LS4448GS18 Equivalent & Substitute Parts

Part Overview

The LS4448GS18 is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at 75 V DC reverse voltage with 150 mA average rectified current in a SOD-80 QuadroMELF package. The device is classified as Active product status and carries automotive-grade qualification under AEC-Q101 standard. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, inventory management, or supply chain continuity while maintaining identical functional performance and compliance requirements.

Substiute Parts

LS4448GS18

Vishay General Semiconductor - Diodes DivisionIn Stock: 9812LS4448GS18 Datasheet

Current PartRFQ

LS4448GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 20923LS4448GS08 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LS4448GS18 are identified based on strict equivalence across all critical electrical and mechanical parameters. The substitution logic requires matching the following key parameters:

• Voltage - DC Reverse (Vr) (Max): 75 V
• Current - Average Rectified (Io): 150 mA
• Voltage - Forward (Vf) (Max) @ If: 1 V @ 100 mA
• Reverse Recovery Time (trr): 8 ns
• Current - Reverse Leakage @ Vr: 25 nA @ 20 V
• Capacitance @ Vr, F: 4 pF @ 0V, 1MHz
• Package / Case: SOD-80 Variant
• Mounting Type: Surface Mount
• Operating Temperature - Junction (Max): 175°C
• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes for the LS4448GS18 in applications requiring identical electrical performance and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The LS4448GS08 is a direct parametric equivalent to the LS4448GS18. Both components share identical electrical specifications, package configuration, and compliance certifications. Selection between these parts is based on availability and supply chain requirements rather than functional differences.

Both parts maintain Active product status and carry full automotive-grade qualification under AEC-Q101 standard. Both are ROHS3 compliant and carry unlimited moisture sensitivity level (MSL 1), indicating no special storage or handling requirements beyond standard component practices.

The LS4448GS08 currently maintains higher inventory availability (20,879 pieces) compared to the LS4448GS18 (9,750 pieces), making it suitable for applications where supply continuity is a consideration. No design modifications, circuit re-evaluation, or performance testing are required when substituting between these parts.

Frequently Asked Questions (FAQ)

Q: Can LS4448GS08 be used as a direct replacement for LS4448GS18?

A: Yes. The LS4448GS08 is a parametric equivalent with identical electrical characteristics, package type, and compliance certifications. No circuit modifications are required.

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

A: No. Both parts carry identical automotive-grade classification and AEC-Q101 qualification. Both are suitable for automotive applications without additional qualification steps.

Q: Do these parts require different PCB footprints?

A: No. Both parts use the SOD-80 QuadroMELF package variant and are mounted as surface mount components. PCB layout and footprint design remain unchanged.

Q: What is the difference between LS4448GS18 and LS4448GS08 part numbers?

A: The part numbers differ in their suffix designation (GS18 versus GS08), but this distinction does not reflect functional or electrical differences. Both parts are manufactured by Vishay General Semiconductor - Diodes Division and meet identical specifications.

Q: Are moisture sensitivity or storage requirements different between these parts?

A: No. Both parts carry MSL 1 (Unlimited) rating, indicating no special moisture control or storage conditions are required beyond standard component handling practices.

Q: Can these parts be mixed in the same production batch?

A: Yes. Since both parts are parametric equivalents with identical electrical performance and package configuration, they can be used interchangeably within the same circuit design and production environment.