LL46-GS18 Equivalent & Substitute Parts

Part Overview

The LL46-GS18 is a Schottky diode rated for 100 V DC reverse voltage with 150 mA average rectified current, packaged in SOD-80 MiniMELF surface mount configuration. Manufactured by Vishay General Semiconductor - Diodes Division, this component is qualified to AEC-Q101 automotive standards and maintains active product status. Substitute parts are identified to address packaging format availability, supply chain requirements, or alternative manufacturer sourcing while maintaining electrical and mechanical compatibility within specified parameters.

Substiute Parts

LL46-GS18

Vishay General Semiconductor - Diodes DivisionIn Stock: 7283LL46-GS18 Datasheet

Current PartRFQ

LL46-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 5493LL46-GS08 Datasheet

Parametric EquivalentRFQ

TMMBAT46FILM

STMicroelectronicsIn Stock: 2927TMMBAT46FILM Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LL46-GS18 are qualified based on electrical parameter equivalence and mechanical compatibility. The substitution logic is structured as follows:

Parametric Equivalent Substitutes maintain identical electrical specifications across all critical parameters: 100 V reverse voltage rating, 150 mA average rectified current, 5 µA reverse leakage current at 75 V, and 10 pF capacitance at 0 V and 1 MHz. These parts differ only in packaging format (Cut Tape & Digi-Reel versus Tape & Reel) while retaining the same SOD-80 MiniMELF physical package and surface mount mounting type. Parametric equivalents include LL46-GS08.

Upgrade Substitutes maintain core electrical ratings (100 V, 150 mA, 5 µA reverse leakage, 10 pF capacitance) and surface mount configuration but originate from alternative manufacturers. The TMMBAT46FILM from STMicroelectronics operates within the same electrical envelope and qualifies under identical compliance standards. Forward voltage characteristics differ at specified test conditions (450 mV @ 10 mA versus 1 V @ 250 mA), reflecting manufacturer-specific measurement protocols for the same diode technology class. Operating temperature range extends to −65°C minimum, providing broader thermal coverage than the LL46-GS18 specification.

Parameter Comparison

Engineering Selection Recommendations

LL46-GS08 serves as the primary parametric equivalent substitute for LL46-GS18. Both components are manufactured by Vishay General Semiconductor - Diodes Division, maintain identical electrical specifications across all critical parameters, and carry AEC-Q101 automotive qualification. The distinction between these parts is packaging format: LL46-GS18 is supplied in Tape & Reel (TR) configuration, while LL46-GS08 is supplied in Cut Tape (CT) & Digi-Reel® format. Selection between these variants depends on assembly line requirements and tape format compatibility. Both parts maintain active product status and ROHS3 compliance.

TMMBAT46FILM from STMicroelectronics qualifies as an upgrade substitute when alternative manufacturer sourcing is required or when extended low-temperature operation to −65°C is necessary. This part maintains the core electrical ratings of 100 V reverse voltage, 150 mA average rectified current, and identical reverse leakage and capacitance specifications. The TMMBAT46FILM operates within the same Schottky diode technology class and meets ROHS3 compliance and MSL 1 requirements. Forward voltage measurement conditions differ from the LL46-GS18 specification, reflecting standard manufacturer test protocols rather than functional incompatibility. The TMMBAT46FILM does not carry explicit automotive grade or AEC-Q101 qualification designation in the provided specifications.

Selection of substitute parts should be based on packaging format availability, supply chain requirements, and thermal operating range needs. All three parts are suitable for surface mount assembly in SOD-80 MiniMELF or equivalent Mini MELF configurations.

Frequently Asked Questions (FAQ)

Q: Can LL46-GS08 be used as a direct replacement for LL46-GS18 in production assembly?

A: Yes. LL46-GS08 maintains identical electrical specifications and automotive qualification. The difference is packaging format: LL46-GS18 uses Tape & Reel (TR) while LL46-GS08 uses Cut Tape (CT) & Digi-Reel®. Assembly equipment compatibility with the tape format determines suitability for direct substitution.

Q: What is the difference between the forward voltage specifications for LL46-GS18 and TMMBAT46FILM?

A: LL46-GS18 specifies 1 V maximum forward voltage at 250 mA test current, while TMMBAT46FILM specifies 450 mV maximum at 10 mA test current. These represent different measurement conditions applied by each manufacturer. Both values are consistent with Schottky diode characteristics and do not indicate functional incompatibility.

Q: Is TMMBAT46FILM suitable for automotive applications?

A: TMMBAT46FILM maintains the same electrical specifications and compliance standards (ROHS3, MSL 1) as the LL46-GS18. However, the provided specifications do not include explicit automotive grade or AEC-Q101 qualification designation for the TMMBAT46FILM. Verification of automotive qualification status with STMicroelectronics is necessary for applications requiring automotive certification.

Q: What is the physical package difference between LL46-GS18 and TMMBAT46FILM?

A: Both parts use Mini MELF surface mount packages. LL46-GS18 is specified as DO-213AC (MINI-MELF, SOD-80), while TMMBAT46FILM is specified as DO-213AA (Glass) Mini MELF. These designations reflect minor variations in package construction and material composition. Both are compatible with standard surface mount assembly processes for MiniMELF components.

Q: Can TMMBAT46FILM be used in applications requiring operation below 0°C?

A: Yes. TMMBAT46FILM specifies an operating temperature range of −65°C to 125°C, extending below the LL46-GS18 maximum junction temperature specification of 125°C. This provides broader thermal coverage for low-temperature applications.

Q: Are all three parts RoHS compliant?

A: Yes. LL46-GS18, LL46-GS08, and TMMBAT46FILM are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level.