P6SMB16 Equivalent & Substitute Parts

Part Overview

The P6SMB16 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 13.6V reverse standoff voltage with a 23.63V maximum clamping voltage and 27.1A peak pulse current capability in a DO-214AA (SMB) package. The part is currently listed as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

P6SMB16

Littelfuse Inc.In Stock: 971P6SMB16 Datasheet

Current PartRFQ

P6SMB16A

Eaton - Electronics DivisionIn Stock: 43486P6SMB16A Datasheet

DirectRFQ

P6SMB16A

Eaton - Electronics DivisionIn Stock: 43486P6SMB16A Datasheet

DirectRFQ

SMBJP6KE16A-TP

Micro Commercial CoIn Stock: 6832SMBJP6KE16A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P6SMB16 is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 13.6V
• Voltage - Clamping (Max) @ Ipp: Maximum 23.63V
• Current - Peak Pulse (10/1000µs): 27.1A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB (surface mount)
• Type: Zener, Unidirectional (1 channel)

Substitute parts must maintain identical reverse standoff voltage, equivalent or lower clamping voltage, matching peak pulse current and power ratings, and compatible surface-mount packaging. All identified substitutes meet these electrical and mechanical requirements.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are active products with current manufacturing status, addressing the obsolescence of the original P6SMB16.

P6SMB16A (Eaton - Electronics Division): This direct manufacturer equivalent maintains all critical electrical parameters with a lower clamping voltage (22.5V versus 23.63V), providing improved transient suppression performance. The part is RoHS compliant and available in high inventory (43,380 pcs). Packaging is specified as Tape & Reel (TR), suitable for automated assembly.

SMBJP6KE16A-TP (Micro Commercial Co): This manufacturer-recommended substitute offers an extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 150°C), providing additional thermal margin for high-temperature applications. The part is ROHS3 compliant and REACH unaffected. Inventory availability is 6,822 pcs. Packaging is specified as Tape & Reel (TR).

Both substitutes are electrically and mechanically compatible with the original P6SMB16 design. Selection between them depends on application-specific requirements for temperature range and clamping voltage performance.

Frequently Asked Questions (FAQ)

Q: Can P6SMB16A replace P6SMB16 directly?

A: Yes. The P6SMB16A maintains the same reverse standoff voltage (13.6V), peak pulse current (27.1A), and power rating (600W). The clamping voltage is lower (22.5V versus 23.63V), which improves transient suppression without compromising circuit protection. Both use identical DO-214AA (SMB) surface-mount packaging.

Q: What is the difference between P6SMB16A and SMBJP6KE16A-TP?

A: Both parts share identical electrical specifications for reverse standoff voltage, peak pulse current, and power rating. The primary differences are: SMBJP6KE16A-TP offers an extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 150°C), and the two parts are from different manufacturers (Eaton versus Micro Commercial Co). Clamping voltage is identical at 22.5V for both.

Q: Are all substitutes available in the same package?

A: Yes. All three parts use the DO-214AA (SMB) surface-mount package, ensuring mechanical and footprint compatibility on PCBs designed for the original P6SMB16.

Q: Which substitute should I use for high-temperature applications?

A: SMBJP6KE16A-TP is specified for operation up to 175°C junction temperature, compared to 150°C for both the original P6SMB16 and P6SMB16A. This extended range is suitable for applications requiring higher thermal margins.

Q: Are the substitutes RoHS compliant?

A: Yes. P6SMB16A is RoHS compliant, and SMBJP6KE16A-TP is ROHS3 compliant. Both meet environmental regulatory requirements for lead-free manufacturing.