LL101B-7 Equivalent & Substitute Parts

Part Overview

The LL101B-7 is a Schottky diode rated for 50 V DC reverse voltage with 30 mA average rectified current, packaged in SOD-80 MiniMELF surface mount configuration. Manufactured by Vishay General Semiconductor - Diodes Division, this component is classified as obsolete. Due to its obsolete product status, equivalent and substitute parts are necessary to maintain design continuity and ensure procurement availability for new production and field service applications.

Substiute Parts

LL101B-7

Vishay General Semiconductor - Diodes DivisionIn Stock: 1054LL101B-7 Datasheet

Current PartRFQ

LL101B-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 3912LL101B-GS08 Datasheet

DirectRFQ

BAS86,115

Nexperia USA Inc.In Stock: 17099BAS86,115 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LL101B-7 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Voltage - DC Reverse (Vr) rating must equal or exceed 50 V
• Current - Average Rectified (Io) rating must equal or exceed 30 mA
• Technology type must be Schottky diode
• Operating temperature range must support 125°C maximum junction temperature

Mechanical Compatibility Requirements:

• Package / Case must be DO-213AC, MINI-MELF, or SOD-80
• Mounting type must be Surface Mount
• Supplier device package must be compatible with SOD-80 MiniMELF footprint

Compliance Requirements:

• RoHS3 Compliant status
• Automotive Grade classification
• AEC-Q101 Qualification

Substitute parts are grouped into two categories: direct equivalents from the same manufacturer (LL101B-GS08) and cross-manufacturer alternatives (BAS86,115) that meet or exceed all specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

LL101B-GS08 (Vishay General Semiconductor - Diodes Division)

The LL101B-GS08 is the primary direct equivalent for the obsolete LL101B-7. Both components share identical electrical ratings (50 V, 30 mA), matching reverse recovery time (1 ns), and equivalent reverse leakage characteristics (200 nA @ 40 V). The LL101B-GS08 maintains active product status with higher inventory availability (3,900 pieces in stock). Both parts carry Automotive Grade classification and AEC-Q101 qualification, ensuring compliance with automotive reliability standards. The LL101B-GS08 is supplied in Cut Tape and Digi-Reel packaging formats, supporting both prototype and production volume requirements. This part is the recommended first choice for direct replacement in existing designs.

BAS86,115 (Nexperia USA Inc.)

The BAS86,115 is a cross-manufacturer alternative that exceeds the electrical specifications of the LL101B-7. It provides higher current capacity (200 mA versus 30 mA), enabling use in applications requiring greater current handling. The BAS86,115 maintains the 50 V reverse voltage rating and operates within the same 125°C maximum junction temperature. Both parts use identical SOD-80 MiniMELF packaging and surface mount configuration. The BAS86,115 carries ROHS3 compliance and is supplied in Tape & Reel format with substantial inventory availability (16,998 pieces in stock). This part is suitable for designs where increased current margin or future design flexibility is required. Note that automotive grade and AEC-Q101 qualification status are not specified for the BAS86,115.

Frequently Asked Questions (FAQ)

Q: Can the LL101B-GS08 be used as a direct replacement for the LL101B-7?

A: Yes. The LL101B-GS08 is a direct equivalent with identical electrical ratings (50 V, 30 mA), matching reverse recovery time (1 ns), and equivalent reverse leakage current (200 nA @ 40 V). Both components use SOD-80 MiniMELF packaging and surface mount configuration. The LL101B-GS08 is active product with higher availability.

Q: What are the differences between the LL101B-GS08 and BAS86,115?

A: The primary difference is current capacity. The LL101B-GS08 is rated for 30 mA average rectified current, while the BAS86,115 is rated for 200 mA. Both maintain 50 V reverse voltage rating and SOD-80 MiniMELF packaging. The LL101B-GS08 has lower reverse leakage (200 nA @ 40 V) and faster reverse recovery time (1 ns) compared to the BAS86,115 (5 µA @ 40 V, 4 ns). The LL101B-GS08 carries AEC-Q101 qualification; the BAS86,115 qualification status is not specified.

Q: Are all substitute parts compatible with the original SOD-80 MiniMELF footprint?

A: Yes. All substitute parts listed (LL101B-GS08 and BAS86,115) use DO-213AC, MINI-MELF, SOD-80 packaging and are configured for surface mount assembly. Footprint compatibility is maintained across all alternatives.

Q: Which substitute part should be selected for automotive applications?

A: The LL101B-GS08 is the recommended choice for automotive applications. It carries Automotive Grade classification and AEC-Q101 qualification, matching the original LL101B-7 specifications. The BAS86,115 does not specify automotive grade or AEC-Q101 qualification status.

Q: What is the difference in forward voltage characteristics between the parts?

A: The LL101B-7 specifies 400 mV maximum forward voltage at 1 mA. The LL101B-GS08 specifies 950 mV maximum at 15 mA, and the BAS86,115 specifies 900 mV maximum at 100 mA. Forward voltage measurements are taken at different current levels, reflecting the different current ratings of each device.

Q: Can the BAS86,115 be used in place of the LL101B-7 in current-limited applications?

A: Yes. The BAS86,115 exceeds the minimum electrical requirements (50 V, 30 mA) and maintains SOD-80 MiniMELF packaging compatibility. The higher current rating (200 mA) does not prevent operation in 30 mA applications. However, the BAS86,115 has higher reverse leakage (5 µA @ 40 V) and longer reverse recovery time (4 ns) compared to the LL101B-7, which may affect circuit performance in sensitive applications.

Q: What packaging formats are available for each substitute part?

A: The LL101B-GS08 is supplied in Cut Tape (CT) and Digi-Reel format. The BAS86,115 is supplied in Tape & Reel (TR) format. Both formats support automated assembly processes for production applications.