AMMSZ5234A-HF Equivalent & Substitute Parts

Part Overview

The AMMSZ5234A-HF is an automotive-grade Zener diode manufactured by Comchip Technology, rated at 6.2 V nominal with 500 mW power dissipation capability in a surface mount SOD-123 package. This component is classified as Active and carries AEC-Q101 automotive qualification. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, supply chain continuity, or inventory optimization while maintaining functional compatibility within the specified operating envelope.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	6.2	V
Tolerance	±1.94	%
Power - Max	500	mW
Impedance (Max)	7	Ohms
Current - Reverse Leakage @ Vr	5	µA @ 4 V
Operating Temperature Range	-50 to 150	°C (TJ)
Package / Case	SOD-123	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the AMMSZ5234A-HF are identified based on strict equivalence across the following critical parameters:

Zener Voltage (Vz): 6.2 V nominal with ±1.94% tolerance
Power Dissipation: 500 mW maximum
Impedance (Zzt): 7 Ohms maximum
Reverse Leakage Current: 5 µA @ 4 V
Operating Temperature Range: -50°C to 150°C (TJ)
Package Configuration: SOD-123 surface mount
Regulatory Compliance: ROHS3 compliant
Moisture Sensitivity: MSL 1 (Unlimited)

Substitution is valid only when all electrical characteristics and mechanical parameters match within the specified tolerances. The MMSZ5234A_R1_00001 from Panjit International Inc. meets all these criteria and is therefore classified as a parametric equivalent.

Parameter Comparison

Parameter	AMMSZ5234A-HF (Comchip)	MMSZ5234A_R1_00001 (Panjit)	Match Status
Voltage - Zener (Nom)	6.2 V	6.2 V	Equivalent
Tolerance	±1.94%	±1.94%	Equivalent
Power - Max	500 mW	500 mW	Equivalent
Impedance (Max)	7 Ohms	7 Ohms	Equivalent
Current - Reverse Leakage @ Vr	5 µA @ 4 V	5 µA @ 4 V	Equivalent
Operating Temperature Range	-50°C ~ 150°C (TJ)	-50°C ~ 150°C (TJ)	Equivalent
Package / Case	SOD-123	SOD-123	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent

Engineering Selection Recommendations

Both the AMMSZ5234A-HF and MMSZ5234A_R1_00001 are Active products with full ROHS3 compliance and MSL 1 rating, indicating unrestricted moisture handling and storage. The AMMSZ5234A-HF carries AEC-Q101 automotive qualification, establishing its suitability for automotive applications. The MMSZ5234A_R1_00001 does not list AEC-Q101 qualification in the provided parameters.

Selection between these parts should be based on application-specific requirements:

AMMSZ5234A-HF: Use when AEC-Q101 automotive qualification is a mandatory design requirement.
MMSZ5234A_R1_00001: Use as a parametric equivalent when automotive qualification is not required and supply chain or inventory considerations apply.

Both parts are electrically and mechanically interchangeable within circuits designed for 6.2 V Zener regulation at 500 mW power dissipation in SOD-123 surface mount applications.

Frequently Asked Questions (FAQ)

Q: Can MMSZ5234A_R1_00001 replace AMMSZ5234A-HF in automotive applications?

A: MMSZ5234A_R1_00001 is a parametric electrical equivalent. However, the AMMSZ5234A-HF carries AEC-Q101 qualification while MMSZ5234A_R1_00001 does not list this certification in the provided specifications. Automotive applications requiring AEC-Q101 compliance must use the AMMSZ5234A-HF.

Q: Are the packages identical?

A: Yes. Both parts use SOD-123 surface mount packaging with identical mechanical dimensions and land pattern requirements. No PCB layout modifications are necessary for substitution.

Q: What is the tolerance difference between these parts?

A: Both parts share identical tolerance specifications of ±1.94% on the

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message