Tape (CT) and Digi-Reel® packaging format. The CZRB5350B-HF is supplied in Tape & Reel (TR) format. Both packaging formats are standard for surface mount component handling and placement in automated assembly processes.

From a regulatory and compliance perspective, both components meet identical standards for industrial and commercial applications. The forward voltage specification difference (1 mA versus 200 mA test current) does not affect functional equivalence, as both maintain the 1.2 V maximum specification at their respective test conditions.

Frequently Asked Questions (FAQ)

Q: Can CZRB5350B-HF replace SMBJ5350B-TP in existing designs?

A: Yes. Both components share identical zener voltage (13 V), power rating (5 W), impedance (2.5 Ohms), reverse leakage current (1 µA @ 9.9 V), and operating temperature range (-55°C to 150°C). The DO-214AA (SMB) package is mechanically identical, and both components are RoHS3 compliant with MSL 1 rating.

Q: What is the difference in packaging between these two parts?

A: The SMBJ5350B-TP is supplied in Cut Tape (CT) and Digi-Reel® format. The CZRB5350B-HF is supplied in Tape & Reel (TR) format. Both formats are compatible with standard surface mount assembly equipment. Selection depends on production volume and assembly line requirements.

Q: Are there any electrical performance differences between these substitutes?

A: No. Both components meet identical electrical specifications for zener voltage, power dissipation, impedance, and reverse leakage current. The forward voltage is specified at different test currents (1 mA versus 200 mA), but both maintain the 1.2 V maximum specification.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both SMBJ5350B-TP and CZRB5350B-HF are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS code 8541.10.0050. Both carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: Can these components be used interchangeably in PCB assembly?

A: Yes. Both components use the identical DO-214AA (SMB) surface mount package with the same footprint, pin configuration, and placement requirements. No PCB design modifications are required for substitution.

Q: What determines whether a zener diode can substitute for another?

A: Functional substitution requires matching zener voltage (nominal value and tolerance), maximum power dissipation, impedance specification, reverse leakage characteristics, forward voltage rating, operating temperature range, and package type. All these parameters are identical between SMBJ5350B-TP and CZRB5350B-HF.