MMSZ5239B Equivalent & Substitute Parts Reference

Part Overview

The Taiwan Semiconductor Corporation MMSZ5239B is a surface mount Zener diode in the SOD-123F package with a nominal Zener voltage of 9.1 V, 500 mW power rating, and ±5% tolerance. It is categorized under Diodes, Zener, and supplied in Tape & Reel (TR) packaging. The part has an active status. Identifying alternative models is necessary for inventory management, supply chain flexibility, and to maintain design compatibility in cases of sourcing constraints or varying lead times.

Substiute Parts

MMSZ5239B

Taiwan Semiconductor CorporationIn Stock: 35495MMSZ5239B Datasheet

Current PartRFQ

MMSZ5239B RHG

Taiwan Semiconductor CorporationIn Stock: 6901MMSZ5239B RHG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is determined strictly by matching critical electrical and mechanical parameters, category, and compliance requirements. The following key parameters must align for substitution: manufacturer part number root, category (Diodes, Zener), voltage rating (9.1 V), tolerance (±5%), power rating (500 mW), maximum impedance (10 Ohms), reverse leakage (3 µA @ 7 V), package/case (SOD-123F), mounting type (Surface Mount), and compliance statuses (RoHS, REACH, ECCN, HTSUS). The substitute listed meets these requirements.

Parameter Comparison

Engineering Selection Recommendations

Both MMSZ5239B and MMSZ5239B RHG have active product status, are ROHS3 Compliant, and are REACH Unaffected. Both parts share the same ECCN and HTSUS classifications. Selection between these options can be made on product status and compliance alone, with both meeting the provided certification and inventory conditions.

Frequently Asked Questions (FAQ)

Q1: What determines whether MMSZ5239B and MMSZ5239B RHG are substitutable?
A1: Substitution is determined by strict equivalence in voltage rating, tolerance, power rating, impedance, leakage current, package, mounting type, and compliance status.

Q2: Are there any differences in packaging or part status between MMSZ5239B and MMSZ5239B RHG?
A2: Both are supplied in Tape & Reel (TR) packaging and both have active part status.

Q3: Can MMSZ5239B RHG be used directly in a design that specifies MMSZ5239B?
A3: Yes, both parts match in mechanical and electrical parameters, as well as in compliance and package specifications.

Q4: Are there any compliance or certification differences between the parts?
A4: Both are ROHS3 Compliant, REACH Unaffected, and share the same ECCN and HTSUS designations.

Q5: Is the mounting type consistent for substitution?
A5: Yes, both diodes are rated for surface mount applications and use the SOD-123F package.