SMF8.5A-TP Equivalent & Substitute Parts

Part Overview

The SMF8.5A-TP is a unidirectional Zener-type Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose interface protection applications. This surface-mount component operates across a temperature range of -65°C to 175°C and is classified as an active product. Finding equivalent and substitute parts may be necessary due to inventory constraints, supply chain considerations, or packaging format requirements while maintaining identical electrical performance and mechanical compatibility.

Substiute Parts

SMF8.5A-TP

Micro Commercial CoIn Stock: 739SMF8.5A-TP Datasheet

Current PartRFQ

SMF8.5A

MeritekIn Stock: 17461SMF8.5A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMF8.5A-TP is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 8.5V
• Voltage - Breakdown (Min): 9.44V
• Voltage - Clamping (Max) @ Ipp: 14.4V
• Current - Peak Pulse (10/1000µs): 13.9A (tolerance ±0.01A acceptable)
• Power - Peak Pulse: 200W
• Diode Type: Zener
• Unidirectional Channels: 1

Mechanical Equivalence Criteria:

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

The substitute part SMF8.5A (Meritek) meets all electrical parameters within specified tolerances and maintains identical mechanical compatibility through SOD-123F packaging and surface-mount configuration.

Parameter Comparison

Engineering Selection Recommendations

SMF8.5A (Meritek) as Substitute:

The SMF8.5A manufactured by Meritek is a direct electrical and mechanical equivalent to the SMF8.5A-TP. Both components are classified as active products with identical REACH and export compliance status (REACH Unaffected, EAR99). The substitute part maintains all critical electrical parameters within acceptable tolerances and is packaged in the equivalent SOD-123FL format suitable for surface-mount assembly.

The primary distinction between the two parts is packaging format: the original SMF8.5A-TP is supplied in Bulk packaging, while the substitute SMF8.5A is supplied in Tape & Reel (TR) format. This difference affects inventory management and automated assembly processes but does not impact electrical performance or mechanical fit.

The substitute part carries RoHS3 compliance certification and MSL Level 1 (Unlimited) moisture sensitivity rating, indicating robust handling characteristics suitable for standard manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can SMF8.5A (Meritek) be used as a direct replacement for SMF8.5A-TP (Micro Commercial Co)?

A: Yes. Both components are electrically identical across all critical parameters: 8.5V reverse standoff voltage, 9.44V minimum breakdown voltage, 14.4V maximum clamping voltage, and 13.9A peak pulse current. Both are packaged in SOD-123F surface-mount format and are suitable for identical circuit applications.

Q: What is the difference between SOD-123F and SOD-123FL packaging?

A: SOD-123F and SOD-123FL are equivalent surface-mount package designations for this component category. Both provide identical mechanical compatibility and footprint dimensions for PCB assembly. The designation variation reflects different supplier nomenclature standards.

Q: Does the change from Bulk to Tape & Reel packaging affect component performance?

A: No. Packaging format (Bulk versus Tape & Reel) affects only supply chain logistics, inventory handling, and automated assembly compatibility. Electrical performance, thermal characteristics, and mechanical fit remain unchanged.

Q: Are there operating temperature range differences between the two parts?

A: Yes. The SMF8.5A-TP operates across -65°C to 175°C, while the SMF8.5A operates across -55°C to 150°C. For applications requiring the full -65°C to 175°C range, the original SMF8.5A-TP must be used. For applications within -55°C to 150°C, both parts are suitable.

Q: What compliance certifications apply to both parts?

A: Both components are REACH Unaffected and classified under ECCN EAR99 with HTSUS code 8541.10.0080. The substitute part additionally carries RoHS3 compliance and MSL Level 1 moisture sensitivity rating.

Q: Can these parts be intermixed in the same production batch?

A: Yes, provided the application temperature range does not exceed -55°C to 150°C. Both parts meet identical electrical specifications and mechanical requirements within this range. Tape & Reel and Bulk packaging formats can be used interchangeably in manual or automated assembly processes.