P6SMBJ16 Equivalent & Substitute Parts

Part Overview

The P6SMBJ16 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse, housed in a DO-214AA (SMB) surface mount package. This component is designed for general-purpose transient voltage suppression applications with a reverse standoff voltage of 13.6V and peak pulse power rating of 600W. The part is currently listed as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement.

Substiute Parts

P6SMBJ16

LittelfuseIn Stock: 1757P6SMBJ16 Datasheet

Current PartRFQ

P6SMB16A

Eaton - Electronics DivisionIn Stock: 43486P6SMB16A Datasheet

MFR RecommendedRFQ

SMBJP6KE16A-TP

Micro Commercial CoIn Stock: 6832SMBJP6KE16A-TP Datasheet

DirectRFQ

P6SMB16A

Eaton - Electronics DivisionIn Stock: 43486P6SMB16A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P6SMBJ16 is determined by the following critical parameters:

• Reverse Standoff Voltage: Must be 13.6V (typical)
• Peak Pulse Current: Must be 27.1A at 10/1000µs pulse width
• Peak Pulse Power: Must be 600W
• Package / Case: Must be DO-214AA or SMB equivalent
• Mounting Type: Must be Surface Mount
• Unidirectional Channels: Must be 1
• Type: Must be Zener

All identified substitute parts meet these core electrical and mechanical requirements, ensuring functional compatibility in the original application circuit.

Parameter Comparison

Engineering Selection Recommendations

P6SMB16A (Eaton - Electronics Division) is the manufacturer-recommended substitute. This part maintains identical reverse standoff voltage, peak pulse current, and power ratings. The clamping voltage is marginally lower at 22.5V compared to 23.63V on the original, providing enhanced transient suppression. The part is in active production status with RoHS compliance certification and substantial inventory availability (43,380 pcs). Operating temperature range matches the original specification at -55°C to 150°C.

SMBJP6KE16A-TP (Micro Commercial Co) is a direct functional equivalent with identical electrical performance parameters. This part offers an extended operating temperature range to 175°C, providing additional thermal margin for demanding applications. ROHS3 compliance and REACH unaffected status are confirmed. Inventory availability is adequate at 6,822 pcs.

Both substitute parts are suitable for direct replacement in the original P6SMBJ16 application. Selection between them should be based on procurement availability, lead time requirements, and thermal operating environment specifications.

Frequently Asked Questions (FAQ)

Q: Can P6SMB16A or SMBJP6KE16A-TP be used as direct replacements for P6SMBJ16?

A: Yes. Both parts meet the core electrical specifications: 13.6V reverse standoff voltage, 27.1A peak pulse current, and 600W peak pulse power. Package compatibility (DO-214AA/SMB surface mount) is confirmed for all three parts.

Q: What is the significance of the clamping voltage difference between P6SMBJ16 (23.63V) and the substitutes (22.5V)?

A: The lower clamping voltage in substitute parts provides more aggressive transient suppression, clamping voltage spikes to a lower threshold. This is functionally acceptable and often beneficial in transient protection circuits, as it reduces the peak voltage stress on protected components.

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

A: P6SMB16A carries RoHS compliance certification. SMBJP6KE16A-TP carries ROHS3 compliance and REACH unaffected status. Both meet environmental and regulatory requirements for modern electronics manufacturing.

Q: Does the extended temperature range of SMBJP6KE16A-TP (-55°C to 175°C) provide any advantage?

A: The extended upper temperature limit of 175°C versus 150°C on other parts provides additional thermal margin in high-temperature operating environments. Selection depends on the specific thermal requirements of the application circuit.

Q: Are package dimensions identical across all three parts?

A: All three parts use DO-214AA (SMB) surface mount packaging. Physical footprint and PCB land pattern compatibility are confirmed for direct substitution without layout modifications.