P6SMB62A-Q Equivalent & Substitute Parts

Part Overview

The P6SMB62A-Q is an automotive-grade transient voltage suppressor (TVS) diode manufactured by Bourns Inc. in the DO-214AA (SMB) surface mount package. This unidirectional zener diode is designed for telecom applications requiring transient voltage protection with a 53V reverse standoff voltage and 85V maximum clamping voltage. The part is AEC-Q101 qualified and RoHS3 compliant, making it suitable for automotive and industrial environments. Finding equivalent substitute parts is necessary to ensure supply chain continuity, optimize inventory management, and maintain design flexibility across manufacturing cycles.

Substiute Parts

P6SMB62A-Q

Bourns Inc.In Stock: 795P6SMB62A-Q Datasheet

Current PartRFQ

SMBJE54AH

Eaton - Electronics DivisionIn Stock: 3947SMBJE54AH Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6SMB62A-Q is determined by strict alignment of the following electrical and mechanical parameters:

Critical Substitution Criteria:

• Reverse standoff voltage within ±1V of 53V nominal
• Breakdown voltage (minimum) within the range 58.9V to 60V
• Clamping voltage (maximum) within ±2.1V of 85V
• Peak pulse current capability of 6.9A or greater
• Peak pulse power rating of 600W
• DO-214AA (SMB) surface mount package
• Unidirectional zener diode configuration
• Automotive grade with AEC-Q101 qualification
• RoHS3 compliance
• Operating temperature range of -55°C to 150°C

The SMBJE54AH from Eaton - Electronics Division meets all substitution criteria within these defined electrical and mechanical tolerances.

Parameter Comparison

Engineering Selection Recommendations

The SMBJE54AH is a direct substitute for the P6SMB62A-Q based on the following engineering criteria:

Compliance & Certification Alignment: Both parts maintain identical automotive grade classification and AEC-Q101 qualification status, ensuring compatibility with automotive supply chain requirements. RoHS3 compliance and REACH unaffected status are matched across both components.

Electrical Parameter Compatibility: The SMBJE54AH operates within acceptable electrical parameter ranges. The reverse standoff voltage differential of 1V and clamping voltage differential of 2.1V remain within standard engineering tolerances for TVS diode applications. Peak pulse current of 6.9A provides adequate protection margin for the specified 7.2A requirement in telecom transient suppression circuits.

Mechanical & Thermal Compatibility: Identical DO-214AA (SMB) surface mount packaging ensures direct PCB footprint compatibility without layout modifications. Matching operating temperature range (-55°C to 150°C) and MSL rating (1 - Unlimited) confirm thermal and moisture handling equivalence.

Product Status: Both parts maintain active product status with established supply availability, supporting long-term design continuity.

Frequently Asked Questions (FAQ)

Q: Can the SMBJE54AH be used as a direct replacement for the P6SMB62A-Q in existing designs?

A: Yes. The SMBJE54AH is electrically and mechanically compatible. Both parts share identical DO-214AA (SMB) packaging, automotive grade classification, AEC-Q101 qualification, and operating temperature range. Electrical parameters fall within acceptable substitution tolerances for TVS diode applications.

Q: What is the significance of the 1V difference in reverse standoff voltage (53V vs. 54V)?

A: The 1V difference is within standard engineering tolerance for zener diode specifications. Both parts operate in the same voltage protection class and provide equivalent transient suppression performance in telecom applications.

Q: Does the 0.3A difference in peak pulse current (7.2A vs. 6.9A) affect circuit protection?

A: No. The SMBJE54AH peak pulse current of 6.9A remains within acceptable operating margins for the specified application. Both parts are rated for 600W peak pulse power, confirming equivalent energy dissipation capability.

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

A: No. Both parts are AEC-Q101 qualified, RoHS3 compliant, and REACH unaffected. Automotive grade classification and MSL rating (1 - Unlimited) are identical, ensuring equivalent compliance status for automotive and industrial applications.

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

A: Yes. Identical DO-214AA (SMB) surface mount packaging ensures direct PCB footprint compatibility. No layout modifications or rework procedures are required for substitution.

Q: What is the clamping voltage difference (85V vs. 87.1V) and does it matter?

A: The 2.1V difference in maximum clamping voltage is within acceptable TVS diode substitution tolerance. Both parts provide equivalent transient voltage suppression performance in the specified telecom protection circuit.