LLSD101A-13 Equivalent & Substitute Parts

Part Overview

The LLSD101A-13 is a Schottky diode manufactured by Diodes Incorporated, rated for 60 V DC reverse voltage with 15 mA average rectified current. The device is packaged in a Surface Mount Mini MELF (DO-213AC, SOD-80) configuration and is designed for small signal applications with reverse recovery time of 1 ns.

This part is classified as Obsolete. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this component.

Substiute Parts

LLSD101A-13

Diodes IncorporatedIn Stock: 716LLSD101A-13 Datasheet

Current PartRFQ

LL101A-GS18

Vishay General Semiconductor - Diodes DivisionIn Stock: 8131LL101A-GS18 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LLSD101A-13 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Voltage - DC Reverse (Vr) (Max): Must equal or exceed 60 V
• Technology: Must be Schottky diode
• Reverse Recovery Time (trr): Must equal or be faster than 1 ns
• Current - Reverse Leakage @ Vr: Must not exceed 200 nA @ 50 V
• Voltage - Forward (Vf) (Max) @ If: Must not exceed 1 V @ 15 mA
• Capacitance @ Vr, F: Must not exceed 2 pF @ 0V, 1MHz

Mechanical Compatibility Criteria:

• Package / Case: Must be DO-213AC, MINI-MELF, or SOD-80
• Mounting Type: Must be Surface Mount

Operational Criteria:

• Operating Temperature - Junction: Must support the required temperature range

Substitute parts must satisfy all electrical parameters at or above the performance level of the LLSD101A-13 and maintain identical mechanical packaging to ensure direct board-level compatibility without layout modifications.

Parameter Comparison

Engineering Selection Recommendations

The LL101A-GS18 from Vishay General Semiconductor - Diodes Division is a direct electrical and mechanical substitute for the obsolete LLSD101A-13.

Substitution Basis:

The LL101A-GS18 meets or exceeds all critical electrical parameters of the LLSD101A-13. The substitute part provides equal reverse voltage rating (60 V), identical forward voltage characteristics (1 V @ 15 mA), matching reverse recovery time (1 ns), and equivalent reverse leakage current (200 nA @ 50 V). The current rating of the substitute (30 mA) exceeds the original specification (15 mA), providing additional design margin without introducing incompatibility.

Both parts share identical packaging (DO-213AC, MINI-MELF, SOD-80) and mounting type (Surface Mount), enabling direct board-level replacement without layout modifications.

Compliance Status:

Both the original part and substitute are ROHS3 Compliant and carry MSL rating of 1 (Unlimited). The LL101A-GS18 is classified as Active product status, ensuring ongoing availability and supply chain support. The substitute carries AEC-Q101 automotive qualification, indicating enhanced reliability screening and process controls.

Temperature Consideration:

The LL101A-GS18 specifies a maximum junction temperature of 125°C, whereas the LLSD101A-13 specifies an operating range of -55°C to 125°C. For applications requiring operation below ambient temperature or in cold environments, thermal performance characteristics must be evaluated against specific application requirements.

Frequently Asked Questions (FAQ)

Q: Can the LL101A-GS18 be used as a direct replacement for the LLSD101A-13 in existing designs?

A: Yes. The LL101A-GS18 is electrically and mechanically compatible with the LLSD101A-13. Both parts share identical package specifications (DO-213AC, MINI-MELF, SOD-80), forward voltage characteristics, reverse recovery time, and reverse leakage current. No circuit modifications or board layout changes are required for substitution.

Q: What is the primary difference between these two parts?

A: The LL101A-GS18 has a higher average rectified current rating (30 mA) compared to the LLSD101A-13 (15 mA). This provides additional current capacity and design margin. The substitute is also in active production status, whereas the original part is obsolete.

Q: Are there any temperature-related limitations when substituting the LL101A-GS18?

A: The LL101A-GS18 specifies a maximum junction temperature of 125°C without a stated minimum temperature specification. The original LLSD101A-13 specifies an operating range of -55°C to 125°C. For applications requiring operation at temperatures below 0°C, the thermal performance of the substitute should be verified against specific application conditions.

Q: Do both parts have the same RoHS and moisture sensitivity ratings?

A: Yes. Both the LLSD101A-13 and LL101A-GS18 are ROHS3 Compliant and carry Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage and handling.

Q: What is the packaging format of the LL101A-GS18?

A: The LL101A-GS18 is supplied in Tape & Reel (TR) packaging format. The component itself is housed in a DO-213AC, MINI-MELF, SOD-80 Surface Mount package, identical to the LLSD101A-13.

Q: Is the LL101A-GS18 suitable for automotive applications?

A: Yes. The LL101A-GS18 carries AEC-Q101 automotive qualification, indicating compliance with automotive reliability and quality standards. This qualification is not specified for the original LLSD101A-13.

Q: What is the reverse voltage rating for both parts?

A: Both the LLSD101A-13 and LL101A-GS18 are rated for 60 V DC reverse voltage (Vr). This rating is identical across both parts.

Q: Are there any REACH or regulatory compliance differences between the two parts?

A: The LLSD101A-13 is listed as REACH Affected, while the LL101A-GS18 is listed as REACH Unaffected. Both parts carry EAR99 ECCN classification and are assigned the same HTSUS code (8541.10.0070).