SSB43LHE3_A/I Equivalent & Substitute Parts

Part Overview

The SSB43LHE3_A/I is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 30 V DC reverse voltage and 4 A average rectified current in a surface mount DO-214AA (SMB) package. This component 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 maintained across the same package type and performance specifications, ensuring direct interchangeability in circuit applications without design modification.

Substiute Parts

SSB43LHE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1106SSB43LHE3_A/I Datasheet

Current PartRFQ

SSB43LHE3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 80482SSB43LHE3_A/H Datasheet

Parametric EquivalentRFQ

SSB43LHE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1106SSB43LHE3_A/I Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SSB43LHE3_A/I are identified based on strict equivalence across the following critical parameters:

• Voltage Rating: DC reverse voltage of 30 V maximum
• Current Rating: Average rectified current of 4 A
• Forward Voltage Drop: 490 mV maximum at 4 A forward current
• Recovery Speed: Fast recovery characteristic ≤ 500 ns at > 200 mA
• Reverse Leakage Current: 400 µA at 30 V reverse bias
• Package Type: DO-214AA (SMB) surface mount package
• Mounting Configuration: Surface mount technology
• Temperature Range: Junction operating range of -65°C to 150°C
• Automotive Compliance: AEC-Q101 qualification and automotive grade designation
• Environmental Compliance: ROHS3 compliant, REACH unaffected status

All substitute parts maintain identical electrical performance characteristics and mechanical compatibility with the primary part number SSB43LHE3_A/I.

Parameter Comparison

Engineering Selection Recommendations

Both SSB43LHE3_A/I and SSB43LHE3_A/H are Active product status components manufactured by Vishay General Semiconductor - Diodes Division. Selection between these parts is based on inventory availability and supply chain considerations rather than electrical or mechanical differentiation.

The SSB43LHE3_A/H variant maintains 80,400 pieces in new original stock, providing superior availability for high-volume production requirements. The SSB43LHE3_A/I maintains 1,039 pieces in new original stock, suitable for lower-volume applications or prototype development.

Both parts satisfy automotive-grade requirements through AEC-Q101 qualification and maintain full compliance with ROHS3 and REACH environmental standards. The DO-214AA (SMB) surface mount package enables direct PCB integration without mechanical redesign. Operating temperature range of -65°C to 150°C junction temperature supports extended automotive environmental specifications.

Frequently Asked Questions (FAQ)

Q: Can SSB43LHE3_A/H be used as a direct replacement for SSB43LHE3_A/I?

A: Yes. Both parts are parametrically equivalent across all electrical and mechanical specifications. The suffix designation (_A/H versus _A/I) reflects manufacturing date code or tape reel configuration only, with no impact on component performance or circuit compatibility.

Q: What determines substitutability for Schottky rectifier diodes in the DO-214AA package?

A: Substitutability is determined by equivalence in DC reverse voltage rating, average rectified current capacity, forward voltage drop at rated current, recovery speed characteristics, reverse leakage current, and operating temperature range. All these parameters are identical between SSB43LHE3_A/I and SSB43LHE3_A/H.

Q: Are there any compliance differences between the substitute parts?

A: No. Both SSB43LHE3_A/I and SSB43LHE3_A/H carry identical automotive-grade designation, AEC-Q101 qualification, ROHS3 compliance status, and REACH unaffected classification. Moisture sensitivity level is 1 (Unlimited) for both variants.

Q: What is the significance of the DO-214AA (SMB) package designation?

A: DO-214AA, commonly referred to as SMB (Surface Mount Body), is a standardized surface mount package for rectifier diodes. This package type ensures mechanical and electrical compatibility across all substitute parts listed, enabling direct PCB footprint interchangeability without layout modification.

Q: How do the electrical parameters of these Schottky diodes compare to standard rectifier diodes?

A: Schottky technology in these parts delivers fast recovery characteristics (≤ 500 ns) and lower forward voltage drop (490 mV at 4 A) compared to conventional silicon rectifiers. These characteristics are maintained identically across both SSB43LHE3_A/I and SSB43LHE3_A/H variants.

Q: What inventory considerations apply when selecting between substitute parts?

A: SSB43LHE3_A/H provides significantly higher stock availability (80,400 pieces) compared to SSB43LHE3_A/I (1,039 pieces). For production schedules requiring extended lead times or high-volume procurement, SSB43LHE3_A/H is the preferred selection. Both parts maintain Active product status with ongoing manufacturer support.