Equivalent & Substitute Parts Reference for AMMSZ5259A-HF Zener Diode

Part Overview

AMMSZ5259A-HF is an automotive-grade, surface mount Zener diode manufactured by Comchip Technology. This device is characterized by a nominal Zener voltage of 39 V, maximum power dissipation of 500 mW, and tight tolerance of ±2%, contained in the SOD-123 package. The part is active and RoHS3 compliant, available in tape and reel packaging for automated assembly. Seeking alternative models is necessary to allow second-source qualification, secure supply continuity, and address stringent automotive approval requirements.

Substiute Parts

AMMSZ5259A-HF

Comchip TechnologyIn Stock: 1117AMMSZ5259A-HF Datasheet

Current PartRFQ

MMSZ5259A_R1_00001

Panjit International Inc.In Stock: 10364MMSZ5259A_R1_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute part selection is restricted to models matching all critical electrical and mechanical specifications. The allowed parameters for substitution include: nominal Zener voltage (39 V), maximum power dissipation (500 mW), tolerance (±2%), impedance (80 Ohms), reverse leakage (100 nA @ 30 V), identical operating temperature range (-50°C ~ 150°C), mounting type (surface mount), package and supplier device package (SOD-123), product status (active), and environmental compliance (RoHS). Only parts aligning with these parameters are qualified as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

Selection between AMMSZ5259A-HF and MMSZ5259A_R1_00001 is supported by active product status, RoHS3 compliance, and equivalent moisture sensitivity levels (MSL 1). Each device meets the outlined regulatory classifications (ECCN: EAR99, HTSUS: 8541.10.0050) and packaging formats. Both are available in new, original stock and meet key environmental and electrical criteria for direct substitution in surface mount Zener diode applications.

Frequently Asked Questions (FAQ)

Q: What are the mandatory electrical parameters matching for AMMSZ5259A-HF substitutes?
A: Substitutes must align with Zener voltage (39 V), power dissipation (500 mW), tolerance (±2%), impedance (80 Ohms), and reverse leakage (100 nA @ 30 V).

Q: Are both AMMSZ5259A-HF and MMSZ5259A_R1_00001 compatible for automated placement?
A: Yes, both utilize the SOD-123 surface mount package and are supplied in Tape & Reel format.

Q: Do the parts share identical operating temperature characteristics?
A: Both have an operating temperature range of -50°C to +150°C (TJ).

Q: Is there any difference in compliance or moisture sensitivity?
A: Both are RoHS3 compliant, with Moisture Sensitivity Level (MSL) rating of 1 (Unlimited).

Q: Who are the respective manufacturers of the compatible Zener diodes?
A: AMMSZ5259A-HF is manufactured by Comchip Technology; MMSZ5259A_R1_00001 is manufactured by Panjit International Inc.