MMSZ5259C-G3-08 Equivalent & Substitute Parts

Part Overview

The MMSZ5259C-G3-08 is a Zener diode rated at 39 V nominal voltage with 500 mW power dissipation in a surface mount SOD-123 package. Manufactured by Vishay General Semiconductor - Diodes Division, this component is classified as Active and maintains full RoHS3 compliance. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same product family, enabling procurement flexibility and supply chain continuity.

Substiute Parts

MMSZ5259C-G3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 1182MMSZ5259C-G3-08 Datasheet

Current PartRFQ

MMSZ5259C-E3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 15428MMSZ5259C-E3-08 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MMSZ5259C-G3-08 is determined by strict equivalence across the following critical parameters:

• Zener Voltage (Nominal): 39 V
• Voltage Tolerance: ±2%
• Maximum Power Dissipation: 500 mW
• Maximum Impedance: 80 Ohms
• Reverse Leakage Current: 100 nA @ 30 V
• Operating Temperature Range: -55°C to 150°C
• Package Type: SOD-123 surface mount
• Regulatory Compliance: RoHS3 Compliant, REACH Unaffected

Parts meeting all these specifications within the MMSZ5259 base product family are classified as parametric equivalents and direct substitutes. Deviations in any single parameter disqualify a part from substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

Both MMSZ5259C-G3-08 and MMSZ5259C-E3-08 are Active products manufactured by Vishay General Semiconductor - Diodes Division with identical electrical and mechanical specifications. Selection between these parts is based on availability and supply chain requirements rather than technical differentiation.

The MMSZ5259C-E3-08 maintains higher inventory availability (15,411 pcs) compared to the MMSZ5259C-G3-08 (1,156 pcs), making it the preferred choice for high-volume procurement or extended lead-time mitigation. Both parts satisfy RoHS3 compliance, REACH unaffected status, and MSL 1 moisture sensitivity requirements for unrestricted handling and storage.

Frequently Asked Questions (FAQ)

Q: Can MMSZ5259C-E3-08 be used as a direct replacement for MMSZ5259C-G3-08?

A: Yes. Both parts are parametric equivalents with identical Zener voltage (39 V), tolerance (±2%), power rating (500 mW), impedance (80 Ohms), reverse leakage current (100 nA @ 30 V), operating temperature range (-55°C to 150°C), and SOD-123 package specification. No circuit redesign or board layout modification is required.

Q: Are there differences in packaging or tape specifications between these parts?

A: Both parts are supplied in Tape & Reel (TR) format with SOD-123 package designation. No differences in mechanical compatibility or handling procedures apply.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both MMSZ5259C-G3-08 and MMSZ5259C-E3-08 are RoHS3 compliant, REACH unaffected, classified under ECCN EAR99, and carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the basis for substitution between these two part numbers?

A: Substitution is based on complete electrical and mechanical parameter equivalence within the MMSZ5259 base product family. Both parts share identical specifications across voltage rating, tolerance, power dissipation, impedance, leakage current, temperature range, and package type.

Q: Are there any performance differences in circuit operation?

A: No. Identical electrical characteristics ensure equivalent performance in voltage regulation, transient suppression, and protection circuit applications.