AMMSZ5237A-HF Equivalent & Substitute Parts

Part Overview

The AMMSZ5237A-HF is an active-status zener diode manufactured by Comchip Technology, rated at 8.2 V nominal with 500 mW power dissipation capability. This surface mount component in SOD-123 packaging is designed for voltage regulation and protection applications requiring precise zener characteristics. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity while maintaining identical electrical and mechanical specifications.

Substiute Parts

AMMSZ5237A-HF

Comchip TechnologyIn Stock: 775AMMSZ5237A-HF Datasheet

Current PartRFQ

MMSZ5237A_R1_00001

Panjit International Inc.In Stock: 3957MMSZ5237A_R1_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AMMSZ5237A-HF are qualified based on strict equivalence across the following critical parameters:

• Voltage - Zener (Nom): 8.2 V
• Tolerance: ±1.95%
• Power - Max: 500 mW
• Impedance (Max): 8 Ohms
• Current - Reverse Leakage @ Vr: 3 µA @ 6 V
• Operating Temperature Range: -50°C to 150°C (TJ)
• Package / Case: SOD-123
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

All identified substitute parts meet these specifications without deviation. The MMSZ5237A_R1_00001 manufactured by Panjit International Inc. is a parametric equivalent that satisfies all electrical and mechanical requirements for direct substitution in the AMMSZ5237A-HF application.

Parameter Comparison

Engineering Selection Recommendations

The MMSZ5237A_R1_00001 from Panjit International Inc. is a direct parametric equivalent to the AMMSZ5237A-HF. Both components are active-status products with identical electrical specifications, mechanical packaging, and regulatory compliance status. Selection between these parts is based on availability, lead time, and procurement requirements rather than technical performance differences.

Both parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity classification, ensuring compatibility with standard surface mount assembly processes and storage conditions. The identical operating temperature range of -50°C to 150°C (TJ) supports equivalent thermal performance in target applications.

Frequently Asked Questions (FAQ)

Q: Can MMSZ5237A_R1_00001 be used as a direct replacement for AMMSZ5237A-HF?

A: Yes. The MMSZ5237A_R1_00001 meets all electrical and mechanical specifications of the AMMSZ5237A-HF, including zener voltage, tolerance, power rating, impedance, leakage current, and operating temperature range. Both components use SOD-123 surface mount packaging and are ROHS3 compliant.

Q: Are there differences in package dimensions between these parts?

A: No. Both the AMMSZ5237A-HF and MMSZ5237A_R1_00001 use the SOD-123 package, which has standardized dimensions. No PCB layout modifications are required for substitution.

Q: What is the tolerance specification for the zener voltage?

A: Both parts specify ±1.95% tolerance on the 8.2 V nominal zener voltage, resulting in an operating range of approximately 8.04 V to 8.36 V.

Q: Do both parts support the same operating temperature range?

A: Yes. Both components operate across -50°C to 150°C (TJ), supporting identical thermal performance requirements.

Q: What is the maximum power dissipation for these zener diodes?

A: Both parts are rated for 500 mW maximum power dissipation, with a maximum impedance of 8 Ohms at the specified operating point.

Q: Are moisture sensitivity considerations the same for both parts?

A: Yes. Both components carry MSL 1 (Unlimited) classification, indicating no moisture sensitivity restrictions and compatibility with standard storage and assembly conditions.

Q: What is the reverse leakage current specification?

A: Both parts specify a maximum reverse leakage current of 3 µA measured at 6 V reverse bias.