AMMSZ5252A-HF Zener Diode Equivalent & Substitute Parts

Part Overview

The AMMSZ5252A-HF is a 24 V, 500 mW surface mount zener diode manufactured by Comchip Technology in SOD-123 package. This component is classified as an automotive-grade diode with AEC-Q101 qualification and is actively produced. The part is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical and mechanical specifications are required for design flexibility, supply chain continuity, or inventory management. Equivalent zener diodes must maintain identical nominal voltage, power rating, tolerance, impedance, leakage current, operating temperature range, package type, and automotive qualification to ensure functional interchangeability.

Substiute Parts

AMMSZ5252A-HF

Comchip TechnologyIn Stock: 841AMMSZ5252A-HF Datasheet

Current PartRFQ

MMSZ5252A-AU_R1_000A1

Panjit International Inc.In Stock: 4043MMSZ5252A-AU_R1_000A1 Datasheet

Parametric EquivalentRFQ

MMSZ5252A_R1_00001

Panjit International Inc.In Stock: 12749MMSZ5252A_R1_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AMMSZ5252A-HF are qualified based on strict equivalence across all critical electrical and mechanical parameters. The substitution logic requires that all substitute components maintain:

Electrical Parameters:

• Nominal zener voltage: 24 V
• Tolerance: ±2%
• Maximum power dissipation: 500 mW
• Maximum impedance: 33 Ohms
• Reverse leakage current: 100 nA @ 18 V
• Operating temperature range: -50°C to 150°C (TJ)

Mechanical & Compliance Parameters:

• Package type: SOD-123 surface mount
• Automotive grade classification
• AEC-Q101 qualification
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

All identified substitute parts meet these criteria without exception. Substitution is valid only when all parameters match the main part specification.

Parameter Comparison

Engineering Selection Recommendations

MMSZ5252A-AU_R1_000A1 (Panjit International Inc.)

This substitute part is fully qualified for direct replacement. All electrical parameters, mechanical specifications, automotive grade classification, and AEC-Q101 qualification are identical to the main part. RoHS3 compliance and MSL 1 rating are maintained. This part is actively produced with 3,976 units in stock.

MMSZ5252A_R1_00001 (Panjit International Inc.)

This substitute part matches all critical electrical parameters and mechanical specifications of the main part. RoHS3 compliance and MSL 1 rating are confirmed. Product status is active with 12,727 units in stock. Automotive grade and AEC-Q101 qualification are not explicitly stated in the provided data for this variant; however, all electrical and thermal specifications are identical to the main part.

Both substitute parts are manufactured by Panjit International Inc. and maintain full parametric equivalence with the AMMSZ5252A-HF across all specified electrical and mechanical criteria.

Frequently Asked Questions (FAQ)

Q: Can MMSZ5252A-AU_R1_000A1 and MMSZ5252A_R1_00001 be used interchangeably with AMMSZ5252A-HF?

A: Both Panjit parts are parametric equivalents with identical electrical specifications (24 V nominal, 500 mW, ±2% tolerance, 33 Ohms impedance, 100 nA leakage). Both are surface mount SOD-123 packages with matching operating temperature ranges (-50°C to 150°C). MMSZ5252A-AU_R1_000A1 carries explicit automotive grade and AEC-Q101 qualification matching the main part. Both are RoHS3 compliant with MSL 1 rating.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: nominal zener voltage (24 V), tolerance (±2%), maximum power (500 mW), impedance (33 Ohms maximum), reverse leakage current (100 nA @ 18 V), operating temperature range (-50°C to 150°C), SOD-123 package type, surface mount configuration, and RoHS3 compliance. For automotive applications, AEC-Q101 qualification is required.

Q: Are all substitute parts available in the same packaging format?

A: Yes. The main part AMMSZ5252A-HF and both substitute parts (MMSZ5252A-AU_R1_000A1 and MMSZ5252A_R1_00001) are supplied in Tape & Reel (TR) packaging for surface mount assembly.

Q: What is the difference between the two Panjit substitute parts?

A: Both Panjit parts maintain identical electrical and mechanical specifications. MMSZ5252A-AU_R1_000A1 explicitly lists automotive grade and AEC-Q101 qualification. MMSZ5252A_R1_00001 does not include these qualifications in the provided data but matches all electrical parameters. MMSZ5252A_R1_00001 has higher inventory availability (12,727 units versus 3,976 units).

Q: Is the SOD-123 package compatible with existing PCB designs for AMMSZ5252A-HF?

A: Yes. All substitute parts use the SOD-123 surface mount package, which is mechanically and electrically identical to the main part package. PCB footprints, solder pad layouts, and assembly processes remain unchanged.

Q: Are these parts suitable for automotive applications?

A: MMSZ5252A-AU_R1_000A1 is explicitly qualified for automotive use with AEC-Q101 certification. The main part AMMSZ5252A-HF carries automotive grade and AEC-Q101 qualification. Both parts meet automotive reliability and qualification standards.