SMBJ154A-TR Equivalent & Substitute Parts

Part Overview

The SMBJ154A-TR is an active-status transient voltage suppressor (TVS) diode manufactured by STMicroelectronics, designed for general-purpose overvoltage protection applications. This unidirectional zener-type TVS diode operates in the 154V reverse standoff voltage class with a 246V maximum clamping voltage and 2.4A peak pulse current rating. The device is packaged in the industry-standard DO-214AA (SMB) surface-mount form factor and is RoHS3 compliant with unlimited moisture sensitivity rating.

Equivalent and substitute parts are identified when alternative manufacturers offer TVS diodes with matching or compatible electrical characteristics, package specifications, and operational parameters that satisfy the same circuit protection requirements without requiring design modifications.

Substiute Parts

SMBJ154A-TR

STMicroelectronicsIn Stock: 17360SMBJ154A-TR Datasheet

Current PartRFQ

P6SMB180A

Eaton - Electronics DivisionIn Stock: 119451P6SMB180A Datasheet

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P6SMB180A

Eaton - Electronics DivisionIn Stock: 119451P6SMB180A Datasheet

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P6SMB180A_R1_00001

Panjit International Inc.In Stock: 7455P6SMB180A_R1_00001 Datasheet

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SMBJ150CA

MDDIn Stock: 25650SMBJ150CA Datasheet

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SMBJP6KE200A-TP

Micro Commercial CoIn Stock: 2371SMBJP6KE200A-TP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMBJ154A-TR is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Voltage - Reverse Standoff (Typ): 154V
• Voltage - Clamping (Max) @ Ipp: 246V
• Current - Peak Pulse (10/1000µs): 2.4A minimum
• Power - Peak Pulse: 600W

Mechanical Compatibility Requirements:

• Package / Case: DO-214AA or SMB
• Mounting Type: Surface Mount
• Unidirectional configuration (single channel)

Compliance Requirements:

• Product Status: Active
• RoHS Status: RoHS3 Compliant or RoHS Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts must satisfy all electrical parameters within the specified ranges and maintain identical package and mounting specifications. Variations in peak pulse current above 2.4A and clamping voltage at or below 246V are acceptable. Operating temperature range extensions are permissible. Bidirectional configurations are not substitutes for unidirectional devices.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Electrical and Mechanical Equivalence):

P6SMB180A (Eaton - Electronics Division) and P6SMB180A_R1_00001 (Panjit International Inc.) are direct electrical equivalents to the SMBJ154A-TR. Both devices match the 154V reverse standoff voltage, 246V clamping voltage, and 600W peak pulse power rating. The Eaton variant provides 2.5A peak pulse current, while the Panjit variant matches the 2.4A specification. Both maintain identical operating temperature range (-55 to 150°C) and package configuration. All three devices carry active product status and RoHS compliance certifications with unlimited moisture sensitivity rating.

Secondary Substitute (Voltage Class Variation):

SMBJ150CA (MDD) operates at a lower reverse standoff voltage of 150V with a 243V clamping voltage. This device is suitable for applications where the lower voltage threshold is acceptable. The operating temperature range is -50 to 150°C, which is narrower at the lower bound. This part carries ROHS3 compliance and unlimited moisture sensitivity rating.

Higher Voltage Alternative (Voltage Class Variation):

SMBJP6KE200A-TP (Micro Commercial Co) operates at a higher reverse standoff voltage of 171V with a 274V clamping voltage. This device is suitable for applications requiring higher voltage protection margins. The operating temperature range extends to 175°C at the upper bound. Peak pulse current is rated at 2.2A. This part carries ROHS3 compliance and unlimited moisture sensitivity rating.

All substitute parts maintain the DO-214AA (SMB) surface-mount package specification, unidirectional zener-type configuration, and 600W peak pulse power rating. Selection between primary substitutes depends on manufacturer availability, packaging format preference (Cut Tape vs. Tape & Reel), and inventory requirements. Secondary and higher-voltage alternatives are appropriate only when circuit design parameters accommodate the voltage class variations.

Frequently Asked Questions (FAQ)

Q: Can P6SMB180A (Eaton) be used as a direct replacement for SMBJ154A-TR?

A: Yes. The P6SMB180A matches the critical electrical parameters: 154V reverse standoff voltage, 246V clamping voltage, and 600W peak pulse power. Both devices use the DO-214AA (SMB) package and operate across the same temperature range (-55 to 150°C). The Eaton variant provides 2.5A peak pulse current, which exceeds the 2.4A requirement. Both carry active product status and RoHS compliance.

Q: What is the difference between the two P6SMB180A variants listed?

A: The P6SMB180A from Eaton - Electronics Division and the P6SMB180A_R1_00001 from Panjit International Inc. are electrically equivalent, both matching 154V reverse standoff and 246V clamping specifications. The primary difference is manufacturer and packaging format. The Eaton variant is supplied in Tape & Reel (TR) format with 119,400 units in stock. The Panjit variant is also supplied in Tape & Reel (TR) format with 7,389 units in stock. The Panjit variant matches the 2.4A peak pulse current specification exactly, while the Eaton variant provides 2.5A.

Q: Is SMBJ150CA (MDD) a suitable substitute?

A: SMBJ150CA is a secondary substitute with voltage class variation. It operates at 150V reverse standoff (4V lower than the main part) with a 243V clamping voltage (3V lower). The device maintains 600W peak pulse power and the DO-214AA (SMB) package. The operating temperature range is -50 to 150°C, which is 5°C narrower at the lower bound. This part is suitable only when the circuit design accommodates the lower voltage threshold.

Q: Why is SMBJP6KE200A-TP listed as a substitute if it has a higher voltage rating?

A: SMBJP6KE200A-TP is listed as a higher-voltage alternative for applications requiring increased protection margins. It operates at 171V reverse standoff and 274V clamping voltage, providing additional overvoltage headroom. The device maintains the DO-214AA (SMB) package and 600W peak pulse power. Peak pulse current is 2.2A, which is below the main part specification. This substitute is appropriate only when circuit design parameters accommodate the higher voltage class and lower current rating.

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

A: No. The SMBJ154A-TR is supplied in Cut Tape (CT) & Digi-Reel® format. The P6SMB180A variants (Eaton and Panjit) are supplied in Tape & Reel (TR) format. SMBJ150CA packaging format is not specified in the provided data. SMBJP6KE200A-TP is supplied in Cut Tape (CT) & Digi-Reel® format, matching the main part packaging. Packaging format selection depends on assembly process requirements and procurement specifications.

Q: Do all substitute parts meet RoHS compliance requirements?

A: Yes. All listed substitute parts carry either ROHS3 Compliant or RoHS Compliant status. The main part SMBJ154A-TR is ROHS3 Compliant. The Eaton P6SMB180A is RoHS Compliant. The Panjit P6SMB180A_R1_00001, MDD SMBJ150CA, and Micro Commercial Co SMBJP6KE200A-TP are all ROHS3 Compliant. All parts maintain unlimited moisture sensitivity rating (MSL 1).

Q: What is the key parameter that determines substitution eligibility?

A: The reverse standoff voltage (Typ) and clamping voltage (Max) @ Ipp are the primary determinants. The SMBJ154A-TR operates at 154V reverse standoff with 246V clamping. Direct substitutes must match these specifications. Secondary substitutes with voltage class variations (150V or 171V reverse standoff) are acceptable only when circuit design parameters accommodate the voltage differences. All substitutes must maintain the DO-214AA (SMB) surface-mount package and unidirectional zener-type configuration.