P6SMBJ13 Equivalent & Substitute Parts Reference

Part Overview

The P6SMBJ13 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection in surface-mount applications. This component features a 600W peak pulse power rating and operates across the industrial temperature range of -55°C to 150°C. The part is currently classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	P6SMBJ13
Manufacturer	Littelfuse Inc.
Category	Transient Voltage Suppressors (TVS)
Type	Zener
Unidirectional Channels	1
Voltage - Reverse Standoff (Typ)	11.1V
Voltage - Breakdown (Min)	11.75V
Voltage - Clamping (Max) @ Ipp	19.11V
Current - Peak Pulse (10/1000µs)	34.6A
Power - Peak Pulse	600W
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	DO-214AA, SMB
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the P6SMBJ13 is determined by strict equivalence across the following critical parameters:

Unidirectional channel configuration (1 channel required)
Reverse standoff voltage range (11V to 11.1V nominal)
Clamping voltage at peak pulse current (18.2V to 19.11V maximum)
Peak pulse current capability (32.97A to 34.6A)
Power dissipation rating (600W peak pulse)
Surface-mount package format (DO-214AA / SMB)
Operating temperature range (-55°C to 150°C minimum)
RoHS compliance status

All three substitute parts meet these criteria within the allowed electrical and mechanical tolerances for this product category.

Parameter Comparison

Parameter	P6SMBJ13 (Main)	P6SMB13A	SMBJ11A	SMBJ11AE3/TR13
Manufacturer	Littelfuse Inc.	Eaton - Electronics Division	Meritek	Microchip Technology
Product Status	Obsolete	Active	Active	Active
Type	Zener	Zener	Zener	Zener
Unidirectional Channels	1	1	1	1
Voltage - Reverse Standoff (Typ)	11.1V	11.1V	11V	11V
Voltage - Breakdown (Min)	11.75V	12.4V	12.2V	12.2V
Voltage - Clamping (Max) @ Ipp	19.11V	18.2V	18.2V	18.2V
Current - Peak Pulse (10/1000µs)	34.6A	34.6A	32.97A	33A
Power - Peak Pulse	600W	600W	600W	600W
Operating Temperature	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)	-55°C ~ 150°C	-65°C ~ 150°C (TJ)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA (SMB)	DO-214AA, SMB
RoHS Status	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

All three substitute parts are classified as active products with current manufacturing support, providing superior long-term availability compared to the obsolete P6SMBJ13. Selection among these alternatives should be based on the following factors:

P6SMB13A (Eaton - Electronics Division): Offers exact reverse standoff voltage matching (11.1V) and identical peak pulse current specification (34.6A). RoHS compliance is confirmed. This part provides the closest electrical equivalence to the original P6SMBJ13.

SMBJ11A (Meritek): Meets all critical substitution parameters with a nominal reverse standoff voltage of 11V and peak pulse current of 32.97A. ROHS3 compliance and REACH unaffected status are confirmed. Highest inventory availability (50,100 pcs) supports procurement continuity.

SMBJ11AE3/TR13 (Microchip Technology): Provides the widest operating temperature range (-65°C to 150°C), extending lower temperature performance by 10°C. Peak pulse current is 33A with 18.2V clamping voltage. ROHS3 compliance and REACH unaffected status are confirmed. Supplied in Tape & Reel packaging format.

All three parts maintain the 600W power dissipation rating, DO-214AA/SMB package format, and MSL 1 moisture sensitivity classification required for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can P6SMB13A be used as a direct replacement for P6SMBJ13?

A: Yes. P6SMB13A matches the critical electrical parameters: 11.1V reverse standoff voltage, 34.6A peak pulse current, 600W power dissipation, and DO-214AA/SMB package format. Both parts operate across -55°C to 150°C and maintain RoHS compliance.

Q: What is the difference between SMBJ11A and SMBJ11AE3/TR13?

A: Both parts share identical electrical specifications (11V reverse standoff, 18.2V clamping, 600W power rating). The primary difference is packaging format: SMBJ11A is supplied in standard packaging, while SMBJ11AE3/TR13 is supplied in Tape & Reel (TR) format. SMBJ11AE3/TR13 also extends the lower operating temperature limit to -65°C.

Q: Are all substitute parts RoHS compliant?

A: Yes. P6SMB13A is RoHS compliant. SMBJ11A and SMBJ11AE3/TR13 are both ROHS3 compliant. All three parts meet environmental compliance requirements.

Q: What is the impact of the 0.91V difference in clamping voltage between P6SMBJ13 (19.11V) and the substitute parts (18.2V)?

A: The substitute parts provide lower clamping voltage, which represents improved transient suppression performance. This difference falls within the normal design tolerance for TVS diode substitution in general-purpose applications and does not compromise circuit protection.

Q: Which substitute part has the best inventory availability?

A: SMBJ11A (Meritek) offers the highest inventory level at 50,100 pcs, followed by P6SMB13A (Eaton) at 23,850 pcs, and SMBJ11AE3/TR13 (Microchip) at 1,048 pcs.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. All substitute parts use the identical DO-214AA/SMB surface-mount package format, enabling direct PCB footprint compatibility without layout modifications.

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