MMBZ12VALT116 Equivalent & Substitute Parts

Part Overview

The MMBZ12VALT116 is a transient voltage suppressor (TVS) diode manufactured by Rohm Semiconductor, designed for general-purpose overvoltage protection in surface-mount applications. This dual-channel Zener diode operates with an 8.5V reverse standoff voltage and provides 17V maximum clamping voltage at peak pulse current. The component is currently in active production status with 4,300 units available in new original inventory. Finding equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate different packaging or procurement requirements.

Substiute Parts

MMBZ12VALT116

Rohm SemiconductorIn Stock: 4383MMBZ12VALT116 Datasheet

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MMBZ12VALYT116

Rohm SemiconductorIn Stock: 3768MMBZ12VALYT116 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MMBZ12VALT116 is determined by strict equivalence across the following critical electrical and mechanical parameters:

• Voltage Rating: Reverse standoff voltage of 8.5V (Max), breakdown voltage minimum of 11.4V, and clamping voltage maximum of 17V at peak pulse current
• Current Handling: Peak pulse current of 2.35A at 10/1000µs pulse width and peak pulse power of 40W
• Channel Configuration: Dual-channel (2) unidirectional Zener diode topology
• Package Compatibility: Surface-mount TO-236-3 / SC-59 / SOT-23-3 package footprint
• Compliance: ROHS3 compliance and active product status

Substitute parts must maintain identical electrical performance across all voltage and current parameters while preserving the same physical package and mounting characteristics. Packaging format (bulk versus tape & reel) does not affect electrical equivalence but may impact procurement and assembly workflows.

Parameter Comparison

Engineering Selection Recommendations

Both the MMBZ12VALT116 and MMBZ12VALYT116 are electrically and mechanically equivalent TVS diodes from Rohm Semiconductor. Selection between these parts should be based on procurement and assembly requirements rather than electrical performance:

• MMBZ12VALT116: Suitable for applications requiring bulk component procurement or manual assembly workflows
• MMBZ12VALYT116: Suitable for high-volume automated assembly processes utilizing tape & reel packaging

Both parts maintain active product status and full ROHS3 compliance, ensuring long-term availability and regulatory conformance. The choice between these substitutes does not impact circuit performance, thermal characteristics, or reliability when applied within the specified electrical parameters.

Frequently Asked Questions (FAQ)

Q: Can MMBZ12VALYT116 be used as a direct replacement for MMBZ12VALT116?

A: Yes. Both parts are electrically identical with matching voltage ratings (8.5V standoff, 11.4V breakdown, 17V clamping), current handling (2.35A peak pulse), and package footprint (SOT-23-3). The only difference is packaging format: bulk versus tape & reel.

Q: What determines whether a part can substitute for the MMBZ12VALT116?

A: Substitution requires matching all critical parameters: reverse standoff voltage (8.5V Max), breakdown voltage (11.4V Min), clamping voltage (17V Max @ Ipp), peak pulse current (2.35A), peak pulse power (40W), dual-channel configuration, SOT-23-3 package, and surface-mount mounting type.

Q: Does packaging format affect circuit performance?

A: No. Tape & reel (MMBZ12VALYT116) and bulk (MMBZ12VALT116) packaging formats contain identical components. Packaging affects only procurement, storage, and assembly handling, not electrical or thermal performance.

Q: Are both parts suitable for new designs?

A: Yes. Both MMBZ12VALT116 and MMBZ12VALYT116 maintain active product status from Rohm Semiconductor and are appropriate for new design implementations.

Q: What compliance certifications apply to these parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8541.10.0080. Moisture sensitivity level is 1 (Unlimited).