SMF4L16A Equivalent & Substitute Parts

Part Overview

The SMF4L16A is a unidirectional transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for telecom applications requiring transient protection. This surface mount component operates with a 16V reverse standoff voltage and provides 400W peak pulse power dissipation in a compact SOD-123F package. The part maintains Active product status with full inventory availability. Equivalent and substitute parts are identified based on matching electrical performance parameters and mechanical compatibility within the SMF4L series.

Substiute Parts

SMF4L16A

Bourns Inc.In Stock: 109136SMF4L16A Datasheet

Current PartRFQ

SMF4L16A

Bourns Inc.In Stock: 109136SMF4L16A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the SMF4L16A is determined by the following critical electrical and mechanical parameters:

Electrical Matching Criteria:

• Voltage - Reverse Standoff (Typ): 16V
• Voltage - Breakdown (Min): 17.8V
• Voltage - Clamping (Max) @ Ipp: 26V
• Current - Peak Pulse (10/1000µs): 15.4A
• Power - Peak Pulse: 400W
• Unidirectional Channels: 1
• Type: Zener

Mechanical Matching Criteria:

• Package / Case: SOD-123F
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C to 150°C (TJ)

Application Compatibility:

• Category: Transient Voltage Suppressors (TVS)
• Applications: Telecom

Parts meeting all specified electrical parameters within the SMF4L series and maintaining identical SOD-123F surface mount packaging are classified as direct substitutes. The SMF4L16A represents the complete specification set for this protection requirement.

Parameter Comparison

Engineering Selection Recommendations

The SMF4L16A maintains Active product status with confirmed inventory of 109,045 pieces in new original condition. This component is REACH Unaffected and classified under ECCN EAR99, meeting regulatory compliance requirements for telecom applications. The part is supplied in Tape & Reel packaging suitable for automated assembly processes.

Selection of the SMF4L16A for transient voltage suppression in 16V telecom circuits is supported by its specified electrical performance parameters and established manufacturing status. The component's SOD-123F surface mount package provides space-efficient integration in modern PCB designs. Compliance certifications and active production status ensure long-term component availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: What defines a direct substitute for the SMF4L16A?

A: A direct substitute must match all critical electrical parameters: 16V reverse standoff voltage, 17.8V minimum breakdown voltage, 26V maximum clamping voltage, 15.4A peak pulse current, and 400W peak pulse power. The substitute must also maintain identical SOD-123F surface mount packaging and -55°C to 150°C operating temperature range.

Q: Can SMF4L16A be used in applications requiring different voltage ratings?

A: No. The SMF4L16A is specified for 16V reverse standoff applications. Different voltage requirements within the SMF4L series require selection of alternative part numbers with corresponding voltage ratings.

Q: Is the SOD-123F package compatible with standard surface mount assembly equipment?

A: Yes. The SOD-123F package is a standard surface mount package compatible with conventional pick-and-place and reflow soldering processes used in automated PCB assembly.

Q: What is the significance of the 10/1000µs pulse waveform specification?

A: The 10/1000µs specification defines the test pulse waveform used to measure peak pulse current and power dissipation ratings. The SMF4L16A is rated for 15.4A peak pulse current and 400W peak pulse power under this standard test condition.

Q: Does the SMF4L16A provide power line protection?

A: No. The SMF4L16A is not designated for power line protection applications. It is specified for telecom transient protection where lower voltage and current levels are present.

Q: What is the operating temperature range for the SMF4L16A?

A: The junction temperature (TJ) operating range is -55°C to 150°C, suitable for industrial and telecom environments requiring extended temperature performance.