SMBJ8.0A-TP Transient Voltage Suppressor Equivalent & Substitute Parts

Part Overview

The SMBJ8.0A-TP is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose overvoltage protection in surface-mount applications. The device features an 8V reverse standoff voltage with a 13.6V maximum clamping voltage and 44.1A peak pulse current capability in a DO-214AA (SMB) package. This part is active and in production with full RoHS3 compliance. Substitute parts are identified when electrical parameters and mechanical compatibility remain within specified tolerances across manufacturers.

Substiute Parts

SMBJ8.0A-TP

Micro Commercial CoIn Stock: 4139SMBJ8.0A-TP Datasheet

Current PartRFQ

SMBJ8.0A

MDDIn Stock: 26124SMBJ8.0A Datasheet

DirectRFQ

SMBJ8.0A

MDDIn Stock: 26124SMBJ8.0A Datasheet

DirectRFQ

SMBJ8.0A-13-F

Diodes IncorporatedIn Stock: 4504SMBJ8.0A-13-F Datasheet

DirectRFQ

SMBJ8.0A-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 13838SMBJ8.0A-E3/52 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMBJ8.0A-TP is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 8V
• Voltage - Breakdown (Min): 8.89V
• Voltage - Clamping (Max) @ Ipp: 13.6V
• Current - Peak Pulse (10/1000µs): 44.1A or higher
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA or SMB
• Mounting Type: Surface Mount
• Unidirectional Channels: 1
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

All identified substitute parts maintain these electrical and mechanical specifications within the tolerances required for direct functional replacement. Variations in operating temperature range and manufacturer-specific series designations do not affect substitution eligibility when all primary electrical parameters are met.

Parameter Comparison

Engineering Selection Recommendations

All four parts listed maintain active product status and full RoHS3 compliance. Selection among these equivalents should be based on:

• Availability and lead time requirements
• Manufacturer preference or qualification requirements
• Operating temperature range constraints (SMBJ8.0A-TP supports -55 to 175°C; MDD variant supports -50 to 150°C)
• Peak pulse current tolerance (MDD variant rated at 44.2A versus 44.1A for other manufacturers)
• Packaging and supplier device package specifications as required by procurement or assembly processes

All parts are functionally equivalent for general-purpose transient voltage suppression applications within the specified electrical parameters.

Frequently Asked Questions (FAQ)

Q: Can SMBJ8.0A (MDD) replace SMBJ8.0A-TP in all applications?

A: Yes, provided the operating temperature range of -50 to 150°C (TJ) is acceptable for your application. The SMBJ8.0A-TP supports -55 to 175°C (TJ), offering a wider temperature envelope. All other electrical and mechanical parameters are equivalent.

Q: What is the significance of the part number suffixes (-13-F, -E3/52)?

A: These suffixes denote manufacturer-specific packaging, tape configuration, or internal revision codes. They do not affect electrical performance or substitution eligibility when the base part number (SMBJ8.0A) and electrical specifications remain identical.

Q: Are all substitute parts available in the same package?

A: Yes. All parts use the DO-214AA (SMB) surface-mount package. Supplier device package designations may vary (SMB, SMB/DO-214AA, DO-214AA (SMB), DO-214AA (SMBJ)), but these refer to the same physical package.

Q: Does the 44.2A peak pulse current rating of the MDD variant affect compatibility?

A: No. The MDD variant's 44.2A rating exceeds the 44.1A specification of the original part, providing equivalent or superior performance within the same 600W power dissipation limit.

Q: Are all parts RoHS3 compliant?

A: Yes. All listed parts carry ROHS3 Compliant status with Moisture Sensitivity Level 1 (Unlimited), meeting the same environmental and regulatory requirements.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. Identical DO-214AA (SMB) package footprints and surface-mount specifications ensure mechanical and electrical interchangeability without PCB redesign.