SMBJ150A-13 Equivalent & Substitute Parts

Part Overview

The SMBJ150A-13 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in surface-mount applications. This part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers. Substitute parts must maintain electrical performance across voltage clamping, peak pulse current, and power dissipation specifications while accommodating packaging and compliance variations.

Substiute Parts

SMBJ150A-13

Diodes IncorporatedIn Stock: 3457SMBJ150A-13 Datasheet

Current PartRFQ

SMBJ150A-13-F

Diodes IncorporatedIn Stock: 3796SMBJ150A-13-F Datasheet

DirectRFQ

SMBJ150A-TP

Micro Commercial CoIn Stock: 3836SMBJ150A-TP Datasheet

DirectRFQ

P6SMB150A

Good-Ark SemiconductorIn Stock: 41803P6SMB150A Datasheet

MFR RecommendedRFQ

SMBJ150A

MDDIn Stock: 71245SMBJ150A Datasheet

MFR RecommendedRFQ

SMBJ150A

MDDIn Stock: 71245SMBJ150A Datasheet

MFR RecommendedRFQ

SMBJ150A

MDDIn Stock: 71245SMBJ150A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMBJ150A-13 is determined by the following criteria:

Primary Electrical Parameters (Must Match):

• Voltage - Reverse Standoff (Typ): 150V
• Voltage - Breakdown (Min): 167V
• Voltage - Clamping (Max) @ Ipp: 243V
• Current - Peak Pulse (10/1000µs): 2.5A
• Power - Peak Pulse: 600W

Secondary Parameters (Must Match):

• Type: Zener
• Unidirectional Channels: 1
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount

Acceptable Variations:

• Packaging format (Tape & Reel vs. Cut Tape vs. Bulk)
• Operating temperature range (minimum -50°C acceptable; maximum ≥150°C acceptable)
• RoHS compliance status (both compliant and non-compliant acceptable for legacy applications)
• Manufacturer identity (different manufacturers with identical specifications)

Substitute parts are grouped by direct electrical equivalence. All identified substitutes maintain the core voltage and current specifications required for circuit protection functionality.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Recommended Primary Substitutes):

SMBJ150A-13-F (Diodes Incorporated) and SMBJ150A (MDD) are direct electrical equivalents with identical voltage and current specifications. Both are in active production status with ROHS3 compliance. SMBJ150A-13-F maintains the same manufacturer lineage as the original part and is available in Tape & Reel packaging. SMBJ150A from MDD offers higher inventory availability (71,200 units) and is suitable for high-volume applications.

SMBJ150A-TP (Micro Commercial Co) provides electrical equivalence with extended operating temperature range (-55°C ~ 175°C), offering thermal margin for applications requiring higher junction temperature tolerance.

Alternative Substitute (Electrical Deviation):

P6SMB150A (Good-Ark Semiconductor) exhibits reduced voltage specifications (128V standoff, 143V breakdown, 207V clamping) compared to the SMBJ150A-13 baseline. This part is not electrically equivalent and should only be selected if circuit design permits lower voltage thresholds. Higher peak pulse current capability (2.9A vs. 2.5A) does not compensate for voltage parameter reduction.

Compliance Considerations:

All active substitute parts meet ROHS3 compliance requirements. The original SMBJ150A-13 is RoHS non-compliant; migration to compliant alternatives is recommended for new designs and procurement cycles.

Frequently Asked Questions (FAQ)

Q: Can SMBJ150A-13-F directly replace SMBJ150A-13 in existing designs?

A: Yes. SMBJ150A-13-F is electrically identical to SMBJ150A-13, differing only in packaging format (Tape & Reel vs. bulk) and RoHS compliance status. No circuit modifications are required.

Q: What is the difference between SMBJ150A-13-F and SMBJ150A-TP?

A: Both parts maintain identical voltage clamping (243V) and peak pulse current (2.5A) specifications. SMBJ150A-TP offers extended operating temperature range to 175°C (vs. 150°C maximum for SMBJ150A-13-F). Select SMBJ150A-TP if thermal margin is required in high-temperature environments.

Q: Why is P6SMB150A listed as a substitute if voltage specifications differ?

A: P6SMB150A is identified as a manufacturer-recommended alternative but exhibits reduced voltage parameters (128V standoff vs. 150V). This part is suitable only for applications where lower voltage thresholds are acceptable. Verify circuit protection requirements before selection.

Q: Are all substitute parts available in the same SMB package?

A: Yes. All identified substitutes use DO-214AA (SMB) surface-mount packaging, ensuring mechanical and thermal compatibility with existing PCB layouts and reflow processes.

Q: Which substitute offers the best long-term availability?

A: SMBJ150A from MDD provides the highest inventory level (71,200 units) and active production status, making it the most suitable choice for designs requiring sustained component availability and supply chain stability.

Q: Can I mix different manufacturers' parts in the same production batch?

A: All substitute parts meet identical electrical specifications and package requirements. Mixing manufacturers is acceptable from an electrical standpoint; however, procurement and quality assurance processes should document manufacturer transitions for traceability and compliance documentation.