P6SMBJ13C Equivalent & Substitute Parts

Part Overview

The P6SMBJ13C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse in the DO-214AA (SMB) surface mount package. This component is designed for general-purpose transient voltage suppression applications with a 600W peak pulse power rating and 34.6A peak pulse current capability. The part is currently listed as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

P6SMBJ13C

LittelfuseIn Stock: 3462P6SMBJ13C Datasheet

Current PartRFQ

P6SMB13CA

Eaton - Electronics DivisionIn Stock: 27212P6SMB13CA Datasheet

MFR RecommendedRFQ

SMBJ11CA

Fairchild SemiconductorIn Stock: 69014SMBJ11CA Datasheet

MFR RecommendedRFQ

SMBJ11CAE3/TR13

Microchip TechnologyIn Stock: 792SMBJ11CAE3/TR13 Datasheet

MFR RecommendedRFQ

SMBJP6KE13CA-TP

Micro Commercial CoIn Stock: 3923SMBJP6KE13CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P6SMBJ13C are qualified based on the following critical parameters that determine functional equivalence:

• Reverse standoff voltage within 11V to 11.1V range
• Clamping voltage (Max) @ Ipp between 18.2V and 19.11V
• Peak pulse current of 33A to 34.6A
• Peak pulse power of 600W
• Surface mount package type (DO-214AA / SMB)
• Bidirectional channel configuration (1 channel)
• Operating temperature range compatible with -55°C to 150°C minimum

All substitute parts listed maintain these electrical and mechanical parameters within acceptable tolerances for direct substitution in the same circuit application.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are active products with current manufacturing status, providing long-term availability compared to the obsolete P6SMBJ13C. Selection among these alternatives should be based on the following factors:

P6SMB13CA (Eaton) and SMBJP6KE13CA-TP (MCC) provide the closest electrical match to the original part, with identical reverse standoff voltage (11.1V) and peak pulse current (34.6A). Both are ROHS3 compliant and available in tape and reel packaging for automated assembly.

SMBJ11CA (Fairchild) and SMBJ11CAE3/TR13 (Microchip) operate at a slightly lower reverse standoff voltage (11V) and peak pulse current (33A), representing a minor reduction in performance margin. SMBJ11CAE3/TR13 offers an extended operating temperature range to -65°C, providing additional thermal margin in cold environment applications.

All substitute parts maintain the same 600W peak pulse power rating, DO-214AA package footprint, and surface mount compatibility required for direct board-level substitution.

Frequently Asked Questions (FAQ)

Q: Can P6SMB13CA be used as a direct replacement for P6SMBJ13C?

A: Yes. P6SMB13CA maintains identical reverse standoff voltage (11.1V), peak pulse current (34.6A), and peak pulse power (600W). The clamping voltage is 18.2V compared to 19.11V in the original part, representing a lower clamping threshold that provides improved transient suppression. Both use the DO-214AA package.

Q: What is the difference between SMBJ11CA and SMBJ11CAE3/TR13?

A: Both parts share the same electrical specifications with 11V reverse standoff voltage and 33A peak pulse current. SMBJ11CAE3/TR13 is supplied in tape and reel packaging and extends the operating temperature range to -65°C, compared to -55°C for SMBJ11CA in bulk packaging. The extended temperature range provides additional design margin for cold environment applications.

Q: Are all substitute parts RoHS compliant?

A: P6SMB13CA, SMBJ11CAE3/TR13, and SMBJP6KE13CA-TP are all RoHS compliant. SMBJ11CA does not specify RoHS status in the provided data. Verify RoHS compliance requirements with your procurement specification before final selection.

Q: What is the impact of the lower clamping voltage in substitute parts?

A: The substitute parts specify a maximum clamping voltage of 18.2V compared to 19.11V in the original P6SMBJ13C. This lower clamping threshold provides more aggressive transient suppression, reducing the peak voltage seen by protected circuitry. This is a beneficial characteristic for circuit protection and does not represent a limitation.

Q: Can SMBJP6KE13CA-TP be used in applications requiring operation above 150°C?

A: SMBJP6KE13CA-TP extends the operating temperature range to 175°C, allowing operation in higher temperature environments compared to other substitutes rated to 150°C. This extended range is suitable for applications with elevated ambient or junction temperatures.