SI-8050JF Equivalent & Substitute Parts

Part Overview

The SI-8050JF is a buck switching regulator IC manufactured by Sanken Electric USA Inc., designed for step-down voltage conversion with a fixed 5V output and 1.5A current capacity. This component operates across an input voltage range of 8V to 40V and is housed in a TO-220-5 package with formed leads. The SI-8050JF is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system design and maintenance applications.

Substiute Parts

SI-8050JF

Sanken Electric USA Inc.In Stock: 9685SI-8050JF Datasheet

Current PartRFQ

LM2592HVT-5.0/NOPB

Texas InstrumentsIn Stock: 6026LM2592HVT-5.0/NOPB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SI-8050JF is determined by the following critical parameters:

• Fixed output voltage of 5V
• Buck topology for step-down conversion
• Through-hole TO-220-5 package compatibility
• Output current capability of 1.5A or greater
• Input voltage range encompassing 8V to 40V minimum
• Operating temperature range supporting -30°C to 125°C or broader

The LM2592HVT-5.0/NOPB from Texas Instruments meets these substitution criteria. This part maintains identical output voltage and package form factor while providing enhanced specifications in output current (2A), input voltage range (4.5V to 60V), and operating temperature range (-40°C to 125°C).

Parameter Comparison

Engineering Selection Recommendations

The LM2592HVT-5.0/NOPB is a direct functional substitute for the obsolete SI-8050JF. Both devices share identical output voltage specification (5V fixed) and compatible TO-220-5 through-hole packaging. The LM2592HVT-5.0/NOPB offers superior specifications across multiple parameters: increased output current capacity (2A versus 1.5A), expanded input voltage range (4.5V to 60V versus 8V to 40V), and extended lower operating temperature limit (-40°C versus -30°C).

The LM2592HVT-5.0/NOPB maintains active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment. The substitute part is suitable for direct replacement in applications where the SI-8050JF specifications are met or exceeded.

Frequently Asked Questions (FAQ)

Q: Can the LM2592HVT-5.0/NOPB directly replace the SI-8050JF in existing designs?

A: Yes. Both devices provide identical 5V fixed output voltage and share compatible TO-220-5 through-hole packaging. The LM2592HVT-5.0/NOPB exceeds the SI-8050JF specifications in output current (2A versus 1.5A) and input voltage range, making it suitable for direct substitution without circuit modification.

Q: What are the key differences between these two parts?

A: The primary differences are output current capacity (1.5A versus 2A), input voltage range (8V-40V versus 4.5V-60V), switching frequency (125 kHz versus 150 kHz), and product status (obsolete versus active). The LM2592HVT-5.0/NOPB provides enhanced performance specifications across all parameters.

Q: Are there any package compatibility concerns?

A: Both parts use TO-220-5 through-hole packages with formed leads. Physical footprint and pin configuration are compatible, allowing direct board-level substitution without layout modifications.

Q: What is the significance of the product status difference?

A: The SI-8050JF is classified as obsolete, indicating discontinued manufacturing and limited future availability. The LM2592HVT-5.0/NOPB maintains active status, ensuring continued supply and support from Texas Instruments.

Q: Do compliance certifications differ between these parts?

A: Both parts are RoHS compliant. The LM2592HVT-5.0/NOPB carries ROHS3 certification, representing the current regulatory standard. Both parts are classified as EAR99 for export control purposes.