MMBZ18VALT116 Equivalent & Substitute Parts

Part Overview

The MMBZ18VALT116 is a transient voltage suppressor (TVS) diode manufactured by Rohm Semiconductor, designed for general-purpose voltage clamping applications. This surface-mount component operates with a 14.5V reverse standoff voltage and provides 25V maximum clamping voltage at peak pulse current. The device is actively produced and widely stocked, with 6200 units available in inventory. Finding equivalent substitute parts is necessary to ensure supply chain flexibility, optimize procurement costs, and maintain design continuity across manufacturing batches.

Substiute Parts

MMBZ18VALT116

Rohm SemiconductorIn Stock: 6308MMBZ18VALT116 Datasheet

Current PartRFQ

MMBZ18VALYT116

Rohm SemiconductorIn Stock: 3514MMBZ18VALYT116 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MMBZ18VALT116 is determined by strict electrical and mechanical parameter matching. The critical parameters that define interchangeability are:

• Voltage - Reverse Standoff: 14.5V (Max)
• Voltage - Breakdown (Min): 17.1V
• Voltage - Clamping (Max) @ Ipp: 25V
• Current - Peak Pulse (10/1000µs): 1.6A
• Power - Peak Pulse: 40W
• Unidirectional Channels: 2
• Package / Case: TO-236-3, SC-59, SOT-23-3
• Mounting Type: Surface Mount

The MMBZ18VALYT116 qualifies as a direct substitute because it maintains identical electrical specifications across all critical voltage and current parameters, operates within the same SOT-23-3 package footprint, and shares the same base product number (MMBZ18). The primary difference is packaging format: the main part uses Cut Tape (CT) & Digi-Reel® while the substitute uses Tape & Reel (TR).

Parameter Comparison

Engineering Selection Recommendations

Both the MMBZ18VALT116 and MMBZ18VALYT116 are active products manufactured by Rohm Semiconductor with full ROHS3 compliance and unlimited moisture sensitivity rating. Selection between these parts should be based on procurement and assembly requirements:

• Choose MMBZ18VALT116 when cut tape packaging is required for manual assembly or small-batch production runs.
• Choose MMBZ18VALYT116 when tape and reel packaging is required for automated pick-and-place assembly operations.

Both parts carry identical electrical performance specifications and are suitable for general-purpose transient voltage suppression applications. Compliance certifications (ROHS3, REACH Unaffected, EAR99) are equivalent across both variants.

Frequently Asked Questions (FAQ)

Q: Can MMBZ18VALYT116 be used as a direct replacement for MMBZ18VALT116 in existing designs?

A: Yes. Both parts share identical electrical specifications including reverse standoff voltage (14.5V), breakdown voltage (17.1V), clamping voltage (25V), peak pulse current (1.6A), and power dissipation (40W). The SOT-23-3 package footprint is identical, making them electrically and mechanically interchangeable.

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

A: Cut Tape (CT) & Digi-Reel® packaging is suitable for manual component handling and small-quantity assembly. Tape & Reel (TR) packaging is designed for automated assembly equipment and high-volume production. The component itself is identical; only the delivery format differs.

Q: Are there any compliance or certification differences between these parts?

A: No. Both MMBZ18VALT116 and MMBZ18VALYT116 carry identical compliance certifications: ROHS3 Compliant, REACH Unaffected, and EAR99 classification. Moisture sensitivity level is 1 (Unlimited) for both variants.

Q: Which part should be selected for automated assembly?

A: MMBZ18VALYT116 with Tape & Reel packaging is the appropriate choice for automated pick-and-place assembly operations.

Q: Can these parts be used interchangeably in high-temperature applications?

A: The MMBZ18VALYT116 specifies an operating temperature of 150°C (TJ). Use the manufacturer's datasheet to confirm thermal performance requirements for your specific application.