BZX84C33TS-7-F Equivalent & Substitute Parts

Part Overview

The BZX84C33TS-7-F is a Zener diode array manufactured by Diodes Incorporated, featuring three independent 33 V Zener diodes in a 6-TSSOP (SOT-363) surface mount package. This component is rated for 200 mW maximum power dissipation with ±6% voltage tolerance and operates across the temperature range of -65°C to 150°C.

The BZX84C33TS-7-F is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this Zener diode array configuration.

Substiute Parts

BZX84C33TS-7-F

Diodes IncorporatedIn Stock: 743BZX84C33TS-7-F Datasheet

Current PartRFQ

MMBZ5257BTS-7-F

Diodes IncorporatedIn Stock: 1111MMBZ5257BTS-7-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BZX84C33TS-7-F is determined by the following critical parameters:

Primary Substitution Criteria:

• Zener voltage rating: 33 V nominal
• Configuration: 3 independent diodes
• Package type: SOT-363 (6-TSSOP)
• Maximum power rating: 200 mW
• Operating temperature range: -65°C to 150°C
• Surface mount technology compatibility

Secondary Compatibility Parameters:

• Voltage tolerance (±6% or tighter)
• Forward voltage characteristics
• Reverse leakage current specifications
• Impedance characteristics
• Regulatory compliance (RoHS3, REACH)

The MMBZ5257BTS-7-F meets all primary substitution criteria and provides equivalent or superior electrical performance across all specified parameters. This part is classified as active product status, ensuring ongoing availability and supply chain support.

Parameter Comparison

Engineering Selection Recommendations

The MMBZ5257BTS-7-F is the direct substitute for the obsolete BZX84C33TS-7-F. Selection of this substitute part is supported by the following engineering factors:

Product Status Advantage: The MMBZ5257BTS-7-F maintains active product status with Diodes Incorporated, ensuring continued manufacturing support, supply chain availability, and long-term component sourcing reliability.

Electrical Performance: The substitute part delivers equivalent or superior electrical characteristics across all critical parameters. The tighter voltage tolerance (±5% versus ±6%) and lower impedance (58 Ohms versus 80 Ohms) provide improved performance margins without introducing compatibility concerns.

Regulatory Compliance: Both parts maintain identical RoHS3 compliance and REACH unaffected status, ensuring regulatory requirements are satisfied in all applications.

Package and Thermal Compatibility: Identical SOT-363 package specifications, surface mount configuration, and operating temperature range (-65°C to 150°C) ensure direct mechanical and thermal compatibility with existing PCB designs and assembly processes.

Packaging Format: The MMBZ5257BTS-7-F is supplied in Tape & Reel (TR) format, supporting automated assembly operations and high-volume production environments.

Frequently Asked Questions (FAQ)

Q: Can the MMBZ5257BTS-7-F be used as a direct replacement for the BZX84C33TS-7-F?

A: Yes. The MMBZ5257BTS-7-F is a direct substitute. Both parts share identical Zener voltage (33 V), configuration (3 independent diodes), power rating (200 mW), package type (SOT-363), and operating temperature range (-65°C to 150°C). The substitute part provides equivalent or superior electrical performance.

Q: What are the key differences between these two parts?

A: The primary differences are product status and electrical refinements. The BZX84C33TS-7-F is obsolete, while the MMBZ5257BTS-7-F is active. The substitute offers tighter voltage tolerance (±5% versus ±6%) and lower impedance (58 Ohms versus 80 Ohms). These differences represent performance improvements with no compatibility impact.

Q: Are there any PCB layout or assembly changes required when switching to the MMBZ5257BTS-7-F?

A: No. Both parts use identical SOT-363 package specifications and surface mount configuration. Existing PCB layouts, footprints, and assembly processes require no modification.

Q: What is the impact of the tighter voltage tolerance on circuit performance?

A: The ±5% tolerance of the MMBZ5257BTS-7-F is tighter than the ±6% tolerance of the BZX84C33TS-7-F. This provides improved voltage regulation accuracy and reduced variation across production batches, resulting in more consistent circuit performance.

Q: Does the lower impedance of the substitute part affect circuit operation?

A: The lower impedance (58 Ohms versus 80 Ohms) of the MMBZ5257BTS-7-F represents an improvement. Lower impedance provides better transient response and improved voltage regulation characteristics, with no negative impact on circuit compatibility.

Q: Are both parts available in the same packaging formats?

A: The BZX84C33TS-7-F packaging format is not specified in the available data. The MMBZ5257BTS-7-F is supplied in Tape & Reel (TR) format, which is standard for automated assembly operations.

Q: What is the moisture sensitivity level for both parts?

A: Both parts have Moisture Sensitivity Level (MSL) 1, which indicates unlimited shelf life and no special moisture control requirements during storage or handling.

Q: Are both parts RoHS compliant?

A: Yes. Both the BZX84C33TS-7-F and MMBZ5257BTS-7-F are ROHS3 compliant and REACH unaffected, meeting all current regulatory requirements for electronic components.