MMBZ15VALT3G Equivalent & Substitute Parts

Part Overview

The MMBZ15VALT3G is a transient voltage suppressor (TVS) diode manufactured by onsemi, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 12V reverse standoff voltage with 21V maximum clamping voltage and 1.9A peak pulse current capability in a compact SOT-23-3 package. The part is currently obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements.

Substiute Parts

MMBZ15VALT3G

onsemiIn Stock: 771MMBZ15VALT3G Datasheet

Current PartRFQ

MMBZ15VALT1G

onsemiIn Stock: 71144MMBZ15VALT1G Datasheet

DirectRFQ

SZMMBZ15VALT1G

onsemiIn Stock: 7901SZMMBZ15VALT1G Datasheet

DirectRFQ

SZMMBZ15VALT3G

onsemiIn Stock: 10096SZMMBZ15VALT3G Datasheet

DirectRFQ

MMBZ15VAL,215

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

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MMBZ15VALT3G is determined by electrical and mechanical parameter equivalence across the following criteria:

Electrical Parameters (Critical for Substitution):

• Voltage - Reverse Standoff: 12V
• Voltage - Breakdown (Min): 14.25V
• Voltage - Clamping (Max) @ Ipp: 21V
• Current - Peak Pulse (10/1000µs): 1.9A
• Power - Peak Pulse: 40W
• Operating Temperature Range: -55°C ~ 150°C
• Type: Zener
• Unidirectional Channels: 2

Mechanical Parameters (Critical for Substitution):

• Package / Case: SOT-23-3 (TO-236)
• Mounting Type: Surface Mount

All substitute parts listed maintain identical electrical specifications and package compatibility with the original MMBZ15VALT3G. Variations in packaging format (Cut Tape, Tape & Reel) and manufacturer (onsemi, Nexperia USA Inc.) do not affect electrical or mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

For Active Production: Select MMBZ15VALT1G, SZMMBZ15VALT1G, SZMMBZ15VALT3G, or MMBZ15VAL,215. All four parts are in active production status and provide direct electrical and mechanical equivalence to the obsolete MMBZ15VALT3G.

For Automotive Applications: SZMMBZ15VALT1G, SZMMBZ15VALT3G, and MMBZ15VAL,215 carry AEC-Q101 automotive qualification. Select these parts for designs requiring automotive-grade component certification.

For Standard Industrial Applications: MMBZ15VALT1G is suitable for non-automotive applications requiring onsemi sourcing with active product status and ROHS3 compliance.

Packaging Considerations:

• MMBZ15VALT1G: Cut Tape (CT) & Digi-Reel packaging
• SZMMBZ15VALT1G and SZMMBZ15VALT3G: Tape & Reel (TR) packaging
• MMBZ15VAL,215: Tape & Reel (TR) packaging

All substitute parts maintain identical SOT-23-3 package geometry and surface-mount compatibility.

Frequently Asked Questions (FAQ)

Q: Can MMBZ15VALT1G directly replace MMBZ15VALT3G? A: Yes. Both parts share identical electrical parameters (12V standoff, 21V clamping, 1.9A peak pulse) and SOT-23-3 package specifications. MMBZ15VALT1G is the active production equivalent.

Q: What is the difference between onsemi and Nexperia versions? A: Electrical and mechanical specifications are identical. The primary differences are manufacturer source and packaging format. Nexperia's MMBZ15VAL,215 includes automotive AEC-Q101 qualification.

Q: Are the automotive-qualified parts (SZMMBZ15VALT1G, SZMMBZ15VALT3G, MMBZ15VAL,215) required for all applications? A: Automotive qualification is required only for designs subject to automotive standards. Standard industrial applications can use any of the listed substitutes.

Q: Does packaging format (Cut Tape vs. Tape & Reel) affect electrical performance? A: No. Packaging format affects only supply chain logistics and handling. Electrical and mechanical performance remain identical across all packaging options.

Q: Are all substitute parts ROHS3 compliant? A: Yes. MMBZ15VALT1G, SZMMBZ15VALT1G, SZMMBZ15VALT3G, and MMBZ15VAL,215 are all ROHS3 compliant.

Q: What is the Moisture Sensitivity Level (MSL) for these parts? A: All parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.