SMBJ36A-HRA Equivalent & Substitute Parts

Part Overview

The SMBJ36A-HRA is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This surface-mount component operates with a 36V reverse standoff voltage and provides 58.1V maximum clamping voltage at peak pulse current. The part is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

SMBJ36A-HRA

Littelfuse Inc.In Stock: 889SMBJ36A-HRA Datasheet

Current PartRFQ

SMBJ36A

EVVO SemiIn Stock: 122275SMBJ36A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMBJ36A-HRA is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 36V (Typ)
• Voltage - Breakdown: 40V (Min)
• Voltage - Clamping: 58.1V (Max) @ Ipp
• Current - Peak Pulse: 10.4A (10/1000µs)
• Power - Peak Pulse: 600W
• Operating Temperature Range: -65°C to 150°C (TJ)
• Type: Zener, Unidirectional
• Mounting Type: Surface Mount
• RoHS Compliance: ROHS3 Compliant

The SMBJ36A manufactured by EVVO Semi meets all electrical performance criteria and maintains active product status with equivalent compliance certifications. Package variations (DO-214AA vs. DO-214AC/SMA) are acceptable provided PCB footprint compatibility is verified for the specific application.

Parameter Comparison

Engineering Selection Recommendations

Both the SMBJ36A-HRA (Littelfuse Inc.) and SMBJ36A (EVVO Semi) are active production components with ROHS3 compliance and equivalent electrical specifications. Selection between these parts should be based on:

• PCB footprint compatibility: DO-214AA (SMB) versus DO-214AC (SMA) package geometry
• Supply chain availability and lead time requirements
• Packaging format preference: Tape & Reel (TR) versus Cut Tape (CT) & Digi-Reel®
• Inventory levels and procurement cost considerations

Both parts satisfy the electrical and thermal requirements for general-purpose transient voltage suppression applications within the specified operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can SMBJ36A (EVVO Semi) directly replace SMBJ36A-HRA (Littelfuse) on existing PCBs?

A: Direct replacement depends on package compatibility. The SMBJ36A-HRA uses DO-214AA (SMB) packaging, while the EVVO Semi variant uses DO-214AC (SMA) packaging. Both are surface-mount packages with similar footprints, but PCB layout verification is required to confirm pad alignment and spacing compatibility.

Q: Are the electrical performance characteristics identical between these parts?

A: Yes. Both parts share identical specifications for reverse standoff voltage (36V), breakdown voltage (40V minimum), clamping voltage (58.1V maximum), peak pulse current (10.4A), and peak pulse power (600W). Operating temperature range and RoHS compliance are also equivalent.

Q: What is the significance of the packaging difference between DO-214AA and DO-214AC?

A: DO-214AA (SMB) and DO-214AC (SMA) are distinct surface-mount package outlines with different physical dimensions. While both are industry-standard TVS diode packages, they require different PCB footprints. Verify your design specifications before substitution.

Q: Are both parts suitable for the same applications?

A: Yes. Both the SMBJ36A-HRA and SMBJ36A are classified for general-purpose transient voltage suppression with identical electrical performance parameters. Application suitability is determined by the 36V standoff voltage and 58.1V clamping voltage specifications, which are equivalent across both parts.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant and carry REACH Unaffected status. ECCN classification is EAR99 for both variants, and HTSUS code is 8541.10.0080.