SMBJ8.0AE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMBJ8.0AE3/TR13 is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Microchip Technology. This surface mount component operates in the 8V reverse standoff voltage class and is designed for general-purpose transient voltage suppression applications. The device is rated for 44.1A peak pulse current with a 13.6V maximum clamping voltage and 600W peak pulse power dissipation. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are necessary when the primary manufacturer part becomes unavailable, when alternative sourcing is required for supply chain optimization, or when design flexibility across multiple qualified suppliers is needed.

Substiute Parts

SMBJ8.0AE3/TR13

Microchip TechnologyIn Stock: 34387SMBJ8.0AE3/TR13 Datasheet

Current PartRFQ

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

SMBJ8.0A-TP

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

DirectRFQ

SMBJ8.0A

MDDIn Stock: 26124SMBJ8.0A Datasheet

SimilarRFQ

SMBJ8.0A

MDDIn Stock: 26124SMBJ8.0A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ8.0AE3/TR13 are qualified based on electrical and mechanical parameter equivalence. The critical parameters that determine substitutability are:

Electrical Parameters:

• Voltage - Reverse Standoff (Typ): 8V
• Voltage - Breakdown (Min): 8.89V
• Voltage - Clamping (Max) @ Ipp: 13.6V
• Current - Peak Pulse (10/1000µs): 44.1A (±0.1A tolerance acceptable)
• Power - Peak Pulse: 600W

Mechanical Parameters:

• Package / Case: DO-214AA or SMB equivalent
• Mounting Type: Surface Mount
• Unidirectional Channels: 1
• Type: Zener

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

All substitute parts listed maintain identical electrical performance specifications and package compatibility. Operating temperature ranges may vary between manufacturers but do not affect functional substitutability for general-purpose applications.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts are functionally equivalent to the SMBJ8.0AE3/TR13 based on electrical specifications and mechanical compatibility. Selection among these alternatives should be based on the following factors:

Direct Equivalents (Highest Compatibility):

• SMBJ8.0A-13-F (Diodes Incorporated)
• SMBJ8.0A-E3/52 (Vishay General Semiconductor - Diodes Division)
• SMBJ8.0A-TP (Micro Commercial Co)

These three parts maintain identical electrical parameters and package specifications. All are ROHS3 compliant with MSL 1 rating. Operating temperature ranges are -55°C to 150°C, which covers the majority of general-purpose applications. The Micro Commercial Co variant (SMBJ8.0A-TP) extends the upper operating temperature to 175°C.

Similar Alternative (Minor Parameter Variance):

• SMBJ8.0A (MDD)

This part exhibits a peak pulse current specification of 44.2A, representing a 0.1A variance from the primary specification. This variance is within typical manufacturing tolerance for this device class and does not affect functional substitutability. Operating temperature range is -50°C to 150°C.

All substitute parts carry active product status and maintain compliance with ROHS3 and REACH requirements. Selection should prioritize availability, lead time, and cost considerations within your supply chain.

Frequently Asked Questions (FAQ)

Q: Can SMBJ8.0A-13-F from Diodes Incorporated be used as a direct replacement for SMBJ8.0AE3/TR13?

A: Yes. The SMBJ8.0A-13-F maintains identical electrical specifications including 8V reverse standoff voltage, 13.6V clamping voltage, and 44.1A peak pulse current. Both devices use the DO-214AA (SMB) package and are surface mount compatible. ROHS3 compliance and MSL 1 rating are equivalent.

Q: What is the difference between the Vishay SMBJ8.0A-E3/52 and the Microchip SMBJ8.0AE3/TR13?

A: The electrical specifications are identical. Both devices are rated for 8V reverse standoff, 13.6V clamping, and 44.1A peak pulse current. The primary difference is the manufacturer. Vishay's part operates from -55°C to 150°C, while Microchip's extends to -65°C minimum. For general-purpose applications, this temperature difference is not significant.

Q: Is the MDD SMBJ8.0A suitable as a substitute despite the 44.2A peak pulse current specification?

A: Yes. The 44.2A specification represents a 0.1A variance from the 44.1A primary specification. This falls within acceptable manufacturing tolerance for TVS diodes in this class and does not affect functional performance. All other electrical and mechanical parameters are equivalent.

Q: Do all substitute parts use the same DO-214AA package?

A: Yes. All listed substitute parts use the DO-214AA package, also designated as SMB. This ensures mechanical and electrical compatibility with the original SMBJ8.0AE3/TR13 in PCB layouts and assembly processes.

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

A: No. All substitute parts listed are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the primary part. All are REACH unaffected and carry EAR99 ECCN classification.

Q: Which substitute part has the widest operating temperature range?

A: The Micro Commercial Co SMBJ8.0A-TP operates from -55°C to 175°C, providing the highest upper temperature limit. The Microchip SMBJ8.0AE3/TR13 provides the lowest minimum temperature at -65°C. Selection should be based on specific application temperature requirements.

Q: Can these parts be used interchangeably in existing designs without PCB modification?

A: Yes. All substitute parts use identical DO-214AA (SMB) package dimensions and pinout. No PCB layout changes are required for substitution.