P6SMB68A-Q Equivalent & Substitute Parts

Part Overview

The P6SMB68A-Q is an automotive-grade unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Bourns Inc. in the DO-214AA (SMB) surface mount package. This component is designed for telecom applications requiring transient voltage protection with a reverse standoff voltage of 58.1V and peak pulse current handling of 6.6A. The part maintains Active product status and carries AEC-Q101 automotive qualification with ROHS3 compliance.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter ranges, ensuring functional interchangeability in circuit protection applications.

Substiute Parts

P6SMB68A-Q

Bourns Inc.In Stock: 771P6SMB68A-Q Datasheet

Current PartRFQ

SMBJE58AH

Eaton - Electronics DivisionIn Stock: 4218SMBJE58AH Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P6SMB68A-Q is determined by strict alignment of the following critical parameters:

Electrical Parameters:

• Voltage - Reverse Standoff (Typ): 58V nominal range
• Voltage - Breakdown (Min): 64.4V minimum or higher
• Voltage - Clamping (Max) @ Ipp: 92-93.6V range
• Current - Peak Pulse (10/1000µs): 6.4A minimum
• Power - Peak Pulse: 600W

Mechanical & Compliance Parameters:

• Package / Case: DO-214AA (SMB) surface mount
• Mounting Type: Surface Mount
• Operating Temperature: -55°C to 150°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The SMBJE58AH from Eaton - Electronics Division meets all substitution criteria within these parameter boundaries.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: P6SMB68A-Q

The P6SMB68A-Q maintains Active product status with full AEC-Q101 automotive qualification and ROHS3 compliance. Current inventory of 759 pieces supports immediate procurement for production applications.

Substitute Part: SMBJE58AH

The SMBJE58AH from Eaton - Electronics Division is functionally equivalent across all critical electrical and mechanical parameters. This part carries identical automotive grade certification (AEC-Q101) and ROHS3 compliance status. The clamping voltage specification of 93.6V remains within acceptable tolerance relative to the 92V maximum of the primary part. Peak pulse current of 6.4A meets the minimum requirement for 6.6A applications. Inventory availability of 4180 pieces provides extended supply security.

Both parts are unidirectional TVS diodes in DO-214AA surface mount packaging suitable for telecom transient protection circuits operating across the -55°C to 150°C temperature range.

Frequently Asked Questions (FAQ)

Q: Can SMBJE58AH be used as a direct replacement for P6SMB68A-Q in existing designs?

A: Yes. Both parts share identical package geometry (DO-214AA/SMB), mounting type (surface mount), operating temperature range (-55°C to 150°C), and automotive qualification (AEC-Q101). Electrical parameters fall within equivalent ranges: reverse standoff voltage 58V/58.1V, breakdown voltage 64.4V/64.6V, and peak pulse current 6.4A/6.6A.

Q: What is the difference in clamping voltage between these parts?

A: The P6SMB68A-Q specifies a maximum clamping voltage of 92V at peak pulse current, while the SMBJE58AH specifies 93.6V. This 1.6V difference remains within normal design tolerance for transient voltage suppression applications and does not affect functional interchangeability.

Q: Are both parts compliant with automotive standards?

A: Yes. Both the P6SMB68A-Q and SMBJE58AH carry AEC-Q101 automotive qualification and ROHS3 compliance certification. Moisture sensitivity level is rated 1 (Unlimited) for both parts.

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

A: DO-214AA is the industry standard surface mount package for small signal diodes and TVS devices, commonly referred to as SMB. Both substitute parts use this identical package, ensuring mechanical and thermal compatibility on printed circuit boards without layout modifications.

Q: Can these parts be used interchangeably in telecom protection circuits?

A: Yes. Both parts are specified for telecom applications with identical power dissipation capability (600W peak pulse) and equivalent voltage protection characteristics. The unidirectional channel configuration (1 channel) is identical for both parts.