MMBZ5V6ALT1 Equivalent & Substitute Parts

Part Overview

The MMBZ5V6ALT1 is a Transient Voltage Suppressor (TVS) Zener diode in SOT-23 packaging, rated for 24W peak pulse power with dual channels. This component is classified as Obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. Substitute parts must maintain electrical performance across voltage clamping, peak pulse current, and thermal characteristics while ensuring compatibility with existing circuit layouts.

Substiute Parts

MMBZ5V6ALT1

onsemiIn Stock: 18256MMBZ5V6ALT1 Datasheet

Current PartRFQ

MMBZ5V6ALT1G

UMWIn Stock: 605188MMBZ5V6ALT1G Datasheet

DirectRFQ

MMBZ5V6AL,215

Nexperia USA Inc.In Stock: 19172MMBZ5V6AL,215 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MMBZ5V6ALT1 is determined by strict equivalence across the following electrical and mechanical parameters:

Voltage characteristics: Reverse standoff voltage (3V Max), breakdown voltage minimum (5.32V–5.6V range), and clamping voltage at peak pulse current (8V maximum).

Current and power ratings: Peak pulse current of 3A at 10/1000µs pulse width and peak pulse power of 24W.

Package compatibility: Surface mount SOT-23-3 / TO-236-3 / SC-59 footprint.

Thermal performance: Operating temperature range of -55°C to 150°C.

Channel configuration: Dual unidirectional (2-channel) Zener diode topology.

Parts meeting all these criteria are classified as direct equivalents. Parts with identical electrical specifications but different compliance certifications (RoHS3 vs. non-compliant) are functionally interchangeable for applications where regulatory requirements permit.

Parameter Comparison

Engineering Selection Recommendations

Both MMBZ5V6ALT1G (UMW) and MMBZ5V6AL,215 (Nexperia) are functionally equivalent to the obsolete MMBZ5V6ALT1 across all critical electrical parameters. Selection between these active alternatives should be based on the following factors:

MMBZ5V6ALT1G (UMW) is an active product with ROHS3 compliance and high inventory availability (605,100 pcs). This part is suitable for new designs requiring RoHS3 certification and offers extended supply continuity.

MMBZ5V6AL,215 (Nexperia) is an active product with ROHS3 compliance, AEC-Q101 automotive qualification, and documented capacitance specification (210pF @ 1MHz). This part is recommended for automotive applications or designs requiring automotive-grade component certification.

Both substitutes maintain identical electrical performance, package footprint, and thermal operating range. The choice between them depends on supply chain preference, automotive qualification requirements, and specific application certifications.

Frequently Asked Questions (FAQ)

Q: Can MMBZ5V6ALT1G and MMBZ5V6AL,215 be used interchangeably with MMBZ5V6ALT1?

A: Yes. Both parts meet all electrical specifications: 3V reverse standoff, 5.32V–5.6V breakdown voltage, 8V clamping voltage, 3A peak pulse current, and 24W peak pulse power. Package footprint (SOT-23-3) and operating temperature range (-55°C to 150°C) are identical. Direct substitution is electrically valid.

Q: What is the difference between the RoHS compliance status of these parts?

A: MMBZ5V6ALT1 is RoHS non-compliant. MMBZ5V6ALT1G and MMBZ5V6AL,215 are both ROHS3 compliant. For applications subject to RoHS regulations, the compliant alternatives must be used. For legacy or non-regulated applications, the original part may remain acceptable if inventory exists.

Q: Does the Nexperia part include automotive qualification?

A: Yes. MMBZ5V6AL,215 carries AEC-Q101 automotive qualification. MMBZ5V6ALT1G does not list automotive qualification. For automotive applications, the Nexperia part is the preferred substitute.

Q: Are there packaging differences between these parts?

A: MMBZ5V6ALT1G is supplied in Cut Tape (CT) and Digi-Reel packaging. MMBZ5V6AL,215 is supplied in Tape & Reel (TR) packaging. Both use identical SOT-23-3 surface mount footprint. Packaging format does not affect electrical compatibility or PCB assembly.

Q: What is the capacitance specification for these TVS diodes?

A: MMBZ5V6AL,215 specifies 210pF @ 1MHz. MMBZ5V6ALT1 and MMBZ5V6ALT1G do not provide documented capacitance values. For high-frequency applications where capacitance is critical, verify the Nexperia part meets circuit requirements.

Q: Are all three parts suitable for general-purpose transient voltage suppression?

A: Yes. All three parts are rated for general-purpose TVS applications with no power line protection designation. They are suitable for protecting sensitive circuits from transient overvoltage events within the specified voltage and current ratings.