P6SMBJ75C Equivalent & Substitute Parts

Part Overview

The P6SMBJ75C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. Housed in the DO-214AA (SMB) package, this component operates across a temperature range of -55°C to 150°C and provides 600W peak pulse power dissipation. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	P6SMBJ75C
Manufacturer	Littelfuse Inc.
Category	Transient Voltage Suppressors (TVS)
Type	Zener
Bidirectional Channels	1
Voltage - Reverse Standoff (Typ)	64.1V
Voltage - Breakdown (Min)	67.55V
Voltage - Clamping (Max) @ Ipp	108.15V
Current - Peak Pulse (10/1000µs)	5.9A
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 P6SMBJ75C is determined by the following critical electrical and mechanical parameters:

Reverse Standoff Voltage (Typ): 64.1V nominal
Voltage - Clamping (Max) @ Ipp: Range 103V to 134V acceptable
Current - Peak Pulse (10/1000µs): 5.8A to 5.9A
Power - Peak Pulse: 600W
Package / Case: DO-214AA (SMB) surface mount
Bidirectional Channels: 1
Operating Temperature Range: Minimum -55°C to 150°C
RoHS Compliance: ROHS3 Compliant

All substitute parts listed maintain compatibility across these parameters while offering active product status and improved availability.

Parameter Comparison

Parameter	P6SMBJ75C (Main)	SMBJ64CA (Meritek)	SMBJP6KE75CA-TP (MCC)	P6SMB75CA (Eaton)	SM6T75CAY (STMicroelectronics)	SMBJ58CE3/TR13 (Microchip)	SMBJ64CAE3/TR13 (Microchip)
Manufacturer	Littelfuse Inc.	Meritek	Micro Commercial Co	Eaton - Electronics Division	STMicroelectronics	Microchip Technology	Microchip Technology
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
Voltage - Reverse Standoff (Typ)	64.1V	64V	64.1V	64.1V	64.1V	58V	64V
Voltage - Breakdown (Min)	67.55V	71.1V	71.3V	71.3V	71.3V	64.4V	71.1V
Voltage - Clamping (Max) @ Ipp	108.15V	103V	103V	103V	134V	103V	103V
Current - Peak Pulse (10/1000µs)	5.9A	5.83A	5.9A	5.9A	30A (8/20µs)	5.8A	5.8A
Power - Peak Pulse	600W	600W	600W	600W	600W	600W	600W
Operating Temperature	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 175°C	-55°C ~ 150°C	-55°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C
Package / Case	DO-214AA, SMB	DO-214AA (SMB)	DO-214AA (SMBJ)	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility)

SMBJP6KE75CA-TP (Micro Commercial Co) and P6SMB75CA (Eaton - Electronics Division) are the closest electrical equivalents to the P6SMBJ75C. Both maintain identical reverse standoff voltage (64.1V), peak pulse current (5.9A), and clamping voltage (103V). SMBJP6KE75CA-TP offers extended operating temperature to 175°C and is available in Tape & Reel packaging. P6SMB75CA is specified for telecom applications and maintains full ROHS3 compliance.

Secondary Substitutes (Acceptable with Parameter Variance)

SMBJ64CA (Meritek) and SMBJ64CAE3/TR13 (Microchip Technology) provide equivalent performance with minimal parameter deviation. Both maintain 64V reverse standoff voltage and 103V clamping voltage. SMBJ64CAE3/TR13 extends the operating temperature range to -65°C and is available in Tape & Reel format with higher inventory availability (793 pcs).

SM6T75CAY (STMicroelectronics) maintains the 64.1V reverse standoff voltage but features a higher clamping voltage of 134V and significantly increased peak pulse current (30A at 8/20µs). This part is automotive-qualified (AEC-Q101) and suitable for applications requiring enhanced transient suppression capability.

Lower Priority Substitute (Voltage Variance)

SMBJ58CE3/TR13 (Microchip Technology) operates at a lower reverse standoff voltage of 58V, representing a 6.1V reduction from the main part specification. This part is suitable only for applications where the lower voltage threshold is acceptable. It offers extended operating temperature range (-65°C to 150°C) and is available in Tape & Reel packaging.

All substitute parts maintain DO-214AA (SMB) package compatibility, surface-mount configuration, 600W peak pulse power rating, and MSL 1 moisture sensitivity classification.

Frequently Asked Questions (FAQ)

Q: Can SMBJ58CE3/TR13 be used as a direct replacement for P6SMBJ75C?

A: SMBJ58CE3/TR13 is not a direct replacement due to its lower reverse standoff voltage of 58V compared to the P6SMBJ75C specification of 64.1V. This part is suitable only for applications where the lower voltage threshold does not compromise circuit protection requirements.

Q: What is the difference between the clamping voltage specifications across substitute parts?

A: Clamping voltage represents the maximum voltage across the TVS diode during transient suppression. The P6SMBJ75C specifies 108.15V maximum clamping. Most substitutes (SMBJ64CA, SMBJP6KE75CA-TP, P6SMB75CA, SMBJ58CE3/TR13, SMBJ64CAE3/TR13) clamp at 103V, which is 5.15V lower. SM6T75CAY clamps at 134V, providing higher voltage suppression. Selection depends on circuit tolerance for clamping voltage variation.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts are housed in the DO-214AA (SMB) surface-mount package, ensuring mechanical and thermal compatibility. However, packaging format (bulk vs. Tape & Reel) varies by manufacturer and part number. SMBJP6KE75CA-TP, P6SMB75CA, SM6T75CAY, SMBJ58CE3/TR13, and SMBJ64CAE3/TR13 are specified as Tape & Reel format. SMBJ64CA (Meritek) does not specify packaging format in available data.

Q: Which substitute offers the best temperature performance?

A: SMBJP6KE75CA-TP (Micro Commercial Co) provides the highest operating temperature range, extending to 175°C junction temperature compared to the P6SMBJ75C specification of 150°C. SMBJ58CE3/TR13 and SMBJ64CAE3/TR13 (both Microchip Technology) extend the lower temperature limit to -65°C, providing a wider overall operating range of -65°C to 150°C.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed maintain RoHS compliance. Six of seven substitutes are ROHS3 compliant. P6SMB75CA (Eaton) is specified as RoHS Compliant without specific ROHS3 designation. All parts maintain MSL 1 (Unlimited) moisture sensitivity classification.

Q: What is the inventory status of substitute parts?

A: SMBJ64CA (Meritek) offers the highest inventory availability at 35,400 pcs. SM6T75CAY (STMicroelectronics) provides 22,872 pcs. SMBJP6KE75CA-TP (Micro Commercial Co) has 3,715 pcs available. P6SMB75CA (Eaton) has 1,468 pcs. SMBJ64CAE3/TR13 (Microchip) has 793 pcs. SMBJ58CE3/TR13 (Microchip) has 1,143 pcs available.

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