MMBZ5243B-7-G Equivalent & Substitute Parts

Part Overview

The MMBZ5243B-7-G is a Zener diode manufactured by Diodes Incorporated, classified in the SOT523 package category. This component is designated as obsolete, necessitating identification of active equivalent parts for ongoing design requirements and procurement needs. The substitute part maintains functional compatibility while offering improved availability and active product status.

Substiute Parts

MMBZ5243B-7-G

Diodes IncorporatedIn Stock: 1098MMBZ5243B-7-G Datasheet

Current PartRFQ

MMBZ5243B-7-F

Diodes IncorporatedIn Stock: 7618MMBZ5243B-7-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The MMBZ5243B-7-G is substituted by the MMBZ5243B-7-F based on the following substitution criteria:

Matching Parameters:

• Identical manufacturer (Diodes Incorporated)
• Identical component category (Diodes, Zener)
• Identical base product number (MMBZ5243)
• Identical RoHS compliance status (ROHS3 Compliant)
• Identical Moisture Sensitivity Level (MSL 1 - Unlimited)
• Identical REACH status (REACH Unaffected)
• Identical ECCN classification (EAR99)
• Identical HTSUS code (8541.10.0050)

The MMBZ5243B-7-F represents the active production equivalent with enhanced availability and current product status, while maintaining all regulatory and compliance requirements of the obsolete MMBZ5243B-7-G.

Parameter Comparison

Engineering Selection Recommendations

The MMBZ5243B-7-F is the direct substitute for the obsolete MMBZ5243B-7-G. Selection of the MMBZ5243B-7-F is supported by:

• Active product status ensuring long-term availability and supply chain continuity
• Full ROHS3 compliance matching the original part specification
• Identical regulatory classification (ECCN EAR99, HTSUS 8541.10.0050)
• Unlimited moisture sensitivity rating (MSL 1) maintaining handling requirements
• REACH unaffected status confirming regulatory alignment
• Significantly higher inventory availability (7589 units versus 1081 units)
• Identical manufacturer and base product lineage

The substitute part maintains all compliance and regulatory requirements while providing improved procurement viability for new designs and production continuity.

Frequently Asked Questions (FAQ)

Q: Can the MMBZ5243B-7-F directly replace the MMBZ5243B-7-G in existing designs?

A: Yes. Both parts share identical manufacturer, base product number, and all regulatory compliance certifications (ROHS3, REACH, ECCN, HTSUS). The substitute is the active production equivalent.

Q: What is the difference between SOT523 and SOT-23-3 packaging?

A: The MMBZ5243B-7-G specifies SOT523 packaging, while the MMBZ5243B-7-F is available in TO-236-3, SC-59, and SOT-23-3 packages. Package compatibility must be verified against specific PCB layout and assembly requirements.

Q: Why is the MMBZ5243B-7-G listed as obsolete?

A: Obsolete status indicates the part is no longer in active production. The MMBZ5243B-7-F represents the current production equivalent from the same manufacturer.

Q: Are there any compliance differences between the two parts?

A: No. Both parts maintain identical ROHS3 compliance, REACH unaffected status, MSL 1 rating, and ECCN/HTSUS classifications.

Q: What electrical specifications apply to the MMBZ5243B-7-F?

A: The MMBZ5243B-7-F is specified as a 13 V Zener diode with 350 mW maximum power dissipation, ±5% tolerance, 13 Ohms maximum impedance, and 500 nA reverse leakage current at 9.9 V. Operating temperature range is -65°C to 150°C.

Q: Is inventory availability a factor in part selection?

A: The MMBZ5243B-7-F has significantly higher inventory availability (7589 units) compared to the obsolete MMBZ5243B-7-G (1081 units), supporting supply chain continuity for production requirements.