P6SMB13CA Equivalent & Substitute Parts

Part Overview

The P6SMB13CA is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. This bidirectional Zener diode operates with an 11.1V reverse standoff voltage and provides 18.2V clamping at peak pulse current, delivering 600W peak pulse power dissipation in a compact DO-214AA (SMB) package. The part is active in production, RoHS3 compliant, and suitable for applications requiring reliable transient suppression across industrial and commercial temperature ranges.

Equivalent and substitute parts are identified based on matching electrical performance parameters and package compatibility, enabling design flexibility and supply chain alternatives while maintaining circuit protection specifications.

Substiute Parts

P6SMB13CA

Littelfuse Inc.In Stock: 27237P6SMB13CA Datasheet

Current PartRFQ

TPSMB13CA

Littelfuse Inc.In Stock: 3015TPSMB13CA Datasheet

DirectRFQ

P6SMB13CA-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 1018P6SMB13CA-E3/52 Datasheet

DirectRFQ

SMBJP6KE13CA-TP

Micro Commercial CoIn Stock: 3923SMBJP6KE13CA-TP Datasheet

DirectRFQ

SMBJ11CA

Fairchild SemiconductorIn Stock: 69014SMBJ11CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P6SMB13CA are qualified based on the following electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 11.0V to 11.1V
• Voltage - Breakdown (Min): 12.2V to 12.4V
• Voltage - Clamping (Max) @ Ipp: 18.2V
• Current - Peak Pulse (10/1000µs): 33A to 34.6A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Type: Zener, Bidirectional

All identified substitutes maintain identical clamping voltage and power dissipation ratings, with peak pulse current tolerance within ±0.5A. Package and mounting specifications are identical across all alternatives, ensuring direct PCB compatibility without layout modifications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active production status and RoHS3 compliance, confirming suitability for current design implementations. Selection among equivalents depends on application-specific temperature requirements and supply chain availability:

TPSMB13CA (Littelfuse) extends operating temperature to -65°C ~ 175°C and carries AEC-Q101 automotive qualification, making it suitable for automotive and extended-temperature applications requiring enhanced reliability.

P6SMB13CA-E3/52 (Vishay) maintains the standard -65°C ~ 150°C range and is designated as a TransZorb® product, offering established performance in general-purpose protection circuits.

SMBJP6KE13CA-TP (Micro Commercial Co) provides the widest operating temperature range (-55°C ~ 175°C) with standard general-purpose classification, suitable for industrial applications with elevated ambient conditions.

SMBJ11CA (Fairchild Semiconductor) operates within -55°C ~ 150°C and is available in bulk packaging, offering cost optimization for high-volume production runs where tape-and-reel packaging is not required.

All parts are electrically interchangeable within the specified parameter tolerances and require no circuit redesign or PCB layout modification.

Frequently Asked Questions (FAQ)

Q: Can TPSMB13CA replace P6SMB13CA in all applications?

A: Yes. TPSMB13CA matches all critical electrical parameters (clamping voltage, peak pulse current, power dissipation) and package specifications. The extended operating temperature range (-65°C ~ 175°C versus -55°C ~ 150°C) and AEC-Q101 qualification provide additional capability without compromising compatibility.

Q: What is the difference between P6SMB13CA-E3/52 and the original P6SMB13CA?

A: Both parts share identical electrical specifications and package form factor. P6SMB13CA-E3/52 is manufactured by Vishay and carries the TransZorb® designation. Peak pulse current is specified at 33A versus 34.6A for the Littelfuse original, representing a 1.5% variance within acceptable substitution tolerance.

Q: Is SMBJ11CA compatible with P6SMB13CA?

A: Yes. SMBJ11CA meets all electrical requirements with minor parameter variations: reverse standoff voltage of 11.0V (versus 11.1V) and peak pulse current of 33A (versus 34.6A). These differences fall within standard component tolerance bands and do not affect circuit protection performance. Package and mounting specifications are identical.

Q: Can I use SMBJP6KE13CA-TP in place of P6SMB13CA?

A: Yes. SMBJP6KE13CA-TP is electrically equivalent with matching clamping voltage, power dissipation, and package specifications. It offers the widest operating temperature range among all substitutes, making it suitable for applications with extreme thermal conditions.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry RoHS3 compliance certification, confirming lead-free construction and suitability for regulated markets and environmental standards.

Q: Does packaging format affect substitutability?

A: Packaging format (tape-and-reel versus bulk) does not affect electrical or mechanical compatibility. SMBJ11CA is available in bulk packaging while others are supplied in tape-and-reel format. Selection depends on production volume and assembly process requirements, not circuit performance.

Q: What temperature range should I select for my application?

A: Choose based on your circuit's maximum ambient and junction temperature requirements. Standard applications (-55°C ~ 150°C) are covered by P6SMB13CA, P6SMB13CA-E3/52, and SMBJ11CA. Extended-temperature applications benefit from TPSMB13CA (-65°C ~ 175°C) or SMBJP6KE13CA-TP (-55°C ~ 175°C).