AMMSZ5250A-HF Zener Diode Equivalent & Substitute Parts

Part Overview

The AMMSZ5250A-HF is a 20 V, 500 mW surface mount zener diode manufactured by Comchip Technology in SOD-123 package. This component is classified as an active product with automotive-grade qualification (AEC-Q101) and ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical packaging, and qualification standards to ensure direct functional interchangeability in circuit applications.

Substiute Parts

AMMSZ5250A-HF

Comchip TechnologyIn Stock: 821AMMSZ5250A-HF Datasheet

Current PartRFQ

MMSZ5250A-AU_R1_000A1

Panjit International Inc.In Stock: 2923MMSZ5250A-AU_R1_000A1 Datasheet

Parametric EquivalentRFQ

MMSZ5250A_R1_00001

Panjit International Inc.In Stock: 41569MMSZ5250A_R1_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AMMSZ5250A-HF are identified as parametric equivalents based on the following criteria:

Electrical Parameters (Critical for Substitution):

• Zener voltage: 20 V nominal
• Tolerance: ±2%
• Maximum power dissipation: 500 mW
• Maximum impedance: 25 Ohms
• Reverse leakage current: 100 nA @ 15 V
• Forward voltage: 900 mV @ 10 mA (where specified)

Mechanical & Environmental Parameters:

• Package type: SOD-123 surface mount
• Operating temperature range: -50°C ~ 150°C (TJ)
• Mounting type: Surface Mount

Compliance & Qualification:

• Automotive grade classification
• AEC-Q101 qualification
• ROHS3 compliance
• Moisture Sensitivity Level 1

All substitute parts listed meet these criteria and are classified as active products with current manufacturing status.

Parameter Comparison

Engineering Selection Recommendations

MMSZ5250A-AU_R1_000A1 (Panjit International Inc.): This substitute part is a full parametric equivalent with identical electrical specifications, package type, and automotive-grade qualification. Both the main part and this substitute carry AEC-Q101 certification and ROHS3 compliance. This part is suitable for direct replacement in automotive and industrial applications requiring AEC-Q101 qualification.

MMSZ5250A_R1_00001 (Panjit International Inc.): This substitute part matches all critical electrical parameters and packaging specifications. However, automotive grade and AEC-Q101 qualification status are not specified in the provided data. This part is suitable for applications where automotive qualification is not a requirement. Verification of application requirements is necessary before selection.

Both substitute parts are active products with current manufacturing status and established inventory availability.

Frequently Asked Questions (FAQ)

Q: Can MMSZ5250A-AU_R1_000A1 be used as a direct replacement for AMMSZ5250A-HF?

A: Yes. Both parts share identical zener voltage (20 V), tolerance (±2%), power rating (500 mW), impedance (25 Ohms), reverse leakage current (100 nA @ 15 V), operating temperature range (-50°C ~ 150°C), SOD-123 package, and AEC-Q101 automotive qualification. Direct substitution is supported.

Q: What is the difference between MMSZ5250A-AU_R1_000A1 and MMSZ5250A_R1_00001?

A: Both parts have identical electrical and mechanical specifications. The primary difference is that MMSZ5250A-AU_R1_000A1 explicitly specifies automotive grade and AEC-Q101 qualification, while MMSZ5250A_R1_00001 does not include these qualifications in the provided data. For automotive applications, MMSZ5250A-AU_R1_000A1 is the appropriate selection.

Q: Are all substitute parts in the same SOD-123 package?

A: Yes. All parts listed—AMMSZ5250A-HF, MMSZ5250A-AU_R1_000A1, and MMSZ5250A_R1_00001—use SOD-123 surface mount packaging. PCB layout and footprint compatibility is maintained across all three parts.

Q: What is the operating temperature range for these zener diodes?

A: All parts operate across -50°C to 150°C junction temperature (TJ). This range supports both industrial and automotive temperature environments.

Q: Are these parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant and carry Moisture Sensitivity Level 1 (unlimited), indicating no moisture sensitivity restrictions during storage and handling.

Q: What is the reverse leakage current specification?

A: All parts specify 100 nanoamperes (nA) reverse leakage current measured at 15 V reverse bias. This specification is consistent across all substitute options.