MMBD330T1 Equivalent & Substitute Parts

Part Overview

The MMBD330T1 is a Schottky diode manufactured by onsemi, rated for 1A at 30V in a SOT-323 surface-mount package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement planning. The part is RoHS non-compliant and carries an MSL rating of 1 (Unlimited), indicating no moisture sensitivity constraints during storage and handling.

Substiute Parts

MMBD330T1

onsemiIn Stock: 4073MMBD330T1 Datasheet

Current PartRFQ

MMBD330T1G

onsemiIn Stock: 3415MMBD330T1G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The MMBD330T1G qualifies as a direct substitute based on the following alignment of critical electrical and mechanical parameters:

• Diode Type: Both are Schottky diodes with single junction configuration
• Voltage Rating: Both rated at 30V peak reverse voltage
• Package: Both use SC-70 / SOT-323 surface-mount package
• Manufacturer: Both manufactured by onsemi, ensuring design continuity
• MSL Rating: Both carry MSL 1 (Unlimited), maintaining equivalent moisture sensitivity characteristics

The primary distinction is current rating: MMBD330T1G is rated for 200 mA maximum, compared to the 1A specification of MMBD330T1. This represents a reduction in current-handling capacity and must be evaluated against circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

MMBD330T1G is the active equivalent for MMBD330T1 applications where current requirements do not exceed 200 mA. The substitute maintains identical voltage rating (30V) and package form factor (SOT-323), ensuring direct PCB compatibility.

Key considerations for selection:

• Product Status: MMBD330T1G is active and in production, whereas MMBD330T1 is obsolete. Transition to MMBD330T1G is recommended for new designs and ongoing procurement.
• RoHS Compliance: MMBD330T1G meets ROHS3 standards, providing regulatory advantage over the non-compliant MMBD330T1.
• Current Rating: Verify that circuit peak forward current does not exceed 200 mA. Applications requiring sustained 1A operation require alternative component selection.
• Compliance Certifications: Both parts carry identical REACH Unaffected and EAR99 ECCN classifications, maintaining export and regulatory consistency.

Frequently Asked Questions (FAQ)

Q: Can MMBD330T1G directly replace MMBD330T1 in all applications?

A: Direct replacement is valid only when circuit forward current requirements do not exceed 200 mA. The MMBD330T1G is rated for 200 mA maximum, compared to 1A for the original part. Verify your circuit's peak forward current specification before substitution.

Q: Are the packages physically identical?

A: Yes. Both MMBD330T1 and MMBD330T1G use the SC-70 / SOT-323 surface-mount package. PCB footprints and land patterns are identical, enabling direct physical substitution without layout modification.

Q: What is the difference in RoHS compliance?

A: MMBD330T1 is RoHS non-compliant, while MMBD330T1G meets ROHS3 standards. For applications subject to RoHS regulations or customer requirements, MMBD330T1G is the compliant choice.

Q: Are there differences in moisture sensitivity?

A: No. Both parts carry MSL 1 (Unlimited) ratings, indicating no moisture sensitivity constraints. Storage and handling procedures are equivalent.

Q: Why is MMBD330T1 listed as obsolete?

A: MMBD330T1 has been discontinued by onsemi. MMBD330T1G represents the active production equivalent and is the recommended long-term solution for new designs and inventory replenishment.

Q: What packaging formats are available for MMBD330T1G?

A: MMBD330T1G is supplied in Tape & Reel (TR) format, standard for automated assembly operations. Verify packaging compatibility with your procurement and assembly processes.