MMBZ33VALVL Equivalent & Substitute Parts

Part Overview

The MMBZ33VALVL is a unidirectional Zener-type transient voltage suppressor (TVS) diode manufactured by Nexperia USA Inc. in Surface Mount TO-236AB packaging. This component is designed for transient voltage protection applications requiring a 26V reverse standoff voltage with 46V maximum clamping voltage and 870mA peak pulse current capability. The part is Active status and carries automotive-grade qualification (AEC-Q101), making it suitable for demanding protection circuits in automotive and industrial applications. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

MMBZ33VALVL

Nexperia USA Inc.In Stock: 8331MMBZ33VALVL Datasheet

Current PartRFQ

MMBZ33VALT1G

onsemiIn Stock: 305300MMBZ33VALT1G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MMBZ33VALVL is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 26V (Max)
• 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 (Surface Mount)
• Type: Zener, Unidirectional (2 channels)
• Operating Temperature Range: -55°C to 150°C minimum

The MMBZ33VALT1G (onsemi) meets all electrical and mechanical requirements for direct substitution. Both parts share the same base product number (MMBZ33), identical voltage and current ratings, equivalent thermal operating range, and compatible Surface Mount packaging. Packaging format differences (Tape & Reel vs. Cut Tape & Digi-Reel) do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the MMBZ33VALVL and MMBZ33VALT1G are Active status components with full RoHS3 and REACH compliance. The MMBZ33VALVL carries automotive-grade qualification (AEC-Q101), while the MMBZ33VALT1G is designated for general-purpose applications. Selection between these parts should be based on supply chain availability, packaging format requirements (Tape & Reel vs. Cut Tape & Digi-Reel), and application-specific qualification requirements. Both parts are electrically and mechanically interchangeable within the specified parameter envelope.

Frequently Asked Questions (FAQ)

Q: Can MMBZ33VALT1G replace MMBZ33VALVL in automotive applications?

A: Both parts are electrically identical across all critical parameters (voltage, current, power ratings, and temperature range) and share compatible Surface Mount TO-236-3 packaging. However, the MMBZ33VALVL carries explicit AEC-Q101 automotive qualification. Application of MMBZ33VALT1G in automotive circuits requires verification that the general-purpose qualification meets your specific automotive standards and requirements.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel packaging?

A: Tape & Reel and Cut Tape & Digi-Reel are packaging and delivery formats that do not affect the electrical or mechanical properties of the component itself. Tape & Reel is typically used for high-volume automated assembly, while Cut Tape & Digi-Reel offers flexibility for lower-volume or mixed-component orders. Both formats contain identical die and lead-frame specifications.

Q: Are the voltage ratings identical between these two parts?

A: Yes. Both parts share identical Reverse Standoff (26V Max), Breakdown (31.35V Min), and Clamping (46V Max @ Ipp) voltage specifications, as well as identical peak pulse current (870mA) and power (40W) ratings.

Q: What does the base product number MMBZ33 indicate?

A: The base product number MMBZ33 identifies the core device family and electrical specification set. Both the MMBZ33VALVL and MMBZ33VALT1G share this base designation, confirming they are variants of the same fundamental design with equivalent electrical performance.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes, from an electrical and mechanical standpoint. Both parts use identical Surface Mount TO-236-3 (SOT-23-3) packaging with the same pin configuration and footprint. PCB layout and assembly processes require no modification for substitution.