SMF58A-T13 Equivalent & Substitute Parts

Part Overview

The SMF58A-T13 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection in surface-mount applications. The device features a 58V reverse standoff voltage with a 93.6V maximum clamping voltage and 2.1A peak pulse current capability in a compact SOD-123F package. The product maintains Active status with full RoHS3 compliance and unlimited moisture sensitivity rating, making it suitable for standard industrial and commercial circuit protection requirements.

Substitute parts are identified when component availability, supply chain constraints, or procurement preferences necessitate alternative sourcing while maintaining identical electrical and mechanical specifications.

Substiute Parts

SMF58A-T13

Littelfuse Inc.In Stock: 1195SMF58A-T13 Datasheet

Current PartRFQ

SMF58A-TP

Micro Commercial CoIn Stock: 3429SMF58A-TP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMF58A-T13 is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 58V
• Voltage - Breakdown (Min): 64.4V
• Voltage - Clamping (Max) @ Ipp: 93.6V
• Current - Peak Pulse (10/1000µs): 2.1A
• Power - Peak Pulse: 200W
• Package / Case: SOD-123F
• Mounting Type: Surface Mount
• Type: Zener
• Unidirectional Channels: 1

The SMF58A-TP manufactured by Micro Commercial Co meets all specified electrical and mechanical parameters, qualifying it as a direct substitute. Both parts share identical voltage ratings, current handling capacity, power dissipation, and physical packaging, ensuring functional interchangeability in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the SMF58A-T13 and SMF58A-TP are Active products with full RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial and commercial applications. Selection between these parts should be based on availability, lead time, and procurement cost, as electrical and mechanical specifications are identical. The SMF58A-TP currently maintains higher inventory availability (3395 pcs vs 1115 pcs), which may influence supply chain decisions. Both devices are suitable for direct substitution in existing designs without circuit modification or re-qualification.

Frequently Asked Questions (FAQ)

Q: Can SMF58A-TP replace SMF58A-T13 in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including voltage ratings, current capacity, power dissipation, and SOD-123F packaging. Direct substitution is possible without design changes.

Q: What are the key differences between these parts?

A: The parts differ only in manufacturer (Littelfuse vs Micro Commercial Co) and operating temperature range (SMF58A-T13: -55°C to 150°C TJ; SMF58A-TP: -65°C to 175°C TA). All electrical specifications and package dimensions are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical RoHS3 compliance, REACH unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating. Regulatory requirements are met by both options.

Q: Does package designation affect compatibility?

A: No. Both parts use SOD-123F packaging with surface-mount configuration. PCB footprints and assembly processes are identical.

Q: Which part should be selected for new designs?

A: Either part is acceptable for new designs. Selection should be based on supplier availability, lead time, and cost. Both maintain Active product status with full regulatory compliance.