SMF12A-TP Equivalent & Substitute Parts

Part Overview

The SMF12A-TP is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose overvoltage protection applications. This surface-mount component operates with a 12V reverse standoff voltage and provides peak pulse current handling of 10.1A with a maximum clamping voltage of 19.9V. The part is actively produced and ROHS3 compliant, making it suitable for modern electronic circuit protection requirements. Identifying equivalent and substitute parts is necessary to ensure supply chain flexibility, optimize inventory management, and maintain design continuity when the primary part becomes unavailable.

Substiute Parts

SMF12A-TP

Micro Commercial CoIn Stock: 1071SMF12A-TP Datasheet

Current PartRFQ

SMF12A

MDDIn Stock: 26418SMF12A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMF12A-TP is determined by strict alignment of the following critical electrical and mechanical parameters:

Electrical Parameters (Must Match):

• Voltage - Reverse Standoff (Typ): 12V
• Voltage - Breakdown (Min): 13.3V
• Voltage - Clamping (Max) @ Ipp: 19.9V
• Current - Peak Pulse (10/1000µs): 10.1A
• Power - Peak Pulse: 200W
• Type: Zener
• Unidirectional Channels: 1

Mechanical Parameters (Must Match):

• Package / Case: SOD-123F
• Mounting Type: Surface Mount

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Product Status: Active

The SMF12A substitute part meets all specified electrical and mechanical requirements, ensuring direct functional equivalence in circuit protection applications.

Parameter Comparison

Engineering Selection Recommendations

The SMF12A manufactured by MDD is a direct electrical and mechanical equivalent to the SMF12A-TP. Both parts are ROHS3 compliant and maintain active product status, ensuring long-term availability and regulatory compliance. The substitute part satisfies all critical electrical parameters including voltage ratings, peak pulse current, and power dissipation specifications.

The operating temperature range of the substitute part (-55°C ~ 150°C) is narrower than the main part (-65°C ~ 175°C). Component selection should account for this difference when applications require operation at temperature extremes outside the substitute part's specified range.

Both parts are suitable for general-purpose transient voltage suppression in surface-mount circuit designs where SOD-123F packaging is required.

Frequently Asked Questions (FAQ)

Q: Can SMF12A replace SMF12A-TP in all applications?

A: The SMF12A meets all critical electrical and mechanical specifications for direct substitution. However, the operating temperature range differs. If your application operates within -55°C to 150°C, the substitute is fully compatible. For applications requiring operation below -55°C or above 150°C, the main part SMF12A-TP is required.

Q: Are there packaging differences between these parts?

A: Both parts use SOD-123F surface-mount packaging. The SMF12A is also designated as SMF package format. No PCB layout modifications are required for substitution.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is based on matching: 12V reverse standoff voltage, 13.3V minimum breakdown voltage, 19.9V maximum clamping voltage, 10.1A peak pulse current, and 200W peak pulse power rating. All these parameters are identical between the main part and substitute.

Q: Do compliance certifications differ between these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. Compliance status is equivalent for regulatory purposes.

Q: What inventory considerations apply to these parts?

A: The SMF12A substitute has significantly higher inventory availability (26,400 pcs) compared to the main part (987 pcs), making it a viable option for supply chain continuity planning.