SMF16A-M3-08 Equivalent & Substitute Parts

Part Overview

The SMF16A-M3-08 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 16V reverse standoff voltage class and provides transient protection for general-purpose applications. The part is actively produced and RoHS3 compliant with unlimited moisture sensitivity rating.

Substitute parts are identified when electrical parameters remain within acceptable tolerances for the application while maintaining functional equivalence in transient suppression performance.

Substiute Parts

SMF16A-M3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 795SMF16A-M3-08 Datasheet

Current PartRFQ

PTVS64VS1UTR,115

Nexperia USA Inc.In Stock: 12649PTVS64VS1UTR,115 Datasheet

MFR RecommendedRFQ

SMF16A-TP

Micro Commercial CoIn Stock: 2252SMF16A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SMF16A-M3-08 is determined by matching the following critical electrical parameters:

• Voltage - Reverse Standoff (Typ): 16V
• Voltage - Breakdown (Min): 17.8V
• Voltage - Clamping (Max) @ Ipp: 26V
• Current - Peak Pulse (10/1000µs): 7.7A
• Power - Peak Pulse: 200W

Two substitute parts meet these electrical specifications:

SMF16A-TP (Micro Commercial Co) maintains identical electrical performance with the same voltage and current ratings. The primary difference is the package format: SOD-123FL instead of DO-219AB (SMF). Both are surface mount configurations suitable for automated assembly.

PTVS64VS1UTR,115 (Nexperia USA Inc.) operates in a different voltage class (64V reverse standoff) and therefore does not meet the electrical equivalence criteria for direct substitution in circuits designed for 16V protection.

Parameter Comparison

Engineering Selection Recommendations

SMF16A-TP is the direct electrical equivalent to SMF16A-M3-08. Both parts share identical voltage ratings (16V reverse standoff, 26V clamping) and current handling (7.7A peak pulse). Selection between these two depends on package compatibility with the circuit board layout. The SMF16A-TP uses SOD-123FL packaging instead of DO-219AB (SMF), requiring verification of footprint compatibility. Both parts are active products with ROHS3 compliance and unlimited moisture sensitivity rating.

PTVS64VS1UTR,115 operates at a significantly higher voltage class (64V reverse standoff) and is not suitable as a direct substitute for 16V protection circuits. This part is qualified to AEC-Q101 automotive standards, whereas the main part and SMF16A-TP do not carry automotive qualification.

Frequently Asked Questions (FAQ)

Q: Can SMF16A-TP replace SMF16A-M3-08 directly?

A: SMF16A-TP provides electrical equivalence with identical voltage and current ratings. Substitution requires verification that the SOD-123FL package footprint is compatible with the circuit board design originally specified for DO-219AB (SMF) packaging.

Q: Why is PTVS64VS1UTR,115 listed as a substitute if it has different voltage ratings?

A: PTVS64VS1UTR,115 does not meet the electrical equivalence criteria for the SMF16A-M3-08. The 64V reverse standoff voltage is incompatible with circuits designed for 16V transient protection. This part operates in a different application class.

Q: What are the key parameters that determine substitution eligibility?

A: Reverse standoff voltage, breakdown voltage, clamping voltage, peak pulse current, and peak pulse power must remain within the specified tolerances. For the SMF16A-M3-08, these are 16V, 17.8V, 26V, 7.7A, and 200W respectively.

Q: Are there temperature range differences between the main part and SMF16A-TP?

A: Both SMF16A-M3-08 and SMF16A-TP operate across -65°C to 175°C. Temperature performance is equivalent.

Q: What packaging considerations apply to substitution?

A: SMF16A-M3-08 uses DO-219AB (SMF) surface mount packaging. SMF16A-TP uses SOD-123FL surface mount packaging. Both are surface mount configurations, but the physical footprints differ. Board layout and pick-and-place equipment compatibility must be verified before substitution.