LL4002G L0G Equivalent & Substitute Parts

Part Overview

The LL4002G L0G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100 V DC reverse voltage and 1 A average rectified current in a surface mount MELF package. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The part operates across a junction temperature range of -65°C to 150°C and complies with RoHS3 and REACH standards.

Substiute Parts

LL4002G L0G

Taiwan Semiconductor CorporationIn Stock: 952LL4002G L0G Datasheet

Current PartRFQ

S1D

YAGEOIn Stock: 6087S1D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LL4002G L0G is determined by electrical and mechanical compatibility across the following critical parameters:

• Reverse Voltage Rating: The substitute must support a minimum DC reverse voltage of 100 V
• Forward Current Rating: The substitute must support a minimum average rectified current of 1 A
• Forward Voltage Drop: The substitute must not exceed 1.1 V at 1 A forward current
• Reverse Leakage Current: The substitute must maintain leakage specifications at rated reverse voltage
• Package Compatibility: Surface mount configuration with compatible footprint dimensions
• Compliance Standards: RoHS3 compliance and MSL rating of 1 or better

The identified substitute, S1D from YAGEO, meets these electrical and mechanical requirements within the specified parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

The S1D from YAGEO is an active product substitute for the obsolete LL4002G L0G. Selection of this substitute is supported by the following factors:

• Compliance Alignment: Both components maintain identical RoHS3 compliance and MSL ratings, ensuring regulatory and environmental compatibility
• Export Classification: Both components share the same ECCN (EAR99) and HTSUS codes, maintaining consistent trade compliance
• Product Availability: The S1D is an active product with confirmed inventory (5993 Pcs), providing supply continuity for the obsolete LL4002G L0G
• Electrical Equivalence: The S1D meets all specified electrical parameters within the defined ranges for reverse voltage, forward current, and forward voltage drop
• Surface Mount Configuration: Both components utilize surface mount technology with compatible package footprints suitable for automated assembly

Frequently Asked Questions (FAQ)

Q: Can the S1D directly replace the LL4002G L0G in existing designs?

A: The S1D meets all electrical and mechanical parameters specified for the LL4002G L0G. Both components are surface mount rectifier diodes with equivalent voltage and current ratings. PCB layout verification is required to confirm package footprint compatibility between DO-213AB (MELF) and DO-214AC packages.

Q: What is the difference between the DO-213AB and DO-214AC packages?

A: Both are surface mount diode packages. DO-213AB (MELF) and DO-214AC are distinct package geometries. Physical dimensions and pad layouts differ; therefore, PCB footprint verification is necessary before substitution in existing designs.

Q: Are there any compliance concerns when substituting the S1D for the LL4002G L0G?

A: No compliance concerns exist. Both components are RoHS3 compliant, carry MSL rating 1, and share identical ECCN and HTSUS classifications. Regulatory and environmental requirements are maintained with this substitution.

Q: Why is the LL4002G L0G listed as obsolete?

A: The LL4002G L0G is classified as obsolete by the manufacturer. The S1D from YAGEO is an active product offering equivalent electrical and mechanical specifications, providing a path for design continuity and procurement support.

Q: What parameters must be verified before substituting these components?

A: Verify reverse voltage rating (minimum 100 V), average rectified current (minimum 1 A), forward voltage drop (maximum 1.1 V @ 1 A), and package footprint compatibility with your PCB design. All electrical parameters are met by the S1D within the specified ranges.