LL4154-M-18 Equivalent & Substitute Parts

Part Overview

The LL4154-M-18 is a general-purpose fast recovery rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This component operates at 35 V DC reverse voltage with 300 mA average rectified current in a surface mount SOD-80 MiniMELF package. The device is classified as Active product status and carries automotive-grade qualification under AEC-Q101 standard. Substitute parts are identified to address inventory availability, supply chain continuity, and equivalent functional performance in applications requiring this diode specification.

Substiute Parts

LL4154-M-18

Vishay General Semiconductor - Diodes DivisionIn Stock: 1106LL4154-M-18 Datasheet

Current PartRFQ

LL4154-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 25799LL4154-GS08 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LL4154-M-18 is determined by electrical and mechanical parameter equivalence. The critical parameters that define substitutability are:

• Voltage - DC Reverse (Vr) (Max): 35 V
• Current - Average Rectified (Io): 300 mA
• Voltage - Forward (Vf) (Max) @ If: 1 V @ 30 mA
• Reverse Recovery Time (trr): 4 ns
• Current - Reverse Leakage @ Vr: 100 nA @ 25 V
• Capacitance @ Vr, F: 4 pF @ 0V, 1MHz
• Package / Case: DO-213AC, MINI-MELF, SOD-80
• Mounting Type: Surface Mount
• Grade: Automotive
• Qualification: AEC-Q101
• Operating Temperature - Junction (Max): 175°C

The LL4154-GS08 meets all specified electrical and mechanical parameters, enabling direct substitution in applications requiring the LL4154-M-18 diode specification.

Parameter Comparison

Engineering Selection Recommendations

The LL4154-GS08 is a parametric equivalent to the LL4154-M-18 and functions as a direct substitute. Both components share identical electrical specifications, mechanical packaging, and regulatory compliance status. Both devices maintain Active product status and carry AEC-Q101 automotive qualification. The LL4154-GS08 demonstrates higher inventory availability (25,756 pcs) compared to the LL4154-M-18 (1,094 pcs), supporting supply chain flexibility. Both parts comply with ROHS3 and REACH requirements, with MSL rating of 1 (Unlimited), indicating no moisture sensitivity constraints during storage and handling.

Frequently Asked Questions (FAQ)

Q: Can the LL4154-GS08 replace the LL4154-M-18 in existing designs?

A: Yes. The LL4154-GS08 is a parametric equivalent with identical electrical and mechanical specifications. All critical parameters including reverse voltage, rectified current, forward voltage, recovery time, leakage current, and capacitance match exactly. Both components use the same SOD-80 MiniMELF package and surface mount configuration.

Q: Are there differences in automotive qualification between these parts?

A: No. Both the LL4154-M-18 and LL4154-GS08 carry AEC-Q101 automotive-grade qualification and are classified as Automotive grade components. Regulatory compliance, RoHS status, and REACH status are identical.

Q: What is the significance of the different part number suffixes (-M-18 vs -GS08)?

A: The suffix designates the manufacturing batch or tape reel configuration. The electrical and mechanical specifications remain identical. Both parts are manufactured by Vishay General Semiconductor - Diodes Division and share the same base product number LL4154.

Q: Are there any temperature or thermal performance differences?

A: No. Both components specify a maximum junction operating temperature of 175°C. Thermal characteristics are equivalent.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. Both components use identical SOD-80 MiniMELF surface mount packaging with the same footprint and solder pad configuration. No PCB layout modifications are required for substitution.

Q: What is the moisture sensitivity classification for these diodes?

A: Both parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity constraints. Standard storage and handling procedures apply without special desiccant or humidity control requirements.