MMBZ33VALT3 Equivalent & Substitute Parts

Part Overview

The MMBZ33VALT3 is a transient voltage suppressor (TVS) diode manufactured by onsemi, designed for general-purpose voltage clamping applications. This unidirectional zener diode operates with a 26V reverse standoff voltage and provides 46V maximum clamping voltage at peak pulse current of 870mA. The component is housed in a surface-mount SOT-23-3 (TO-236) package and rated for -55°C to 150°C junction temperature operation.

The MMBZ33VALT3 carries an obsolete product status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

MMBZ33VALT3

onsemiIn Stock: 1045MMBZ33VALT3 Datasheet

Current PartRFQ

MMBZ33VAL,215

Nexperia USA Inc.In Stock: 33467MMBZ33VAL,215 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MMBZ33VALT3 is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 26V (Typ)
• Voltage - Breakdown (Min): 31.35V
• Voltage - Clamping (Max) @ Ipp: 46V
• Current - Peak Pulse (10/1000µs): 870mA
• Power - Peak Pulse: 40W
• Package / Case: TO-236-3, SC-59, SOT-23-3
• Unidirectional Channels: 2
• Operating Temperature Range: -55°C ~ 150°C

The MMBZ33VAL,215 manufactured by Nexperia USA Inc. meets all specified electrical and mechanical parameters. Both components share the same base product number (MMBZ33) and are functionally equivalent for transient voltage suppression applications requiring these exact performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The MMBZ33VAL,215 is the direct functional equivalent for the obsolete MMBZ33VALT3. Selection of the Nexperia substitute provides the following advantages:

• Active product status ensures ongoing availability and supply chain support
• ROHS3 compliance meets current environmental and regulatory requirements
• AEC-Q101 automotive qualification provides additional reliability assurance
• Identical electrical performance across all critical voltage and current parameters
• Compatible package and mounting specifications enable direct board-level substitution

The substitute part maintains full electrical equivalence while offering improved compliance posture and supply continuity for new designs or production continuation.

Frequently Asked Questions (FAQ)

Q: Can MMBZ33VAL,215 be used as a direct replacement for MMBZ33VALT3?

A: Yes. Both components share identical electrical specifications for reverse standoff voltage (26V), breakdown voltage (31.35V minimum), clamping voltage (46V maximum), peak pulse current (870mA), and power dissipation (40W). Package and mounting specifications are equivalent.

Q: Are there differences in operating temperature ranges?

A: The MMBZ33VALT3 specifies junction temperature (TJ) of -55°C to 150°C, while the MMBZ33VAL,215 specifies ambient temperature (TA) of -55°C to 150°C. Both components operate within the same absolute temperature range suitable for general-purpose transient suppression applications.

Q: What is the significance of the RoHS compliance difference?

A: The MMBZ33VALT3 is RoHS non-compliant, while MMBZ33VAL,215 is ROHS3 compliant. For new designs or applications subject to environmental regulations, the Nexperia substitute meets current compliance requirements.

Q: Does the Nexperia part include AEC-Q101 qualification?

A: Yes. The MMBZ33VAL,215 carries AEC-Q101 automotive qualification, providing additional reliability assurance for applications requiring automotive-grade components.

Q: Are the packages physically identical?

A: Yes. Both components use TO-236-3 / SC-59 / SOT-23-3 surface-mount packages. The MMBZ33VAL,215 is supplied in Tape & Reel (TR) packaging format, which is standard for production environments.

Q: What is the capacitance specification for these parts?

A: The MMBZ33VALT3 does not specify capacitance. The MMBZ33VAL,215 specifies 45pF @ 1MHz. This parameter does not affect substitution compatibility for standard transient suppression applications.