SMBJ6.5A-HR Transient Voltage Suppressor Equivalent & Substitute Parts

Part Overview

The SMBJ6.5A-HR is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component operates with a 6.5V reverse standoff voltage and provides 11.2V maximum clamping voltage at peak pulse current, delivering 600W peak pulse power dissipation in a DO-214AA (SMB) package. The part is active in production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified based on matching electrical performance characteristics and mechanical compatibility within the TVS diode category, enabling design flexibility and supply chain alternatives.

Substiute Parts

SMBJ6.5A-HR

Littelfuse Inc.In Stock: 1198SMBJ6.5A-HR Datasheet

Current PartRFQ

SMBJ6.5A

Taiwan Semiconductor CorporationIn Stock: 18060SMBJ6.5A Datasheet

DirectRFQ

SMBJ6.5A-13-F

Diodes IncorporatedIn Stock: 2070SMBJ6.5A-13-F Datasheet

DirectRFQ

SMBJ6.5A-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 1181SMBJ6.5A-E3/52 Datasheet

DirectRFQ

SMBJ6V5A

Taiwan Semiconductor CorporationIn Stock: 6130SMBJ6V5A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ6.5A-HR are qualified based on the following electrical and mechanical criteria:

Critical Matching Parameters:

• Voltage - Reverse Standoff: 6.5V
• Voltage - Clamping (Max) @ Ipp: 11.2V
• Voltage - Breakdown (Min): 7.22V
• Package / Case: DO-214AA or SMB equivalent
• Mounting Type: Surface Mount
• Power - Peak Pulse: 600W
• Type: Zener, Unidirectional

Acceptable Variation:

• Current - Peak Pulse (10/1000µs): 53.6A to 56A (within 5% tolerance)
• Operating Temperature Range: -55°C to -65°C minimum acceptable
• Packaging format: Tape & Reel (TR), Cut Tape (CT), or equivalent

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring regulatory and environmental compatibility.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain functional equivalence to the SMBJ6.5A-HR across critical electrical parameters: 6.5V reverse standoff voltage, 11.2V clamping voltage, and 600W peak pulse power rating. All parts are active in production status with ROHS3 compliance certification.

SMBJ6.5A (Taiwan Semiconductor Corporation): Functionally equivalent with peak pulse current of 56A, representing a 4.5% increase over the main part specification. Operating temperature minimum of -55°C is acceptable for most general-purpose applications.

SMBJ6.5A-13-F (Diodes Incorporated): Direct electrical equivalent with 53.6A peak pulse current matching the main part specification. Packaged in Tape & Reel format.

SMBJ6.5A-E3/52 (Vishay General Semiconductor): Direct electrical equivalent with 53.6A peak pulse current. Supplied under the TransZorb® product line in Cut Tape and Digi-Reel® packaging.

SMBJ6V5A (Taiwan Semiconductor Corporation): Direct electrical equivalent with 53.6A peak pulse current. Supplied in Cut Tape and Digi-Reel® packaging format.

Selection among these alternatives depends on packaging requirements, supplier availability, and procurement lead times. All parts satisfy the electrical and environmental specifications of the SMBJ6.5A-HR.

Frequently Asked Questions (FAQ)

Q: What electrical parameters determine substitution compatibility for the SMBJ6.5A-HR?

A: The primary electrical parameters are reverse standoff voltage (6.5V), clamping voltage (11.2V), and peak pulse power (600W). Peak pulse current tolerance extends from 53.6A to 56A. All substitute parts maintain these specifications within acceptable engineering margins.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts use the DO-214AA (SMB) package, which defines identical mechanical dimensions and pin configuration. PCB layout and footprint remain unchanged during substitution.

Q: Does the operating temperature range difference affect substitution suitability?

A: The SMBJ6.5A-HR specifies -65°C to 150°C, while substitute parts specify -55°C to 150°C. For applications requiring operation below -55°C, the SMBJ6.5A-HR is required. For standard industrial and commercial temperature ranges, substitute parts are suitable.

Q: What is the significance of different packaging formats (Tape & Reel, Cut Tape, Digi-Reel)?

A: Packaging format affects supply chain logistics and automated assembly processes but does not alter electrical performance or mechanical compatibility. Selection depends on manufacturing equipment and procurement preferences.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification and MSL 1 (unlimited) moisture sensitivity rating, matching the environmental and regulatory status of the SMBJ6.5A-HR.

Q: Can the SMBJ6.5A with 56A peak pulse current replace the SMBJ6.5A-HR with 53.6A?

A: Yes. The 56A specification represents a 4.5% increase in peak pulse current capability, providing equivalent or superior performance for the same voltage protection function. This is within acceptable engineering tolerance for TVS diode substitution.