P6SMBJ150C Equivalent & Substitute Parts

Part Overview

The P6SMBJ150C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc. in the DO-214AA (SMB) surface mount package. This component is designed for general-purpose transient voltage suppression applications with a 128V reverse standoff voltage and 600W peak pulse power rating. The part is currently listed as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

P6SMBJ150C

Littelfuse Inc.In Stock: 676P6SMBJ150C Datasheet

Current PartRFQ

SMBJP6KE150CA-TP

Micro Commercial CoIn Stock: 8289SMBJP6KE150CA-TP Datasheet

DirectRFQ

P6SMB150CA

Eaton - Electronics DivisionIn Stock: 16225P6SMB150CA Datasheet

MFR RecommendedRFQ

SM6T150CA

STMicroelectronicsIn Stock: 8911SM6T150CA Datasheet

MFR RecommendedRFQ

SM6T150CA-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 30292SM6T150CA-E3/52 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6SMBJ150C is determined by the following critical parameters that must remain consistent across equivalent parts:

• Reverse Standoff Voltage: 128V (Typ)
• Bidirectional Configuration: 1 channel
• Package Type: DO-214AA / SMB surface mount
• Peak Pulse Power: 600W
• Mounting Type: Surface mount

The substitute parts listed below maintain these core electrical and mechanical specifications. Variations in clamping voltage (207V to 265V range), peak pulse current specifications, and operating temperature ranges are within acceptable tolerance for this component category and do not affect functional interchangeability in general-purpose transient suppression applications.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are active products with current manufacturing status, providing long-term availability compared to the obsolete P6SMBJ150C. Selection among these equivalents should be based on the following factors:

SMBJP6KE150CA-TP (Micro Commercial Co) and SM6T150CA-E3/52 (Vishay) both maintain the 2.9A peak pulse current specification and 207V clamping voltage, matching the electrical profile most closely to the original part. SMBJP6KE150CA-TP offers an extended operating temperature range to 175°C.

P6SMB150CA (Eaton) provides the same electrical specifications as the Micro Commercial Co part with equivalent operating temperature to the original design.

SM6T150CA (STMicroelectronics) features a higher peak pulse current rating of 15A (8/20µs) and elevated clamping voltage of 265V, providing enhanced transient suppression capability while maintaining the same 600W power rating and 128V standoff voltage.

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can I directly replace P6SMBJ150C with any of these substitute parts?

A: Yes. All substitute parts maintain the critical electrical parameters: 128V reverse standoff voltage, 600W peak pulse power, bidirectional configuration, and DO-214AA SMB package. They are functionally equivalent for general-purpose transient voltage suppression applications.

Q: What is the difference between the 2.9A and 15A peak pulse current ratings?

A: The SM6T150CA features a 15A peak pulse current specification (8/20µs waveform) compared to 2.9A (10/1000µs) in the other parts. This represents a different measurement standard and does not indicate incompatibility. The 600W peak pulse power rating remains constant across all parts.

Q: Does the clamping voltage variation (207V to 265V) affect compatibility?

A: No. All clamping voltages fall within acceptable operating ranges for this component category. The SM6T150CA's 265V clamping voltage provides additional margin for transient suppression without affecting circuit compatibility.

Q: Are there packaging differences between these parts?

A: All parts use the DO-214AA (SMB) surface mount package. Packaging format variations (Tape & Reel, Cut Tape, Digi-Reel) do not affect electrical performance or PCB mounting compatibility.

Q: Which substitute offers the best long-term availability?

A: All four substitutes are active products. Inventory levels vary by supplier, with SM6T150CA-E3/52 (Vishay) showing 30,200 units and P6SMB150CA (Eaton) showing 16,190 units in stock, indicating strong availability.

Q: Do all substitutes meet RoHS compliance requirements?

A: Yes. All substitute parts are RoHS compliant (ROHS3 or RoHS status), meeting environmental and regulatory requirements equivalent to the original P6SMBJ150C.