MMBZ15VALT1 Equivalent & Substitute Parts

Part Overview

The MMBZ15VALT1 is a transient voltage suppressor (TVS) zener diode in SOT-23 packaging, rated for 40W peak pulse power at 15V. This part is classified as obsolete, which necessitates identification of active equivalent alternatives for new designs and ongoing production requirements. The MMBZ15VALT1 remains available in inventory (933 pcs), but sourcing from active product lines ensures long-term supply chain stability and access to current manufacturing processes.

Substiute Parts

MMBZ15VALT1

onsemiIn Stock: 955MMBZ15VALT1 Datasheet

Current PartRFQ

MMBZ15VALT1G

onsemiIn Stock: 71144MMBZ15VALT1G Datasheet

DirectRFQ

MMBZ15VAL,215

Nexperia USA Inc.In Stock: 10389MMBZ15VAL,215 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MMBZ15VALT1 is determined by the following critical parameters:

• Package Type: SOT-23-3 (TO-236) mechanical compatibility
• Power Rating: 40W peak pulse power minimum
• Unidirectional Channels: 2 channels (dual configuration)
• Type: Zener TVS diode
• Mounting: Surface mount
• RoHS & Compliance: Active product status with current compliance certifications

Both identified substitutes meet these core requirements and are classified as active products with current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

MMBZ15VALT1G (onsemi) is the primary direct substitute. It maintains onsemi manufacturer continuity, is actively produced, and achieves ROHS3 compliance. This part is available in high volume (71,100 pcs) with Cut Tape and Digi-Reel packaging options.

MMBZ15VAL,215 (Nexperia) is a secondary equivalent from an alternative manufacturer. It meets all electrical and mechanical requirements, is actively produced, and includes AEC-Q101 automotive qualification. This part is available in Tape & Reel format (10,343 pcs) and includes capacitance specification (85pF @ 1MHz).

Both substitutes provide equivalent electrical performance at 40W peak pulse power with identical clamping voltage (21V max) and peak pulse current (1.9A). Selection between them depends on supply chain preference, packaging format requirements, and automotive qualification needs.

Frequently Asked Questions (FAQ)

Q: Can MMBZ15VALT1G directly replace MMBZ15VALT1 in existing designs?

A: Yes. Both parts share identical SOT-23-3 package geometry, 40W power rating, and dual-channel zener configuration. Pin-to-pin compatibility is confirmed.

Q: What is the difference between MMBZ15VALT1G and MMBZ15VAL,215?

A: Both are electrically equivalent with identical electrical specifications. The primary differences are manufacturer (onsemi vs. Nexperia), packaging format (Cut Tape/Digi-Reel vs. Tape & Reel), and automotive qualification (MMBZ15VAL,215 includes AEC-Q101). The Nexperia part also specifies capacitance at 1MHz (85pF).

Q: Why is the original MMBZ15VALT1 classified as obsolete?

A: Obsolete status indicates the part is no longer in active production. The active equivalents (MMBZ15VALT1G and MMBZ15VAL,215) provide continued access to this functionality with current manufacturing support and compliance certifications.

Q: Are there RoHS compliance differences between the substitutes?

A: Yes. The original MMBZ15VALT1 is RoHS non-compliant. Both active substitutes (MMBZ15VALT1G and MMBZ15VAL,215) are ROHS3 compliant, meeting current environmental regulations.

Q: Which substitute should I select for automotive applications?

A: MMBZ15VAL,215 includes AEC-Q101 automotive qualification. If automotive certification is required, this part is the specified choice. MMBZ15VALT1G does not list automotive qualification.

Q: Are packaging options different between the two substitutes?

A: Yes. MMBZ15VALT1G is available in Cut Tape (CT) and Digi-Reel formats. MMBZ15VAL,215 is supplied in Tape & Reel (TR) format. Verify packaging compatibility with your assembly process requirements.