MMBZ27VALFHT116 Equivalent & Substitute Parts

Part Overview

The MMBZ27VALFHT116 is an automotive-grade Transient Voltage Suppressor (TVS) diode manufactured by Rohm Semiconductor. This unidirectional zener diode is designed for surface mount applications in protective circuits requiring transient voltage suppression. The device operates with a 22V reverse standoff voltage and provides 40V maximum clamping voltage at 1A peak pulse current, making it suitable for general-purpose overvoltage protection in automotive and industrial applications. The part is currently in active production status with AEC-Q101 automotive qualification and ROHS3 compliance. Identifying equivalent substitute parts is necessary when the original part number becomes unavailable or when alternative packaging formats better suit manufacturing requirements.

Substiute Parts

MMBZ27VALFHT116

Rohm SemiconductorIn Stock: 756MMBZ27VALFHT116 Datasheet

Current PartRFQ

MMBZ27VALYFHT116

Rohm SemiconductorIn Stock: 1371MMBZ27VALYFHT116 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MMBZ27VALFHT116 is determined by strict equivalence across the following critical electrical and mechanical parameters:

Voltage specifications must match exactly: 22V reverse standoff voltage (maximum), 25.65V minimum breakdown voltage, and 40V maximum clamping voltage at 1A peak pulse current. Current and power ratings must be identical: 1A peak pulse current and 40W peak pulse power. The device must maintain the same zener type classification and unidirectional channel configuration. Automotive-grade qualification (AEC-Q101) and ROHS3 compliance are mandatory for substitution in regulated applications. Surface mount mounting type and SOT-23-3 package family compatibility are required. Operating temperature range must support 150°C junction temperature minimum.

The MMBZ27VALYFHT116 qualifies as a direct electrical substitute based on identical voltage, current, power, temperature, and compliance specifications. The primary difference is packaging format: the substitute is supplied in Tape & Reel (TR) format versus Cut Tape (CT) for the original part, and features dual-line anode configuration in a standard SOT-23 package variant rather than the SSD3 supplier device package designation.

Parameter Comparison

Engineering Selection Recommendations

Both the MMBZ27VALFHT116 and MMBZ27VALYFHT116 are active production parts from Rohm Semiconductor with identical electrical specifications and automotive-grade AEC-Q101 qualification. Selection between these parts should be based on procurement and manufacturing requirements rather than electrical performance.

The MMBZ27VALFHT116 in Cut Tape packaging is suitable for lower-volume applications, prototype builds, and manual assembly processes. The MMBZ27VALYFHT116 in Tape & Reel packaging is optimized for high-volume automated assembly operations and reduces material handling costs in production environments. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with standard surface mount assembly processes and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can MMBZ27VALYFHT116 replace MMBZ27VALFHT116 in circuit design?

A: Yes. Both parts are electrically identical with matching voltage specifications (22V standoff, 40V clamping), current ratings (1A peak pulse), power dissipation (40W), and operating temperature (150°C). They share identical automotive qualification (AEC-Q101) and compliance certifications (ROHS3). The only difference is packaging format: Cut Tape versus Tape & Reel.

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

A: Cut Tape (CT) packaging supplies individual components on tape segments, typically used for lower-volume orders and manual assembly. Tape & Reel (TR) packaging supplies components on continuous reels optimized for automated pick-and-place assembly equipment. Both formats contain identical components with identical electrical performance.

Q: Are there any pin configuration differences between these parts?

A: The MMBZ27VALYFHT116 features dual-line anode configuration in standard SOT-23 package format, while the MMBZ27VALFHT116 uses SSD3 supplier device package designation. Both conform to TO-236-3, SC-59, SOT-23-3 package specifications with identical pinout and footprint compatibility.

Q: Do both parts meet automotive standards?

A: Yes. Both the MMBZ27VALFHT116 and MMBZ27VALYFHT116 carry automotive-grade classification with AEC-Q101 qualification, making them suitable for automotive and industrial applications requiring transient voltage suppression.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates that these components have unlimited shelf life and do not require special moisture-controlled storage conditions. This simplifies inventory management and reduces storage costs compared to higher MSL-rated components.