AMMSZ5240A-HF Equivalent & Substitute Parts

Part Overview

The AMMSZ5240A-HF is a surface mount silicon zener diode manufactured by Comchip Technology, rated at 10 V nominal zener voltage with 500 mW maximum power dissipation in SOD-123 packaging. This component is classified as an active product with AEC-Q101 automotive qualification and ROHS3 compliance. Substitute parts are identified based on matching electrical specifications and mechanical compatibility to ensure functional equivalence in circuit applications where the original part is unavailable or supply constraints require alternative sourcing.

Substiute Parts

AMMSZ5240A-HF

Comchip TechnologyIn Stock: 768AMMSZ5240A-HF Datasheet

Current PartRFQ

MMSZ5240A_R1_00001

Panjit International Inc.In Stock: 2276MMSZ5240A_R1_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AMMSZ5240A-HF are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - Zener (Nom): 10 V
• Tolerance: ±2%
• Power - Max: 500 mW
• Impedance (Max): 17 Ohms
• Current - Reverse Leakage @ Vr: 3 µA @ 8 V
• Operating Temperature Range: -50°C to 150°C
• Package / Case: SOD-123
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

The MMSZ5240A_R1_00001 manufactured by Panjit International Inc. meets all specified electrical and mechanical parameters, establishing it as a parametric equivalent. This substitute maintains identical zener voltage regulation characteristics, power handling capability, and thermal performance within the defined operating range.

Parameter Comparison

Engineering Selection Recommendations

The MMSZ5240A_R1_00001 is a direct parametric equivalent to the AMMSZ5240A-HF. Both components are active products with ROHS3 compliance and identical electrical specifications across all critical parameters. The substitute part maintains the same zener voltage regulation performance, power dissipation capability, and thermal operating range.

Selection between the AMMSZ5240A-HF and MMSZ5240A_R1_00001 is determined by availability and supply chain requirements. The Panjit part carries higher inventory availability (2193 pcs vs. 690 pcs), which may influence procurement decisions. Both parts are suitable for applications requiring 10 V zener regulation in surface mount SOD-123 form factor with 500 mW power handling.

The AMMSZ5240A-HF carries AEC-Q101 automotive qualification, which is not explicitly stated for the Panjit substitute. Applications requiring automotive-grade certification should verify qualification status with the supplier before substitution.

Frequently Asked Questions (FAQ)

Q: Can MMSZ5240A_R1_00001 be used as a direct replacement for AMMSZ5240A-HF?

A: Yes. The MMSZ5240A_R1_00001 meets all electrical and mechanical specifications of the AMMSZ5240A-HF, including zener voltage, tolerance, power rating, impedance, leakage current, operating temperature range, and SOD-123 packaging. Both components are ROHS3 compliant with MSL 1 rating.

Q: Are there differences in automotive qualification between these parts?

A: The AMMSZ5240A-HF carries AEC-Q101 automotive qualification. The MMSZ5240A_R1_00001 specification does not explicitly list automotive qualification. Applications requiring automotive-grade components should confirm qualification requirements with the supplier.

Q: What is the significance of the SOD-123 package for substitution?

A: SOD-123 is the specified surface mount package for both the main part and substitute. This package designation ensures mechanical and electrical compatibility on PCB layouts designed for SOD-123 footprints. No package conversion is required.

Q: Do the zener voltage tolerances affect substitution suitability?

A: Both parts carry ±2% tolerance on the 10 V nominal zener voltage, resulting in identical voltage regulation performance. This matching tolerance ensures equivalent circuit behavior in voltage regulation applications.

Q: What does MSL 1 (Unlimited) mean for component handling?

A: Moisture Sensitivity Level 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. Both the main part and substitute carry this rating, eliminating moisture-related compatibility concerns.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, provided the design does not specifically require AEC-Q101 automotive qualification. The electrical and mechanical specifications are identical, and both parts are surface mount SOD-123 devices suitable for direct PCB substitution.