SMF10A-M3-18 Equivalent & Substitute Parts

Part Overview

The SMF10A-M3-18 is a unidirectional transient voltage suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 10V reverse standoff voltage with a 17V maximum clamping voltage and 11.8A peak pulse current capability. The part is currently active in production and ROHS3 compliant. Substitute parts are identified to address packaging availability, supply chain alternatives, and equivalent electrical performance across different distribution channels and manufacturer options.

Substiute Parts

SMF10A-M3-18

Vishay General Semiconductor - Diodes DivisionIn Stock: 1068SMF10A-M3-18 Datasheet

Current PartRFQ

SMF10A-E3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 20403SMF10A-E3-08 Datasheet

DirectRFQ

SMF10A-TP

Micro Commercial CoIn Stock: 1172SMF10A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMF10A-M3-18 are qualified based on electrical parameter equivalence and compliance certifications. The primary substitution criteria are:

• Voltage - Reverse Standoff: 10V (Typ)
• Voltage - Clamping (Max) @ Ipp: 17V
• Current - Peak Pulse (10/1000µs): 11.8A
• Power - Peak Pulse: 200W
• Operating Temperature Range: -65°C to 175°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Two substitute parts meet these electrical and compliance requirements: SMF10A-E3-08 (Vishay, Cut Tape & Digi-Reel packaging) and SMF10A-TP (Micro Commercial Co, Tape & Reel packaging). Both maintain identical electrical performance and regulatory compliance while offering alternative packaging formats and manufacturer sourcing options.

Parameter Comparison

Engineering Selection Recommendations

All three parts—SMF10A-M3-18, SMF10A-E3-08, and SMF10A-TP—are active products with identical electrical specifications and full regulatory compliance (ROHS3, REACH Unaffected). Selection between these parts should be based on packaging format requirements and supply chain availability.

SMF10A-M3-18 and SMF10A-E3-08 are both Vishay products with DO-219AB (SMF) package compatibility, differing only in tape format (standard Tape & Reel versus Cut Tape & Digi-Reel). SMF10A-TP, manufactured by Micro Commercial Co, uses the SOD-123F package format, which is physically smaller than the DO-219AB package. PCB layout and footprint compatibility must be verified before selecting SMF10A-TP as a substitute.

All parts maintain MSL 1 (Unlimited) moisture sensitivity and are suitable for standard manufacturing and storage conditions without special handling requirements.

Frequently Asked Questions (FAQ)

Q: Can SMF10A-E3-08 be used as a direct replacement for SMF10A-M3-18?

A: Yes. Both parts are manufactured by Vishay, share identical electrical specifications (10V standoff, 17V clamping, 11.8A peak pulse), and use the same DO-219AB (SMF) package. The difference is packaging format: SMF10A-M3-18 uses standard Tape & Reel, while SMF10A-E3-08 uses Cut Tape & Digi-Reel. PCB assembly equipment compatibility should be confirmed with your manufacturing partner.

Q: Is SMF10A-TP compatible with SMF10A-M3-18 designs?

A: SMF10A-TP provides electrical equivalence but uses a different package format (SOD-123F instead of DO-219AB). This requires PCB footprint redesign and re-qualification. Use SMF10A-TP only if your design accommodates the SOD-123F package or if footprint conversion is acceptable for your application.

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

A: Substitution is determined by matching: Voltage - Reverse Standoff (10V), Voltage - Clamping (17V), Current - Peak Pulse (11.8A), Power - Peak Pulse (200W), and Operating Temperature Range (-65°C to 175°C). All three parts meet these criteria.

Q: Are there compliance or regulatory differences between these parts?

A: No. All three parts are ROHS3 compliant, REACH Unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. Regulatory status is equivalent across all substitutes.

Q: Which substitute should I select for high-volume production?

A: SMF10A-E3-08 (Vishay, Cut Tape & Digi-Reel) offers the highest inventory availability (20,300 pcs) and maintains package compatibility with SMF10A-M3-18 designs. Confirm tape format compatibility with your assembly equipment before committing to volume orders.