MMBZ9V1AL-7-F Equivalent & Substitute Parts

Part Overview

The MMBZ9V1AL-7-F is a Transient Voltage Suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 6V reverse standoff voltage with a 14V maximum clamping voltage and 1.7A peak pulse current capability in a compact SOT-23-3 package. The part is currently listed as obsolete, making identification of equivalent and substitute components essential for ongoing design support and procurement.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	6	V
Voltage - Breakdown (Min)	8.65	V
Voltage - Clamping (Max) @ Ipp	14	V
Current - Peak Pulse (10/1000µs)	1.7	A
Power - Peak Pulse	24	W
Type	Zener	-
Unidirectional Channels	2	-
Package / Case	TO-236-3, SC-59, SOT-23-3	-
Mounting Type	Surface Mount	-
Operating Temperature Range	-65°C ~ 150°C (TJ)	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution of the MMBZ9V1AL-7-F is determined by strict equivalence across the following critical electrical and mechanical parameters:

Voltage - Reverse Standoff: 6V
Voltage - Breakdown (Min): 8.65V
Voltage - Clamping (Max) @ Ipp: 14V
Current - Peak Pulse (10/1000µs): 1.7A
Power - Peak Pulse: 24W
Package / Case: TO-236-3, SC-59, SOT-23-3
Unidirectional Channels: 2
Type: Zener

All identified substitute parts maintain identical electrical specifications across these parameters. Variations in operating temperature range, product status, and automotive qualification do not affect functional equivalence for general-purpose TVS applications. Packaging format differences (Tape & Reel versus bulk) represent procurement variations only and do not impact electrical performance.

Parameter Comparison

Parameter	MMBZ9V1AL-7-F (Diodes Inc.)	MMBZ9V1ALT1G (onsemi)	SZMMBZ9V1ALT3G (onsemi)	MMBZ9V1AL,215 (Nexperia)
Manufacturer	Diodes Incorporated	onsemi	onsemi	Nexperia USA Inc.
Product Status	Obsolete	Active	Active	Active
Voltage - Reverse Standoff (Typ)	6V	6V	6V	6V (Max)
Voltage - Breakdown (Min)	8.65V	8.65V	8.65V	8.65V
Voltage - Clamping (Max) @ Ipp	14V	14V	14V	14V
Current - Peak Pulse (10/1000µs)	1.7A	1.7A	1.7A	1.7A
Power - Peak Pulse	24W	24W	24W	24W
Operating Temperature	-65°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TA)
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
Supplier Device Package	SOT-23-3	SOT-23-3 (TO-236)	SOT-23-3 (TO-236)	TO-236AB
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Automotive Grade	-	-	Yes (AEC-Q101)	Yes (AEC-Q101)

Engineering Selection Recommendations

All three substitute parts are electrically and mechanically equivalent to the MMBZ9V1AL-7-F across the critical parameters that define TVS diode functionality. Selection among these alternatives should be based on the following factors:

MMBZ9V1ALT1G (onsemi): Active product status with standard commercial qualification. Suitable for general-purpose applications where automotive certification is not required. Available in Tape & Reel packaging.

SZMMBZ9V1ALT3G (onsemi): Active product status with AEC-Q101 automotive qualification. Recommended for applications requiring automotive-grade components. Available in Tape & Reel packaging with high inventory availability.

MMBZ9V1AL,215 (Nexperia): Active product status with AEC-Q101 automotive qualification and manufacturer recommended status. Suitable for automotive and industrial applications. Available in Tape & Reel packaging with documented capacitance specification (155pF @ 1MHz).

The operating temperature range difference between the original part (-65°C to 150°C) and substitute parts (-55°C to 150°C) does not affect substitution validity for applications operating within the -55°C to 150°C envelope.

Frequently Asked Questions (FAQ)

Q: Can MMBZ9V1ALT1G replace MMBZ9V1AL-7-F in all applications?

A: Yes. Both parts share identical electrical specifications for voltage clamping, breakdown voltage, peak pulse current, and power dissipation. The difference in product status (Active versus Obsolete) does not affect electrical equivalence. Operating temperature range is -55°C to 150°C for the substitute versus -65°C to 150°C for the original; substitution is valid for applications within the -55°C to 150°C range.

Q: What is the difference between SZMMBZ9V1ALT3G and MMBZ9V1ALT1G?

A: Both are manufactured by onsemi with identical electrical specifications. SZMMBZ9V1ALT3G carries AEC-Q101 automotive qualification and is designated as automotive-grade. MMBZ9V1ALT1G is standard commercial grade. Selection depends on application requirements for automotive certification.

Q: Is the Nexperia MMBZ9V1AL,215 suitable for automotive applications?

A: Yes. MMBZ9V1AL,215 carries AEC-Q101 automotive qualification and is designated as manufacturer recommended. It is suitable for automotive and industrial applications requiring qualified components.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR) packaging is a procurement format only. All substitute parts in Tape & Reel format are electrically identical to bulk packaging. The SOT-23-3 package footprint and pinout remain consistent across all alternatives.

Q: Can I use these parts interchangeably on the same PCB?

A: Yes. All substitute parts use the identical SOT-23-3 package with the same pinout and footprint. Direct PCB substitution is possible without layout modifications.

Q: Why does MMBZ9V1AL,215 specify capacitance while others do not?

A: Capacitance specification (155pF @ 1MHz) is provided by Nexperia but not documented for other manufacturers. This parameter does not affect TVS functionality or substitution validity. All parts are electrically equivalent for transient voltage suppression applications.

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