SMF15CT1 Equivalent & Substitute Parts

Part Overview

The SMF15CT1 is a unidirectional transient voltage suppressor (TVS) diode designed for general-purpose overvoltage protection applications. It features a 15V reverse standoff voltage with a 29V maximum clamping voltage and 5A peak pulse current capability in a compact 6-TSSOP surface mount package. The SMF15CT1 is classified as obsolete, making identification of active equivalent parts essential for new designs and ongoing production requirements.

Substiute Parts

SMF15CT1

onsemiIn Stock: 1261SMF15CT1 Datasheet

Current PartRFQ

SMF15CT1G

onsemiIn Stock: 2607SMF15CT1G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMF15CT1 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications for:

• Reverse standoff voltage: 15V (Max)
• Breakdown voltage minimum: 17V
• Clamping voltage maximum: 29V @ Ipp
• Peak pulse current: 5A (8/20µs)
• Peak pulse power: 100W
• Capacitance: 33pF @ 1MHz
• Operating temperature range: -40°C ~ 125°C
• Package configuration: 6-TSSOP, SC-88, SOT-363
• Channel configuration: 5 unidirectional channels
• Device type: Zener TVS diode

The SMF15CT1G meets all these criteria and is identified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The SMF15CT1G is the direct equivalent for the obsolete SMF15CT1. Both parts are manufactured by onsemi and share identical electrical and mechanical specifications. The primary distinction is product status and compliance certification. The SMF15CT1G is actively produced and carries ROHS3 compliance, whereas the SMF15CT1 is obsolete and RoHS non-compliant. For new designs and production continuity, the SMF15CT1G is the appropriate selection. Both parts maintain identical moisture sensitivity levels and regulatory classifications (REACH Unaffected, ECCN EAR99).

Frequently Asked Questions (FAQ)

Q: Can SMF15CT1G be used as a direct replacement for SMF15CT1?

A: Yes. The SMF15CT1G is electrically and mechanically identical to the SMF15CT1 across all specified parameters, including voltage ratings, current capacity, operating temperature range, and package configuration.

Q: What is the difference between SMF15CT1 and SMF15CT1G?

A: The primary differences are product status and compliance. The SMF15CT1 is obsolete and RoHS non-compliant, while the SMF15CT1G is an active product with ROHS3 compliance. All electrical and mechanical specifications are identical.

Q: Are there packaging differences between these parts?

A: The SMF15CT1 is supplied in standard packaging, while the SMF15CT1G is supplied in Tape & Reel (TR) format. Both use the same 6-TSSOP, SC-88, SOT-363 package configuration and are compatible with identical PCB layouts and assembly processes.

Q: Is the SMF15CT1G suitable for RoHS-compliant applications?

A: Yes. The SMF15CT1G carries ROHS3 compliance certification, making it suitable for applications requiring RoHS compliance. The obsolete SMF15CT1 does not meet RoHS requirements.

Q: What is the moisture sensitivity level for these parts?

A: Both the SMF15CT1 and SMF15CT1G have a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.